We keep fouling plugs on our 2000 yamaha boat motor, what is the oil ratio for it?

Question

We keep fouling plugs on our 2000 yamaha boat motor, what is the oil ratio for it?

Answer 1

I am not trying to sound flipant....

4 strokes dont have any oil mixed in the gas.

Most yamaha's are 4 strokes these days.

Answer 2

You need the model and the year to determine that, go to this site and read the manual, or find the one that came with the motor

http://www.yamaha-motor.com/outboard/ser...

Answer 3

Does it have oil injection?? what <HP> Carb float flooding> timing off>Wrong plugs? Coils bad>>May things could cause this>

Answer 4

50:1     abot 2.5 ounces of oil per gallon of gas