American Honda Motor Company - The engine exhaust from …...Honda BF75A/BF90A outboard motors are designed for use with boats that have a suitable manufacturer’s power recommendation.

The engine exhaust from thisproduct contains chemicalsknown to the State of California tocause cancer, birth defects, orother reproductive harm.

Keep this owner’s manual handy, so you can refer to it at any time. This owner’smanual is considered a permanent part of the outboard motor and should remain withthe outboard motor if resold.

The information and specifications included in this publication were in effect at thetime of approval for printing. Honda Motor Co., Ltd. reserves the right, however, todiscontinue or change specifications or design at any time without notice and withoutincurring any obligation whatever. No part of this publication may be reproducedwithout written permission.

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1

INTRODUCTION

Congratulations on your selection ofa Honda outboard motor. We arecertain you will be pleased with yourpurchase of one of the finestoutboard motors on the market.

We want to help you get the bestresults from your new outboardmotor and to operate it safely. Thismanual contains the information onhow to do that; please read itcarefully.

As you read this manual you willfind information preceded by a

symbol. That informationis intended to help you avoid damageto your outboard motor, otherproperty, or the environment.

We suggest you read the warrantypolicy to fully understand itscoverage and your responsibilities ofownership. The warranty policy is aseparate document that should havebeen given to you by your dealer.

When your outboard motor needsscheduled maintenance, keep in mindthat your Honda marine dealer isspecially trained in servicing Hondaoutboard motors. Your Honda marinedealer is dedicated to yoursatisfaction and will be pleased toanswer your questions and concerns.

2003 Honda Motor Co., Ltd. AllRights Reserved

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2

A FEW WORDS ABOUTSAFETY

INTRODUCTION

Safety Messages

Safety Headings

Safety Labels

Safety Section

Instructions

IMPORTANT SAFETY INFORMATION.

OUTBOARD MOTOR SAFETY.

Your safety and the safety of othersare very important. And using thisoutboard motor safely is an importantresponsibility.

To help you make informeddecisions about safety, we haveprovided operating procedures andother information on labels and inthis manual. This information alertsyou to potential hazards that couldhurt you or others.

Of course, it is not practical orpossible to warn you about all thehazards associated with operating ormaintaining an outboard motor. Youmust use your own good judgment.

You will find important safety information in a variety of forms, including:

This entire book is filled with important safety information please read itcarefully.

preceded by a safety alert symbol and one ofthree signal words, DANGER, WARNING, or CAUTION.

These signal words mean:

such as

on the outboard motor.

such as

how to use this outboard motor correctly and safely.

You WILL be KILLED or SERIOUSLYHURT if you don’t follow instructions.

You CAN be KILLED or SERIOUSLYHURT if you don’t follow instructions.

You CAN be HURT if you don’t followinstructions.

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3

CONTENTS

...................................OUTBOARD MOTOR SAFETY . 7................IMPORTANT SAFETY INFORMATION . 7

................................SAFETY LABEL LOCATIONS . 9

..................................CONTROLS AND FEATURES . 10CONTROLS AND FEATURE

................................IDENTIFICATION CODES . 10....COMPONENT AND CONTROL LOCATIONS . 11

..............................................................CONTROLS . 17LHT Type (tiller handle)

......................................................Ignition Switch . 17.............Switch Clip and Emergency Stop Switch . 17

..........................................................Choke Knob . 18

..........................................................Throttle Grip . 18..........................................Throttle Friction Knob . 19

.....................................................Gearshift Lever . 19........................................Power Trim/Tilt Switch . 19

..........................................Steering Friction Knob . 20LRT and XRT Types (remote control)

........................Ignition Switch (side-mount type) . 20Switch Clip and Emergency Stop Switch

..............................................(side-mount type) . 21

.............Choke/Fast Idle Lever (side-mount type) . 22Gearshift/Throttle Control Lever

..............................................(side-mount type) . 22......................Ignition Switch (panel-mount type) . 24

Switch Clip and Emergency Stop Switch............................................(panel-mount type) . 24

......................Throttle Button (panel-mount type) . 25Gearshift/Throttle Control Lever

............................................(panel-mount type) . 25.........................Ignition Switch (top-mount type) . 27

Switch Clip and Emergency Stop Switch...............................................(top-mount type) . 27

.........................Throttle Button (top-mount type) . 28Gearshift/Throttle Control Lever

...............................................(top-mount type) . 28Common Controls

........................................Power Trim/Tilt Switch . 30Choke Switch

..................(panel-mount and top-mount types) . 31.............................................Manual Choke Knob . 31

..................................................Power Tilt Switch . 31.............................................Manual Relief Valve . 32

.....................................................Tilt Lock Lever . 32...................................Engine Cover Lock Levers . 32

.............................Transom Angle Adjusting Rod . 33................................................................Trim Tab . 33

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4

CONTENTS

.......................................................INSTRUMENTS . 34.........................Trim Meter (optional equipment) . 34.........................Tachometer (optional equipment) . 34.........................Fuel Gauge (optional equipment) . 34

...........................................................INDICATORS . 35............................................Oil Pressure Indicator . 35...........................................Overheating Indicator . 36

.....................................Cooling System Indicator . 37................................................OTHER FEATURES . 37

.....................................................Overrev Limiter . 37...................................................................Anodes . 37

.............Portable Fuel Tank (optional equipment) . 38..........Fuel Cap Vent Knob (optional equipment) . 38

.................................................Fuel Priming Bulb . 38

................................................BEFORE OPERATION . 39.....ARE YOU READY TO GET UNDER WAY . 39

IS YOUR OUTBOARD MOTOR................................................READY TO GO . 39

................................................................OPERATION . 41....................SAFE OPERATING PRECAUTIONS . 41

.......................................BREAK-IN PROCEDURE . 41.....................TRANSOM ANGLE ADJUSTMENT . 42

....PORTABLE FUEL TANK (optional equipment) . 43................................FUEL HOSE CONNECTIONS . 43

.......................................................FUEL PRIMING . 44......................................STARTING THE ENGINE . 44.......................................LHT Type (tiller handle) . 44

.................LRT and XRT Types (remote control) . 47.....................................EMERGENCY STARTING . 56

.......................................STOPPING THE ENGINE . 58................................Emergency Engine Stopping . 58

.......................................Normal Engine Stopping . 59GEARSHIFTING AND

..............................THROTTLE OPERATION . 61.......................................LHT Type (tiller handle) . 61

.................LRT and XRT Types (remote control) . 62...............................................................STEERING . 63

.......................................LHT Type (tiller handle) . 63.................LRT and XRT Types (remote control) . 63

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5

CONTENTS

................................................................CRUISING . 64......................SHALLOW WATER OPERATIONS . 66

...............MOORING, BEACHING, LAUNCHING . 66

..............SERVICING YOUR OUTBOARD MOTOR . 68...........THE IMPORTANCE OF MAINTENANCE . 68

.....................................MAINTENANCE SAFETY . 69..............................TOOL KIT (optional equipment) . 70

...........................EMERGENCY STARTER ROPE . 70...............................MAINTENANCE SCHEDULE . 71

....................................TRIM TAB ADJUSTMENT . 73

....................................MANUAL RELIEF VALVE . 74ENGINE COVER REMOVAL AND

..................................................INSTALLATION . 74............................................Lock Lever Adjustment . 75

...............................Lock Lever Bracket Adjustment . 75............................................Engine Oil Level Check . 76

....................................................Engine Oil Change . 76.......................................................Oil Filter Change . 77

..................................Engine Oil Recommendations . 79.....................................................Lubrication Points . 80....................................................Spark Plug Service . 83

........................................................REFUELING . 85...........................FUEL RECOMMENDATIONS . 86

.....Fuel Pump Filter Inspection and Replacement . 87Portable Fuel Tank and Filter Cleaning

.........................................(optional equipment) . 89..................................................Anode Replacement . 90

..............................................Propeller Replacement . 91

....................................................................STORAGE . 92...................................STORAGE PREPARATION . 92

..........................................Cleaning and Flushing . 92........................................................................Fuel . 94

.............................................................Engine Oil . 95................HOISTING THE OUTBOARD MOTOR . 96

...................................STORAGE PRECAUTIONS . 98...............................REMOVAL FROM STORAGE . 98

........................................................TRANSPORTING . 99WITH OUTBOARD MOTOR INSTALLED

.............................................................ON BOAT . 99WITH OUTBOARD MOTOR REMOVED

.......................................................FROM BOAT . 99

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6

CONTENTS

TAKING CARE OF UNEXPECTED........................................................PROBLEMS . 100

BATTERY WILL NOT CHARGE ANDELECTRIC STARTER WILL NOT

.......................................................OPERATE . 106OIL PRESSURE INDICATOR LIGHT GOES OFF

................AND ENGINE SPEED IS LIMITED . 107OVERHEATING INDICATOR LIGHT COMES

..........ON AND ENGINE SPEED IS LIMITED . 108........................................SUBMERGED MOTOR . 109

TECHNICAL AND CONSUMER.................................................INFORMATION . 111

.............................TECHNICAL INFORMATION . 111....................................Serial Number Locations . 111

Carburetor Modification for High Altitude.........................................................Operation . 112

.................................................................Battery . 112................................................Oxygenated Fuels . 113

...............Emission Control System Information . 114............................................................Star Label . 116

......................................................Specifications . 118.............................CONSUMER INFORMATION . 120............................Warranty Service Information . 120

.........................................................................INDEX . 121

........................WIRING DIAGRAMS . Inside Back Cover

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7

IMPORTANT SAFETYINFORMATION

Operator Responsibility

OUTBOARD MOTOR SAFETY

Most accidents can be prevented ifyou follow all instructions in thismanual and on the outboard motor.The most common hazards arediscussed below, along with the bestway to protect yourself and others.

It is the operator’s responsibility toprovide the necessary safeguardsto protect people and property.Know how to stop the enginequickly in case of emergency.Understand the use of all controls.

Attach the emergency stop switchlanyard securely to the operator.

Stop the engine immediately ifanyone falls overboard, and do notrun the engine while the boat isnear anyone in the water.

Always stop the engine if youmust leave the controls for anyreason.

Always wear a PFD (PersonalFlotation Device) while on theboat.

Familiarize yourself with all lawsand regulations relating to boatingand the use of outboard motors.

Be sure that anyone who operatesthe outboard motor receives properinstruction.

Be sure the outboard motor isproperly mounted on the boat.

Do not remove the engine coverwhile the engine is running.

Honda BF75A/BF90A outboardmotors are designed for use withboats that have a suitablemanufacturer’s powerrecommendation. Other uses canresult in injury to the operator ordamage to the outboard motor andother property.

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8

Carbon Monoxide HazardRefuel With Care


Exhaust gas contains poisonouscarbon monoxide. Avoid inhalationof exhaust gas. Never run the enginein a closed garage or confined area.

Gasoline is extremely flammable,and gasoline vapor can explode.Refuel outdoors, in a well-ventilated area, with the enginestopped. Never smoke neargasoline, and keep other flamesand sparks away.

Remove any portable fuel tankfrom the boat for refueling. Keepthe portable fuel tank away fromthe battery or other potential sparksources.

Refuel carefully to avoid spillingfuel. Avoid overfilling the fueltank.

After refueling, tighten the fillercap securely. If any fuel is spilled,make sure the area is dry beforestarting the engine.

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9

SAFETY LABEL LOCATIONS


OPTIONALFUEL TANK

The labels shown here contain important safety information. Please read them carefully. These labels are consideredpermanent parts of your outboard motor. If a label comes off or becomes hard to read, contact an authorized HondaMarine servicing dealer for a replacement.

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10

CONTROL AND FEATURE IDENTIFICATION CODES

CONTROLS AND FEATURES

Model

Type

Shaft Length

Tiller Handle

BF75A BF90A

L

X

Remote Control

Power Trim/Tilt

LHT LRT XRT LHT LRT XRT

Trim Meter (optional equipment)

Refer to this chart for an explanation of the Type Codes used in this manual to identify control and feature applications.

