1987 Johnson/Evinrude CU Outboards 35A thru 55 Service Manual, Page 44Get this manual
Running an engine on leaner than recommended fueloil mixture may result in powerhead damageAvoid the use of the following as they could damage your engine and or shorten spark plug life: Automotive oils Premix fuel of unknown oil quantity Premix fuel richer than the recommended ratio Oil and gasoline leaner than the recommended ratio
Some additives in Evinrude Johnson Outboard Lubricant and OMC Cycle Motor Oil are subject to evaporation Always cover partially filled containers to prevent deterioration of lubricant
FuelOil Mixing Instructions
INote To be u.sed if
VRO or AccuMix automatic oiling
not deSired
Gasoline is extremely flammable and highly explosive under certain conditionsAlways stop engine and do not smoke or allow open flames or spark near the boat when refueling or changing fuel tanksAlways mix in well ventilated area Pour approximately gallon (4 litres) gasoline into tank and add required lubricantReplace filler cap securelyThoroughly mix by shaking tankAdd balance of gasolineBuilt-in tanksTo prevent static spark, use large metal filter funnel as shown in figureThe fuel nozzle must contact the metal funnel when filling the tankTwo methods for refueling built-in tanks: Mix the lubricant slowly with the fuel as the tank is filled Using separate container, mix all the necessary lubricant with gallon (4 litres) of fuel and pour this mixture slowly with fuel as tank is filled