1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 31 32 33 34 35 36 37 38 189 39 40 41 42 43 44 45 188 PARTS BREAKDOWN BBX7600 BBX7600CA rev 11_12/28/2012 Page 1 of 17 PB_12-2012_rev 11
PARTS BREAKDOWN EM4251
1 of 16 06/10/2010
1
2
34
56
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
31
3233
3435
36
37
38
189
39
40
41
42
43
44
45
188
PARTS BREAKDOWNBBX7600
BBX7600CArev 11_12/28/2012
Page 1 of 17 PB_12-2012_rev 11
PARTS BREAKDOWN EM4251
1 of 16 06/10/2010
190
191
192
Implemented Jan 2011
Insulation labels
Slits are filled with1mm thickness of the Insulation labels.
Their labels must be attached to the reverse of Engine cover.
Exhaust air outlet is modified.
Slits are eliminated.
Prior to Jan 2011
3030
24
23
25
26
2728
29
NOTE: Fig No’s 190, 191, 192not included with Fig No. 30.
PARTS BREAKDOWNBBX7600
BBX7600CArev 11_12/28/2012
Page 2 of 17 PB_12-2012_rev 11
PARTS BREAKDOWN EM4251
1 of 16 06/10/2010
46
47
4849
50
5152
53
54
55
56
57
58
59
PARTS BREAKDOWNBBX7600
BBX7600CArev 11_12/28/2012
Page 3 of 17 PB_12-2012_rev 11
PARTS BREAKDOWN EM4251
1 of 16 06/10/2010
60
61
62
63
64
65
66
6768
69
70
71
72
7374
75
76
77
78
79
818082
83
PARTS BREAKDOWNBBX7600
BBX7600CArev 11_12/28/2012
Page 4 of 17 PB_12-2012_rev 11
PARTS BREAKDOWN EM4251
1 of 16 06/10/2010
84
85
86
87
88
89
90
93
91
92
PARTS BREAKDOWNBBX7600
BBX7600CArev 11_12/28/2012
Page 5 of 17 PB_12-2012_rev 11
PARTS BREAKDOWN EM4251
1 of 16 06/10/2010
9495
96
97
98
99
100
101
102
187
103
104
The groove is modi�ed.
modi�edchanged
added
The groove is modi�ed.94
9495
95
96 96
19897 97
Old New (Implemented March 2012)
Ref bulletin Y06029
The following parts have changed. (Interchangeable as a set)
Reference Service Note SN2012_13 on how to install.
PARTS BREAKDOWNBBX7600
BBX7600CArev 11_12/28/2012
Page 6 of 17 PB_12-2012_rev 11
PARTS BREAKDOWN EM4251
1 of 16 06/10/2010
105
106
107
108
109
110
111
112
113
114
115
116
117
PARTS BREAKDOWNBBX7600
BBX7600CArev 11_12/28/2012
Page 7 of 17 PB_12-2012_rev 11
PARTS BREAKDOWN EM4251
1 of 16 06/10/2010
118
119
120
121
123
122
124
125
126
127
128
129
130
131
132
133 134
135
136
137
138
139
140 141
142
143
144
PARTS BREAKDOWNBBX7600
BBX7600CArev 11_12/28/2012
Page 8 of 17 PB_12-2012_rev 11
PARTS BREAKDOWN EM4251
1 of 16 06/10/2010
145
146
147
148
149
150
151152
153
154
155
156
157
158
159
160
161162
163
164165
166
167
PARTS BREAKDOWNBBX7600
BBX7600CArev 11_12/28/2012
Page 9 of 17 PB_12-2012_rev 11
PARTS BREAKDOWN EM4251
1 of 16 06/10/2010
168
169
170
171
PARTS BREAKDOWNBBX7600
BBX7600CArev 11_12/28/2012
Page 10 of 17 PB_12-2012_rev 11
PARTS BREAKDOWN EM4251
1 of 16 06/10/2010
172
173
174
175
176
177
178
179
PARTS BREAKDOWNBBX7600
BBX7600CArev 11_12/28/2012
Page 11 of 17 PB_12-2012_rev 11
PARTS BREAKDOWN EM4251
1 of 16 06/10/2010
180
181
182
183
184
185
186
PARTS BREAKDOWNBBX7600
BBX7600CArev 11_12/28/2012
Page 12 of 17 PB_12-2012_rev 11
PARTS BREAKDOWN EM4251
1 of 16 06/10/2010
Tech Bulletins Fig. No. Part No. Description Q'ty Unit Notes1 667-10070-01 VOLUTE CASE 1 ASS'Y, BBX7600 12 667-10050-10 SQUARE NUT, BBX7600 23 014-00592-20 SCREW ASSY M5X65, BBX7600 24 667-10020-00 DAMPER 1 COMP., BBX7600 15 020-00599-10 WASHER M5, BBX7600 16 004-31054-00 P.H. SCREW M5X65 (W.SW), BBX7600 17 015-00597-30 TAPPING SCREW 5X25, BBX7600 38 667-10010-00 INLET COVER COMP., BBX7600 19 265878-0 TAPPING SCREW BIT 5X16 9
9 015-00598-00 TAPING SCREW M5X18, BBX7600 99 015-00597-60 T. SCREW 5X16, BHX2500 9
10 667-10030-00 DAMPER 2 COMPL., BBX7600 211 011-90696-90 S.H. BOLT M6X40, BBX7600 412 240138-1 IMPELLER, BBX7600 1
12 667-10040-00 IMPELLER COMPL., BBX7600 113 056-33799-90 WIRE BAND, BBX7600 114 667-15004-00 ELBOW, BBX7600 115 024-09899-90 O RING, BBX7600 116 266649-8 S.H. BOLT M6X30, BBX7600 6
16 011-90696-80 S.H. BOLT M6X30, BBX7600 617 667-15002-00 BASE 1, BBX7600 118 667-15003-00 BASE 2, BBX7600 119 667-10080-01 VOLUTE CASE 2 ASS'Y, BBX7600 120 667-10050-10 SQUARE NUT, BBX7600 221 017-00599-50 NUT M5, BBX7600 222 073-62899-80 CAUTION LABEL, BHX2500 1
Y05801 23 015-00498-20 TAPPING SCREW 4X6, BBX7600 1Y05801 24 667-65007-00 MUFFLER GUARD, BBX7600 1
25 073-63098-70 LABEL, BBX7600 126 450964-2 PLUG COVER, BHX2500 1
