I always run my 2 cycle outboards at a 50 to 1 ratio. also be sure you are using outboard 2 cycle. not all 2cycle oil is the same!
50 to 1
The fuel oil ratio for a 140 hp Mariner outboard motor is 50:1. Mariner is a brand of the Mercury Marine company.
50/1
A 175hp Mercury outboard requires a 50:1 fuel to oil ratio.
The 3.3 hp Mariner outboard requires a 50:1 ratio, one pint of 2 cycle oil to six gallons of fuel.
The 1998 model Mariner outboards use a 50:1 ratio.
They are all 50 to 1
The correct ratio for a 5hp Mariner outboard would be 50:1, this is roughly one pint of 2 cycle oil, to six gallons of fuel.
A 5 hp Mariner outboard will do fine with a 50:1 ratio, one pint of 2 cycle oil, to six gallons of fuel.
The 88 hp Evinrude, all models, requires a 50:1 ratio.
The 55 hp Johnson outboard requires a 50:1 ratio, one pint of 2 cycle oil, to six gallons of fuel.
50/1