| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | YM129150-01200 | BOLT | 03508- | |
| 2 | YM129408-01330 | GASKET (KIT) | 03508- | |
| YM129407-11700 | CYLINDER HEAD ASS'Y | 03508- | ||
| 3 | \6\ | HEAD,CYLINDER | 03508- | |
| 4 | YM120130-11860 | GUIDE,INTAKE VALVE | 03508- | |
| 5 | YM129150-11810 | GUIDE,EXHAUST VALVE | 03508- | |
| 6 | YM26216-060202 | STUD | 03508- | |
| 7 | YM27241-400000 | PLUG | 03508- | |
| 8 | YM129100-11100 | VALVE,INTAKE | 03508- | |
| 9 | YM129100-11110 | VALVE,EXHAUST | 03508- | |
| 10 | YM129795-11120 | SPRING | 03508- | |
| 11 | YM129795-11180 | SEAT | 03508- | |
| 12 | YM27310-080000 | COTTER | 03508- | |
| 13 | YM121400-11340 | SEAL,EXHAUST (KIT) | 03508- | |
| 14 | YM124460-11340 | SEAL,INTAKE (KIT) | 03508- | |
| 15 | YM129150-11370 | CAP | 03508- | |
| 16 | YM119625-11880 | SEAT (KIT) | 03508- | |
| 17 | YM119625-11900 | RETAINER | 03508- | |
| 18 | YM119625-11870 | PROTECTOR (KIT) | 03508- | |
| 19 | YM22351-060012 | PIN,SPRING | 03508- | |
| 20 | YM26366-060002 | NUT | 03508- |