Listed gear-ratio data for 2009 Yamaha 8 HP outboards. Match your exact model and lower unit; some models may have more than one gearcase configuration.
2009 Yamaha 8 HP
Listed ratio values: 2.08:1, 2.92:1
| Model | Gear ratio |
|---|---|
| 8MSH | 2.08:1 |
| F8CMLH | 2.08:1 |
| F8CMSH | 2.08:1 |
| T8DELH | 2.92:1 |
| T8DEXH | 2.92:1 |
| T8DPLH | 2.92:1 |
| T8DPLR | 2.92:1 |
| T8DPXH | 2.92:1 |
| T8DPXR | 2.92:1 |
Use the ratio that matches your exact outboard model and lower unit, then enter it in the PropSlip calculator.