An 18 hp Evinrude outboard, model 18202 would be a 1972 year model.
The fuel mix is 24:1
A 18hp Mercury outboard, serial number 5955388 is a 1982 year model.
The oil mixture for that motor is 1 pint of oil to 6 gallons of gas
Mid 80s
paid 150.00 for a 1972 in perfect shape
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.
the 15hp murc is the best relay an 18hp and are cheap new i bought my 15hp murc with and 18hp relay and go it for $1800 brand new and runs the best i have ever seen and much faster and cheaper than Yamaha
I dont know how old this thread is, but my 18 hp johnson evinrude with serial number 18304 A is a 1973 model.
On average 1 HP Equals 25-30 lbs of thrust Depending on Prop Pitch. So a 15 HP would give you 450 lbs of thrust. I had a 18HP Evinrude Fastwin on a 14 ft Aluminum Jon Boat that would get water ski's or Hydro Slider on plane.
18hp
The 18hp Johnson Seahorse model FD-16A outboard motor was manufactured in 1965. This model is part of the Johnson Seahorse series, which was popular during that era for its reliability and performance. If you need more specific information about its features or history, feel free to ask!
The 1961 Johnson Sea Horse 18hp outboard motor typically requires a fuel mixture of 50:1, which means 2.5 ounces of 2-stroke oil per gallon of gasoline. It's important to use a high-quality 2-stroke oil designed for outboard motors to ensure proper lubrication and performance. Always refer to the owner's manual for specific recommendations and to verify the correct ratio for your engine model.