Gear ratio reference

1998 Yamaha 8 HP Gear Ratio

Exact Model / Lower Unit Ratio

Listed gear-ratio data for 1998 Yamaha 8 HP outboards. Match your exact model and lower unit; some models may have more than one gearcase configuration.

1998 Yamaha 8 HP

Listed ratio values: 2.08:1

Model Gear ratio
8MLHW 2.08:1
8MSHW 2.08:1

Use the ratio that matches your exact outboard model and lower unit, then enter it in the PropSlip calculator.