| MP NO. | MODEL | DESCRIPTION | HP |
| 6A1-14390-14 | YAMAHA | VALVE & SEAT ASSY. | 2HP |
| 6E8-14390-12 | YAMAHA | VALVE & SEAT ASSY. | 8HP |
| 6E7-14390-12 | YAMAHA | VALVE & SEAT ASSY. | 9.9/15HP |
| 61J-14390-00 | YAMAHA | NEEDLE VALVE ASSY. | 9.9/15D'94 |
| 626-14390-90 | YAMAHA | VALVE & SEAT ASSY. | 15HP |
| 6JO-14390-14 | YAMAHA | NEEDLE VALVE ASSY. | 20CM'93 |
| 6G0-14390-14 | YAMAHA | VALVE & SEAT ASSY. | 25HP |
| 648-14390-14 | YAMAHA | VALVE & SEAT ASSY. | 25HP |
| 6J0-14390-14 | YAMAHA | VALVE & SEAT ASSY. | 30HP |
| 6F5-14390-20 | YAMAHA | VALVE & SEAT ASSY. | 40HP |
| 6E5-14390-20 | YAMAHA | NEEDLE VALVE ASSY. | 115/120HP |