26 665-65001-00 PLUG COVER, BHX2500 127 265878-0 TAPPING SCREW BIT 5X16 9
27 015-00598-00 TAPING SCREW M5X18, BBX7600 927 015-00597-60 T. SCREW 5X16, BHX2500 4
28 667-65001-00 OIL GUARD, BBX7600 129 898454-1 CHOKE LABEL, BBX7600 1
29 641-95043-00 CHOKE LABEL, BBX7600 130 141521-4 ENGINE COVER 1 Requires 190, 191, 192
Y05801 30 667-65008-04 ENGINE COVER, BBX7600 1 Requires 190, 191, 19230 667-65008-03 ENGINE COVER, BBX7600 1 Prior to Jan 2011
31 412119-7 TUBE GUARD 20-160, BBX7600 131 085-11598-61 TUBE, BBX7600 1
32 168396-6 BREATHER, BBX7600 132 531-65033-00 BREATHER, BBX7600 1
33 125472-9 FUEL TANK CAP ASS'Y 133 592-60170-00 FUEL TANK CAP ASS'Y, BHX2500 1
34 085-13399-60 TUBE, BBX7600 135 345920-4 HOSE CLAMP 1
35 056-10599-90 HOSE CLAMP, EM4251 136 580-65029-00 FILTER, BBX7600 137 667-30060-00 FUEL TANK ASS'Y, BBX7600CA 1 BBX7600CA37 667-30020-01 FUEL TANK CPL., BBX7600 1 BBX760038 667-25003-00 ROCK RIVET, BBX7600 439 667-20020-00 GUARD COMPL, BBX7600 140 004-37061-20 SCREW ASSY M6X12, BBX7600 241 002-37060-00 FLANGE NUT, RBL500 2
Products with multiple versions are listed in subsiding order with the newest version on top not indented.Corresponding bulletins are attached. Select bulletin name or attachment to view.
PARTS BREAKDOWNBBX7600
BBX7600CArev 11_12/28/2012
Page 13 of 17 PB_12-2012_rev 11
PARTS BREAKDOWN EM4251
1 of 16 06/10/2010
Tech Bulletins Fig. No. Part No. Description Q'ty Unit Notes
Products with multiple versions are listed in subsiding order with the newest version on top not indented.Corresponding bulletins are attached. Select bulletin name or attachment to view.
42 667-20010-00 FRAME COMPL., BBX7600 143 014-00592-10 SCREW ASSY M5X16, BBX7600 244 667-25002-00 ROCK RIVET, BBX7600 6
Y05614 45 667-20030-00 CUSHION COMPLETE 145 667-25000-00 CUSHION, BBX7600 1
46 667-50010-01 CONTROL LEVER ASS'Y, BBX7600 147 667-50010-10 S.H. BOLT M6X20, BBX7600 148 003-22060-00 WAVE WASHER, RBL500 149 003-11060-00 WASHER, RBL500 150 662-55007-01 THROTTLE LEVER 2, RBL500 151 017-00699-60 NUT, BBX7600 152 662-55006-01 THROTTLE LEVER 1, RBL500 153 662-55009-01 TORSION SPRING, RBL500 154 667-50010-30 SCREW M5X25, BBX7600 155 667-50040-00 SWITCH COMPL., BBX7600 156 667-50010-20 TAPPING SCREW 4X16, BBX7600 557 017-00599-50 NUT M5, BBX7600 158 667-55000-01 CABLE TUBE, BBX7600 159 063-01398-20 CONTROL CABLE, BBX7600 160 911253-5 P.H. SCREW M5X30 2
60 011-90595-70 S.H. BOLT M5X30 W/SW, BBX7600 260 004-36053-00 SCREW ASS'Y, RST250 2
61 597-15007-00 ROCKER COVER, BBX7600 162 597-15009-00 ROCKER COVER GASKET, BBX7600 163 597-10030-01 CYLINDER HEAD COMPL., BBX7600 164 442167-2 CYLINDER HEAD GASKET 1
64 597-15005-02 CYLINDER HEAD GASKET, BBX7600 165 065-01099-50 SPARK PLUG CMR6A, EM4251 166 011-90696-70 S.H. BOLT M6X35, BBX7600 567 597-10070-01 CYLINDER BLOCK SET, BBX7600 1
67 597-10070-00 CYLINDER BLOCK SET, BBX7600 168 424201-0 CHECK VALVE 2
68 592-15018-00 CHECK VALVE, EM4251 269 011-90699-30 H.S.H. BOLT M6X30, BBX7600 670 597-15008-00 CAMGEAR COVER GASKET, BBX7600 171 318725-5 CAMGEAR COVER, BBX7600 1
71 597-15006-00 CAMGEAR COVER, BBX7600 172 922223-9 H.S.H. BOLT M5X16 WITH WR 4
72 011-90595-31 SOCKET HEAD BOLT M5X16 472 004-36051-60 SCREW ASS'Y M5X16(W,SW),EM4251 4
73 667-60050-00 OIL CAP ASSY, BBX7600 174 021-32299-80 GASKET, BBX7600 175 346083-9 LEAD VALVE, EM2650LH
75 592-15010-00 LEAD VALVE, EM4251 176 593-15013-00 RETAINER PLATE, BBX7600 177 011-90499-80 S.H. BOLT M4X10, EM4251 178 597-65001-00 OIL CASE GASKET, BBX7600 179 597-65000-00 OIL CASE, BBX7600 180 003-70080-00 ALUMINUM GASKET, BBX7600 181 001-66081-20 BOLT M8X12, BBX7600 1
Y05470 82 011-90593-90 SOCKET HEAD BOLTM5X25, BBX7600 582 014-00596-80 SCREW M5X25, RBC230 5
83 085-11099-60 TUBE, BBX7600 184 597-20030-00 PISTON RING SET, BBX7600 1
Y05830 85 318726-3 PISTON, BBX7600 1 Implemented Feb 2011
PARTS BREAKDOWNBBX7600
BBX7600CArev 11_12/28/2012
Page 14 of 17 PB_12-2012_rev 11
PARTS BREAKDOWN EM4251
1 of 16 06/10/2010
Tech Bulletins Fig. No. Part No. Description Q'ty Unit Notes
Products with multiple versions are listed in subsiding order with the newest version on top not indented.Corresponding bulletins are attached. Select bulletin name or attachment to view.
