The fuel oil ratio for a 140 hp Mariner outboard motor is 50:1. Mariner is a brand of the Mercury Marine company.
A 1981 model, 140 hp Johnson outboard requires a 50:1 ratio.
The 1977 model, 140 hp Evinrude outboard, requires a 50:1 ratio, one pint of 2 cycle oil, to six gallons of fuel.
50:1
1:50
about 10 to 12 gallons per hour at 80% throttle
A 140hp Chrysler outboard would use a 50:1 mix, roughly 1 pint of 2 cycle oil to 6 gallons of fuel.....Beaufort
GCF(160, 210, 140) = 10 so the ratio is 16 : 21 : 14
140 lbs
Approximately 380 pounds.
The 120 and 140 are the exact same engine except the carburetors are different on the 140.
It is 3 to 2.
140 Horse Power