LTYPE CODE (example)

R T

T= Power Trim/Tilt

H=Tiller HandleR=Remote Control

L=Long ShaftX=Extra Long Shaft

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COMPONENT AND CONTROL LOCATIONSLHT Type (tiller handle)


EXHAUST PORT

ANTIVENTILATIONPLATE

THROTTLE GRIP

POWER TILTSWITCH

MANUAL RELIEFVALVE

TRANSOM ANGLEADJUSTING ROD ANODE

ENGINE COVER

ENGINE COVERLOCK LEVER

COOLING SYSTEMINDICATOR

ENGINE OILDRAIN BOLT

ANODE

TRIM TAB

WATER INTAKE

IGNITION SWITCH

SHIFT LEVER

FUEL HOSECONNECTOR

CHOKE KNOB

OIL FILLER CAP

WASH PLUG(Flush Plug)

ENGINE OIL DRAINBOLT ACCESS COVER

OIL LEVEL DIPSTICK

THROTTLEFRICTION KNOB

TILLER HANDLE

ANODE

OIL LEVEL CHECK PLUG

GEAR OIL DRAIN PLUG REAR VENT PLUG

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12


SWITCH CLIP

LANYARD

OIL PRESSUREINDICATOR LIGHT

SPARE SWITCH CLIP(optional equipment)

OVERHEATINDICATORLIGHT IGNITION SWITCH

EMERGENCY STOPSWITCH


GEARSHIFT LEVER

POWER TRIM/TILT SWITCH

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13

LRT and XRT Types (remote control)


ENGINE COVER

POWER TILT SWITCH

MANUAL RELIEFVALVE

EXHAUST PORT

ANTIVENTILATIONPLATE

ANODE


ANODE

TRIM TAB

FUEL HOSECONNECTORWASH PLUG

(Flush Plug)

TRANSOM ANGLEADJUSTING ROD

ENGINE OILDRAIN BOLT

CHOKE KNOB

ENGINE OILDRAIN BOLTACCESS COVER

WATER INTAKE

OIL FILLER CAPOIL LEVEL DIPSTICK

COOLING SYSTEMINDICATOR

ANODE

OIL LEVEL CHECK PLUG

GEAR OIL DRAIN PLUG REAR VENT PLUG

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14

Remote Controls (optional equipment)


EMERGENCYSTOP SWITCH


IGNITIONSWITCH

POWER TRIM/TILTSWITCH NEUTRAL

RELEASELEVER

OVERHEATINDICATOR LIGHT

CONTROL LEVERFRICTION ADJUSTER

NEUTRALRELEASELEVER

POWER TRIM/TILTSWITCH

BUZZER(inside)

(SIDE-MOUNT REMOTE CONTROL) (PANEL-MOUNT REMOTE CONTROL)

CHOKE/FAST IDLELEVER

SWITCH CLIP

LANYARD

SPARE SWITCH CLIP

FAST IDLEBUTTON

GEARSHIFT/THROTTLECONTROL LEVER


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CONTROL LEVER

POWERTRIM/TILTSWITCH

CONTROL LEVERS

POWER TRIM/TILTSWITCH (RIGHT)

POWER TRIM/TILTSWITCH (LEFT)


OVERHEATINDICATOR LIGHT

BUZZERIGNITIONSWITCH

CONTROL PANEL(for PANEL/TOP-MOUNT type)

(SINGLE TOP-MOUNT REMOTE CONTROL) (DUAL TOP-MOUNT REMOTE CONTROL)


SWITCH CLIP

LANYARD

CHOKE SWITCH

FAST IDLEBUTTON

FAST IDLEBUTTON

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Fuel Tank (optional equipment) Trim Meter(optional equipment)


FUEL TANK(optional equipment)

FUEL HOSE(standard equipment)

FUEL HOSE CONNECTOR(female)

FUEL GAUGEVENT KNOB

FUEL CAP

PRIMING BULB

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17

CONTROLS

LHT Type (tiller handle)


IGNITION SWITCH

START ON

OFF

LANYARD

EMERGENCY STOP SWITCH

SWITCHCLIP SPARE SWITCH CLIP

Ignition Switch

Switch Clip and Emergency StopSwitch

The ignition switch controls theignition system and starter motor.

Turning the ignition switch key to theSTART position operates the startermotor. The key automatically returnsto the ON position when releasedfrom the START position.

The switch clip must be inserted inthe emergency stop switch in orderfor the engine to start and run. Thelanyard should be attached to theoperator’s PFD (Personal FlotationDevice) or worn around the wrist asshown.

When used as described, theemergency stop switch and lanyardsystem stops the engine if theoperator falls away from the controls.

A spare switch clip is stored in a slotin the control housing (optionalequipment).

The engine will not start unless thegearshift lever (p. ) is in the N(neutral) position, and the emergencystop switch clip is in the emergencystop switch.

Turning the ignition switch to theOFF position stops the engine.

19

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THROTTLE GRIP

OPEN CLOSE

CHOKE KNOB

Throttle GripChoke Knob Throttle grip movement is limitedwhen the gearshift lever (p. ) is inthe R (reverse) or N (neutral) position.

The throttle grip can be turned to theFAST position only when thegearshift lever is in the F (forward)position.

The throttle grip controls enginespeed.

An index mark on the tiller armshows throttle position and is helpfulfor setting the throttle correctly whenstarting (p. ).

The choke knob opens and closes thechoke valves in the carburetors.

The CLOSED position enriches thefuel mixture for starting a coldengine.

The OPEN position provides thecorrect fuel mixture for operationafter starting, and for restarting awarm engine.

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RELEASE

R (reverse)

N (neutral)

F (forward)

SET

THROTTLE FRICTION KNOBGEARSHIFT LEVER POWER TRIM/TILT SWITCH

Throttle Friction Knob Gearshif t Lever Power Trim/Tilt Switch

The throttle friction knob adjustsresistance to throttle grip rotation.

Less friction allows easier throttlegrip rotation. More friction helps tohold a steady throttle setting whilecruising.

The gearshift lever is used to select F(forward), N (neutral), or R (reverse)gears.

The gearshift lever must be in the F(forward) position before the throttlegrip can be turned to the FASTposition.

The power trim/tilt switch is rockerswitch with UP and DN (down)positions for changing the angle ofthe outboard motor.

You can use the power trim/tiltswitch anytime the ignition switch isON, whether the boat is underway orstopped.

The engine can only be started withthe gearshift lever in the N (neutral)position.

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LRT and XRT Types (remotecontrol)



IGNITIONSWITCH

OOFFFFSSTTAARRTTOONN

POWER TRIM/TILT SWITCHSTEERINGFRICTIONADJUSTER

INCREASEFRICTION

DECREASEFRICTION

SWITCH CLIP

Steering Friction Knob

Ignition Switch (side-mounttype)

Trim the outboard motor to obtainthe best performance and stability (p.

).

Tilt the outboard motor for shallowwater operation, beaching, launching,or mooring.

The steering friction knob adjustssteering resistance.

Less friction allows the outboardmotor to turn more easily. Morefriction helps to hold steady coursewhile cruising or to prevent theoutboard motor from swinging whiletrailering the boat.


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LANYARD

SWITCH CLIP

SWITCH CLIP

LANYARD


SPARE SWITCH CLIP

Switch Clip and Emergency StopSwitch (side-mount type)


The ignition switch can be used tooperate the starter motor only whenthe gearshift lever (p. ) is in the N(neutral) position, and the switch clipis in the emergency stop switch.


The switch clip must be inserted inthe emergency stop switch in orderfor the engine to start and run. Thelanyard must be attached to theoperator’s PFD (Personal FlotationDevice) or worn around the wrist asshown.


A spare switch clip is stored in a slotin the control housing (optionalequipment).

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MAXIMUM FAST IDLE


OPEN

CHOKEN (neutral)

CHOKE/FAST IDLE LEVER

NEUTRALRELEASELEVER

Gearshif t/Throttle ControlLever (side-mount type)

(side-mount type)

Choke/Fast Idle Lever

The choke/fast idle lever opens andcloses the choke valves in thecarburetors.

The CHOKE position enriches thefuel mixture for starting a coldengine. The raised lever positionsalso increase the idle speed to preventstalling.

The OPEN position provides thecorrect fuel mixture for operationafter starting, and for restarting awarm engine.

The gearshift/throttle control levercontrols engine speed and selects F(forward), N (neutral), or R (reverse)gears.

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HIGH


N (neutral)

R (reverse)F (forward)

EENNGGIINNEESSPPEEEEDD

EENNGGIINNEESSPPEEEEDD

Moving the control lever 30° from N(neutral) selects the gear, and furthermovement increases engine speed.

The control lever automatically locksitself in the N (neutral) position. Tomove the lever out of the N (neutral)position, you must squeeze theneutral release lever on the undersideof the lever handle.

A friction adjuster near the base ofthe control lever adjusts the operatingresistance of the control lever (p. ).

Less friction allows easier controllever movement. More friction helpsto hold a steady throttle setting whilecruising.

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EMERGENCYSTOPSWITCH

LANYARDSWITCH CLIP

LANYARD

SWITCH CLIP

ON

OFF

START

IGNITIONSWITCH KEY


Ignition Switch(panel-mount type)

(panel-mount type)



The ignition switch can be used tooperate the starter motor only whenthe control lever (p. ) is in the N(neutral) position, and the switch clipis in the emergency stop switch.


26

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SPARE SWITCH CLIP

CONTROLLEVER

Push

N (neutral)CCOONNTTRROOLLLLEEVVEERR

F (forward)R (reverse)

NEUTRALRELEASELEVER

PPuullll uupp NEUTRALRELEASELEVER

FAST IDLE BUTTON

Gearshif t/Throttle ControlLever(panel-mount type)(panel-mount type)

Fast Idle Button


A spare switch clip is stored in thetool bag (optional equipment).



It is necessary to position the controllever in N (neutral) to push in thethrottle button.

By moving the control lever forwardor reverse when the fast idle button ispushed in, the throttle opening willbe increased without engaging thegears.

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TTHHRROOTTTTLLEE OOPPEENNIINNGGTTHHRROOTTTTLLEE OOPPEENNIINNGG

SHIFT

MAXIMUM

MAXIMUM

35°

N (NEUTRAL)

R (REVERSE)

GEARSHIFT/THROTTLE CONTROL LEVER

MMIINNIIMMUUMM MMIINNIIMMUUMM

SHIFT

F (FORWARD)35°


The control lever automatically locksitself in the N (neutral) position. Tomove the lever out of the N (neutral)position, you must squeeze theneutral release lever on the undersideof the lever handle.


A friction adjuster near the base ofthe control lever adjusts the operatingresistance of the control lever.

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EMERGENCYSTOPSWITCH

LANYARDSWITCH CLIP

LANYARD

SWITCH CLIP

ON

OFF

START

IGNITIONSWITCH KEY


Ignition Switch(top-mount type)

(top-mount type)



The ignition switch can be used tooperate the starter motor only whenthe control lever (p. ) is in the N(neutral) position, and the switch clipis in the emergency stop switch.


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SINGLE TYPE

DUAL TYPE

CCOONNTTRROOLLLLEEVVEERRSS

CCOONNTTRROOLLLLEEVVEERR

CONTROLLEVER

Push

SPARE SWITCH CLIP

N (neutral)F (forward)

R (reverse)

FAST IDLE BUTTON

Gearshif t/Throttle ControlLever(top-mount type)(top-mount type)

Fast Idle Button


A spare switch clip is stored in thetool bag (optional equipment).



It is necessary to position the controllever in N (neutral) to push in thethrottle button.

By moving the control lever forwardor reverse when the fast idle button ispushed in, the throttle opening willbe increased without engaging thegears.

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TTHHRROOTTTTLLEE OOPPEENNIINNGG

TTHHRROOTTTTLLEE OOPPEENNIINNGG

SHIFT SHIFT

MAXIMUM

MAXIMUM

35° 35°

MMIINNIIMMUUMM

MMIINNIIMMUUMM

F (FORWARD)

N (NEUTRAL)

R (REVERSE)

GEARSHIFT/THROTTLE CONTROL LEVER


A friction adjuster inside the controlbox adjusts the operating resistanceof the control lever(s).


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Common Controls

Power Trim/Tilt Switch


(side-mount type) (top-mount type)

(panel-mount type)

CONTROLLEVER

CONTROL LEVER

CONTROLLEVER

DUAL TYPE

(LEFT) (RIGHT)

CCOONNTTRROOLLLLEEVVEERR


POWERTRIM/TILTSWITCH



SINGLE TYPE

The power trim/tilt switch is locatedon the control lever. It is a rockerswitch with UP and DN (down)positions for changing the angle ofthe outboard motor.

You can use the power trim/tiltswitch anytime the ignition switch isON, whether the boat is underway orstopped.

Trim the outboard motor to obtainthe best performance and stability (p.

).

Tilt the outboard motor for shallowwater operation, beaching, launching,or mooring.

64

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POWER TILT SWITCHCHOKE SWITCHCHOKE KNOB

OPEN CLOSE

Power Tilt SwitchChoke Switch Manual Choke Knob(panel-mount and top-mounttypes)

The power tilt switch is located onthe engine pan. It is a rocker switchwith UP and DN (down) positionsfor changing the angle of theoutboard motor.

The power tilt switch will operatewithout turning the ignition switchON.

This switch is used with the enginestopped to raise the outboard motorfor mooring, trailering ormaintenance.

When the engine is cold, put thechoke switch ON. A rich fuelmixture will be provided to theengine.

A manual choke knob is located onthe right side of the motor, which canbe used in the event the battery isdischarged. Pull the manual chokeknob, and a rich fuel mixture will beprovided to the engine.

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MMAANNUUAALL((TToo rreelleeaassee))

PPOOWWEERR((TToo ffiixx))

FREE

LLOOCCKK

MMAANNUUAALL RREELLIIEEFF VVAALLVVEE TTIILLTT LLOOCCKKLLEEVVEERR

FREE

LLOOCCKK

FRONT

REAR



FREE

LOCK

Manual Relief Valve Tilt Lock Lever Engine Cover Lock Levers

The outboard motor can be tiltedmanually after opening the manualrelief valve. This allows the outboardmotor to be tilted when no battery isconnected.

The tilt lock lever is used to supportthe outboard motor in the fully-raisedposition.

When the boat is to be moored for along time, tilt the outboard motor asfar as it will go. Then move the tiltlock lever to the LOCK position, andgently lower the outboard motor untilthe lever contacts the stern bracket.

The engine cover lock levers fastenthe engine cover to the outboardmotor.

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TRANSOM ANGLE ADJUSTING ROD

PUSH

TURN UP

STERN BRACKET

UNLOCKEDPOSITION

LOCKEDPOSITION

TO LOCK


TO CHANGE

TRIM TAB TIGHTENING BOLT

Transom Angle Adjusting Rod Trim TabThe transom angle adjusting rodlimits the tilt angle of the outboardmotor when fully lowered.

Proper adjustment prevents theoutboard motor from being trimmedtoo low (p. ).

The trim tab compensates for‘‘torque steer,’’ which is a reaction ofthe outboard motor to propellerrotation.

If uncompensated, torque steer wouldmake the outboard motor tend to turnto one side.

When the trim tab is correctlyadjusted (p. ), steering effort isequal in either direction.

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INSTRUMENTS

Trim Meter(optional equipment)

Tachometer(optional equipment)

Fuel Gauge(optional equipment)


TRIM METER

FUEL GAUGE

TACHOMETER

The trim meter has a range of 0° to20° and indicates the trim angle ofthe outboard motor.

Refer to the trim meter when usingthe power trim/tilt switch to achievethe best performance from the boat.

The tachometer shows engine speedin revolutions per minute.

Refer to the tachometer when usingthe throttle and power trim/tiltcontrols to achieve the bestperformance from the boat.