85 597-25000-02 PISTON, BBX7600 185 597-25000-01 PISTON, BBX7600 1
86 213599-8 OIL SEAL (S), BBX7600 186 044-01799-10 OIL SEAL, BBX7600 1
87 580-25007-02 PISTON PIN, BBX7600 187 580-25007-01 PISTON PIN, BBX7600 1
88 233995-4 CLIP, RBL500 288 056-51199-90 CLIP, RBL500 2
89 061-01299-40 NEEDLE ROLLER BEARING, BBX7600 190 032-30499-50 WOODRUFF KEY, BBX7600 191 267448-1 CLIP, BBX7600 1
91 597-25008-00 CLIP, BBX7600 192 213598-0 OIL SEAL (L), BBX7600 1
92 044-02098-90 OIL SEAL (L), BBX7600 193 597-20020-02 CRANKSHAFT COMP., BBX7600 1
93 597-20020-01 CRANKSHAFT COMP., BBX7600 1Y06029 94 331964-0 INTAKE VALVE, BBX7600 1 As a set with 94, 95, 96, 97, 198
94 597-35001-00 INTAKE VALVE, BBX7600 1Y06029 95 331965-8 EXHAUST VALVE, BBX7600 1 As a set with 94, 95, 96, 97, 198
95 597-35002-02 EXHAUST VALVE, BBX7600 195 597-35002-01 EXHAUST VALVE, BBX7600 1
Y06029 96 234212-5 SPRING, BBX7600 2 As a set with 94, 95, 96, 97, 19896 597-35003-01 VALVE SPRING, BBX7600 2
Y06029 97 331966-6 RETAINER, BBX7600 2 As a set with 94, 95, 96, 97, 19897 597-35004-00 SPRING RETAINER, BBX7600 2
98 597-35005-01 ROCKER ARM SHAFT, BBX7600 198 597-35005-00 SHAFT, BBX7600 1
Y05830 99 126005-3 ROCKER ARM ASS'Y, BBX7600 2 Implemented Feb 201199 597-30040-00 ROCKER ARM ASSY, BBX7600 2
Y05830 100 256526-2 PUSH ROD, BBX7600 2 Implemented Feb 2011100 597-35008-00 PUSH ROD, BBX7600 2
101 597-35007-00 SHAFT, BBX7600 1102 597-35006-01 CAM LIFTER, BBX7600 1103 597-30020-01 CAM GEAR ASSY, BBX7600 1104 256200-2 PIN 5 1
104 593-35001-00 ROCKER SHAFT, BHX2500 1105 597-50010-00 STARTER REWIND, BBX7600 1106 597-55000-00 PULLEY, BBX7600 1107 266585-8 TAPPING SCREW 5X12, EM2650LH 1
107 519-50020-60 SET SCREW, RBC201 1108 424516-5 COLLAR, BBX7600 1
108 597-50020-40 COLLAR, BBX7600 1109 326200-7 SWING ARM, BBX7600 2
109 597-50020-50 SWING ARM, BBX7600 2110 597-50020-30 FRICTION SPRING, BBX7600 1111 424360-0 STOPPER, BBX7600 1
111 531-50010-30 STOPPER, BBX7600 1112 530-50021-10 STARTER KNOB, RBC260 1
112 531-50010-20 STARTER KNOB, RBC311, T1 1113 597-50021-10 STARTER ROPE, BBX7600 1114 597-50020-20 REEL, BBX7600 1115 232262-4 SPIRAL SPRING, BBX7600 1
115 525-50400-30 SPIRAL SPRING, BBX7600 1116 014-00593-60 SCREW & WASHER ASS'Y 3117 667-95025-00 MODEL LABEL, BBX7600CA 1
PARTS BREAKDOWNBBX7600
BBX7600CArev 11_12/28/2012
Page 15 of 17 PB_12-2012_rev 11
PARTS BREAKDOWN EM4251
1 of 16 06/10/2010
Tech Bulletins Fig. No. Part No. Description Q'ty Unit Notes
Products with multiple versions are listed in subsiding order with the newest version on top not indented.Corresponding bulletins are attached. Select bulletin name or attachment to view.
