| Item | Part No. | Part Name | Qty | Serial No. |
| (266-20-49100) | ENGINE ASS'Y | 4501- | ||
| 1 | KT14351-2111-2 | PISTON | 4501- | |
| 2 | KT14671-2105-2 | PISTON RING ASS'Y | 4501- | |
| 3 | KT14351-2131-1 | PIN | 4501- | |
| 4 | KT14109-2133-2 | CIRCLIP | 4501- | |
| KT14621-2201-1 | CONNECTING ROD A. | 4501- | ||
| 5 | \6\ | ROD | 4501- | |
| 6 | KT14301-2214-5 | BOLT | 4501- | |
| 7 | KT14301-2217-1 | WASHER | 4501- | |
| 8 | KT14351-2135-1 | BUSHING | 4501- | |
| 9 | KT14621-2231-1 | METAL,CRANK PIN | 4501- | |
| KT14621-2297-1 | METAL,CRANK PIN¤ 0.5MM (US) | 4501- | ||
| KT14621-2298-1 | METAL,CRANK PIN¤ 0.5MM (US) | 4501- | ||
| KT14621-2301-2 | CRANKSHAFT ASS'Y | 4501- | ||
| 10 | \6\ | SHAFT | 4501- | |
| 11 | KT17011-2318-1 | PLUG | 4501- | |
| 12 | KT14301-2345-2 | BEARING | 4501- | |
| 13 | KT14301-2346-1 | BEARING | 4501- | |
| 14 | KT14611-2411-3 | GEAR | 4501- | |
| 15 | KT05712-00715 | KEY | 4501- | |
| 16 | KT14611-2413-1 | COLLER | 4501- | |
| 17 | KT14621-2611-1 | WEIGHT | 4501- | |
| 18 | KT14611-2615-1 | BOLT | 4501- | |
| 19 | KT14611-2616-2 | WASHER | 4501- | |
| 20 | KT14615-2511-1 | FLYWHEEL | 4501- | |
| 21 | KT15001-6382-2 | GEAR | 4501- | |
| 22 | KT05712-00735 | KEY | 4501- | |
| 23 | KT14201-2336-2 | NUT | 4501- | |
| 24 | KT14201-2337-1 | WASHER | 4501- | |
| 25 | KT14301-7428-5 | PULLEY | 4501- | |
| 26 | KT01150-00816 | BOLT | 4501- |