20/1
50:1
50:1
50:1
50:1
Mercury outboards prior to 1966 use a 24:1 fuel to oil ratio.
40:1 ratio
50 to 1
The 120 hp, Force / 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.
An 1985 model, 25 hp Mercury outboard requires a 50:1 fuel, to 2 cycle oil ratio.
The 1973 model, 7.5 hp Mercury outboard requires a 50:1 ratio, one pint of 2 cycle oil, to six gallons of fuel.
50 : 1 is the correct fuel mixture