| Item | Part No. | Part Name | Qty | Serial No. |
| ENGINE, TIER I (SEE FIG. A0100-01A0) | A40034-A40042- | |||
| YM123900-21000 | CRANKSHAFT | A40034-A40042- | ||
| 1 | (NSS) | CRANKSHAFT | A40034-A40042- | |
| 2 | YM129900-21200 | GEAR, TIMING | A40034-A40042- | |
| 3 | YM121850-21290 | PIN, DOWEL | A40034-A40042- | |
| 4 | YM121850-21920 | PIN, DOWEL | A40034-A40042- | |
| 5 | YM225120-70140 | KEY | A40034-A40042- | |
| 6 | YM129900-21640 | WASHER | A40034-A40042- | |
| 7 | YM123900-21680 | PULLEY | A40034-A40042- | |
| 8 | YM121850-21680 | BOLT | A40034-A40042- | |
| 9 | YM121850-21130 | BOLT | A40034-A40042- | |
| 10 | YM123910-21500 | HUB, INTERMEDIATE | A40034-A40042- | |
| YM123910-21580 | FLYWHEEL | A40034-A40042- | ||
| 11 | (NSS) | FLYWHEEL | A40034-A40042- | |
| 12 | YM127410-21480 | GEAR, RING | A40034-A40042- | |
| 13 | YM261060-80252 | BOLT | A40034-A40042- | |
| YM123900-22080 | PISTON | A40034-A40042- | ||
| 14 | (NSS) | PISTON | A40034-A40042- | |
| 15 | YM123900-22050 | SET, RING | A40034-A40042- | |
| YM123901-22900 | PISTON +0.25 MM | A40034-A40042- | ||
| 14 | (NSS) | PISTON | A40034-A40042- | |
| 15 | YM123900-22950 | SET, RING | A40034-A40042- | |
| 16 | YM119173-22300 | PIN | A40034-A40042- | |
| 17 | YM222520-00370 | RING, SNAP | A40034-A40042- | |
| YM123900-23000 | ROD | A40034-A40042- | ||
| 18 | (NSS) | ROD, PISTON | A40034-A40042- | |
| 19 | YM123900-23910 | BUSHING, PIN | A40034-A40042- | |
| 20 | YM123900-23200 | BOLT | A40034-A40042- | |
| 21 | YM123900-23600 | BEARING | A40034-A40042- | |
| 21 | YM123900-23610 | BEARING -0.25 MM | A40034-A40042- | |