Listed gear-ratio data for 2010 Yamaha 15 HP outboards. Match your exact model and lower unit; some models may have more than one gearcase configuration.
2010 Yamaha 15 HP
Listed ratio values: 2.08:1
| Model | Gear ratio |
|---|---|
| 15MSH | 2.08:1 |
| F15CELH | 2.08:1 |
| F15CESH | 2.08:1 |
| F15CMLH | 2.08:1 |
| F15CMSH | 2.08:1 |
| F15CPLH | 2.08:1 |
Use the ratio that matches your exact outboard model and lower unit, then enter it in the PropSlip calculator.