| Item | Part No. | Part Name | Qty | Serial No. |
| 2691-2-11100 | ENGINE ASS'Y | 1001- | ||
| 1 | 2691-7-12110 | PISTON | 1001- | |
| 2 | 2691-7-12120 | PISTON RING ASS'Y | 1001- | |
| 3 | 2691-7-12130 | PIN | 1001- | |
| 4 | 2691-7-12140 | CIRCLIP | 1001- | |
| 2691-7-12200 | CONNECTING ROD ASS'Y | 1001- | ||
| 5 | \6\ | ROD | 1001- | |
| 6 | 2691-7-12220 | BOLT | 1001- | |
| 7 | 2691-7-12230 | WASHER | 1001- | |
| 8 | 2691-7-12240 | BUSHING | 1001- | |
| 9 | 2691-7-12250 | METAL | 1001- | |
| 2691-7-12260 | METAL,US 0.5MM | 1001- | ||
| 2691-7-12270 | METAL,US 0.5MM | 1001- | ||
| 2691-7-12300 | CRANKSHAFT ASS'Y | 1001- | ||
| 10 | \6\ | SHAFT | 1001- | |
| 11 | 2691-7-12320 | PLUG | 1001- | |
| 12 | 2691-7-12410 | BEARING | 1001- | |
| 13 | 2691-7-12420 | BEARING | 1001- | |
| 14 | 2691-7-12430 | GEAR | 1001- | |
| 15 | 2691-7-12440 | KEY | 1001- | |
| 16 | 2691-7-12450 | COLLAR | 1001- | |
| 17 | 2691-7-12460 | WEIGHT | 1001- | |
| 18 | 2691-7-12470 | BOLT | 1001- | |
| 19 | 2691-7-12480 | WASHER | 1001- | |
| 20 | 2691-7-12490 | FLYWHEEL | 1001- | |
| 21 | 2691-7-12510 | GEAR | 1001- | |
| 22 | 2691-7-12520 | KEY | 1001- | |
| 23 | 2691-7-12530 | NUT | 1001- | |
| 24 | 2691-7-12540 | WASHER | 1001- | |
| 25 | 2691-7-12550 | PULLEY | 1001- | |
| 26 | 2691-7-12560 | BOLT | 1001- |