The 1978 model, 88 hp Evinrude outboard requires a 50:1 ratio, one pint of 2 cycle oil, to six gallons of fuel.
An Evinrude outboard, model number 35853R, would be a 1978 model, 35 hp.
1978
1978
A 15804b is a 1978 motor.
1978
1978
The mix ratio for a 1978 2 horsepower Evinrude outboard motor is typically 50:1, which means 50 parts gasoline to 1 part outboard oil. This ratio ensures proper lubrication and performance of the engine. Always refer to the owner's manual for the specific mix ratio recommended by the manufacturer.
50:1
The 1978 model, 9.8 hp Mercury outboard, requires a 50:1 ratio, one pint of 2 cycle oil, to six gallons of fuel.
The 1978 model, 75 hp Mercury outboard, requires a 50:1 ratio, roughly one pint of 2 cycle oil, to six gallons of fuel.
For a 1978 Evinrude 25hp outboard, you should use a high-quality gear oil specifically designed for marine applications. The recommended type is typically a 90-weight gear oil, such as Evinrude/Johnson Gearcase Lubricant or an equivalent marine-grade oil. Always check the owner's manual for specific product recommendations and specifications to ensure optimal performance and protection.
Psi compression on the 1978 Evinrude model 115899C refers to the pressure measurement in pounds per square inch (psi) within the engine's cylinders during a compression test. This measurement indicates the engine's health and efficiency, with typical compression readings for a well-maintained outboard motor ranging between 90 to 120 psi. Low compression may signal issues such as worn piston rings or cylinder damage, affecting engine performance. Regular checks can help ensure optimal operation and longevity of the motor.