A fuel gauge is built into the cap ofthe portable fuel tank (optionalequipment).

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35

INDICATORS

Oil Pressure Indicator


(GREEN)

(GREEN)

(GREEN)

LRT and XRT Types

LHT Type

(side-mount type)

(panel-mount and top-mounttypes)

When the green light is lit, oilpressure is OK.

If oil pressure becomes low, thegreen light will go off, and theengine protection system will limitengine speed. Refer to TAKINGCARE OF UNEXPECTEDPROBLEMS, p. .

Low oil pressure indicates that theengine oil level is low, or that there isa problem with the engine lubricationsystem.

Remote control models are equippedwith a buzzer that sounds when thegreen light goes off.

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36

Overheating Indicator


(RED)

(RED)

(RED)

LHT Type

LRT and XRT Types

(side-mount type)

(panel-mount and top-mounttypes)

Engine overheating may be the resultof clogged water intakes.

Remote control models are equippedwith a buzzer that sounds when thered light comes on.

If the engine overheats, the red lightwill come on, and the engineprotection system will limit enginespeed. Refer to TAKING CARE OFUNEXPECTED PROBLEMS,p. .108

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37

Cooling System Indicator OTHER FEATURES

Overrev Limiter

Anodes


COOLING SYSTEM INDICATOR

ANODE(each side)

ANODE(stern bracket)

The engine is equipped with anoverrev limiter to prevent thepossibility of mechanical damagefrom excessive engine speed.

The overrev limiter may be activatedduring operation, limiting enginespeed, if the outboard motor is tiltedexcessively, or when propellerventilation occurs during a sharp turn.

If the overrev limiter is activated,check the trim angle of the outboardmotor. The anodes are made of a sacrificial

material that helps to protect theoutboard motor from corrosion.

Water should flow from the coolingsystem indicator while the engine isrunning. This shows that water iscirculating through the coolingsystem.

If water stops flowing while theengine is running, that indicates acooling system problem, such asclogged water intakes, which willcause engine overheating.

There are two anodes on the gearcase, one on the stern bracket, andtwo small anodes in the waterpassages of the engine block.

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38

Portable Fuel Tank Fuel Cap Vent Knob Fuel Priming Bulb(optional equipment) (optional equipment)


VENT KNOB

OOPPEENN

PRIMING BULB

INLET END(TANK)

OUTLET END(MOTOR)

CCLLOOSSEE

FUEL CAP

UP

The portable fuel tank has a capacityof US gal ( ) and has a fuelgauge built into the cap.

The cap is provided with a vent knobto seal the portable fuel tank forcarrying it to and from the boat.Open the vent knob 2 or 3 turnsbefore starting the engine (p. ).

A priming bulb is built into the fuelhose that connects the fuel tank to theoutboard motor.

Before starting the engine, hold thepriming bulb up in the direction ofthe arrow, then squeeze the primingbulb until it feels firm. This willensure that fuel is supplied to theengine (p. ).

256.6

44

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？

？

Improperly maintainingthis outboard motor, orfailing to correct a problembefore operation, couldcause a malfunction inwhich you could beseriously injured.

Always perform apreoperation inspectionbefore each operation, andcorrect any problem.

39

ARE YOU READY TO GETUNDER WAY

Safety

KnowledgeIS YOUR OUTBOARDMOTOR READY TO GO

BEFORE OPERATION

Your safety is your responsibility. Alittle time spent in preparation willsignificantly reduce your risk ofinjury.

Read and understand this manual.Know what the controls do and howto operate them.

Familiarize yourself with theoutboard motor and its operationbefore you get under way. Knowwhat to do in case of emergencies.

Familiarize yourself with all lawsand regulations relating to boatingand the use of outboard motors.

Always wear a PFD (PersonalFlotation Device) while on the boat.

Attach the emergency stop switchlanyard securely to your PFD or toyour wrist.

For your safety, and to maximize theservice life of your equipment, it isvery important to take a fewmoments before you operate theoutboard motor to check its condition.Be sure to take care of any problemyou find, or have your authorizedHonda Marine dealer correct it,before you operate the outboardmotor.

Before beginning your preoperationchecks, be sure the ignition switch isin the OFF position.

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40

Safety Inspection Maintenance Inspection

BEFORE OPERATION

Look around the outboard motorfor signs of oil or gasoline leaks.

If you are using the portable fueltank (optional equipment), makesure it is in good condition andproperly secured in the boat (p.

).Check that the anodes are securelyattached to the gear case (p. )and are not excessively worn. Theanodes help to protect the outboardmotor from corrosion.

Check to be sure the propeller isundamaged, and the castle nut issecured with the cotter pin (p. ).

Check the engine oil level (p. ).Running the engine with a low oillevel can cause engine damage.

Check that all fasteners are inplace and securely tightened.

Replace any damaged parts.

Check that all controls areoperating properly.

Check the stern bracket to be surethe outboard motor is securelyinstalled.

Wipe up any spills before startingthe engine.

Check that the fuel hose isundamaged and properlyconnected (p. ).

Check the fuel level in the fueltank (p. ).

Check that the battery fluid isbetween the upper and lower levels,and the battery leads are connectedsecurely.

Make sure a tool kit and theemergency starter rope areonboard (p. ). Replace anymissing items.

76

43

43

91

90

70

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41

SAFE OPERATINGPRECAUTIONS

BREAK-IN PROCEDURE

Break-in period: 10 hours

Next 60 minutes:

Next 8 hours:

First 15 minutes:

Next 45 minutes:

OPERATION

IMPORTANT SAFETYINFORMATION

BEFORE OPERATION.

To safely realize the full potential ofthis outboard motor, you need acomplete understanding of itsoperation and a certain amount ofpractice with its controls.

Before operating the outboard motorfor the first time, please review the

on page and thechapter titled

For your safety, avoid starting oroperating the engine in an enclosedarea. Your engine’s exhaust containspoisonous carbon monoxide gaswhich can collect rapidly in anenclosed area and cause illness ordeath.

Run the engine up to a maximum of4,000 to 5,000 rpm, which is about50% to 80% of maximum throttleopening.

Short full-throttle bursts are OK, butdo not operate the enginecontinuously at full throttle.

For boats that plane easily, bring theboat up on plane, and then reduce thethrottle opening to the recommendedrpm range.

Do not run the engine at full throttlefor more than 5 minutes at a time.

Proper break-in operation allows themoving parts to wear in smoothly forbest performance and long servicelife.

Run the engine at trolling speed. Usethe minimum throttle openingnecessary to operate the boat at a safetrolling speed.

Run the engine up to a maximum of2,000 to 3,000 rpm, which is about10% to 30% of maximum throttleopening.

7

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42

TRANSOM ANGLEADJUSTMENT

OPERATION

TO LOCKLOCKED POSITION

STERN BRACKET

TURN UP

PUSH



TO CHANGE UNLOCKEDPOSITION

Do not allow water to enter the idleexhaust port or the engine can bedamaged.

The transom angle adjusting rodlimits the tilt angle of the outboardmotor when fully lowered.

To adjust, first tilt the outboardmotor so it is not resting on the rod.

Proper adjustment prevents theoutboard motor from being trimmedtoo low (p. ).

Push the rod in and turn the end ofthe rod up, so the latch will fall intoline with the rod.

Remove the rod and reinsert it in thedesired position.

Push the rod in and turn the end ofthe rod down, so the latch will fall tothe locked position. Then release therod.

65

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Gasoline is highlyflammable and explosive.

You can be burned orseriously injured whenhandling fuel.

Stop the engine and keepheat, sparks, and flameaway.

Handle fuel onlyoutdoors.

Wipe up spillsimmediately.

43

PORTABLE FUEL TANK FUEL HOSE CONNECTIONS(optional equipment)

OPERATION

FUEL HOSE CONNECTOR

(OUTBOARD MOTOR SIDE)

FUEL HOSE CONNECTOR

(FUEL TANK SIDE)

Secure the portable fuel tank in theboat, so it won’t move around andbecome damaged.

Before use, open the fuel tank ventby turning the vent knob at least 2 or3 turns counterclockwise.

Connect the fuel hose to the tank andthe outboard motor, as shown. Besure both connectors snap securelyinto place.

Place the portable fuel tank (optionalequipment) in a well-ventilatedlocation, away from direct sunlight,to reduce the possibility of a gasolinevapor explosion.

To ensure that the outboard motorwill be able to draw fuel from thetank, place the tank within 6 feet ofthe outboard motor and not morethan 3 feet below the fuel connectoron the outboard motor.

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44

FUEL PRIMING STARTING THE ENGINE

OPERATION

LANYARD

OUTLET END(MOTOR)

INLET END(TANK)

PRIMING BULB

SWITCH CLIP



Hold the priming bulb with the outletend higher than the inlet end.Squeeze the priming bulb severaltimes, until it feels firm, indicatingthat fuel has reached the carburetor.

Check to be sure there are no fuelleaks before starting the engine.

Do not squeeze the priming bulbwhen the engine is running becausethat could flood the carburetors.

Always attach the lanyard to yourPFD, or to your wrist, before startingthe engine.

The emergency stop switch clip andlanyard system is a safety device thatwill stop the engine if you fall awayfrom the controls while operating theboat.

The engine will not start or run,unless the clip is in the switch.

Put the emergency stop switch clipin the emergency stop switch, andattach the lanyard to your PFD(Personal Flotation Device) or toyour wrist, as shown.

1.

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45

OPERATION

CHOKE KNOB

THROTTLE GRIP

N (neutral)

CLOSED

GEARSHIFT LEVER

INDEX MARK

Check the position of the gearshiftlever. It must be in the N (neutral)position for starting.

The engine will not start if thegearshift lever is in the F (forward)or R (reverse) position.

To start a cold engine, pull thechoke knob to the CLOSEDposition.

To restart a warm engine, leave thechoke knob in the OPEN position.

Turn the throttle grip to align theCHOKE position with the indexmark for starting a cold engine.

Align the START position withthe index mark for restarting awarm engine.

2. 3. 4.

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46

OPERATION

START

IGNITIONSWITCHKEY

ON

OFF

Using the electric starter f or morethan 5 seconds at a time willoverheat the starter motor and candamage it.

Turning the ignition switch key tothe START position while theengine is running can damage thestarter motor and f lywheel.

TAKING CARE OFUNEXPECTED PROBLEMS,

Turn the ignition switch key to theSTART position, and hold it thereuntil the engine starts.

When the engine starts, release thekey, allowing it to return to the ONposition.

If the engine fails to start within 5seconds, release the button, andwait at least 10 seconds beforeoperating the starter again.

If the choke knob was pulled tothe CLOSED position to start theengine, gradually push it to theOPEN position as the enginewarms up.

Also, as the engine warms up, thethrottle grip can be turned to theSLOW position without stalling.

Before getting under way, allowthe engine to warm up sufficientlyto ensure good performance.

During the warm-up period, checkthe oil pressure indicator (p. )and cooling system indicator (p.

).

If the indicators show anyabnormal condition, immediatelystop the engine and determine thecause of the problem. Refer to

p..

Above 41°F (5°C), warm up theengine for 2 or 3 minutes.

Below 41°F (5°C), warm up theengine for at least 10 minutes at2,000 rpm.

5.

6.

7.

100

37

35

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47

LRT and XRT Types(remote control)

OPERATION

LANYARDSWITCH CLIP


CONTROLLEVER

N (neutral)

Side-Mount Type


The emergency stop switch clipand lanyard system is a safetydevice that will stop the engine ifyou fall away from the controlswhile operating the boat.

Always attach the lanyard to yourPFD, or to your wrist, beforestarting the engine.

Set the control lever in the N(neutral) position.

The engine will not start if the F(forward) or R (reverse) gears areengaged.


1.

2.

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48

OPERATION

IGNITION SWITCH KEY

ONSTARTOFF

CHOKE/FAST IDLE LEVER

FFAASSTT IIDDLLEERRAANNGGEE

MMAAXXIIMMUUMM FFAASSTTIIDDLLEE

CCHHOOKKEE


Turning the ignition switch key tothe START position while theengine is running can damage thestarter motor and f lywheel.

Turn the ignition switch key to theSTART position and hold it thereuntil the engine starts.


If the engine fails to start within 5seconds, release the key and waitat least 10 seconds beforeoperating the starter again.

To restart a warm engine, leave thechoke and fast idle lever in theOFF position.

The choke and fast idle levercannot be raised unless the controllever is in the N (neutral) position.

The control lever cannot be movedaway from the N (neutral) positionunless the choke and fast idle leveris lowered.

To start a cold engine, fully raisethe choke and fast idle lever.

3. 4.

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49

OPERATION

FAST IDLE LEVER





If the choke and fast idle lever wasused to start the engine, graduallylower the lever as the enginewarms up.

When the choke and fast idle leveris fully lowered, the control levercan be moved away from the N(neutral) position.

During the warm-up period, checkthe oil pressure indicator (p. ),overheating indicator (p. ), andcooling system indicator (p. ).


p..

6.

5.

100

3536

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50

OPERATION


SWITCH CLIP LANYARD

N (neutral)

CONTROLLEVER

Panel-Mount Type







1. 2.

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51

OPERATION

ON

OFF

IGNITIONSWITCHKEY

CONTROLLEVER

N (neutral)

ON

CHOKE SWITCH

START

FAST IDLE BUTTON


Turning the ignition switch key tothe START position while theengine is running can damage thestarter motor and f lywheel.Holding the choke switch in

position (ON), turn the ignitionswich key to the START positionand hold it there until the enginestarts.


To start a cold engine, put on thechoke switch. This will provide arich fuel mixture.

When the engine starts, release thechoke switch and the key, allowingit to return to the ON position.

Press the fast idle button and movethe control lever to open thethrottle 30 50%. This ensureseasy starting.

3.

4.

5.

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52

OPERATION

N (neutral)

CONTROLLEVER TAKING CARE OF

UNEXPECTED PROBLEMS,




If the fast idle control was used tostart the engine, gradually returnthe lever as the engine warms up.

