Listed gear-ratio data for 1997 Yamaha 40 HP outboards. Match your exact model and lower unit; some models may have more than one gearcase configuration.
1997 Yamaha 40 HP
Listed ratio values: 1.85:1
| Model | Gear ratio |
|---|---|
| 40ELRV | 1.85:1 |
| 40ESRV | 1.85:1 |
| 40MLHV | 1.85:1 |
| 40MSHV | 1.85:1 |
| 40TLHV | 1.85:1 |
| 40TLRV | 1.85:1 |
| C40ELRV | 1.85:1 |
| C40ESHV | 1.85:1 |
| C40MSHV | 1.85:1 |
| C40PLRV | 1.85:1 |
Use the ratio that matches your exact outboard model and lower unit, then enter it in the PropSlip calculator.