| Item | Part No. | Part Name | Qty | Serial No. |
| | STANDARD | | |
| 1 | YM129105-22090 | PISTON ASS'Y | | 05091- |
| 2 | YM729105-22500 | PISTON RING ASS'Y | | 05091- |
| | OVERSIZE 0.25MM | | |
| 1 | YM729106-22900 | PISTON ASS'Y (OS) | | 05091- |
| 2 | YM729105-22951 | PISTON RING ASS'Y,0.25MM (OS) | | 05091- |
| 3 | YM129150-22300 | PIN,PISTON | | 05091- |
| 4 | YM121100-22400 | RING,SNAP | | 05091- |
| 5 | YM729150-23700 | CONNECTING ROD ASS'Y | | 05091- |
| 6 | YM121550-23200 | BOLT | | 05091- |
| | STANDARD | | |
| 7 | YM129150-23600 | CRANK PIN METAL A. | | 05091- |
| | UNDERSIZE 0.25MM | | |
| 7 | YM129150-23610 | CRANK PIN METAL A.,0.25MM (US) | | 05091- |
| 8 | YM129100-23910 | BUSHING,CONNECTING ROD (SERVICE PARTS) | | 05091- |