The control lever will not shiftgears unless it is returned to the N(neutral) position.



p..

6.

7.

100

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53

OPERATION


SWITCH CLIP LANYARD

N (neutral)

CONTROLLEVER

Top-Mount Type







1. 2.

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54

OPERATION

ON

OFF

IGNITIONSWITCHKEY

CONTROLLEVER

ON

CHOKE SWITCH

STARTN (neutral)

FAST IDLEBUTTON


Turning the ignition switch key tothe START position while theengine is running can damage thestarter motor and f lywheel.Holding the choke switch in

position (ON), turn the ignitionswich key to the START positionand hold it there until the enginestarts.



Press the fast idle button and movethe control lever to open thethrottle 30 50%. This ensureseasy starting.

To start a cold engine, put on thechoke switch. This will provide arich fuel mixture.

3.

4.

5.

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55

OPERATION

N (neutral)

CONTROLLEVER





If the fast idle control was used tostart the engine, gradually returnthe lever as the engine warms up.



p..

The control lever will not shiftgears unless it is returned to the N(neutral) position.

6.

7.

100

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56

EMERGENCY STARTING

OPERATION

(FRONT)FREE

ENGINE COVER LOCK LEVER

FREE


BOLTSBOLTS(REAR)

CLIPS

TIMING BELT COVER

Set the controls the same as fornormal starting (see pages

). Use the choke and fast idlecontrols if the engine is cold.

Turn the ignition switch key to theON position.

If the battery is discharged, or thestarter motor is inoperative, you canstart the engine manually using theemergency starter rope supplied withthe tool kit.

Unlock and remove the enginecover.

Remove the timing belt cover byunscrewing the four cover boltsand unlatching the three clips.

1. 2.

3.

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57

OPERATION

KNOT EMERGENCYSTARTER ROPE

STARTER PULLEY


Pull the emergency starter ropeslowly until resistance is felt, thenpull briskly.

Keep away from moving partswhile pulling the rope.

If necessary, rewind the rope andpull again. If the engine does notstart after several attempts, refer to

p..

Set the knotted end of theemergency starter rope in the notchin the starter pulley. Wind the ropeclockwise around the starter pulley,as shown.

5.4.

100

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Exposed moving parts cancause injury.

Do not operate theoutboard motor withoutthe engine cover.Use extreme care wheninstalling the enginecover.

58

STOPPING THE ENGINE

Emergency Engine Stopping

OPERATION

SWITCH CLIP

PULL

LANYARD



SWITCHCLIP

PULL

LANYARD

Tiller-Handle Type

Side-Mount Type

If the choke and fast idle control(s)was used to start the engine, returnthe control(s) to the normaloperating position as the enginewarms up.


Leave the recoil starter assemblyoff, but install the engine cover (p.

), and lock it in place bylatching the engine cover latch.

If it was necessary to remove theemergency stop switch lanyardfrom your wrist to perform theemergency starting procedure, besure the lanyard is attached to yourwrist before operating theoutboard motor.

Have your closest authorizedHonda marine dealer check yourelectrical system and correct theproblem, so you can use theelectric starter.

The recoil starter assembly (p. )should be reinstalled after theelectric starter is working again.Install the recoil starter assemblywith the engine stopped.

6.

7.

8.

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59

Normal Engine Stopping

OPERATION

SWITCH CLIP

N (neutral)

CONTROLLEVER

LANYARD

PULL


CONTROL PANEL

SLOW

N (neutral)

GEAR SHIFT LEVER

THROTTLE GRIP

N (neutral)

CONTROLLEVER

Side-Mount Type

Panel-Mount Type

Tiller-Handle Type

Panel-Mount/Top-Mount Types

To stop the engine in an emergency,pull the clip out of the engine oremergency stop switch by pulling thelanyard.

We suggest that you stop the enginethis way occasionally to verify thatthe engine or emergency stop switchis operating properly.

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60

OPERATION

CONTROLLEVER

IGNITION SWITCH

OFF

IGNITION KEY

OOFFFF

OFF

IGNITION SWITCH KEY

N (neutral)

Top-Mount Type Tiller-Handle Type

Side-Mount Type

Panel-Mount/Top-Mount Types

Move the throttle grip to theslowest speed and control gears toN (neutral) position.

Turn the ignition switch key to theOFF position.

When the boat is not in use,remove and store the ignition keyand the emergency stop switch clipand lanyard.

1. 2.

3.

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61

GEARSHIFTING ANDTHROTTLE OPERATION


OPERATION

THROTTLE GRIP

N (neutral)

F (forward)

SLOW

FAST

RR ((rreevveerrssee))

FIX RELEASE


GEARSHIFT LEVER

INDEX MARK

To shift gears, turn the throttle grip tothe SLOW position, then move thegearshift lever to select F (forward),N (neutral) or R (reverse) gears.

The engine can be started with thegearshift lever in the N (neutral)position only.

The throttle grip can be turned to theFAST position only when thegearshift lever is in the F (forward)position.

The gearshift mechanism limitsthrottle grip movement when thegearshift lever is in the R (reverse) orN (neutral) position.

Use the throttle friction knob to helphold a constant throttle setting whilecruising.

Turn the knob clockwise to increasethrottle grip friction for holding aconstant speed.

Turn the dial counterclockwise todecrease friction for easy griprotation.

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62


OPERATION

CONTROLLEVER

NEUTRALRELEASE LEVER

THROTTLEFRICTIONADJUSTER

TO INCREASEFRICTION

TO DECREASEFRICTION

N (neutral)

F (forward)

R (reverse)


R (reverse)

CONTROLLEVER

R (reverse)


CONTROLLEVER

Side-Mount Type

Side-Mount Type

Panel-Mount Type

Top-Mount Type

To shift gears, move the control leverto select F (forward), N (neutral) andR (reverse) gears.

Moving the control lever beyond thegear selection range increases enginespeed.

The control lever cannot be movedfrom the N (neutral) position unlessthe neutral release lever is squeezed(side-mount/panel-mount types).

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63

STEERING



OPERATION


TO INCREASEFRICTION

TO DECREASEFRICTION

TO INCREASEFRICTION

TO DECREASEFRICTION


RIGHT TURN LEFT TURN

Move the tillerhandle to the right.

Move the tillerhandle to the left.

IINNCCRREEAASSEEFFRRIICCTTIIOONN

STEERINGFRICTIONKNOB

DECREASEFRICTION

Panel-Mount Type

Top-Mount Type

Adjust the throttle friction adjuster sothe control lever will hold a constantthrottle setting while cruising.

Steer by moving the tiller handleopposite the direction you want theboat to turn.

Use the steering friction knob to helphold a steady course while cruising.

Turn the knob clockwise to increasesteering friction for holding a steadycourse.

Turn the knob counter-clockwise todecrease friction for easy turning.

Steer the boat in the same manner asan automobile.

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64

CRUISING

TrimEngine Speed

OPERATION

Excessive trim/tilt angle duringoperation can cause propellerventilation, overheating, and waterpump damage.

If engine speed becomes unstable athigh speed due to activation of theoverrev limiter, reduce speed andcheck the trim angle of the outboard

motor.

If, for example, the outboard motoris tilted excessively, or propellerventilation occurs during a sharp turn,the engine may overrev, activatingthe overrev limiter.

The engine is equipped with anoverrev limiter to prevent thepossibility of mechanical damagefrom excessive engine speed.

For rough water conditions or largewaves, slow down to prevent thepropeller from rising out of the water.

For best fuel economy, limit thethrottle opening to 80%. Use thethrottle friction control (p. )to help you hold a steady speed.

Use the power trim/tilt switch to trimthe outboard motor for the bestperformance and stability.

You can use the power trim/tiltswitch at any time, whether the boatis under way or stopped.

Press the UP or DN (down) side ofthe switch to adjust the angle of theoutboard motor.

It is necessary to trim the angle of theoutboard motor to compensate forchanges in boat load, weightdistribution, water conditions, orpropeller selection.

Under normal conditions, the boatwill perform best when the

antiventilation plate is level with thewater.

When cruising into a high wind, trimthe outboard motor down slightly tolevel the boat and improve stability.With a tail wind, trim the outboardmotor up slightly.

Refer to the trim meter (p. ) for anindication of whether the motor istrimmed high or low.

61 63

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65

OPERATION


(single type)

(dual type)

(RIGHT)(LEFT)



BOW TOO LOW DUE TO1. LOAD IN THE FRONT2. MOTOR TRIMMED TOO LOW

BOW TOO HIGH DUE TO1. LOAD IN THE REAR2. MOTOR TRIMMED TOO HIGH

MOTORTRIMMED TOOLOW

MOTORTRIMMED TOOHIGH

MOTOR TRIMMEDCORRECTLYROUGH

WAVES

POWER TRIM/TILT SWITCHPOWER TRIM/TILT SWITCH

Side-Mount Type

Tiller-Handle Type Panel-Mount Type

Top-Mount Type

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66

SHALLOW WATEROPERATION

MOORING, BEACHING,LAUNCHING

OPERATION

TIGHTENING BOLTTRIM TAB

An excessive trim/tilt angle duringoperation can cause propellerventilation, overheating, and waterpump damage. This type of damageis not covered by the Distributor’sLimited Warranty.

If steering effort is not equal in bothdirections, adjust the trim tab tocompensate for ‘‘torque steer,’’which is the reaction of the outboardmotor to propeller rotation.

Adjust the trim tab with the enginestopped. Loosen the bolt above thetrim tab, turn the trim tab, thentighten the bolt securely.

When the trim tab is correctlyadjusted, steering effort will be equalin both directions.

When operating in shallow water, usethe power trim/tilt switch (p. ) totilt the outboard motor, so thepropeller and gear case won’t hit thebottom.

Proceed at low speed, and monitorwater flow from the cooling systemindicator (p. ) to be sure theoutboard motor is not tilted so highthat the water intakes are out of thewater.

To raise the outboard motor out ofthe water while the engine is stoppedand the boat is moored, or formaximum clearance when beachingor launching, use the power tiltswitch on the engine pan to tilt theoutboard motor as far as it will go,move the tilt lock lever to the LOCKposition, then gently lower theoutboard motor until the levercontacts the stern bracket.

If more clearance is needed to swingthe tilt lock lever into the LOCKposition, rock the outboard motorback slightly by pulling on the enginecover grip.

To lower the outboard motor, tilt up,move the tilt lock lever to the FREEposition, then lower the outboardmotor to the desired position.

64

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67

OPERATION

POWER TILT SWITCH

TILT LOCKLEVER(Lock position)


MANUAL RELIEF VALVE

FFRREEEE

LLOOCCKK


Do not attempt to use the power tiltswitch to tilt the outboard motordown while the tilt lock lever is in thelock position. Damage to the powertilt system may occur.

For manual tilting, use a screwdriverto turn the valve counterclockwise 1or 2 turns. Close the valve firmlyafter positioning the engine.

Be sure the valve is closed beforeoperating the outboard motor. If thevalve is not closed, the outboardmotor will tilt up when operated inreverse.

The outboard motor can also be tiltedmanually after opening the manualrelief valve. This feature enables theoutboard motor to be tilted when nobattery is connected.

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Improperly maintainingthis outboard motor, orfailure to correct a problembefore operation, can causea malfunction in which youcould be seriously hurt orkilled.

Always follow theinspection andmaintenancerecommendations andschedules in this owner’smanual.

68

THE IMPORTANCE OFMAINTENANCE

Maintenance, replacement, orrepair of the emission controldevices and systems may beperformed by any marine enginerepair establishment or individual,using parts that are ‘‘certified’’ toEPA standards.

SERVICING YOUR OUTBOARD MOTOR

Good maintenance is essential forsafe, economical, and trouble-freeoperation. It will also help reduce airpollution.

To help you properly care for youroutboard motor, the following pagesinclude a maintenance schedule,routine inspection procedures, andsimple maintenance procedures usingbasic hand tools. Other service tasksthat are more difficult, or requirespecial tools, are best handled byprofessionals and are normallyperformed by a Honda technician orother qualified mechanic.

The maintenance schedule applies tonormal operating conditions. If youoperate your outboard motor underunusual conditions, consult anauthorized Honda marine dealer forrecommendations applicable to yourindividual needs and use.

Remember that your authorizedHonda marine dealer knows youroutboard motor best and is fullyequipped to maintain and repair it.

To ensure the best quality andreliability, use only new, genuineHonda parts or their equivalents forrepair and replacement.

03/03/24 16:54:47 31ZW0601_069

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－

－

Failure to properly followmaintenance instructionsand precautions can causeyou to be seriously hurt orkilled.

Always follow theprocedures andprecautions in the owner’smanual.

69

MAINTENANCE SAFETY Safety Precautions

Burns from hot parts.

Injury from moving parts.

Carbon monoxide poisoningfrom engine exhaust.


Some of the most important safetyprecautions follow. However, wecannot warn you of everyconceivable hazard that can arise inperforming maintenance. Only youcan decide whether or not you shouldperform a given task.

Make sure the engine is off beforeyou begin any maintenance orrepairs. This will eliminate severalpotential hazards:

Read the instructions before youbegin, and make sure you have thetools and skills required.

To reduce the possibility of fire orexplosion, be careful whenworking around gasoline. Use onlya nonflammable solvent, notgasoline, to clean parts. Keepcigarettes, sparks, and flames awayfrom all fuel-related parts.

Wear gloves when handling thepropeller to protect your handsfrom sharp edges.Let the engine and exhaust

system cool before touching.

Do not run the engine unlessinstructed to do so.

Be sure there is adequateventilation whenever youoperate the engine.

