The 25 hp Evinrude outboard has been designed to run a 50:1 ratio, for earlier models, and 100:1 for late model engines. Pre 1965 models run a 24:1 ratio.
im trying to find out what to mix the gas at for a 40 hp evinrude outboard motor
The fuel mix is 24:1
The 9.5 Evinrude Has a 50:1 Ratio Oil Mixture
50:1
1:50
50:1
1 pint of oil for 6 gallons of gas 50/1 gas to oil mix
The 88 hp Evinrude, all models, requires a 50:1 ratio.
50to1
From the oil you mix in with the gas
Per Service Manual - Spark Plug Gap is .040" - Plug is Champion L77J4 Fuel Mix is 50:1 or 12 gallons Gas to 1 quart TC-W Outboard Motor Oil
50:1