Listed gear-ratio data for 2015 Yamaha 300 HP outboards. Match your exact model and lower unit; some models may have more than one gearcase configuration.
2015 Yamaha 300 HP
Listed ratio values: 1.75:1
| Model | Gear ratio |
|---|---|
| F300NCA | 1.75:1 |
| F300UCA | 1.75:1 |
| F300XCA | 1.75:1 |
| LF300UCA | 1.75:1 |
| LF300XCA | 1.75:1 |
Use the ratio that matches your exact outboard model and lower unit, then enter it in the PropSlip calculator.