Gear ratio reference

2019 Yamaha 425 HP Gear Ratio

Exact Model / Lower Unit Ratio

Listed gear-ratio data for 2019 Yamaha 425 HP outboards. Match your exact model and lower unit; some models may have more than one gearcase configuration.

2019 Yamaha 425 HP

Listed ratio values: 1.79:1

Model Gear ratio
LXF425ESA 1.79:1
LXF425ESA2 1.79:1
LXF425ESA7 1.79:1
LXF425USA 1.79:1
LXF425USA2 1.79:1
LXF425USA7 1.79:1
LXF425XSA 1.79:1
LXF425XSA2 1.79:1
LXF425XSA7 1.79:1
XF425ESA 1.79:1
XF425ESA2 1.79:1
XF425ESA7 1.79:1
XF425USA 1.79:1
XF425USA2 1.79:1
XF425USA7 1.79:1
XF425XSA 1.79:1
XF425XSA2 1.79:1
XF425XSA7 1.79:1

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