| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | YM705190-21700 | CRANKSHAFT ASS'Y | 2501- | |
| 2 | YM105190-21100 | WEIGHT,BALANCE | 2501- | |
| 3 | YM106100-21130 | BOLT | 2501- | |
| 4 | YM22512-050120 | KEY | 2501- | |
| 5 | YM22512-100260 | KEY | 2501- | |
| 6 | YM105100-21200 | GEAR | 2501- | |
| 7 | YM104200-21530 | NUT | 2501- |