Gear Cluster
Ref. |
Part Number |
Description |
Per |
Year |
Model |
1 |
40-0394 |
Dowel -inner cover to crankcase | 2 | 1971-73 | All B50 |
2 |
29-3857 |
Mainshaft bearing | 2 | 1971-73 | All B50 |
3 |
57-3872 |
Pinion – mainshaft top gear (22 teeth) | 1 | 1971-73 | All B50 |
4 |
40-3020 |
Spacer (.093-.094 ) | 1 | 1971-73 | All B50 |
4 |
40-3126 |
Spacer ( .098-.099 ) | AR | 1971-73 | All B50 |
4 |
40-3127 |
Spacer (.103-.104 ) | AR | 1971-73 | All B50 |
5 |
57-3876 |
Pinion -layshaft second gear (21 teeth) | AR | 1971-73 | All B50 |
6 |
40-3019 |
Spacer (.075-.076 ) | 1 | 1971-73 | All B50 |
6 |
40-3119 |
Spacer ( .070-.071 ) | 1 | 1971-73 | All B50 |
6 |
40-3120 |
Spacer (.080-.081 ) | 1 | 1971-73 | All B50 |
7 |
57-2662 |
Pinion -mainshaft third gear (24 teeth) | 1 | 1973 | All B50 |
7 |
57-4665 |
Gear -mainshaft third (24 teeth) | 1 | 1971-73 | B50 MX |
8 |
41-3065 |
Pinion -mainshaft first gear (18 teeth) | 1 | 1971-72 | B50 MX |
8 |
57-2663 |
Pinion- mainshaft first gear (16 teeth) | 1 | 1971-73 | B50 T SS H |
9 |
40-3007 |
Mainshaft bush -push rod | 1 | 1971-73 | All B50 |
10 |
57-4682 |
Mainshaft ( complete with 18T gear) | 1 | 1973 | B50 MX |
10 |
57-4344 |
Mainshaft with bush | 1 | 1971-72 | All B50 |
11 |
40-3258 |
Layshaft shim | 1 | 1971-73 | All B50 |
12 |
40-3262 |
Bush -layshaft first gear | 1 | 1971-73 | All B50 |
13 |
41-3073 |
Pinion -layshaft first gear (25 teeth) | 1 | 1971-73 | B50 MX |
13 |
57-3874 |
Pinion -layshaft first gear (27 teeth) | 1 | 1971-72 | B50 T SS H |
14 |
57-3877 |
Pinion -layshaft third gear (19 teeth) | 1 | 1971-73 | All B50 |
15 |
41-3078 |
Layshaft circlip | 1 | 1971-73 | All B50 |
16 |
41-3070 |
Pinion -layshaft second gear (22 teeth) | 1 | 1971-73 | All B50 |
17 |
41-3068 |
Layshaft with top gear (14 teeth) | 1 | 1971-73 | All B50 |
18 |
41-3072 |
Thrust washer ( .078-.080 ) | AR | 1971-73 | All B50 |
18 |
41-3074 |
Thrust washer ( .083-.085 ) | AR | 1971-73 | All B50 |
19 |
40-3292 |
Bearing, needle roller, layshaft | 1 | 1971-73 | All B50 |
20 |
40-3265 |
Clutch push rod | 1 | 1971-73 | All B50 |
21 |
41-3045 |
Bush – mainshaft top gear | 2 | 1971-73 | All B50 |
22 |
71-1271 |
Shield -gearbox main bearing | 1 | 1971-73 | All B50 |
23 |
41-3054 |
Mainshaft oil seal | 1 | 1971-73 | All B50 |
24 |
70-6026 |
Circlip -mainshaft oil seal | 1 | 1971-73 | All B50 |
25 |
71-2547 |
Dowel -crankcase inner cover | 1 | 1971-73 | All B50 |
Not illustrated |
37-3932 |
Distance piece – front wheel spindle, inner side right bearing | 1971-72 | B50 SS H | |
Not illustrated |
37-1237 |
Grease retainer -left, outer | 1971-73 | B50 T MX | |
Not illustrated |
37-3758 |
Locknut (25/64 x 3/4 x 3/64 ) | 1971 | B50 T MX | |
Not illustrated |
42-5836 |
Pivot pin – front brake cable to lever | 1971-73 | B50 T MX | |
Not illustrated |
60-2632 |
Circlip – grease retainer, right | 1971-73 | B50 T MX | |
Not illustrated |
60-3152 |
Gaiter – front brake cable | 1971 | B50 T MX | |
Not illustrated |
65-5904 |
Brake shoe spring | 1971-72 | B50 T MX |
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