118 597-35012-00 CARBURETOR GASKET, BBX7600 1Y05507 119 011-90596-40 S.H.BOLT M5X25, BBX7600 2
119 014-00596-80 SCREW M5X25, RBC230 2120 597-30090-01 INSULATOR COMPL., BBX7600 1
Y05830 121 162333-2 INSULATOR GASKET, BBX7600 1 Implemented Feb 2011121 597-35011-00 INSULATOR GASKET, BBX7600 1
122 922218-2 H.S.H. BOLT M5X14 WITH WR, EM2650LH 1122 011-90594-90 SOCKET HEAD BOLT M5X14, RBC255 1122 004-36051-40 SCREW M5X14, RBC251 1
123 597-60010-00 CARBURETOR, BBX7600 1124 597-60010-10 BODY PUMP ASSY., BBX7600 1125 352010-6 INLET SCREEN, EM2650LH 1
125 501-60040-10 INLET SCREEN, RBC230 1126 442154-1 METERING DIAPHRAGM GASKET, EM265 1
126 523-60460-40 METERING DIAPHRAGM GASKET,RBC26 1127 168574-8 METERING DIAPHRAGM, EM4251 1
127 592-60080-10 METERING DIAPHRAGM, EM4251 1128 140438-8 AIR PURGE BODY, EM2650LH 1
128 523-60461-40 AIR PURGE BODY ASS'Y, EM4251 1129 424314-7 PRIMER PUMP, EM2650LH 1
129 524-60011-50 PRIMER PUMP, RBC230 1130 346270-0 PRIMER PUMP COVER, EM2650LH 1
130 523-60460-50 PRIMER PUMP COVER, EM4251 1131 266582-4 TAPPING SCREW 3X24, EM2650LH 4
131 523-60460-10 PUMP COVER SCREW, RBC230 4132 266795-7 ADJUST SCREW 1
132 521-60080-10 CABLE ADJUST SCREW, RBL500 1133 264065-8 CABLE ADJUST NUT, RBC230 1
133 531-60054-50 CABLE ADJUST NUT, RBC230 1134 325922-6 SWIVEL, EM2650LH 1
134 523-60180-40 SWIVEL, RBC230 1135 413140-9 WASHER, EM2650LH 1
135 542-60050-30 WASHER, EM4251 1136 266704-6 PAN HEAD SCREW M3X10, BBX7600 2
136 524-60012-40 THROTTLE COLLAR SCREW, RBC230 2137 523-60520-20 BRACKET CABLE, MS3200 1138 257964-1 STOP RING E-3, EM2650LH 1
138 531-60051-20 RING, RBC230 1139 424444-4 PACKING RING, BBX7600 1
139 523-60180-20 RING PACKING, RBC230 1140 234183-6 CONICAL COMPRESSION SPRING 5-9, E 1
140 592-60020-20 PUMP SPRING, EM4251 1141 213538-8 O RING 2, EM2650LH 1
141 524-60010-10 O RING, RBC230 1142 597-60010-20 JET #60, BBX7600 1143 442155-9 PUMP GASKET, EM2650LH 1
143 592-60020-40 PUMP GASKET, EM4251 1144 168575-6 PUMP DIAPHRAGM, EM2650LH 1
144 524-60010-40 PUMP DIAPHRAGM, RBC230 1145 667-65012-00 KNOB BOLT, BBX7600 2146 667-60020-02 AIR CLEANER COVER, BBX7600 1147 667-65002-01 AIR CLEANER ELEMENT, BBX7600 1148 004-36051-60 SCREW ASS'Y M5X16(W,SW),EM4251 4149 667-60030-02 AIR CLEANER CASE ASSY, BBX7600 1150 667-65013-00 SEPARATOR PLATE, BBX7600 1151 424315-5 CHECK VALVE, EM4251 1
PARTS BREAKDOWNBBX7600
BBX7600CArev 11_12/28/2012
Page 16 of 17 PB_12-2012_rev 11
PARTS BREAKDOWN EM4251
1 of 16 06/10/2010
Tech Bulletins Fig. No. Part No. Description Q'ty Unit Notes
Products with multiple versions are listed in subsiding order with the newest version on top not indented.Corresponding bulletins are attached. Select bulletin name or attachment to view.
151 531-65007-01 CHECK VALVE, EM4251 1152 424316-3 CHECK VALVE, EM2650LH 1
152 592-35024-00 CHECK VALVE (1), EM4251 1153 667-65005-00 CHECK VALVE PLATE, BBX7600 1154 085-11399-20 TUBE, BBX7600 1155 056-10799-90 HOSE CLAMP, BBX7600 1156 422096-5 TUBE, BBX7600 1
156 085-10299-30 TUBE, BBX7600 1157 452952-5 HOSE JOINT, BBX7600 1
157 597-35022-00 JOINT PIPE, BBX7600 1158 085-11999-60 TUBE, BBX7600 2159 597-30060-00 INTAKE CASE ASSY, BBX7600 1160 597-35018-00 CHOKE LEVER, BBX7600 1161 597-35017-00 CHOKE PLATE, BBX7600 1162 597-30060-10 TAPPING SCREW 4X12, BBX7600 2163 597-35019-00 INTAKE PLATE, BBX7600 1164 014-00594-70 SCREW M5X62, RBC256 2
164 004-36056-50 SCREW M5X62, RBC251 2165 056-16799-90 HOSE CLAMP, BBX7600 1166 056-14399-90 HOSE CLAMP, BBX7600 1167 667-65004-00 AIR CLEANER DUCT, BBX7600 1168 597-35013-01 MUFFLER GASKET, BBX7600 1169 597-30010-02 EXHAUST MUFFLER, BBX7600 1170 020-00698-90 WASHER, BBX7600 3171 011-90696-50 S.H. BOLT M6X70, BBX7600 3172 424105-6 PLUG CAP, EM4251 1
172 592-75001-00 PLUG CAP, EM4251 1173 324891-8 PLUG CAP SPRING, EM2650LH 1
173 065-40099-31 PLUG CAP SPRING,RBC221 1174 011-90499-70 SOCKET HEAD BOLT, BBX7600 2175 638784-6 WIRE, RBC201 1
175 616-55002-01 WIRE, RBC201 1176 638710-5 WIRE 2, BHX2500 1
176 592-70110-00 WIRE 2, BHX2500 1177 597-70010-10 IGNITION COIL, BBX7600 1178 597-70010-20 FLYWHEEL COMP., BBX7600 1179 264054-3 FLANGE NUT M10, BBX7600 1
