Listed gear-ratio data for 2006 Yamaha 9.9 HP outboards. Match your exact model and lower unit; some models may have more than one gearcase configuration.
2006 Yamaha 9.9 HP
Listed ratio values: 2.08:1, 2.92:1
| Model | Gear ratio |
|---|---|
| 9.9MSH | 2.08:1 |
| F9.9ELR2K | 2.08:1 |
| F9.9MLH2K | 2.08:1 |
| F9.9MSH2K | 2.08:1 |
| T9.9ELH2K | 2.92:1 |
| T9.9ELR2K | 2.92:1 |
| T9.9EXH2K | 2.92:1 |
Use the ratio that matches your exact outboard model and lower unit, then enter it in the PropSlip calculator.