Listed gear-ratio data for 2000 Yamaha 40 HP outboards. Match your exact model and lower unit; some models may have more than one gearcase configuration.
2000 Yamaha 40 HP
Listed ratio values: 1.85:1, 2.00:1
| Model | Gear ratio |
|---|---|
| 40TLRY | 1.85:1 |
| C40TLRY | 1.85:1 |
| F40ESRY | 2.00:1 |
| F40MLHY | 2.00:1 |
| F40MSHY | 2.00:1 |
| F40TLRY | 2.00:1 |
Use the ratio that matches your exact outboard model and lower unit, then enter it in the PropSlip calculator.