179 002-37100-00 FLANGE NUT M10, BBX7600 1180 667-90020-00 SWIVEL PIPE COMP., BBX7600 1181 056-17699-90 HOSE CLAMP, BBX7600 1182 667-95000-00 FLEXIBLE PIPE, BBX7600 1183 056-10099-90 HOSE CLAMP, BBX7600 1184 667-95018-01 STRAIGHT PIPE, BBX7600 1185 667-95019-00 END PIPE, BBX7600 1186 667-90010-00 BAND COMPL., BBX7600 2187 597-35023-00 CAM LIFTER (EXHAUST SIDE), BBX7600 1
Y05795 188 667-25004-00 FAN COVER, BBX7600 1Y05795 189 667-25003-00 ROCK RIVET, BBX7600 2
190 443174-8 INSULATION LABEL A 1 Not included with Fig No 30Y05801 190 667-65015-00 INSULATION LABEL 1 Not included with Fig No 30
191 443175-6 INSULATION LABEL B 1 Not included with Fig No 30Y05801 191 667-65016-00 INSULATION LABEL 1 Not included with Fig No 30
192 443176-4 INSULATION LABEL C 1 Not included with Fig No 30Y05801 192 667-65017-00 INSULATION LABEL 1 Not included with Fig No 30Y06029 198 331967-4 COTTER, BBX7600 4 As a set with 94, 95, 96, 97, 198
PARTS BREAKDOWNBBX7600
BBX7600CArev 11_12/28/2012
Page 17 of 17 PB_12-2012_rev 11
ECHNICAL INFORMATION
For Models
Country
T Y05468August 2009
Change of Screw Ass'y M5x16 (W,SW)
BBX7600, FLH7500, PB7600.4
All countries
Subject
Description
Cylinder block set
Camgear covergasket
Camgear cover
Changed
Screw Ass'y M5x16 with Flat washer and Spring washer has been replaced by Socket head bolt M5x16 with Flat washer and Spring washer.See illustration below.
Current part New part NoteQ'tyItem No.
4
I/CQ'ty
Interchangeability(I/C)
4072 YesScrew Ass'y M5x16(W,SW)
0043605160
Socket Head Bolt M5x16(W,SW)
0119059531
Already implemented since May 2009 production
Implementation
ECHNICAL INFORMATION
For Models
Country
T Y05470August 2009
Change of M5x25 Screw and Screw Ass'y
BBX7600, PB7600.4
All countries
Subject
Description
M5x25 Screw with flat washer and spring washer for Oil case
M5x25 Socket head bolt with flat washer and spring washer for Oil case
Pan head screws have been replaced by Socket head bolts to ensure the complete fastening. See illustration below.
Current part New part Note
The current partsremain available.
Q'tyItem No.
5
I/CQ'ty
Interchangeability(I/C)
5082 YesScrew M5x25
0140059680
Socket Head Bolt M5x25
0119059390
22060 YesScrew Ass'y
0043605300
Socket Head Bolt M5x30W/SW
0119059570
1
2 Screw ass'y with flat washer and spring washerfor Rocker cover
M5x30 Socket head bolt with flat washer and spring washer for Rocker cover
Already implemented since July 2009 production
Implementation
ECHNICAL INFORMATION
For Models
Country
T Y05353March 2009
Change of Cam Lifter on Gas Exit Side
BBX7600, PB7600.4, FLH7500
All countries
Subject
Description
Cam Lifter
Cam lifter on exhaust side has been changed to enhance the engine durability.See illustration below for the detail.
Current part New part NoteQ'tyItem No. I/CQ'ty
Interchangeability(I/C)
597350060112102 No
Interchangeableas a set
Cam Lifter
5973500601
1187Cam Lifter
5973502300
Current New
Exhaust sideCam lifter: 5973502300
Both exhaust and intake sidesCam lifters : 5973500601
7mm5mm
Intake side (The cam lifter remains 5973500601.)
1) Rib is added as a distinction of the new from the current. 2) The contact area is enlarged.
Already implemented since November 2008 production
Implementation
ECHNICAL INFORMATION
For Models
Country
Description
T Y06029June 2012
(Page 1 of 6)Change of Specifications
BBX7600, FLH7500, PB7600.4, PB7601.4CA
A
BBX7600: Australia, Brazil, Canada, Chile, China, Italy, Korea, Mexico, Netherlands, New Zealand, Panama, Switzerland, Taiwan. UK, VietnamFLH7500: Australia, ItalyPB7600.4: Austria, France, Germany, Italy, Netherlands, Spain, SwedenPB7601.4CA: USA
Subject
The following parts have been changed / added to standardize the specifications to those of new model such as Mist blower. Refer to the numbers shown in the list of Pages 4, 5 and 6.
The groove is modified.
modified changed
added
The groove is modified.
modified
Oil return passage is added here.
Around Valve
B Around Cylinder head
6
7
34 34
5 5
211
Oil return passage was here.
Change of Outer diameter of Rocker arm shaft
Change of Muffler
Guide pipe (Three positions)
Burring
Sleeve (Three positions)
9
10 24
Addition of Exhaust port spacer
8 6Rocker arm assembly is treated as the component of .However, the current parts remain available.
ø50-0.010 ø50
-0.002
Oil return passage is eliminated.
