Parts Diagram | ## | Part # | Description | Qty | Notes |
| 1 | 0396010 | Cylinder & crankcase assembly | 1 | |
2 | 0304178 | Dowel, bearing | 1 | |
3 | 0300402 | Taper pin | 1 | |
4 | 0318622 | Screw, cylinder to crankcase | 6 | |
5 | 0319627 | Dowel pin. electric start models only | 1 | |
6 | 0329919 | Water cover, cylinder head. early production | 1 | |
7 | 0329920 | Gasket, water cover. early production | 1 | |
8 | 0306409 | Screw, water cover to cylinder head. early production | 9 | |
9 | 0310439 | Clamp, power pack connector | 1 | |
10 | 0328820 | Bypass cover. rope start models only | 1 | |
10 | 0319350 | Bypass cover. electric start models only | 1 | |
11 | 0316245 | Clamp, lead to exhaust cover. rope start models only | 1 | |
12 | 0319332 | Gasket, bypass cover | 1 | |
13 | 0300646 | Screw, bypass cover | 5 | |
14 | 0329917 | Cylinder head. early production | 1 | |
14 | 0396282 | Cylinder head. late production | 1 | |
14 | 0397152 | Cylinder. head & seat, 10. late production | 1 | |
14a | 0331126 | Cylinder. head & seat, 15. late production | 1 | |
15 | 0302863 | Screw, bypass cover. rope start models only | 1 | |
15 | 0308429 | Screw, bypass cover. electric start models only | 1 | |
16 | 0309322 | Clamp, power pack leads | 4 | |
17 | 0308120 | Screw, neutral start switch. electric start models only | 1 | |
18 | 0303916 | Lock washer, lead to switch. electric start models only | 1 | |
19 | 0378065 | Thermostat. early production | 1 | |
19 | 0395919 | Thermostat. late production | 1 | |
20 | 0329319 | Gasket, thermostat. early production | 1 | |
21 | 0330818 | Gasket, cylinder head | 1 | |
22 | 0322323 | Screw, cylinder head. early production | 6 | |
22 | 0319226 | Screw, cylinder. head. late production | 6 | |
23 | 0322404 | Exhaust cover, outer | 1 | |
24 | 0328497 | Exhaust cover, inner | 1 | |
25 | 0318925 | Gasket, exhaust cover | 2 | |
26 | 0331001 | Screw, exhaust cover | 8 | |
27 | 0323655 | Pivot nut, link to shift lever except sel | 1 | |
28 | 0309846 | Clamp, high tension lead to cover | 1 | |
29 | 0315287 | Screw, neutral start bracket. electric start models only | 2 | |
30 | 0310442 | Clamp, starter cable to detent. electric start models only | 2 | |
31 | 0386941 | Spark plug, Champion L77J4 | 2 | |
31 | 0387633 | Spark plug, Champion QL77J4. radio noise suppressor plug | 2 | |
32 | 0123024 | Shift lock stop. sel models only | 1 | |
33 | 0328051 | Spring, thermostat. early production | 1 | |
33 | 0331186 | Spring, thermostat. late production | 1 | |
34 | 0316491 | Screw, exhaust cover | 2 | |
35 | 0319414 | Detent, shift lock | 1 | |
36 | 0909386 | Screw, cylinder to crankcase | 4 | |
37 | 0315287 | Screw, shift lock detent | 2 | |
38 | 0306413 | Washer, stop shift lock lever. sel models only | 2 | |
39 | 0327768 | Screw, lever to crankcase | 1 | |
39 | 0302750 | Screw, lever to stop. sel models only | 2 | |
40 | 0311015 | Bushing, shifter lock. sel models only | 2 | |
41 | 0319127 | Pin, clevis to lock lever. sel models only | 1 | |
42 | 0319066 | Link, shift lever to lock lever. sel models only | 1 | |
42 | 0323656 | Link, shift lever to lock lever except sel | 1 | |
43 | 0305650 | Cotter pin, yoke pin | 1 | |
44 | 0318955 | Clevis, link to bell crank. sel models only | 1 | |
45 | 0300154 | Washer, pin clevis. sel models only | 1 | |
46 | 0305650 | Cotter pin, clevis pin. sel models only | 1 | |
47 | 0306407 | Washer, shift lock assembly | 1 | |
48 | 0322407 | Stop, shift lock. sel models only | 1 | |
49 | 0387257 | Lever and hub assembly, shift lock. sel models only | 1 | |
49 | 0323657 | Shift lever, except sel | 1 | |
50 | 0300154 | Washer, lock out link | 1 | |
51 | 0319415 | Screw, shift lock assembly. sel models only | 1 | |
52 | 0321886 | Elbow, indicator | 1 | |
53 | 0583053 | Bracket and switch assembly, neutral start. electric start models only | 1 | |
54 | 0314492 | Screw. electric start models only | 2 | |
55 | 0319543 | Bracket, neutral start switch. electric start models only | 1 | |
56 | 0395699 | Switch assembly, neutral start. electric start models only | 1 | |
57 | 0583052 | Lead assembly, switch to terminal block. electric start models only | 1 | |
58 | 0204039 | Terminal. electric start models only | 2 | |
59 | 0319601 | Nut, neutral start. electric start models only | 1 | |
60 | 0303916 | Lock washer. electric start models only | 2 | |
61 | 0581288 | Lead assembly, switch to motor | 1 | |
62 | 0204039 | Terminal | 2 | |
63 | 0320890 | Support, detent | 1 | |
64 | 0310620 | Clamp. electric start models only sel models only | 1 | |
65 | 0376349 | Grd, wire, cover to motor cover | 1 | |
66 | 0321887 | Hose, nipple to elbow | 1 | |
67 | 0317755 | Clamp, armature plate leads. late production | 1 | |
68 | 0330151 | Clamp, armature plate leads | 1 | |
69 | 0328744 | Screw, cover. late production | 3 | |
70 | 0331188 | O-ring, cover. late production | 1 | |
71 | 0331189 | Cover, thermostat. late production | 1 | |
72 | 0331241 | Isolator. late production | 1 | |
73 | 0394546 | Powerhead gasket set | 1 | |