03/03/24 16:54:58 31ZW0601_070

×

×

70

TOOL KIT (optional equipment) EMERGENCY STARTERROPE


OIL CHECK SCREWDRIVER

PHILLIPS SCREWDRIVER

SCREWDRIVER HANDLE

SPARK PLUG WRENCH

14 17 mm WRENCH

10 12 mm WRENCH

8 mm WRENCH

FLAT SCREWDRIVER

PLIERS

TOOL BAG

EMERGENCY STARTER ROPE

The following tool kit can be purchased from an authorized Honda marinedealer and may be used for simple maintenance procedures and emergencyrepairs. Keep this tool kit or an equivalent onboard, so they will always beavailable if you need them.

An emergency starter rope issupplied. Keep the emergency starterrope on the boat, so it will always beavailable if you need it.

03/03/24 16:55:09 31ZW0601_071

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○○○

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71

MAINTENANCE SCHEDULE


ITEM

Perform at every indicated month oroperating hour interval, whichevercomes first.

REGULAR SERVICE PERIOD

After useEach useFirst month

or20 hrs.

(2)

(2)(2)(2)

(1)

Every 6 monthsor

100 hrs.

(2)

(2)(2)

(1)

Every yearor

200 hrs.

(2)(2)

(2)

Every 2 yearsor

400 hrs.

Check levelChangeChangeReplaceCheck-adjustCheck-adjustCheck-adjustCheck-adjustCheck-adjustReplaceCheckCheckGrease

Engine oil

Gear case oilEngine oil filterTiming beltCarburetor linkageIdling speedValve clearanceSpark plug

Propeller and Cotter pinAnodeLubrication

(3)

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○○

○

○

○

○

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72


ITEM

Every 2 yearsor

400 hrs.

Perform at every indicated month oroperating hour interval, whichevercomes first.

REGULAR SERVICE PERIODEvery year

or200 hrs.

(2)

(2)

Fuel tank and tank filterThermostatFuel filter

Fuel line

Battery and cable connectionBolts and nutsCrankcase breather tubeCooling water passages

CleanCheckCheckChangeCheckReplaceCheck level-tightnessCheck-tightnessCheckClean

Each use After use

(4)

First monthor

20 hrs.

(2)

Every 6 monthsor

100 hrs.

(2)

Every 2 years (If necessary) (2)

(3)

For professional commercial use, log hours of operation to determine proper maintenance intervals.

These items should be serviced by an authorized Honda marine dealer, unless you have the proper tools and are mechanically proficient.Refer to the Honda shop manual for service procedures.

Lubricate more frequently when used in salt water.

Emission related items.

When operating in salt water, turbid or muddy water, the engine should be flushed with clean water after each use.

(1)

(2)

(3)

(4)

03/03/24 16:55:32 31ZW0601_073

73

TRIM TAB ADJUSTMENT




LEFT

RIGHT

The trim tab compensates for‘‘torque steer’’ which is a reaction ofthe outboard motor to propellerrotation.

If uncompensated, torque steer wouldmake the outboard motor tend to turnto one side.

When the trim tab is correctlyadjusted, steering effort is equal ineither direction.

If steering effort is unequal, loosenthe trim tab bolt and adjust the angleof the trim tab. Retighten the trim tabbolt securely. If less effort is required to make left

turns, move the back of the trim tableft.

Adjust the trim tab in smallincrements, and retest steering effortwith the boat evenly loaded andrunning at cruising speed.

If less effort is required to make rightturns, move the back of the trim tabright.

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74

MANUAL RELIEF VALVE ENGINE COVER REMOVALAND INSTALLATION


MANUAL RELIEF VALVE



LLOOCCKK

FRONT


UNLOCK

UUNNLLOOCCKK

LLOOCCKK


REAR

Be sure the valve is closed beforeoperating the outboard motor. If thevalve is not closed, the outboardmotor will tilt up when operated inreverse.

For manual tilting, use a screwdriverto turn the valve counterclockwise 1or 2 turns. Close the valve firmlyafter positioning the outboard motor.

The outboard motor can be tiltedmanually after opening the manualrelief valve. This feature enables theoutboard motor to be tilted when nobattery is connected.

The engine cover lock levers fastenthe engine cover to the outboardmotor.

To remove the engine cover, turnboth front and rear levers to theunlocked position, then lift theengine cover off the outboard motor.

To install the engine cover, place thecover on the outboard motor, thenturn both front and rear lock levers tothe locked position.

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－－

－－－－

－－0.19 0.23 in (4.8 5.8 mm)

75

Lock Lever Adjustment Lock Lever BracketAdjustment


INSPECTION POINT

INSPECTION POINT

REAR

RETAINING BOLT0.19 0.23 in(4.8 5.8 mm)

00..1199 00..2233 iinn((44..88 55..88 mmmm))

FRONT

HOOK BRACKET

Engine Cover ClearanceInspection

1.

2.

3.

4.

A loose engine cover may rattle orallow water to enter. Check whetherthe engine cover fits properly andadjust if necessary.

With the engine cover in place andboth front and rear lock levers in thelocked position, measure theclearance between the engine coverand the engine undercase at the locklevers.

If the clearance is outside thespecified range, adjust the lock leverbrackets.

Remove the engine cover.

After adjustment, tighten theretaining bolts securely, and installthe engine cover.

Recheck the engine coverclearance, and readjust if necessary.

Specified engine cover clearance:

Loosen the retaining bolts on thefront and/or rear lock leverbrackets, and move the bracket(s)as necessary to obtain the specifiedengine cover clearance.

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76

Engine Oil Level Check Engine Oil Change


UPPERLIMIT

LOWERLIMIT

OIL FILLER CAP

OIL LEVEL DIPSTICK

SCREW

DRAIN PLUG COVER

DRAIN BOLT

Running the engine with a low oillevel can cause engine damage.

Check the engine oil level with theengine stopped and the outboardmotor in the vertical position.

Unlock and remove the enginecover (p. ).

Remove the dipstick and wipe itclean.

Insert the dipstick all the way in,then remove it and check the oillevel shown on the dipstick. Remove the screw from the oil

drain cover, and remove the cover.Install and lock the engine cover.

Install the oil filler cap and tightenit securely.

If the oil level is low, remove theoil filler cap, and add oil to reachthe upper limit mark shown on thedipstick. Use the oil recommendedon p. .

An engine oil evacuation device maybe used to remove the engine oil.

Drain the used oil while the engine iswarm. Warm oil drains quickly andcompletely.


1.

2.

3.

4.

5.

6.

1.

2.

74

78

74

03/03/24 16:56:30 31ZW0601_077

4.2 US qt (4.0 )

4.8 US qt (4.5 )

77

Oil Filter Change


WASHER

GUIDE

DRAIN PLUG

Improper disposal of engine oilcan be harmf ul to the environment.If you change your own oil, pleasedispose of the used oil properly.Put it in a sealed container, andtake it to a recycling center. Donot discard it in a trash bin ordump it on the ground.

Place a suitable container belowthe oil drain guide to catch theused oil, then remove the oil fillercap and the drain plug.

Allow the used oil to draincompletely, then reinstall theengine oil drain plug, and tighten itsecurely.

Install the oil drain cover andsecure it with the screw.

With the outboard motor in avertical position, fill to the upperlimit mark on the dipstick (p. )with the recommended oil.Engine oil refill capacity:Without oil filter change:

With oil filter change:

Install the oil filler cap and tightenit securely.

Install and lock the engine cover.

Drain the engine oil, and reinstallthe drain plug and oil drain cover(see Engine Oil Change on p. ).

Tilt the outboard motor, and placea suitable container below the oildrain guide to catch the used oil.

Use a suitable tool to remove theoil filter, and throughly drain thefilter into the used oil container.

3.

4.

5.

6.

7.

8.

76

1.

2.

3.

76

03/03/24 16:56:46 31ZW0601_078

16 lbf·ft (22 N·m , 2.2 kgf·m)

78


OIL FILTER

USE A SUITABLE TOOL

OIL DRAIN GUIDE

RUBBER SEAL

Use only a genuine Honda oilf ilter or a f ilter of equivalentquality specif ied f or your model.Using the wrong f ilter, or a non-Honda f ilter which is not ofequivalent quality, may causeengine damage.

Running the engine without watercan cause serious engine damage.If you are changing the oil f ilterwhile the outboard motor is out ofthe water, use the water hoseadapter (optional part) and a hoseto supply water.

Clean the oil filter mounting base,and coat the gasket of the new oilfilter with clean engine oil.

Screw on the new filter by handuntil it contacts the engine, thenuse a suitable tool to tighten thefilter an additional 7/8 turn.

OIL FILTER TIGHTENINGTORQUE:

Return the outboard motor to thevertical position, and fill thecrankcase with the specifiedamount (p. ) of therecommended oil.

Start the engine and check forleaks.

Stop the engine, and check the oillevel as described on page . Ifnecessary, add oil to bring the oillevel to the upper limit mark on thedipstick.

4.

5.

6.

7.

8.76

77

03/03/24 16:56:59 31ZW0601_079

SAE Viscosity Grades

AMBIENT TEMPERATURE

79

Engine Oil Recommendations


Oil is a major factor affectingperformance and service life. Use4-stroke automotive detergent oil.

The SAE oil viscosity and serviceclassification are in the API label onthe oil container. Honda recommendsthat you use API SERVICE categorySG, or SH oil with the ‘‘starburst’’certification mark displayed on thecontainer.

SAE 10W-30 is recommended forgeneral use.

03/03/24 16:57:05 31ZW0601_080

80

Lubrication Points


TILLER HANDLEPIVOT

GEAR SHIFTLEVER

THROTTLE FRICTION KNOB

THROTTLE PIPE

TILLER HANDLE BRACKET

Apply Honda Marine Corrosion Inhibitor (or equivalent) to all areas under the engine cover except the belts.

Wipe the outside of the engine with a cloth dipped in oil.Apply marine anticorrosion grease to the following parts:Lubrication interval:After the first 20 hours or 1 month, then every 100 hoursor 6 months. (Refer to the maintenance schedule page

).

Apply anticorrosion oil to pivot surfaces where greasecannot penetrate.

71

03/03/24 16:57:21 31ZW0601_081

81


THROTTLE REEL

TILT BRACKET

SHIFT ARM

TILT SHAFT

PROPELLER SHAFT

03/03/24 16:57:34 31ZW0601_082

82


CHOKE ARM

ADJUSTING ROD

CHOKE KNOB

SWIVEL CASE

THROTTLE ARM/SHIFT SHAFT

03/03/24 16:57:47 31ZW0601_083

－－

－－

X22ESR-U (DENSO)DR7EA (NGK)

83

Spark Plug Service


SPARK PLUGWRENCH

SEALINGWASHER

0.024 0.028 in(0.60 0.70 mm)

Incorrect spark plugs can causeengine damage.

RECOMMENDED SPARK PLUGS:

Disconnect the spark plug capsfrom the spark plugs. Inspect the spark plugs. Replace

them if the electrodes are worn, orif the insulators are cracked orchipped. Clean the spark plugswith a wire brush if you are goingto reuse them.


Measure the spark plug electrodegap with a suitable gauge. The gapshould be 0.024 0.028 inches(0.60 0.70 mm).

Remove the spark plugs with aspark plug wrench.

1.

2.

3.

4. 5.

74

03/03/24 16:58:01 31ZW0601_084

84


PLUG 1

PLUG 2

PLUG 3

PLUG 4

CORD 1

CORD 2

CORD 3

CORD 4

Loose spark plugs can overheatand damage the engine.Overtightening the spark plugscan damage the threads in thecylinder head.

Install the spark plugs carefully,by hand, to avoid cross-threading.

After each spark plug seats, tightenwith a spark plug wrench suppliedin the tool kit to compress thesealing washer.

If reinstalling used spark plugs,tighten 1/8 - 1/4 turn after thespark plugs seat.

If installing new spark plugs,tighten 1/2 turn after the sparkplugs seat. Attach the spark plug caps. Each

cord is marked with a number nearthe spark plug cap. Match the cordnumbers with the cylindernumbers, as shown.

Install and lock the engine cover.

6.

7.

8.

9.

03/03/24 16:58:10 31ZW0601_085

6.61 US gal (25.0 )



Stop the engine and keepheat, sparks, and flameaway.Handle fuel onlyoutdoors.Wipe up spillsimmediately.

85

REFUELING

Portable Fuel Tank(optional equipment)


FUEL CAP

FUEL GAUGE

SAFE FILL LEVEL

CCLLOOSSEEOOPPEENN

VENT KNOB

FUEL TANK CAPACITY:

To refuel, turn the vent knobcounterclockwise to the OPENposition, and unscrew the fuel tankcap.

Refuel in a well-ventilated area. Fillthe tank to the SAFE FILL LEVELline.

After refueling, install the cap andtighten it securely. Turn the ventknob clockwise to the CLOSEDposition, and return the fuel tank tothe boat.

Never refill the fuel tank inside abuilding where gasoline fumes mayreach flames or sparks. Keepgasoline away from appliance pilotlights, barbecues, electric appliances,power tools, etc.

Spilled fuel is not only a fire hazard,it causes environmental damage.Wipe up spills immediately.

Remove the fuel tank from the boatfor refueling.

Check the fuel gauge and refill thetank when necessary.

03/03/24 16:58:26 31ZW0601_086

86

FUEL RECOMMENDATIONS

Use unleaded gasoline with a pumpoctane rating of 86 or higher.


Running the engine with persistentspark knock or pinging can causeengine damage.

Distributor’s LimitedWarranty

Your outboard motor is certified tooperate on unleaded gasoline.Unleaded gasoline produces fewerengine and spark plug deposits andextends exhaust system life.

Never use stale or contaminatedgasoline or an oil/gasoline mixture.Avoid getting dirt or water in the fueltank.

Occasionally you may hear a light‘‘spark knock’’ or ‘‘pinging’’(metallic rapping noise) whileoperating under heavy loads. This isno cause for concern.

If spark knock or pinging occurs at asteady engine speed, under normalload, change brands of gasoline. Ifspark knock or pinging persists, seean authorized Honda marine dealer.

Running the engine with persistentspark knock or pinging is misuse,and the

does not cover partsdamaged by misuse.