ø5+0.003-0.009
ø5-0.003-0.015
Hole for inserting Rockershaft is changed fromto
Burring portion is eliminated.
Y06029(Page 2 of 6)
B Around Cylinder head (cont.)
Change of Bolt for securing Muffler
Change of Tube (one of Two tubes is changed.)
Addition of Tubes to protect the original tubes
Change of Case 2 volute assy
Washer M6x70 M6x18
13-1 13-2
15 1614
1817
1211
12 11111111
Overall length: 190mm
220mm tube110mm tube
170mm tube
Rib iseliminated.
Overall length: 240mm
Original tubes
Three tubes are added on the original tubes.
Y06029(Page 3 of 6)
C The others
Change of Crank pin of Crank shaft complete (material / Carbrizing hardness)19
Change of Piston pin (material / Carbrizing hardness)20
Change of the crank case portion of Cylinder block set21
Change of Rocker cover22
Change of part number of Tube
Rib is added.
23
Change of Socket head bolt for securing Insulater (Surface treatment / Adhesive to put on the thread)25
Change of part number of Tube
ThreeBond 1344Black wash
SCM415HRC60~64
SCM420HHRC62 or more
ThreeBond 2466Chromate treatment
26
SCM415HRC60~64
SCM420HHRC62 or more
Pilot hole to insert Pipe joint was here. Pilot hole to insert
Pipe joint is changed here.
Eliminated
Y06029(Page 4 of 6)
Interchangeability(I/C)
198
097
094
Current part New part Note
Interchangable as a set with
Treat the new Shaft rocker arm and Rocker arm assemblyas the components of .
Q'tyI/CQ'tyItem No.
2Retainer331966-6
4*331967-4
*Two Cotters are used for intake side and exhaust side. (Four cotters in total)
Spring retainer
Cotter
Intake valveIntake valve
Exhaust valveExhaust valve
Compression spring 11Valve spring
Cylinder head complCylinder head compl
59735004002 No
No
No
1331964-05973500100
1
095
096
1331965-85973500202 1
2234212-55973500301 2
063
098
159710030025971003001
1
Shaft5973500500
1
No
No
1Shaft rocker arm5973500501
199 1Exhaust port spacer331937-3
169 1Muffler exhaust5973001003
099 2Rocker arm assembly126005-3
Rocker arm assembly
Exhaust muffler
126005-3 2 Yes
Yes
1
3 No
No
No
171 3Socket head bolt M6x18266771-1
Socket head bolt M6x700119069650
1Tube 3-190
0851199960 0851199960Tube 3-190
170
1
2
3
4
5
6
7
9
10
8
11
12Washer0200069890
3
2158
5973001002
1Tube 10-110412123-6
14 200
202 1Tube 10-220412124-4
019 1Case 2 volute assy6671006002
201 2Tube 10-170412127-8
Rocker cover
Case 2 volute assy1
1019 1Case 2 volute assy6671008002
Volute case 2 assy6671008001
1Piston pin
5802500701 5802500702Piston pin
093
16
17
15
18
20
19Crankshaft compl5972002001
Crankshaft compl5972002002
1 1
1
1
1
087
6671006001
1Cylinder block set
5971007000Cylinder block set
597100700121 067
1Rocker cover
5971500700 597150070122 061
Yes
Yes
13-1
6
, or9 11 12 1413-1 13-26
16 17 18 10 2415
Interchangable as a set with
, or9 11 12 1413-1 13-26
16 17 18 10 2415
Interchangable as a set with
, or9 11 12 1413-1 13-26
16 17 18 10 2415
Interchangable as a set with
, or9 11 12 1413-1 13-26
16 17 18 10 2415
Interchangable as a set with9 1110 12
1413-1
13-26
16 17 1815
Interchangeability mark; The arrow means that the new part can be substituted for the current.
For intake side( side)
Interchangeableas a set with
3
1 2 3 5
1
For exhaust side( side)
Interchangeableas a set with
4
2 4 5
Yes
Yes
Y06029(Page 5 of 6)
Interchangeability(I/C)
Current part New part Note
Interchangable as a set with
Q'tyI/CQ'tyItem No.
Australia Brazil Canada SwitzerlandChile China UK
169 1Muffler exhaust5973001003
Exhaust muffler1
2
Yes
Yes
No
119 2Socket head bolt M5x25with WR266749-4
Socket head bolt M5x25 The current parts remainavailable.0119059640
1Tube 3-240412122-8
156
24
25
13-2
26Tube0851029930
Tube 3-25422096-5
1 1
203
5973001001
2425
13-226
13-1
212223
181920
151617
12
14
91011
678
345
12
, or9 11 12 1413-1 13-26
16 17 18 10 2415
Interchangable as a set with9 11 12 1413-1 13-26
16 17 18 2415
Interchangeability mark; The arrow means that the new part can be substituted for the current.
Implementation
From November 2011 production
Refer to the applicable parts listed below and next page. BBX7600
Italy Korea Mexico Netherlands Panama Taiwan Vietnam
154 1Tube 3-130412121-0
Tube0851139920
1 Yes23
Y06029(Page 6 of 6)
Austria France Germany Australia
2425
13-226
13-1
212223
181920
151617
12
14
91011
678
345
12
PB7600.4 PB7601.4CA FLH7500Italy Netherlands Spain Sweden ItalyUSA
ECHNICAL INFORMATION
For Models
Country
T Y05507December 2009
Change of M5x25 Socket Head Bolt
BBX7600, FLH7500, PB7600.4
G3501R: countries using Battery bolt completeG3511R, G4101R, G5501R, G5711R, G6101R: Canada, USA
Subject
Description M5x25 Socket head bolt has been replaced by one with adhesive to prevent bolt from loosening.
