The correct mixture is 50:1
Fuel mixture ratio for Yamaha rt100?
50:1
100-1
50:1
50-1
torque specs air fuel mixture screw on a yz125 2003
how to adjust air fuel mixture on yamaha sh50? Is the screw an air screw (in to richen) or a fuel screw? (out to richen)
it is oil injected
100:1
Most all models of Yamaha outboards can be operated on a 50:1 fuel to oil ratio.
The 3.3 hp Mariner outboard requires a 50:1 ratio, one pint of 2 cycle oil to six gallons of fuel.
I have a 1983 IT175 Yamaha and the fuel mix is recommended by Yamaha at 28 to 32: 1 I use 30:1 ratio. Hope this helps