| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | YM121450-11270 | SUPPORT | 20425- | |
| 2 | YM121450-11260 | SUPPORT | 20425- | |
| 3 | YM729350-11650 | ROCKER ARM ASS'Y,INTAKE | 20425- | |
| 3 | \6\ | ARM,ROCKER | 20425- | |
| 4 | YM101158-11230 | SCREW,ADJUSTING | 20425- | |
| 5 | YM26756-080002 | NUT | 20425- | |
| 6 | YM729350-11660 | ROCKER ARM ASS'Y,EXHAUST | 20425- | |
| 6 | \6\ | ARM,ROCKER | 20425- | |
| 7 | YM101158-11230 | SCREW,ADJUSTING | 20425- | |
| 8 | YM26756-080002 | NUT | 20425- | |
| 9 | YM121550-11280 | SPRING | 20425- | |
| 10 | YM121550-11290 | WASHER | 20425- | |
| 11 | YM129350-11240 | SHAFT | 20425- | |
| 12 | \6\ | BALL | 20425- | |
| 13 | YM26921-080102 | SCREW,SET | 20425- | |
| 14 | YM22242-00140 | RING,SNAP | 20425- |