Current part New part NoteQ'tyItem No. I/CQ'ty
01190596400119059390
Socket Head Bolt M5x252 2119
Interchangeability(I/C)
Socket Head Bolt M5x25
Interchangeability mark; The arrow means that the new part can be substituted for the current.
M5x25 Socket Head Bolt(2pcs.)
Already implemented since July 2009 production
Implementation
ECHNICAL INFORMATION
For Models
Country
T Y05380March 2009
Change of Exhaust Muffler
BBX7600, PB7600.4
All countries
Subject
Description
Exhaust Muffler
Indication on Exhaust muffler has been changed as illustrated below.
Current part New part NoteQ'tyItem No. I/CQ'ty
Interchangeability(I/C)
597300100111169 Yes
Exhaust Muffler
MAKITA5973001002
ROBIN5973001001
5973001002
Current New
Already implemented since August 2007 production
Implementation
ECHNICAL INFORMATION
For Models
Country
T Y05611June 2010
Change of Exhaust Valve
BBX7600, PB7600.4, FLH7500
All countries
Subject
Description
5973500202
For further enhancement in durability of Engine, tufftride process has been done to Exhaust valve.
Current part New part NoteQ'tyItem No. I/CQ'ty
Interchangeability(I/C)
11095 YesExhaust Valve
5973500201
Exhaust Valve
Already implemented since April 2009 production
Implementation
ECHNICAL INFORMATION
For Models
Country
T Y05795February 2011
Addition of Fan cover
BBX7600, FLH7500, PB-7600.4
All countries
Subject
Description Fan cover has been secured with two Rock rivets as drawn below.
Current part New part NoteQ'tyItem No. I/CQ'ty
Interchangeability(I/C)
16672500400
188
Fan cover(6672500400)
Fan cover
26672500300
189Rock rivet
Rock rivet(6672500300)
(Frame complete)
ImplementationFrom December 2010 production
ECHNICAL INFORMATION
For Models
Country
T Y05677September 2010
Change of Piston
BBX7600, FLH7500, GSH8100R, PB7600.4, WFLH7500
All countries
Subject
Description
The durability is increased.
Piston has been modified as illustrated below.
Current part New part NoteQ'tyItem No. I/CQ'ty
Interchangeability(I/C)
15972500002
15972500001Piston Piston
085 Yes
Current New
R3 3.2 R4
SR150
ImplementationFrom September 2010 production
ECHNICAL INFORMATION
For Models
Country
T Y05614June 2010
Change of Cushion
BBX7600, PB7600.4, FLH7500
All countries
Subject
Description
6672003000
Cushion has been changed as illustrated below.The assembling way remains the same.
Current part New part NoteQ'tyItem No. I/CQ'ty
Interchangeability(I/C)
11045 YesCushion Complete
6672500000
Cushion
Already implemented since April 2010 production
Implementation
ECHNICAL INFORMATION
For Models
Country
T Y05301November 2008
Change of M5x25 Screw and M5x14 Screw Ass’y
BBX7600, PB7600.4
All countries
Subject
Description
Screw M5x25
0140059680
Socket Head Bolt M5x25
0119059390
M5x25 Screw has been replaced by M5x25 Socket head screw.M5x14 Screw ass’y has been replaced by M5x14 Socket head bolt (W, SW).
Current part New part NoteQ'tyItem No.
119 22
I/CQ'ty
Interchangeability(I/C)
Screw Ass’y M5x14
0043605140
Socket Head Bolt M5x14(W,SW)
0119059490
122 Yes
Yes
11
119
122
BBX7600: From February 2008 productionPB7600.4: From March 2008 production
Implementation
ECHNICAL INFORMATION
For Models
Country
T Y05830 March 2011
Change of Piston, Push rod, Rocker arm assy and Insulator gasket
FLH7500 BBX7600 PB7600.4
All countries
Subject
Description
1. Modification on Piston design
2. Change of the material of Push rod and additional treatment of gas nitrocarburizing on Push rod surface
3. Addition of Gas nitrocarburizing treatment to the surface of Adjust screw of Rocker arm assy
4. Modification of design and material of Insulator gasket
Piston, Push rod, Rocker arm assy and Insulator gasket have been modified to increase the enginedurability.
Current part New part NoteQ'tyI/CQ'ty
Interchangeability(I/C)
Item No.
2
2
2
2
100
99
Push rod5973500800
Push rod256526-2
Rocker arm assy5973004000
Rocker arm assembly126005-3
1 185 YesPiston
5972500002
Piston
318726-3
1 1121 YesInsulator gasket5973501100
Insulator gasket162333-2
Yes
Yes
Material: SWB; wire steel
Material: SUS (stainless steel)treated by gas nitrocarburizing
Push rod
[Current]
[Current]
[New]
[New]
R5.0
[Current] [New]
Adjust screw
Designchange
Materialchange
ANP sheet;Heat-resistancecarbon resin
Meta-foam; Metal sheet coated by oil-resistance foam-rubber
ImplementationFrom February 2011 production
SERVICE notes 2012-13
Page 1 of 4
Subject Replacing and installing valves on BBX7600 blower
For model BBX7600, BBX7600CA, BBX7600N
Country USA
Description Design change YO6029 was implemented in March 2012. The components of the valve train have been modified to improve the durability of many of the valve train components
UReference repair manuals: Service Manual_ BBX7600, BBX7600CA (pages 43-44) Technical Bulletin YO6029 USpecifications
New or revised components (94, 95, 96, 97 and 198) can be used in any BBX7600 cylinder head. Parts should be installed as a set. Parts needed: UFig.U UPart NumberU UDescriptionU UQtyU 94 331964-0 Intake valve, BBX7600, Type 2 1 95 331965-8 Exhaust valve, BBX7600, Type 2 1 96 234212-5 Spring, BBX7600, Type 2 2 97 331966-6 Retainer, BBX7600, Type 2 2 198 331967-4 Cotter, BBX7600, Type 2 4 UTools SAE 10W-30 oil Magnet Cotter removal and installation special tool (Makita pn 1R389 and 1R005) or special tool see photo #1
UEstimated valve removal or installation time 5 minutes
Cotter Installation end Cotter Removal end
Photo 1
SERVICE notes 2012-13
Page 2 of 4
UValve removal procedure
1. Remove the cylinder head from the top of the cylinder
2. The rocker arms do not have to be removed. In
photo #2 the rocker arms have been removed.
