1974 and later models 50:1 according to the manual I'm looking at.
what the last guy said was wrong! i have a 1980 ski-doo citation 4500 with an 82 motor and it is a pre-mix! you need to mix gas with the oil. i and the dealerships suggest 32 parts gas to 1 part oil, or 32:1!
Its Either 40:1 or 50:1 but you should consult your local Ski-Doo dealer just to be sure
50 to 1
Chrysler outboards manufactured after 1966 require a 50:1 fuel/oil mix.
The correct fuel oil ratio is 50/1.
Yamaha recommeded 20/1
Most engines after the early 70's take a 50/1 ratio,until they became injected.
the ratio is 50:1 3oz per gallon
Chrysler outboards manufactured after 1966 require a 50:1 fuel to 2 cycle oil mix. This is roughly one pint of oil, to six gallons of fuel.
The 1978 model, 80 hp Mercury requires a 50:1 ratio, roughly one pint of 2 cycle oil, to six gallons of fuel.
Mix air,heat and fuel.
Hi .. the oil mix ratio for this motor will be 50 to 1 or 16 ounces one pint for every 6 gallons of gas.