It depends on the make, and year, of the engine. Generally though, outboards manufactured prior to 1965 require a 24:1 ratio, and 1966 on use a 50:1 mix.
Gas_to_oil_ratio_mix_for_Montgomery_Ward_15_horse_marine_outboard_motor
50:1
40to1
I wish I knew!
A 175hp Mercury outboard requires a 50:1 fuel to oil ratio.
My 2003 3.3hp outboard motor is 50:1 mixture.
What is the oil to gas ratio for a 15 hp force outboard moter
50:1
50:1
mix 50:1
50 to 1
50 to 1