| Item | Part No. | Part Name | Qty | Serial No. |
| ENGINE, TIER I (SEE FIG. A0100-01A0) | A90002-A90008- | |||
| YM12390021000 | CRANKSHAFT | A90002-A90008- | ||
| 1 | (NSS) | CRANKSHAFT | A90002-A90008- | |
| 2 | YM12990021200 | GEAR, TIMING | A90002-A90008- | |
| 3 | YM12185021290 | PIN, DOWEL | A90002-A90008- | |
| 4 | YM12185021920 | PIN, DOWEL | A90002-A90008- | |
| 5 | YM22512070140 | KEY | A90002-A90008- | |
| 6 | YM12990021640 | WASHER | A90002-A90008- | |
| 7 | YM12390021680 | PULLEY | A90002-A90008- | |
| 8 | YM12185021680 | BOLT | A90002-A90008- | |
| 9 | YM12185021130 | BOLT | A90002-A90008- | |
| 10 | YM12391021500 | HUB, INTERMEDIATE | A90002-A90008- | |
| YM12391021580 | FLYWHEEL | A90002-A90008- | ||
| 11 | (NSS) | FLYWHEEL | A90002-A90008- | |
| 12 | YM12741021480 | GEAR, RING | A90002-A90008- | |
| 13 | YM26106080252 | BOLT | A90002-A90008- | |
| YM12390022080 | PISTON | A90002-A90008- | ||
| 14 | (NSS) | PISTON | A90002-A90008- | |
| 15 | YM12390022050 | SET, RING | A90002-A90008- | |
| YM12390122900 | PISTON +0.25 MM | A90002-A90008- | ||
| 14 | (NSS) | PISTON | A90002-A90008- | |
| 15 | YM12390022950 | SET, RING | A90002-A90008- | |
| 16 | YM11917322300 | PIN | A90002-A90008- | |
| 17 | YM22252000370 | RING, SNAP | A90002-A90008- | |
| YM12390023000 | ROD | A90002-A90008- | ||
| 18 | (NSS) | ROD, PISTON | A90002-A90008- | |
| 19 | YM12390023910 | BUSHING, PIN | A90002-A90008- | |
| 20 | YM12390023200 | BOLT | A90002-A90008- | |
| 21 | YM12390023600 | BEARING | A90002-A90008- | |
| 21 | YM12390023610 | BEARING -0.25 MM | A90002-A90008- | |