about 276lbs
I have a Johnson 85 hp model no 85ESL75E 1975 longshaft low profile powershift II and it weighs 180kg apparently
Depending on the year model, a 15 hp Johnson outboard is listed as having a dry weight of 70 - 85 lbs.
The correct fuel mixture for a 1979 85 hp Johnson outboard motor is 50:1
275 lbs
A Johnson outboard, model number 85TL79R would be a 1979 model, 85 hp.
The 1975 model, 85 hp Johnson outboard requires a 50:1 ratio, one pint of 2 cycle oil, to six gallons of fuel.
The dry weight of a 1987 model, 15 hp Yamaha outboard is 85 lbs.
A 1957 Evinrude 18 hp weighs 85 pounds, so I would assume the Johnson 18 hp would be about the same, give or take a few pounds.
yesw 16 to 1
They are all 50 to 1
The service manual is located at the related link below.