32.1
Oil fuel ratio for z 1983 Yamaha IT should be listed on the oil bottle. The most common ratio is 50:1.
its says to use 32:1 ratio, if the bike has a fresh rebuild of the cylinder and piston use 15:1
the oil fuel ratio is 32 to 1 you should not change ratio even if you do enginge mods keep it the same
they have oil injection. but if your are not using it, 40:1 is a good ratio.
32:1
Mixing ratio should be 50:1
I believe Yamaha came out with oil injection. You do not mix the oil with the gasoline - the oil is in its own reservoir and mixes automatically.
The non oil injected model 60 hp Yamaha outboard requires a 50:1 ratio, one pint of 2 cycle oil, to six gallons of fuel.
36 parts fuel to 1 part oil..........
Most all models of Yamaha outboards can be operated on a 50:1 fuel to oil ratio.
32:1