INFO 2012 08 31 Page 1/3 Without commitment to advise modifications Dear Customer, We would like to inform you about the appropriate procedure how to change a main jet without spilling fuel and refilling of the float chamber for an immediately re-start of the engine. The following procedure can be applied for • 125 Micro MAX • 125 Mini MAX • 125 Junior MAX • 125 MAX, all with the new radiator support (illustration no. 7 or 18) as well as for • 125 MAX DD2. • Loosen the 2 crews of the intake flange and carburettor socket. HOW TO CHANGE A MAIN JET 2012 08 31
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INFO 2012 08 31 Page 1/3 Without commitment to advise modifications
Dear Customer, We would like to inform you about the appropriate procedure how to change a main jet without spilling fuel and refilling of the float chamber for an immediately re-start of the engine. The following procedure can be applied for
• 125 Micro MAX • 125 Mini MAX • 125 Junior MAX • 125 MAX, all with the new radiator
support (illustration no. 7 or 18) as well as for
• 125 MAX DD2.
• Loosen the 2 crews of the intake flange and carburettor socket.
HOW TO CHANGE A MAIN JET
2012 08 31
INFO 2012 08 31 Page 2/3 Without commitment to advise modifications
• Connect the syringe (60 ml, ROTAX part no. 581 385) with the left hole of the venting tube.
• Turn the carburettor towards the seat in
horizontal position.
• In case a big seat is mounted, it might be
necessary to remove the carburettor cap with the carburettor slide to be able to turn the carburettor in horizontal position.
• Pull on the syringe and suck the fuel of the float chamber into the syringe.
INFO 2012 08 31 Page 3/3 Without commitment to advise modifications
• Remove the carburettor plug screw, change the main jet and fit the carburettor plug screw again.
• Turn the carburettor in upright position and tighten the two crews of the intake flange and carburettor socket.
• If the carburettor cap and carburettor slide have been removed, they have to be mounted again.
• Re-fill the float chamber by pressing the fuel
in the syringe into the float chamber.
• Ignition ON/OFF switch in position ON and press the start button – the engine will start immediately as the float chamber is already filled with fuel.
Best regards, BRP-Powertrain
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