I have a 1988 evinrude 6 hp that calls for 100/1 mixture right on the cowling.
50:1
50/1
For the 1995 model 40 hp Evinrude, mix at a 50:1 ratio.
ratio 50:1
The 1979 model, 25 hp Evinrude requires a 50:1 ratio, one pint of 2 cycle oil, to six gallons of fuel.
You are looking at 50:1. Hope that helps.
I have the same motor and use 50:1.
50:1
50:1
The 1971 model, 18 hp Evinrude outboard requires a 50:1 ratio, one pint of 2 cycle oil, to six gallons of fuel.
The 1977 model, 140 hp Evinrude outboard, requires a 50:1 ratio, one pint of 2 cycle oil, to six gallons of fuel.