Listed gear-ratio data for 2001 Yamaha 25 HP outboards. Match your exact model and lower unit; some models may have more than one gearcase configuration.
2001 Yamaha 25 HP
Listed ratio values: 1.85:1, 2.08:1, 2.42:1
| Model | Gear ratio |
|---|---|
| 25MLHZ | 2.08:1 |
| 25MSHZ | 2.08:1 |
| 25MSHZ3 | 1.85:1 |
| F25ELHZ | 2.08:1 |
| F25ELRZ | 2.08:1 |
| F25ESHZ | 2.08:1 |
| F25ESRZ | 2.08:1 |
| F25MLHZ | 2.08:1 |
| F25MSHZ | 2.08:1 |
| F25TLRZ | 2.08:1 |
| T25TLRZ | 2.42:1 |
Use the ratio that matches your exact outboard model and lower unit, then enter it in the PropSlip calculator.