03/03/24 16:58:35 31ZW0601_087




87

Fuel Filter Inspection andReplacement


CONNECTOR FUEL HOSE

Water or sediment accumulated inthe filter can cause loss of power orhard starting. To prevent enginemalfunction, inspect the filter andreplace when necessary.

Remove the engine cover anddisconnect the fuel hose connectorfrom the outboard motor.

The fuel filter is located under theengine cover between the fuelcoupling and the fuel pump.

1.

03/03/24 16:58:44 31ZW0601_088

88


FUEL FILTER FUEL FILTER

SPRING RETAINR

FUEL HOSES

FUEL HOSE CLIPS ARROW (fuel flow direction)

2.

3.

4. 5.

6.

Pull the spring retainer toward you,and raise the fuel filter.

Check the fuel filter for wateraccumulation or sediment. If nowater or sediment are found,reinstall the fuel filter properly.

Remove the fuel filter.Before removing the fuel filter, toprevent fuel leakage, place fuelhose clamps on the fuel hoses atthe each side of the fuel filter.

Install the new fuel filter so thearrow on the fuel filter pointstoward the fuel pump.

Fuel flow will be reduced if thefuel filter is installed backward.

Connect the fuel hoses to the fuelfilter securely with the hose clips.Remove the fuel hose clamps usedto close the fuel hoses.

03/03/24 16:58:57 31ZW0601_089

89

Portable Fuel Tank and FilterCleaning(optional equipment)


TANK FILTER JOINT(Fuel Connector)

FILTER

FUEL HOSE

Fuel Tank Filter

Fuel Tank

Empty the portable fuel tank into anapproved gasoline container. Use afunnel to avoid spilling fuel. Rinsethe fuel tank with nonflammablesolvent to remove any accumulatedsediment.

Unscrew the fuel hose connectorby turning it counterclockwise,then remove the fuel hoseconnector and fuel filter from thetank.

Clean the filter in nonflammablesolvent. Inspect the fuel tank filterand the connector O-ring. Replacethem if damaged.

Reinstall the filter and hoseconnector in the fuel tank. Tightenthe hose connector securely.

3.

7.

1.

2.

Securely connect the fuel hoseconnector to the outboard motor(refer to page ).

8. Prime the engine using the primerbulb (refer to page ). Check forfuel leaks.Repair any fuel leaks if necessary.

If loss of power or hard starting arefound to be caused by excessivewater or sediment accumulation inthe fuel filter, inspect the fuel tank.

Clean the fuel tank and tank filter ifnecessary. It may be necessary todrain the fuel tank completely andrefill with fresh gasoline.

38

44

03/03/24 16:59:08 31ZW0601_090

90

Anode Replacement


ANODE(each side)

ANODE(stern bracket)

Painting or coating the anodes willdef eat their purpose and will lead torust and corrosion damage to theoutboard motor. The anodes must beexposed to the water in order toprotect the outboard motor.

The anodes are located on each sideof the gearcase. They are made of asacrificial material that helps toprotect the outboard motor fromcorrosion.

Replace the anodes when they havebeen reduced to about half theiroriginal size, or if they are crumbling.

03/03/24 16:59:15 31ZW0601_091

91

Propeller Replacement


PROPELLER

COTTER PIN

THRUST WASHER

PLAIN WASHER

CASTLE NUT

Removal Installation

Install the thrust washer with thegrooved side toward the gear case.

Use a genuine Honda cotter pinand bend the pin ends as shown.

Before replacing the propeller,remove the clip from the engine stopswitch to prevent any possibility ofthe engine being started while youare working with the propeller.

The propeller blades may have sharpedges, so wear heavy gloves toprotect your hands.

Remove the cotter pin, unscrew thecastle nut, remove the washer, thenremove the propeller and thrustwasher.

Install the propeller in the reverseorder of removal.

1.

03/03/24 16:59:25 31ZW0601_092

92

STORAGE PREPARATION

Cleaning and Flushing

STORAGE

FLUSH PORT CAP

Cleaning

Flushing With the HondaGarden Hose Adapter (optionalequipment)

Do not run the motor when f lushingthe motor with a garden hose or themotor may be damaged.

Proper storage preparation isessential for keeping your outboardmotor troublefree and looking good.The following steps will help to keeprust and corrosion from impairingyour outboard motor’s function andappearance, and will make the engineeasier to start when you use theoutboard motor again.

Thoroughly clean and flush theoutboard motor with fresh water afteroperation in dirty water or salt water.

Touch up any damaged paint, andcoat areas that may rust with HondaCorrosion Inhibitor, or equivalent.Lubricate controls with a siliconespray lubricant.

Remove the flush port cap.

Wash the outside of the outboardmotor with clean, fresh water, andflush the cooling system as follows.

For safety, remove the emergencystop switch clip so the engine cannotbe started while you are standing nearthe propeller.

1.

03/03/24 16:59:36 31ZW0601_093

93

STORAGE

FLUSHINGCONNECTOR

GARDEN HOSE ADAPTER(optional equipment)

EXHAUST PORT

Turn on the fresh water supply andflush the outboard motor for atleast 10 minutes.

After flushing, remove the gardenhose adapter, and install the flushport cap.

Attach a garden hose from a freshwater faucet to the garden hoseadapter.

Screw the garden hose adapter intothe flushing connector.

4.

5.

2. 3.

03/03/24 16:59:48 31ZW0601_094




94

Fuel

STORAGE

Distributor’s Limited Warranty

Gasoline will oxidize and deterioratein storage. Old gasoline will causehard starting, and it leaves gumdeposits that clog the fuel system. Ifthe gasoline in your fuel tank andcarburetor deteriorates during storage,you may need to have the carburetorand other fuel system componentsserviced or replaced.

With the outboard motor in avertical position, place anapproved gasoline container belowthe fuel drain outlet, and use afunnel to avoid spilling fuel.

The length of time that gasoline canbe left in your fuel tank andcarburetor without causing functionalproblems will vary with such factorsas gasoline blend, your storagetemperatures, and whether the fueltank is partially or completely filled.The air in a partially filled fuel tankpromotes fuel deterioration. Verywarm storage temperatures acceleratefuel deterioration. Fuel deteriorationproblems may occur within a fewmonths, or even less if the gasolinewas not fresh when you filled thefuel tank.

Thedoes not cover fuel system damageor engine performance problemsresulting from neglected storagepreparation.

You can avoid fuel deteriorationproblems by draining the fuel tankand carburetors.

Disconnect the fuel hose from theoutboard motor.

1.

2.

03/03/24 16:59:59 31ZW0601_095

－

＃＃

＃

＃

＃＃

＃

＃

＃

＃

95

Engine Oil

STORAGE

1 CARBURETORDRAIN SCREW




DRAINHOSE

Change the engine oil and the oilfilter (p. ).

Remove the spark plugs (p. ),and remove the clip from theemergency stop switch.

Pour a tablespoon (5 10 cm ) ofclean engine oil into each cylinder.

Using the emergency starter rope(p. ), rotate the flywheel a fewrevolutions to distribute the oil inthe cylinders.

Reinstall the spark plugs (p. ).

Repeat this procedure to drain 2and 1 carburetors.

After all four carburetors aredrained, reinstall the drain tube on

4 carburetor.

Drain the fuel tank into anapproved gasoline container, or ifyou need to store fuel in the fueltank, you can extend fuel storagelife by filling the fuel tank withfresh gasoline and adding a fuelstabilizer that is formulated forthat purpose.

If using the portable fuel tank(optional equipment), firmly closethe fuel tank vent knob.Loosen the drain screw on 4

carburetor, allow the carburetor todrain completery, then tighten thedrain screw securely.

Remove the drain tube from 4carburetor, install it on 3carburetor, and drain thatcarburetor in the same manner.

1.

2.

3.

4.

5.

4.

5.

6.

7.

3.

76

83

57

84

3

03/03/24 17:00:12 31ZW0601_096

96

HOISTING THE OUTBOARDMOTOR

STORAGE

LLOOCCKK



FRONT

REAR

FREE

FREE

LLOOCCKK

CLIPSBOLTSBOLTS

TIMING BELT COVER

If the outboard motor is to beremoved from the boat for storage,the lifting eye (contact yourauthorized Honda Marine dealer topurchase) must be installed in theflywheel to attach a hoist hook.

Unlock and remove the enginecover.

Remove the timing belt cover byunscrewing the four cover boltsand unlatching the three clips.

2.

1.

03/03/24 17:00:22 31ZW0601_097

97

STORAGE

HOISTHOOK

LIFTING EYESTARTERPULLEYLIFTING

EYE

The outboard motor could f all f romthe hoist if the lif ting eye is notsecurely installed. Be sure the lif tingeye is securely installed bef orehoisting the outboard motor.

Install the lifting eye in the centerof the starter pulley, and tighten itsecurely.

Attach the hoist hook to the liftingeye.

Disconnect the outboard motorfrom the boat, hoist the outboardmotor, and move it to the storagearea.

After the outboard motor is placedin storage and disconnected fromthe hoist, remove the lifting eye,and install the timing belt coverand engine cover.

3.

4.

5.

6.

03/03/24 17:00:34 31ZW0601_098

98

STORAGE PRECAUTIONS

REMOVAL FROM STORAGE

STORAGE

OUTBOARD MOTOR STAND

PROTECTOR

BEFOREOPERATION

Select a well-ventilated storage area.If possible, avoid storage areas withhigh humidity.

If storing a container of gasoline,such as the portable fuel tank(optional equipment), store it awayfrom any appliance that operates witha flame, such as a furnace, waterheater, or clothes dryer. Also avoidany area with a spark producingelectric motor, or where power toolsare operated.

If the outboard motor will beremoved from the boat for storage,we recommend storing it verticallyby mounting it on a stand.

Position the outboard motor with itscarburetor side down, and cushion itwith protective packing material.

Cover the outboard motor to keep outdust. Do not use sheet plastic as adust cover. A nonporous cover willtrap moisture, promoting rust andcorrosion.

Check your outboard motor asdescribed in the

chapter of this manual.

If the cylinders were coated with oilduring storage preparation, theengine may smoke briefly at startup.This is normal.

If it is necessary to store the outboardmotor horizontally, drain thecarburetor (p. ), and drain theengine oil (p. ), before removingthe outboard motor from the boat.

7694

03/03/24 17:00:51 31ZW0601_099

99

WITH OUTBOARD MOTORINSTALLED ON BOAT

WITH OUTBOARD MOTORREMOVED FROM BOAT



All Types

TRANSPORTING

MOTOR SUPPORT BAR(commercially available)

STEERING FRICTION ADJUSTER

When trailering a boat with theoutboard motor attached, leave theengine in the normal running position,if possible.

Tighten the steering friction adjusterto prevent the outboard motor frommoving while trailering the boat.

Use a motor support bar to preventthe outboard motor from movingwhile trailering the boat. Refer to themanufacturer’s instructions for usinga motor support bar.

Secure the outboard motor in eitherthe vertical or horizontal positionshown on p. .

The lifting eye (contact yourauthorized Honda Marine dealer topurchase) must be installed to attacha hoist hook for moving the outboardmotor on and off the transportvehicle. Refer to p. for hoistinginstructions.

If there is insufficient road clearancein the normal running position, thentilt the outboard motor and use amotor support bar. Refer to themanufacturer’s instructions for usinga motor support bar.

98

96

03/03/24 17:01:04 31ZW0601_100

100

TAKING CARE OF UNEXPECTED PROBLEMS

Recharge battery.Battery discharged.

Check battery.

Check fuses.

Use emergency startingprocedure (p. ), then takeoutboard motor to an authorizedHonda Marine dealer, or refer tothe shop manual.

Battery connections loose orcorroded.

Fuse(s) burnt out.

Starter malfunction, switchmalfunction, or electrical problemin the starting circuit.

Clean and tighten batteryconnections.

Replace or repair faultycomponents as necessary.

ELECTRIC STARTER WILLNOT OPERATE

Possible Cause Correction

Replace fuse(s) (p. ).

1.

2.

3.40

106

03/03/24 17:01:16 31ZW0601_101

－

101


CorrectionPossible CauseENGINE WILL NOT START

Check emergency stop switchclip.

Check control positions.

Clip not inserted in stop switch.

Gearshift lever or control lever notin neutral position.

Choke OPEN (tiller-handle type).

Throttle grip not in STARTposition (tiller-handle type).

Shift to neutral (p. and).

Pull choke knob to CLOSEDposition, unless engine is warm (p.

).

Turn throttle grip to STARTposition (p. ).

Raise choke and fast idle lever,unless engine is warm (p. ).

Hold choke switch in the ONposition, unless engine is warm (p.

).

Move control lever to fast idleposition, unless engine is warm (p.

and ).

Insert clip in stop switch.

Choke and fast idle lever notraised (side-mount type).

Choke switch OFF (panel-mountand top-mount types).

Control lever not open at least 3050% (panel-mount and top-

mount types).

1.

2. 19, 23, 2629

18

45

22

31

2825

03/03/24 17:01:30 31ZW0601_102

102


CorrectionPossible CauseENGINE WILL NOT START(continued)

Check fuel. Out of fuel.

Fuel hose not primed.

Fuel pump filter or fuel tank filterclogged.

Bad fuel; boat stored withouttreating or draining gasoline, orrefueled with bad gasoline.

Spark plugs faulty, fouled orimproperly gapped.

Spark plugs wet with fuel (floodedengine).

Carburetor malfunction, fuel pumpfailure, ignition malfunction, stuckvalves, etc.

Refuel (p. ).

Squeeze priming bulb (p. ).

Replace fuel filters (p. ).


Open fuel tank vent (p. ).

Take outboard motor to anauthorized Honda Marine dealer,or refer to the shop manual.

Remove and inspect spark plugs. Clean, gap or replace spark plugs(p. ).

Dry and reinstall spark plugs. Startengine with choke and throttle open.

