| Item | Part No. | Part Name | Qty | Serial No. |
| \0 | (21D-01-00020) | ENGINE, ASSY. | ||
| 1 | YM723900-01560 | CYLINDER BLOCK, ASSY. | ||
| 2 | \6\ | CYLINDER BLOCK, ASSY. | ||
| 4 | YM171051-01921 | PLUG | ||
| 5 | YM123900-02020 | BOLT | ||
| 8 | YM123900-02410 | BUSHING | ||
| 9 | YM22351-060012 | SPRING PIN | ||
| 10 | YM23875-030000 | PLUG | ||
| 11 | YM27231-700000 | PLUG | ||
| 12 | YM27241-300000 | PLUG | ||
| 13 | YM23875-030000 | PLUG | ||
| 14 | YM27225-120160 | PLUG | ||
| 15 | YM121851-11970 | PIPE | ||
| 16 | YM123900-02800 | BEARING | ||
| 16 | YM123900-02340 | BEARING (--0.25 mm) | ||
| 19 | YM123900-02930 | BEARING, THRUST | ||
| 19 | YM123900-02940 | BEARING, THRUST (+0.25 mm) | ||
| 22 | YM119174-01200 | BOLT | ||
| 23 | YM123900-01340 | GASKET |