Parts Diagram | ## | Part # | Description | Qty | Notes |
| 1 | 0437018 | Cylinder & crankcase assembly, 250 | 1 | |
1 | 0437017 | Cylinder & crankcase assembly, 300 | 1 | |
2 | 0304178 | Pin, dowel bearing | 3 | |
3 | 0326743 | Stud | 2 | |
4 | 0331095 | Pin, taper | 1 | |
5 | 0338653 | Stud, shift lever | 2 | |
6 | 0326891 | Screw, cylinder to crankcase | 9 | |
7 | 0326890 | Screw, cylinder to crankcase | 1 | |
8 | 0320744 | Washer, stud | 2 | |
9 | 0322232 | Washer | 1 | |
10 | 0321598 | Fitting, drain | 10 | |
11 | 0435009 | Pulse limiter | 2 | |
12 | 0436385 | Check valve | 8 | |
13 | 0394892 | Check valve assembly | 1 | |
14 | 0341216 | Hose, valve lower | 1 | |
15 | 0325569 | Tee, crankcase drain | 1 | |
16 | 0330145 | Cotter pin, shift lever | 1 | |
17 | 0315391 | Plug, aspirator | 1 | |
18 | 0313607 | Grease fitting | 1 | |
19 | 0339207 | Cover, thermostat | 2 | |
20 | 0326644 | Lever, shift rod | 1 | |
21 | 0340116 | Gasket, cylinder head | 2 | |
22 | 0340797 | Cylinder head | 2 | |
23 | 0329830 | Gasket, cover | 2 | |
24 | 0336185 | Washer, cover | 2 | |
25 | 0330562 | Screw, thermostat cover | 8 | |
26 | 0339066 | Screw, cylinder head | 52 | |
27 | 0437680 | Spark plug, Champion, QL82YC | 8 | |
27 | 0387633 | Spark plug, Champion, QL77JC4. optional | 8 | |
27 | 0432424 | Spark plug, Champion QL16V. optional | 8 | |
28 | 0585039 | Temperature switch, port | 1 | |
28 | 0585038 | Temperature switch, starboard | 1 | |
29 | 0512947 | Terminal, bullet, port | 1 | |
30 | 0513185 | Sleeve, terminal, port | 1 | |
31 | 0511469 | Terminal pin | 1 | |
32 | 0513357 | Connector | 1 | |
33 | 0329562 | Cover, temperature switch | 1 | |
34 | 0327590 | Pin, shift rod lever | 1 | |
35 | 0336178 | Housing, thermostat | 2 | |
36 | 0306012 | Washer, shift lever | 1 | |
37 | 0336179 | Spring, thermostat | 2 | |
38 | 0336211 | Spring, pressure relief | 2 | |
39 | 0512741 | Retainer, temperature. switch conn | 2 | |
40 | 0320107 | Tie strap | | |
41 | 0310928 | Clamp, timer leads. with out power steering | 1 | |
42 | 0436194 | Check valve | 8 | |
43 | 0319590 | Screw, clamp. with out power steering | 1 | |
44 | 0435957 | Diaphragm & cup | 2 | |
46 | 0436195 | Thermostat assembly | 2 | |
47 | 0122220 | Seal, aspirator | 1 | |
48 | 0317936 | Washer, aspirator | 1 | |
49 | 0326365 | Spring clip, retainer | 2 | |
50 | 0554306 | Screw, cylinder to crankcase | 16 | |
51 | 0328695 | Screw, lever shift rod | 1 | |
52 | 0312708 | Bushing, shift lever | 2 | |
53 | 0302290 | Washer, pin, lever | 1 | |
54 | 0321886 | Elbow, indicator. with out power steering | 1 | |
54 | 0331894 | Elbow, indicator. with power steering | 1 | |
56 | 0202026 | Washer, shift lever | 2 | |
57 | 0513812 | Bracket, slide r | 1 | |
58 | 0320107 | Tie strap | 1 | |
59 | 0329997 | Pin | 1 | |
60 | 0394595 | Shift lever & shaft | 1 | |
61 | 0584754 | Switch assembly | 1 | |
62 | 0510818 | Terminal | 1 | |
63 | 0513356 | Connector, plug | 1 | |
64 | 0581656 | Terminal, socket | 1 | |
68 | 0 | Hose, bearing housing, 25 in. cut to length from 25 ft. 7, 6M roll, 332219 | 1 | |
69 | 0330157 | Clamp, shift assist connector | 1 | |
70 | 0330412 | Gasket, rectifier | 1 | |
71 | 0317893 | Tie strap, switch connectors | 2 | |
72 | 0913435 | Hose, elbow to drain tee. with out power steering | 2 | |
73 | 0913438 | Hose, aspirator to check valve. with out power steering | 1 | |
74 | 0914902 | Aspirator. with out power steering | 1 | |
75 | 0915209 | O-ring, aspirator | 1 | |
76 | 0 | Hose, drain system. cut to length from 25 ft. 7, 6M roll, 335802 | | |
78 | 0327805 | Nut, aspirator | 1 | |
79 | 0333017 | Spring | 1 | |
80 | 0317893 | Tie strap, retainer | 2 | |
81 | 0913439 | Hose, water intake | 1 | |
82 | 0986534 | Check valve, aspirator hose | 1 | |
83 | 0513134 | Bracket, shift assist | 1 | |
84 | 0398693 | Powerhead gasket set | 1 | |