3. Block the valves with 1/8” thick piece of cardboard or metal to prevent the
valves from opening during retainer cotter removal.
4. With removal tool in one hand and magnet in the other, press down on the top of the retainer with tool. See photo #3.
5. Remove the cotter with the magnet. See photo #4.
6. Repeat until all 4 cotters are removed.
7. Remove the springs and valves
UCotter and retainer installation preparation
8. On small piece of paper or business card prepare the 2 cotters as shown
9. Place the retainer on top of the cotters as shown above.
10. Holding paper turn over the cotter and retainer assembly. Remove paper.
11. Repeat with other retainer and cotters.
Photo 4
Photo 3
Photo 2
SERVICE notes 2012-13
Page 3 of 4
U Prepare Cylinder head and valves for installation
12. Coat or wipe down the intake and valve exhaust valve stems with 10-W30 oil. Remove all excess oil.
13. Install the intake and exhaust valves into the cylinder head
14. Block the valves with 1/8” thick piece of cardboard or metal to prevent the
valves from opening during retainer cotter installation.
15. Place the cylinder head on a flat surface.
URetainer and cotter installation
16. Install spring onto each valve.
17. Place a retainer/cotter assembly on top of the exhaust valve. See photo #5.
18. Place the installation tool with counter bore on top of the retainer cotter assembly. See photo #6.
19. Pressing down on the installation tool, guide the valve stem through the hole and cotters into position. See photo #7.
20. The valve stem should extend up through the installation tool as in photo #7.
Photo #7
Photo #6
Photo #5
SERVICE notes 2012-13
Page 4 of 4
21. Remove the installation tool and check to see if cotters are installed correctly as in Photo #8.
22. Repeat for the intake valve. Both intake and exhaust valves should be the same. See photo #9.
Photo #8
Photo #9
Implementation All USA 4-stroke air cooled OPE products. Recommend that any product delivered for maintenance be checked.
ECHNICAL INFORMATION
For Models
Country
Description
T Y05071October 2007
Change of Exhaust Valve
BBX7600, PB7600.4
BBX7600: Canada, Italy, Netherlands, Panama, Switzerland, UKPB7600.4: Austria, France, Germany, Italy, Netherlands, Spain, Sweden,
095
Exhaust valve has been changed to increase durability.See illustration below.
Subject
1
From September 2007 production.
Current part New part NoteQ'tyItem No. I/CQ'ty
Implementation
Interchangeability(I/C)
Exhaust Valve
59735002011
Exhaust Valve
5973500200Yes
ø18.
9+0.
1
ø18.
5+0.
1
ø4
-0.
035
ø4
-0.
050
-0.0
35
-0.0
20
Current New
ECHNICAL INFORMATION
For Models
Country
T Y05509December 2009
Change of 5x16 Tapping Screw
BBX7600, FLH7500, PB7600.4
All countries
Subject
Description
Item No. 0095x16 Tapping screws (9pcs.)
Item No. 009M5x18 Tapping screws (9pcs.)
5x16 Tapping Screw has been replaced by M5x18 Tapping screw to prevent the looseness.
Current part New part NoteQ'tyItem No. I/CQ'ty
Interchangeability mark; The arrow means that the new part can be substituted for the current.
Interchangeability(I/C)
Item No. 0275x16 Tapping screws (4pcs.)
Item No. 027M5x18 Tapping screws (4pcs.)
01500598000150059760
Tapping Screw 5x16 Tapping Screw M5x189 9009
01500598000150059760
Tapping Screw 5x16 Tapping Screw M5x184 4027
Already implemented since November 2009 production
Implementation
ECHNICAL INFORMATION
For Models
Country
T Y05801February 2011
Change of Engine cover, Muffler guard and 4x6 Tapping screw
BBX7600, PB7600.4, FL-H7500, GSH8100R, W-FLH7500
All countries
Subject
Description Engine cover, Muffler guard and 4x6 Tapping screw have been changed as drawn below to comply with the clause of EN15503.
Current part New part NoteQ'tyItem No. I/CQ'ty
16676500804
1 NoBBX7600(Makita blue)PB7600.4(Dolmar orange)FLH7500(red)
Interhcnageableas a set with
Insulation labelGSH8100R (yellow) for• MULTIPOWER • W-FLH7500 for WORMS
0306676500803Engine cover
Engine cover
Engine cover
166765009041 No030 6676500903Engine cover Engine cover
16676500004
1 No0306676500003Engine cover Engine cover
16676501004
1 No6676501003Engine cover Engine cover
Insulation label
Insulation labels
Slits are filled with1mm thickness of the Insulation labels.
Their labels areattached to the reverse of Engine cover.
Insulation label
Insulation label
10246676500700Muffler guard
10230150049820Tapping screw 4x6
16676501500
190
Interchangeability(I/C)
1
1 2 3 4
2
3
4
5
5
6
7
7
8
9
16676501600
1918
16676501700
1929
Interhcnageableas a set withEngine cover
Engine cover
Exhaust air outlet is modified.
Slits are eliminated.
1 2 3 4Muffler guard
64x6 Tapping screw
ImplementationEurope: From January 2011 productionThe others: On or after January 2011 production