I have a Force 70 HP from 1993 and it's 50:1
50:1
The 120 hp, Force / Mercury outboard, requires a 50:1 ratio, one pint of 2 cycle oil to six gallons of fuel.
50:1
25:1
I have a 1972 85esl72 Johnson outboard motor and I use a 50:1 ratio.
100-1
50:1
20/1
50 to 1
32:1
50-1
50:1