Parts Diagram | ## | Part # | Description | Qty | Notes |
| 0436908 | 0436908 | Cylinder & crankcase assembly. not shown | 1 | |
1 | 0304178 | Dowel pin | 3 | |
2 | 0314616 | Stud, cylinder | 1 | |
3 | 0305070 | Taper pin | 1 | |
4 | 0300343 | Washer, crankcase to cylinder | 8 | |
5 | 0307776 | Screw, lower main bearing | 2 | |
6 | 0131794 | Screw, crankcase to cylinder | 4 | |
7 | 0313538 | Stud, crankcase to cylinder | 2 | |
8 | 0320372 | Lock nut, crankcase to cylinder | 2 | |
9 | 0321164 | Plug | 2 | |
10 | 0435009 | Pulse limiter | 1 | |
12 | 0308751 | Screw, bracket | 2 | |
13 | 0339288 | Cylinder head, 50TTL only | 1 | |
13 | 0339221 | Cylinder head, 25-60-70 | 1 | |
14 | 0336178 | Housing, thermostat | 1 | |
15 | 0313607 | Lubrication fitting | 1 | |
16 | 0327590 | Pin, shift lever to shift rod | 1 | |
17 | 0328693 | Screw, shift detent | 2 | |
18 | 0306049 | Screw | 6 | |
19 | 0330967 | Bushing, shift lever to crankcase | 1 | |
20 | 0322323 | Screw, cylinder head | 14 | |
21 | 0437929 | Spark plug, Champion QL78YC. radio noise suppressor plug | 3 | |
21 | 0387633 | Spark plug, Champion QL77JC4. radio noise suppressor plug optional | 3 | |
21 | 0432424 | Spark plug, Champion QL16V. radio noise suppressor plug optional | 3 | |
21 | 0386941 | Spark plug, Champion L77JC4. optional | 3 | |
22 | 0306049 | Screw, thermostat cover | 4 | |
23 | 0336179 | Spring | 1 | |
24 | 0339207 | Cover, thermostat and valves | 1 | |
25 | 0329223 | Bracket, detent spring | 1 | |
26 | 0317581 | Screw, shift rod lever | 1 | |
27 | 0329830 | Gasket, thermostat cover | 1 | |
28 | 0308728 | Screw, detent bracket mounting | 2 | |
29 | 0329836 | Gasket, cylinder head | 1 | |
30 | 0333962 | Lift bracket | 1 | |
31 | 0329834 | Cover, exhaust manifold | 1 | |
32 | 0328701 | Washer, ground bolt | 2 | |
33 | 0202026 | Washer, shifter lever | 1 | |
34 | 0330913 | Spring, shift detent bracket | 1 | |
35 | 0308743 | Screw, exhaust cover | 14 | |
36 | 0911237 | Hose, indicator | 1 | |
37 | 0436195 | Thermostat assembly | 1 | |
38 | 0330212 | Spring, shift detent bracket | 1 | |
39 | 0312241 | Screw, spring s to bracket | 1 | |
40 | 0203688 | Nut, idle adjustment | 2 | |
41 | 0553142 | Screw, idle adjustment | 2 | |
42 | 0314021 | Bumper, exhaust manifold | 1 | |
43 | 0328740 | Nut, double end bolt | 1 | |
44 | 0329230 | Shift detent | 1 | |
45 | 0121470 | Nut, shift detent to lever | 2 | |
46 | 0308993 | Spring, idle adjustment | 2 | |
47 | 0329562 | Cover, temperature switch | 1 | |
48 | 0326642 | Lever, shift rod | 1 | |
49 | 0315204 | Nut, powerhead stud | 1 | |
50 | 0321886 | Elbow | 1 | |
51 | 0306322 | Screw | 2 | |
52 | 0329229 | Shift lever | 1 | |
53 | 0552906 | Cotter pin, shift lever | 1 | |
54 | 0329833 | Gasket, exhaust manifold | 1 | |
55 | 0302290 | Lock washer, pin to shift lever | 1 | |
56 | 0318951 | Bushing, shift lever to crankcase | 1 | |
57 | 0330151 | Clamp, leads | 2 | |
58 | 0310439 | Clamp, fuel filter | 1 | |
59 | 0330814 | Bracket, idle adjustment | 1 | |
60 | 0334109 | Bolt, double end | 1 | |
61 | 0306012 | Bow washer, shift lever | 1 | |
62 | 0584152 | Temperature switch | 1 | |
63 | 0512947 | Terminal, bullet | 1 | |
64 | 0513185 | Sleeve, bullet terminal | 1 | |
65 | 0512876 | Socket | 1 | |
66 | 0513186 | Sleeve, socket | 1 | |
67 | 0342421 | Spring | 1 | |
68 | 0435957 | Diaphragm & cup | 1 | |
70 | 0336185 | Washer | 1 | |
71 | 0398047 | Powerhead gasket set | 1 | |