A 25hp Evinrude, 1972 year model, requires a 50:1 fuel, to 2 cycle oil, ratio. One pint of 2 cycle oil, to six gallons of fuel, is just a bit richer than 50:1, and a good mix.
An 18 hp Evinrude outboard, model 18202 would be a 1972 year model.
1972
That is a 1972 model.
gas and oil mixture
I have a 1972 85esl72 Johnson outboard motor and I use a 50:1 ratio.
The Evinrude Fastwin 18 HP outboard motor with serial number 18802E-E15388 was manufactured in 1972. The first two digits of the serial number indicate the model year, and in this case, "E" corresponds to 1972 in Evinrude's coding system.
50:1
The value of a 1972 50hp Evinrude outboard motor with controls typically ranges from $500 to $1,500, depending on its condition, maintenance history, and whether it’s running properly. Factors such as cosmetic appearance, included accessories, and local demand can also influence the price. For a more accurate estimate, consider checking local listings or consulting with marine dealers.
Chrysler outboards produced after 1966 require a 50:1 fuel to oil mix.
Gas/Oil mix for this motor is 50/1,using TCW rated oil.
The 1972 model, 125hp Johnson, requires a 50:1 fuel, to 2 cycle oil ratio. This is roughly one pint of oil, to six gallons of fuel.
The recommended fuel/oil ratio for a 1972 model 65hp mercury is 50:1, roughly six gallons of fuel to one pint of2 cycle oil.