| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | YM123900-21000 | CRANKSHAFT | ||
| 2 | CRANKSHAFT | |||
| 3 | YM129900-21200 | GEAR | ||
| 4 | YM121850-21290 | PEG | ||
| 5 | YM121850-21920 | PEG | ||
| 6 | YM22512-070140 | WOODRUFF KEY | ||
| 7 | YM129900-21640 | PLAIN WASHER | ||
| 8 | YM123900-21650 | PULLEY | ||
| 9 | YM121850-21680 | BOLT | ||
| 10 | YM121850-21130 | SCREW | ||
| 11 | YM123900-21580 | FLYWHEEL | ||
| 12 | FLYWHEEL | |||
| 13 | YM127410-21480 | RING GEAR | ||
| 14 | YM123900-22080 | PISTON ASSEMBLY | ||
| 15 | PISTON | |||
| 16 | YM123900-22050 | PISTON RING KIT | ||
| 17 | PISTON RING | |||
| 18 | PISTON RING | |||
| 19 | PISTON RING | |||
| 20 | PISTON RING | |||
| 21 | PISTON RING | |||
| 22 | YM119173-22300 | PISTON PIN | ||
| 23 | YM22252-000370 | SNAP RING | ||
| 24 | YM123900-23000 | CONROD | ||
| 25 | CONROD | |||
| 26 | BUSHING | |||
| 27 | YM123900-23910 | BUSHING | ||
| 28 | YM123900-23200 | SCREW | ||
| 29 | YM123900-23600 | CONROD BEARING | ||
| 30 | CONROD BEARING | |||
| 31 | YM123900-23610 | CONROD BEARING | ||
| 32 | CONROD BEARING | |||
| 33 | YM123900-22900 | PISTON | ||
| 34 | PISTON | |||
| 35 | YM123900-22950 | PISTON RING ASSEMBLY | ||
| 36 | PISTON RING | |||
| 37 | PISTON RING | |||
| 38 | PISTON RING |