I use a 50:1 mixture in my 9.9 Johnson
what is the oil/fuel mixture for 1975 15hp johnson
50:1
50:1 25litres of fuel to 500ml of oil
The 2 stroke, 9.9hp Johnson outboard produced after 1966, requires a 50-1 ratio. This is roughly one pint of 2 cycle oil, to six gallons of fuel.
50:1
100:1
Gas/Oil Mix = 50:1
Chrysler outboards produced after 1966 require a 50:1 fuel to oil mix.
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 1970 model, 9.9hp Johnson outboard requires a 50:1 fuel to oil ratio. This is roughly, one pint of 2 cycle oil, to six gallons of fuel.
A Johnson 48 special, 1989 year model, requires a 50:1 fuel to 2 cycle oil mix. This is roughly one pint of 2 cycle oil, to six gallons of fuel.