1992 Johnson/Evinrude EN 2.3 thru 8 outboards Service Manual, Page 29Get this manual
FuelOil Mixing InstructionsGasoline 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 ill
rv Portable tankPour approximately gallonReplace filler cap (4 litres) gasoline into tank and add required lubricant securelyThoroughly mix by shaking tankAdd balance of gasoline Built-in tanksTo prevent static spark, use large metal filter funnel as shown in figureThe fuel nozzle must contact the metal funnel when filling the tank
Two methods for refueling built-in tanks: Mix the lubricant slowly with the fuel as the tank is filled Using separate containermix all the necessary lubricant with gallon (4 litres) of fuel and pour this mixture slowly with fuel as tank is filled