The 1994 model, 2 stroke 15 hp Evinrude outboard will operate well on a 50:1 ratio. One pint of 2 cycle oil, to six gallons of fuel.
The 9.5 Evinrude Has a 50:1 Ratio Oil Mixture
50:1
50:1
50 to 1
50:1 if you are using regular two stroke oil, 100:1 with a good synthetic oil
The 1975 year model, 100 hp Evinrude, requires a 50:1 fuel to oil ratio.
50 to 1
50:to1
Its 4 stroke so 100:0
50:1 all of the Johnson evinrude up to 1963 when they changed to 24:1
50:1
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.