The oil fuel ratio is usually 25 or 50 to 1
In other words you should add 400 mil of oil per 20 litres (25/1)
i would say 50:1 most 2 stroke outboards are 50:1
hi there its 500ml to a 25 liters
Chrysler outboards manufactured after 1965 require a 50:1 ratio, roughly one pint of 2 stroke oil, to six gallons of fuel.
Mercury outboards of 1986 lineage require a 50:1 ratio. One pint of 2 cycle oil, to six gallons of fuel.
The mixture ratio for Yamaha outboards is 50:1 gas/two stroke oil. That is approximately one pint of gasoline to a plastic coke bottle cap full of two stroke oil.
50:1 for all Force Outboards
Honda only manufactures 4 stroke outboards, therefore no oil is required in the fuel.
all 2 stroke outboards are 50:1 Older Johnson Evinrudes are 24:1 (pre 1965) Some Mercurys are 40:1
The correct ratio for 1991 85hp Yamaha is 1:50. 1 liter of oil for 50 liters of fuel.
Most all models of Yamaha outboards can be operated on a 50:1 fuel to oil ratio.
Mercury outboards prior to 1966 use a 24:1 fuel to oil ratio.
Johnson and Evinrude outboards manufactured prior to 1965 require a 24:1 ratio.