The listed air gap for this engine is .030 in.
50:1
The 1975 year model, 100 hp Evinrude, requires a 50:1 fuel to oil ratio.
50:to1
the 85 is the horsepower and the 75 is the year(1975)That is what I was told...I have same motor
1975
The Evinrude with serial number 5524R-02192 is a 1975 model and typically has a horsepower rating of 25 HP. You can confirm this information through Evinrude's official documentation or service manuals for that specific serial number.
Per Service Manual - Spark Plug Gap is .040" - Plug is Champion L77J4 Fuel Mix is 50:1 or 12 gallons Gas to 1 quart TC-W Outboard Motor Oil
Compression on a 1975 70 hp Evinrude outboard refers to the pressure generated within the engine's cylinders during the compression stroke, which is crucial for efficient combustion. Typically, compression readings for this model should be between 90 to 120 psi. Low compression can indicate issues such as worn piston rings, damaged cylinder walls, or valve problems, which can affect engine performance and reliability. Regular compression testing is essential for maintaining the health of the outboard motor.
Jew
1975 Long shaft
Is there a shear on a 1975 mercury 200 (20hp) outboard motor
Advertised Horsepower is---245HP @ 4000 RPMs.