| Item | Part No. | Part Name | Qty | Serial No. |
| \0 | (871070069) | ENGINE, ASSY. | ||
| 1 | YM129004-21001 | CRANKSHAFT, ASSY. | ||
| 2 | YM129100-01580 | SPRING PIN | ||
| 5 | YM119802-21201 | GEAR, CRANKSHAFT | ||
| 6 | YM22512-070140 | KEY | ||
| 8 | YM22351-030010 | SPRING PIN | ||
| 9 | YM129004-21650 | PULLEY, CRANK SHAFT | ||
| 10 | YM129795-21661 | WASHER | ||
| 11 | YM121850-21680 | BOLT | ||
| 12 | YM121111-21501 | SCREW | ||
| 13 | YM129128-21590 | FLYWHEEL | ||
| 15 | YM119865-21600 | GEAR, RING | ||
| 16 | YM129005-22080 | PISTON, ASSY. | ||
| 16 | YM129005-22900 | PISTON | ||
| 18 | YM129005-22500 | RING SET, PISTON | ||
| 18 | YM129005-22950 | RING SET (+0.25 mm) | ||
| 22 | YM129202-22300 | PIN | ||
| 23 | YM22252-000260 | CIRCLIP | ||
| 24 | YM729402-23100 | CONNECTING ROD, ASSY. | ||
| 28 | YM129100-23910 | BUSHING | ||
| 29 | YM121550-23200 | SCREW | ||
| 30 | YM129150-23600 | BEARING | ||
| 30 | YM129150-23610 | BEARING (--0.25 mm) |