The 1979 - 1980 model, 115 hp Mercury outboard, requires a 50:1 ratio. One pint of 2 cycle oil, to six gallons of fuel.
A 115hp Mercury outboard boat motor has a fuel to oil ratio of 50 to 1. This translates to 16 ounces of 2-cycle oil to every 6 gallons of fuel.
50:1
50:1
A 175hp Mercury outboard requires a 50:1 fuel to oil ratio.
My 2003 3.3hp outboard motor is 50:1 mixture.
mix 50:1
50:1
40:1 ratio
50:1
50 to 1 oil and gas mixture
50:1
50 to 1