Listed gear-ratio data for 2003 Yamaha 15 HP outboards. Match your exact model and lower unit; some models may have more than one gearcase configuration.
2003 Yamaha 15 HP
Listed ratio values: 2.08:1
| Model | Gear ratio |
|---|---|
| 15MSHB | 2.08:1 |
| F15ELHB | 2.08:1 |
| F15ESHB | 2.08:1 |
| F15MLHB | 2.08:1 |
| F15MSHB | 2.08:1 |
| F15PLHB | 2.08:1 |
| F15PLRB | 2.08:1 |
Use the ratio that matches your exact outboard model and lower unit, then enter it in the PropSlip calculator.