If not using the VRO system, mix fuel at 50:1, one pint of 2 cycle oil to six gallons of fuel.
Its 4 stroke so 100:0
50:1
The 850 model, 85 hp Mercury outboard, is a 2 stroke engine requiring a 50:1 fuel to oil ratio.
They are all 50 to 1
A non oil injected, 1990 model, 2 stroke Yamaha outboard requires a 50:1 ratio, one pint of 2 cycle oil, to six gallons of fuel.
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 55 hp Johnson outboard requires a 50:1 ratio, one pint of 2 cycle oil, to six gallons of fuel.
50:1 oil mix is typical for outboard two-cycles. Some do a little more in the winter.
Chrysler outboards manufactured after 1965 require a 50:1 ratio, roughly one pint of 2 stroke oil, to six gallons of fuel.
The 1990 model Force outboard is of a 2 stroke design requiring a 50:1 fuel to oil ratio.
The 1998 model Mariner outboards use a 50:1 ratio.
The sticker on the side of my 6hp two stroke Suzuki OB reads 100 to 1. Unsure of the year.