Drain fuel tank and carburetors (p.). Refill with fresh gasoline (p.).

Fuel vent closed (portable fueltank optional equipment).

3.

4.

5.

85

38

44

87

9485

83

03/03/24 17:01:47 31ZW0601_103

103


CorrectionPossible CauseHARD STARTING OR STALLSAFTER STARTING

Check control positions. Choke OPEN (tiller-handle type). Pull choke knob to CLOSEDposition, unless engine is warm (p.

).

Turn throttle grip to START (p.).

Throttle grip not in STARTposition (tiller-handle type).

Raise choke and fast idle lever,unless engine is warm (p. ).

Hold choke switch in the ONposition, unless engine is warm (p.

).

Move control lever to fast idleposition, unless engine is warm (p.

and ).

Choke and fast idle lever notraised (side-mount type).

Choke switch OFF (panel-mountand top-mount types).

Control lever not in fast idleposition (panel-mount and top-mount types).

1.

45

18

31

2825

22

03/03/24 17:01:58 31ZW0601_104

104


HARD STARTING OR STALLSAFTER STARTING

(continued)Possible Cause Correction

Check fuel. Fuel vent closed (portable fueltank).

Fuel hose not primed.Fuel pump filter or fuel tankclogged.

Bad fuel; boat stored withouttreating or draining gasoline, orrefueled with bad fuel.

Open fuel tank vent (p. ).

Squeeze priming bulb (p. ).Replace fuel filters (p. ).

Drain fuel tank and carburetors (p.). Refill with fresh gasoline (p.).

Remove and inspect spark plugs. Spark plugs faulty, fouled orimproperly gapped.

Clean, gap or replace spark plugs(p. ).


Carburetor malfunction, fuel pumpfailure, ignition malfunction, etc.


2.

3.

4.

38

4487

9485

83

03/03/24 17:02:11 31ZW0601_105

105


ENGINE OVERHEATS

Check water intake screens.


Possible Cause

Water intake screens clogged.

Faulty thermostat or water pump.

Correction

Clean water intake screens.


2.

1.

03/03/24 17:02:20 31ZW0601_106

30 A15 A

106

BATTERY WILL NOTCHARGE AND ELECTRICSTARTER WILL NOTOPERATE

Fuse Replacement


FUSE COVERMAIN FUSE

30A FUSE

SPARE30A FUSE

SUB FUSEFUSE COVERSPARE

15A FUSE

15A FUSE

Never use a f use with a ratinggreater than specif ied. Seriousdamage to the electrical systemcould result.

Before further operation, try todetermine and correct the electricalproblem that caused the fuse toburn out. An uncorrected electricalproblem may cause the fuse toburn out again.

Reinstall the fuse covers and theengine cover.

The battery-charging circuit and theelectric starter relay circuit areprotected by the 30-ampere mainfuse. If the main fuse burns out, theengine will not charge the battery,and the electric starter will notoperate. The engine can be startedusing the emergency starter rope.

With the engine stopped, removethe engine cover.

Remove the fuse covers.

Remove and inspect the fuses. If afuse is burnt out, install areplacement fuse of the specifiedrating. The outboard motor issupplied with spare fuses in thefuse holders.

MAIN FUSE:SUB FUSE:

The ignition switch is protected bythe 15-ampere sub fuse. If the subfuse burns out, the engine will notstart or run, and the power trim/tiltswitch will not operate.

1.

2.

3.

4.

03/03/24 17:02:39 31ZW0601_107

107

OIL PRESSURE INDICATORLIGHT GOES OFF ANDENGINE SPEED IS LIMITED




(GREEN)

(GREEN)

(GREEN)

Low oil pressure may be the result ofa low engine oil level, or there maybe a problem with the enginelubrication system.

If the throttle is closed suddenly afterfull throttle operation, engine speedmay drop below the specified idlerpm, and that could activate theengine protection systemmomentarily.

If low oil pressure activates theengine protection system, stop theengine, check the engine oil level(p. ), and add oil if needed.

With the engine oil at therecommended level, restart theengine. If the lubrication system isOK, the green indicator light shouldcome on within 30 seconds, and theengine will respond normally tothrottle grip or control leveroperation.

If the engine protection systemremains activated after 30 seconds,return to the nearest boat landing,and have the outboard motorinspected by an authorized Hondamarine dealer.

Remote-control LRT and XRT typesare equipped with a buzzer thatsounds when the green indicator lightgoes off.

If oil pressure becomes low, thegreen indicator light will go off, andthe engine protection system willlimit engine speed. If you are atcruising speed, engine speed willdecrease automatically.

76

03/03/24 17:02:52 31ZW0601_108

108

OVERHEATING INDICATORLIGHT COMES ON ANDENGINE SPEED IS LIMITED




COOLING SYSTEM INDICATOR

(RED)

(RED)

(RED)

Engine overheating may be the resultof clogged water intake screens, orthere may be a problem with thecooling system thermostat or waterpump.

If the engine is stopped after runningat full throttle, and then restartedsoon afterward, that could activatethe engine protection systemmomentarily.

If overheating activates the engineprotection system, idle the engine inneutral, and check the cooling systemindicator.

Remote-control types are equippedwith a buzzer that sounds when thered indicator light comes on.

If the engine overheats, the redindicator light will come on, and theengine protection system will limitengine speed. If you are at cruisingspeed, engine speed will decreaseautomatically.

03/03/24 17:03:05 31ZW0601_109

－

109

SUBMERGED MOTOR


EMERGENCY STARTER ROPE

Drain the carburetors as describedon p. .

Remove the engine cover, andrinse the outboard motor withfresh water to remove salt water,sand, mud, etc.

If there is a Honda marine dearshipnearby, take the motor to the dealerimmediately. If you are far from adealership, proceed as follows:

A submerged outboard motor mustbe serviced immediately after it isrecovered from the water in order tominimize corrosion.

If the engine was running when itsubmerged, there may bemechanical damage, such as bentconnecting rods. If the enginebinds when cranked, do notattempt to run the engine until ithas been repaired.

If water is flowing from the coolingsystem indicator, continue idling for30 seconds. If the cooling system isOK, the red indicator light should gooff within 30 seconds, and the enginewill respond normally to throttle gripor control lever operation.

If there is no water flowing from thecooling system indicator, stop theengine, and tilt the outboard motor toinspect the water intake screens. Ifclogged, clean the water intakescreens, return the outboard motor tothe running position, restart theengine, and check the cooling systemindicator again.

If there is still no water flowing fromthe cooling system indicator, or if theengine protection system remainsactivated after 30 seconds, return tothe nearest boat landing, and have theoutboard motor inspected by anauthorized Honda marine dealer.

Remove the spark plugs (p. ),and remove the clip from theemergency stop switch. Pull theemergency starter rope, rotate theflywheel a few revolutions tocompletely expel any water fromthe cylinders.Change the engine oil and oil filter

as described on p. . Ifthere was water in the enginecrankcase, or if the used engine oilshowed signs of watercontamination, then a secondengine oil change should beperformed after running the enginefor half an hour.

1.

2.

3.

4.

94

76

83

78

03/03/24 17:03:21 31ZW0601_110

110


When cranking the engine withan open ignition circuit (sparkplugs removed f rom the ignitioncircuit), remove the clip f romthe emergency or engine stopswitch to prevent possibledamage to the ignition system.

Attempt to start the engine.

If the engine fails to start, removethe spark plugs, clean and drythem, then reinstall the spark plugsand attempt to start the engineagain.

As soon as possible, take theoutboard motor to an authorizedHonda Marine dealer forinspection and service.

If the engine starts, and nomechanical damage is evident,continue to run the engine for ahalf hour or longer. Be sure thewater level is at least two inchesabove the antiventilation plate toavoid overheating and water pumpdamage.

Pour a teaspoon of engine oil intoeach spark plug hole, then pull theemergency starter rope severaltimes to lubricate the inside of thecylinders.

Reinstall the spark plugs, and putthe emergency stop switch clipinto the switch.

5.

6.

7.

8.

03/03/24 17:03:32 31ZW0601_111

111

TECHNICAL INFORMATION

Serial Number Locations

TECHNICAL AND CONSUMER INFORMATION

ENGINE SERIAL NUMBER

LEFT STERN BRACKET

PRODUCT IDENTIFICATIONNUMBER

Record the product identificationnumber and engine serial number inthe space provided on this page. Youwill need these numbers whenordering parts, and when makingtechnical or warranty inquiries(p. ).

The engine serial number isstamped on the cylinder block inthe front of the engine.

Product identification number: Engine serial number:

The product identification number isstamped on a plate attached to theleft stern bracket.

120

03/03/24 17:03:41 31ZW0601_112

－12V 70AH

112

Carburetor Modification forHigh Altitude Operation

Battery

Minimum Requirements


When the carburetors have beenmodif ied f or high altitude operation,the air-f uel mixture will be too leanf or low altitude use. Operation ataltitudes below 5,000 f eet (1,500meters) with modif ied carburetorsmay cause the engine to overheatand result in serious engine damage.For use at low altitudes, have anauthorized Honda Marine dealerreturn the carburetors to originalf actory specif ications.

At high altitude, the standardcarburetor air-fuel mixture will betoo rich. Performance will decrease,and fuel consumption will increase.A very rich mixture will also foul thespark plugs and cause hard starting.

High altitude performance can beimproved by specific modificationsto the carburetors. If you alwaysoperate your outboard motor ataltitudes above 5,000 feet (1,500meters), have an authorized Hondamarine dealer perform this carburetormodification.

Even with carburetor modification,engine horsepower will decreaseabout 3.5% for each 1,000-foot (300-meter) increase in altitude. The effectof altitude on horsepower will begreater than this if no carburetormodification is made.

For complete information, refer tothe battery manufacturer’sinstructions.

03/03/24 17:03:50 31ZW0601_113

113

Oxygenated Fuels

ETHANOL:

MTBE:

METHANOL:


Some conventional gasolines arebeing blended with alcohol or anether compound. These gasolines arecollectively referred to as oxygenatedfuels. To meet clean air standards,some areas of the United States andCanada use oxygenated fuels to helpreduce emissions.

If you use an oxygenated fuel, besure it is unleaded and meets theminimum octane rating requirement.

Before using an oxygenated fuel, tryto confirm the fuel’s contents. Somestates/provinces require thisinformation to be posted on the pump.

The following are the EPA-approvedpercentages of oxygenates:

ethyl or grain alcohol;10% by volume.

You may use gasoline containing upto 10% ethanol by volume. Gasolinecontaining ethanol may be marketedunder the name ‘‘Gasohol’’.

Methyl Tertiary Butyl Ether;15% by volume.

You may use gasoline containing upto 15% MTBE by volume.

methyl or woodalcohol; 5% by volume.

You may use gasoline containing upto 5% methanol by volume, as longas it also contains cosolvents andcorrosion inhibitors to protect thefuel system. Gasoline containingmore than 5% methanol by volumemay cause starting and/orperformance problems. It may also

damage metal, rubber, and plasticparts of your fuel system.

If you notice any undesirableoperating symptoms, try anotherservice station, or switch to anotherbrand of gasoline.

Fuel system damage or performanceproblems resulting from the use of anoxygenated fuel containing morethan the percentages of oxygenatesmentioned above are not coveredunder warranty.

03/03/24 17:04:01 31ZW0601_114

114

Emission Control SystemInformation


Source of Emissions

Tampering and AlteringThe U.S. and Calif ornia CleanAir Acts

The combustion process producescarbon monoxide, oxides of nitrogen,and hydrocarbons. Control ofhydrocarbons and oxides of nitrogenis very important because, undercertain conditions, they react to formphotochemical smog when subjectedto sunlight. Carbon monoxide doesnot react in the same way, but it istoxic.

Honda utilizes lean carburetorsettings and other systems to reducethe emissions of carbon monoxide,oxides of nitrogen, and hydrocarbons.

Tampering with or altering theemission control system may increaseemissions beyond the legal limit.Among those acts that constitutetampering are:

Removal or alteration of any partof the intake, fuel, or exhaustsystems.

Alterations that would cause theengine to operate outside its designparameters.

EPA and California regulationsrequire all manufacturers to furnishwritten instructions describing theoperation and maintenance ofemission control systems.

The following instructions andprocedures must be followed in orderto keep the emissions from yourHonda engine within the emissionstandards.

03/03/24 17:04:12 31ZW0601_115

－

115


Maintenance

Replacement PartsProblems That May Af f ectEmissions

A manufacturer of an aftermarketpart assumes the responsibility thatthe part will not adversely affectemission performance. Themanufacturer or rebuilder of the partmust certify that use of the part willnot result in a failure of the engine tocomply with emission regulations.

If you are aware of any of thefollowing symptoms, have yourengine inspected and repaired byyour servicing dealer.

Hard starting or stalling afterstarting.

Rough idle.

Misfiring or backfiring under load.

Afterburning (backfiring).

Black exhaust smoke or high fuelconsumption.

Follow the maintenance schedule onp. . Remember that thisschedule is based on the assumptionthat your machine will be used for itsdesigned purpose. Sustained high-load operation, or use in unusualconditions, will require morefrequent service.

The emission control systems onyour Honda engine were designed,built, and certified to conform withEPA and California emissionregulations. We recommend the useof genuine Honda parts wheneveryou have maintenance done. Theseoriginal-design replacement parts aremanufactured to the same standardsas the original parts, so you can beconfident of their performance. Theuse of replacement parts that are notof the original design and qualitymay impair the effectiveness of youremission control system.

71 72

03/03/24 17:04:24 31ZW0601_116

116

Star Label

The Symbol for Cleaner Marine Engines:

Cleaner Air and Water -

Better Fuel Economy -

Longer Emission Warranty -


The Star Label means Cleaner Marine Engine

A Star label was applied to thisoutboard motor in accordance withthe requirements of the CaliforniaAir Resources Board.

for healthier lifestyle and environment.

burns up to 30 - 40 percent less gas and oil thanconventional carbureted two-stroke engines, saving money and resources.

protects consumer for worry free operation.

