The 1975 model, 7.5 hp Mercury outboard, requires a 50:1 ratio, roughly one pint of 2 cycle oil, to six gallons of fuel.
50:1
A 175hp Mercury outboard requires a 50:1 fuel to oil ratio.
My 2003 3.3hp outboard motor is 50:1 mixture.
50:1
mix 50:1
40:1 ratio
50 to 1
50:1
50 to 1 oil and gas mixture
50:1
50:1
The 1996 model, 15 hp Mercury outboard requires a 50:1 ratio, one pint of 2 cycle oil, to six gallons of fuel.