Listed gear-ratio data for 2015 Yamaha 8 HP outboards. Match your exact model and lower unit; some models may have more than one gearcase configuration.
2015 Yamaha 8 HP
Listed ratio values: 2.08:1
| Model | Gear ratio |
|---|---|
| F8LMHB | 2.08:1 |
| F8SMHB | 2.08:1 |
Use the ratio that matches your exact outboard model and lower unit, then enter it in the PropSlip calculator.