This engine has been certified as a:

03/03/24 17:04:36 31ZW0601_117

117

One StarLowEmission

Two StarsVery LowEmission

Three StarsUltra LowEmission

Four StarsSuper UltraLow Emission


The one-star label identifies engines that meet the Air Resources Board’sPersonal Watercraft and Outboard marine engine 2001 exhaust emissionstandards. Engines meeting these standards have 75% lower emissions thanconventional carbureted two-stroke engines. These engines are equivalentto the U.S.EPA’s 2006 standards for marine engines.

The two-star label identifies engines that meet the Air Resources Board’sPersonal Watercraft and Outboard marine engine 2004 exhaust emissionstandards. Engines meeting these standards have 20% lower emissions thanOne Star-Low Emission engines.

The three-star label identifies engines that meet the Air Resources Board’sPersonal Watercraft and Outboard marine engine 2008 exhaust emissionstandards or the Sterndrive and inboard marine engine 2003-2008 exhaustemission standards. Engines meeting these standards have 65% loweremissions than One Star-Low Emission engines.

The four-star label identifies engines that meet the Air Resources Board’sSterndrive and Inboard marine engine 2009 exhaust emission standards.Personal Watercraft and Outboard marine engines may also comply withthese standards. Engines meeting these standards have 90% loweremissions than One Star-Low Emission engines.

Cleaner Watercraft - Get the Facts1-800-END-SMOG

www.arb.ca.gov

03/03/24 17:04:46 31ZW0601_118

－

－－

－

±

±±

－－

BF75ABBAL

LHT35.8 in

(910 mm)23.2 in

(590 mm)62.6 in (1,590 mm)

395 lbs(179 kg)

26.1 in(664 mm)

21.1 in (537 mm)

LRT XRT29.9 in (760 mm)

18.9 in (480 mm)

395 lbs(179 kg)

384 lbs(174 kg)

55.9 kW (75 Hp)5,000 6,000 rpm

4-stroke OHC, in-line, 4-cylinder97.0 cu-in (1,590 cm )

0.024 0.028 in (0.60 0.70 mm)Electric starter

C.D.I.Trochoid pump pressure lubrication

API standard (SG, SH) SAE10W-30

API standard (GL-4/5) SAE 90outboard motor gear oil

4.2 US qt (4.0 )

67.7 in(1,720 mm)

1.00 US qt (0.95 )

ULTRA · LOW EMISSION12V 16A

Water cooling with thermostatThru-hub

DR7EA (NGK)X22ESR-U (DENSO)

Diaphragm typeAutomotive unleaded gasoline (86 pump

octane or higher)Forward-Neutral-Reverse

(dog type)30° right and left

5 stages (8°, 12°, 16°, 20°, 24°)

See page 83

See shopmanual

See shopmanual

950 50 rpm

0.20 0.02 mm0.28 0.02 mm

No other adjustment is needed

0.024 0.028 in(0.60 0.70 mm)

Gear case:

Engine:

Engine:

Gear case:

Exhaust:Intake:

without oil filter change

118

Specifications


Tune Up

MODELDescription CodeTypeOverall length

Oil capacity

Overall width

Overall height

Weight

Transom height

Rated powerFull throttle rangeEngine typeDisplacementSpark plug gapStarter systemIgnition systemLubrication systemSpecified oil

CARB star labelD.C. outputCooling systemExhaust systemSpark plugs

Fuel pumpFuel

Gear change

Steering angleTransom angle

Spark plug gap

Idle speed

Valve clearance(cold)Other specifications

Honda outboards are power rated in accordance with NMMA procedures and using the ICOMIA standard 28/23.

03/03/24 17:05:25 31ZW0601_119

－

－－

－

－－±

±±

BF90ABBBL

LHT LRT XRT35.8 in

(910 mm)29.9 in (760 mm)

23.2 in(590 mm)

18.9 in (480 mm)

62.6 in (1,590 mm)

21.1 in (537 mm)

67.7 in(1,720 mm)

26.1 in(664 mm)

395 lbs(179 kg)

384 lbs(174 kg)

395 lbs(179 kg)

67.1 kW (90 Hp)5,000 6,000 rpm

4-stroke OHC, in-line, 4-cylinder97.0 cu-in (1,590 cm )

0.024 0.028 in (0.60 0.70 mm)Electric starter

C.D.I.Trochoid pump pressure lubrication

API standard (SG, SH) SAE10W-30

API standard (GL-4/5) SAE 90outboard motor gear oil

4.2 US qt (4.0 )

1.00 US qt (0.95 )

ULTRA · LOW EMISSION12V 16A

Water cooling with thermostatThru-hub

DR7EA (NGK)X22ESR-U (DENSO)

Diaphragm typeAutomotive unleaded gasoline (86 pump

octane or higher)Forward-Neutral-Reverse

(dog type)30° right and left

5 stages (8°, 12°, 16°, 20°, 24°)

0.024 0.028 in(0.60 0.70 mm)950 50 rpm

See page 83

See shopmanual

See shopmanual

0.20 0.02 mm0.28 0.02 mm

No other adjustment is needed

Gear case:

Engine:

Engine:

Gear case:

Exhaust:Intake:

without oil filter change

119

Specifications


Tune Up

MODELDescription CodeTypeOverall length

Oil capacity

Overall width

Overall height

Weight

Transom height

Rated powerFull throttle rangeEngine typeDisplacementSpark plug gapStarter systemIgnition systemLubrication systemSpecified oil

CARB star labelD.C. outputCooling systemExhaust systemSpark plugs

Fuel pumpFuel

Gear change

Steering angleTransom angle

Spark plug gap

Idle speed

Valve clearance(cold)Other specifications

Honda outboards are power rated in accordance with NMMA procedures and using the ICOMIA standard 28/23.

03/03/24 17:06:04 31ZW0601_120

120

Warranty Service InformationCONSUMER INFORMATION

Honda Publications

American Honda Motor Co., Inc.


Shop Manual

Parts Catalog

Honda Marine dealership personnelare trained professionals. Theyshould be able to answer anyquestion you may have. If youencounter a problem that your dealerdoes not solve to your satisfaction,please discuss it with the dealership’smanagement. The Service Manageror General Manager can help. Almostall problems are solved in this way.

If you are dissatisfied with thedecision made by the dealership’smanagement, contact the HondaMarine Customer Relations Office.You can write:

Marine DivisionCustomer Relations Office4900 Marconi DriveAlpharetta, Georgia 30005-8847

Or telephone: (770) 497-6400

When you write or call, please giveus this information:

Name of the dealer who sold theoutboard motor to you

Name and address of the dealerwho services your outboard motor

Date of purchase

Your name, address, and telephonenumber

A detailed description of theproblem

This manual covers completemaintenance and overhaul procedures.It is intended to be used by a skilledtechnician.

This manual provides complete,illustrated parts lists.

Model and serial numbers (p. )These publications will give youadditional information formaintaining and repairing youroutboard motor. You may purchasethem from your Honda marine dealer.

111

03/03/24 17:06:21 31ZW0601_121

？

121

INDEX

...........................................................................Anodes . 37..............................................................Replacement . 90

.........ARE YOU READY TO GET UNDER WAY . 39

.........................................................................Battery . 112BATTERY WILL NOT CHARGE AND

ELECTRIC STARTER WILL NOT...........................................................OPERATE . 106

................................................BEFORE OPERATION . 39...........................................BREAK-IN PROCEDURE . 41

Carburetor Modification for High Altitude.................................................................Operation . 112

.....................Choke/Fast Idle Lever (side-mount type) . 22...................................................................Choke Knob . 18

......Choke Switch (panel-mount and top-mount types) . 31.........................................................Common Controls . 30

........COMPONENT AND CONTROL LOCATIONS . 11.................................CONSUMER INFORMATION . 120

..................................................................CONTROLS . 17CONTROLS AND FEATURE IDENTIFICATION

......................................................................CODES . 10..................................CONTROLS AND FEATURES . 10

..............................................Cooling System Indicator . 37....................................................................CRUISING . 64

..................................CUSTOMER INFORMATION . 120

................................EMERGENCY STARTER ROPE . 70.........................................EMERGENCY STARTING . 56

.......................Emission Control System Information . 114Engine

Cover...........................................................Lock Levers . 32

........................................Lock Lever Adjustment . 75...........................Lock Lever Bracket Adjustment . 75

...................REMOVAL AND INSTALLATION . 74Oil

...................................................................Change . 76.........................................................Filter Change . 77..........................................................Level Check . 76

.................................................Recommendations . 79

Fuel.......................Cap Vent Knob (optional equipment) . 38

...........................................HOSE CONNECTIONS . 43......................................Gauge (optional equipment) . 34

..................................................................PRIMING . 44.............................................................Priming Bulb . 38

..........................................RECOMMENDATIONS . 86.................Pump Filter Inspection and Replacement . 87

03/03/24 17:06:25 31ZW0601_122

？

122

INDEX

..............................................................Gearshift Lever . 19Gearshift/Throttle Control Lever

LRT and XRT Types (remote control).................................................Panel-Mount Type . 25..................................................Side-Mount Type . 22...................................................Top-Mount Type . 28

..GEARSHIFTING AND THROTTLE OPERATION . 61...........................................LHT Type (tiller handle) . 61

.....................LRT and XRT Types (remote control) . 62

....................HOISTING THE OUTBOARD MOTOR . 96

..............................................................Ignition Switch . 16...........................................LHT Type (tiller handle) . 17

LRT and XRT Types (remote control).................................................Panel-Mount Type . 24..................................................Side-Mount Type . 20...................................................Top-Mount Type . 27

....................IMPORTANT SAFETY INFORMATION . 7.........................................................................INDEX . 121

...............................................................INDICATORS . 35...........................................................INSTRUMENTS . 34

IS YOUR OUTBOARD MOTOR....................................................READY TO GO . 39

.........................................................Lubrication Points . 80

.........................................MAINTENANCE SAFETY . 69...................................MAINTENANCE SCHEDULE . 71

.....................................................Manual Choke Knob . 31..................................MANUAL RELIFE VALVE . 32, 74

...................MOORING, BEACHING, LAUNCHING . 66

.....................................................Oil Pressue Indicator . 35OIL PRESSURE INDICATOR LIGHT GOES

............OFF AND ENGINE SPEED IS LIMITED . 107................................................................OPERATION . 41

....................................................OTHER FEATURES . 37...................................OUTBOARD MOTOR SAFETY . 7

....................................................Overheating Indicator . 36OVERHEATING INDICATOR LIGHT COMES

..............ON AND ENGINE SPEED IS LIMITED . 108.............................................................Overrev Limiter . 37

........................................................Oxygenated Fuels . 113

03/03/24 17:06:29 31ZW0601_123

123

INDEX

..PORTABLE FUEL TANK (optional equipment) . 38, 43Portable Fuel Tank and Filter Cleaning

.................................................(optional equipment) . 89..........................................................Power Tilt Switch . 26

..........................................Power Trim/Tilt Switch . 19, 30..................................................Propeller Replacement . 91

.................................................................REFUELING . 85...................................REMOVAL FROM STORAGE . 98

........................SAFE OPERATING PRECAUTIONS . 41....................................SAFETY LABEL LOCATIONS . 9

.............................................Serial Number Locations . 111..............SERVICING YOUR OUTBOARD MOTOR . 68

............................SHALLOW WATER OPERATION . 66........................................................Spark Plug Service . 83

..............................................................Specifications . 118....................................................................Star Label . 116

STARTING THE ENGINE...........................................LHT Type (tiller handle) . 44

.....................LRT and XRT Types (remote control) . 47

....................................................................STEERING . 63...........................................LHT Type (tiller handle) . 63

.....................LRT and XRT Types (remote control) . 63..................................................Steering Friction Knob . 20

STOPPING THE ENGINE.....................................Emergency Engine Stopping . 58

...........................................Normal Engine Stopping . 59....................................................................STORAGE . 92

........................................STORAGE PRECAUTIONS . 98

........................................STORAGE PREPARATION . 92..............................................Cleaning and Flushing . 92

.................................................................Engine Oil . 95............................................................................Fuel . 94

............................................SUBMERGED MOTOR . 109Switch Clip and Emergency Stop Switch

...........................................LHT Type (tiller handle) . 17LRT and XRT Types (remote control)

.................................................Panel-Mount Type . 24..................................................Side-Mount Type . 21...................................................Top-Mount Type . 27

.................................Tachometer (optional equipment) . 34

03/03/24 17:06:33 31ZW0601_124

124

INDEX

..TAKING CARE OF UNEXPECTED PROBLEMS . 100TECHNICAL AND CONSUMER

.....................................................INFORMATION . 111.................................TECHNICAL INFORMATION . 111

...............THE IMPORTANCE OF MAINTENANCE . 68..................................................Throttle Friction Knob . 19

..................................................................Throttle Grip . 18Throttle Button

LRT and XRT Types (remote control).................................................Panel-Mount Type . 25

...................................................Top-Mount Type . 28..............................................................Tilt Lock Lever . 32

..................................TOOL KIT (optional equipment) . 70.........................TRANSOM ANGLE ADJUSTMENT . 42

.....................................Transom Angle Adjusting Rod . 33........................................................TRANSPORTING . 99

WITH OUTBOARD MOTOR INSTALLED.............................................................ON BOAT . 99

WITH OUTBOARD MOTOR REMOVED.......................................................FROM BOAT . 99

.................................Trim Meter (optional equipment) . 34........................................................................Trim Tab . 33

........................................TRIM TAB ADJUSTMENT . 73

....................................Warranty Service Information . 120........................WIRING DIAGRAMS . Inside Back Cover

03/03/24 17:06:36 31ZW0601_125

American Honda Motor Company - The engine exhaust from …...Honda BF75A/BF90A outboard motors are designed for use with boats that have a suitable manufacturer’s power recommendation.

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