The 88 hp Evinrude, all models, requires a 50:1 ratio.
50 to 1
They are all 50 to 1
The 55 hp Johnson outboard requires a 50:1 ratio, one pint of 2 cycle oil, to six gallons of fuel.
The 1985 model, 50 hp Johnson outboard requires a 50:1 ratio, one pint of 2 cycle oil, to six gallons of fuel.
The 20 hp Mercury outboard requires a 50:1 ratio, roughly one pint of 2 cycle oil, to six gallons of fuel.
I always run my 2 cycle outboards at a 50 to 1 ratio. also be sure you are using outboard 2 cycle. not all 2cycle oil is the same!
50:1 oil mix is typical for outboard two-cycles. Some do a little more in the winter.
1 pint of oil for 6 gallons of gas 50/1 gas to oil mix
The 1992 model, 15 hp Evinrude outboard would use a 50:1 ratio, roughly one pint of 2 cycle oil, to six gallons of fuel.
The 1978 model, 75 hp Mercury outboard, requires a 50:1 ratio, roughly one pint of 2 cycle oil, to six gallons of fuel.
I believe it is 50 : 1 (16 oz. oil to 6 gallons gas)
50:1