Oil fuel ratio for z 1983 Yamaha IT should be listed on the oil bottle. The most common ratio is 50:1.
In a stock PW80, there is no need to mix oil with the fuel. The oil is injected into the carburetor throat by the oil pump. The factory ratio is estimated to be about 24:1, which is quite rich. On bikes with the oil pump disabled, ratios as lean as 40:1 have been tried with success. The optimum ratio will ultimately depend on the elevation and the jetting used There is an oil tank under the seat
2.33 Ounces
32.1
Check with dealer
the oil fuel ratio is 32 to 1 you should not change ratio even if you do enginge mods keep it the same
All the Yamaha PW80's and PW50's are 2 strokes, so they dont have engine oil. You mix 2 stroke engine oil into the petrol using 25:1 mixing ratio as im pretty sure you know this already. But they do have transmission oil. You can use 4 stroke engine oil for this, or alternatively, use proper transmission oil.
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..........