1992 Johnson Evinrude "EN" 9.9 thru 30 Service Manual, P/N 508142, Page 27Get this manual
FuelOil Mixing Instructions
To be used if engine's AccuMix automatic oiling system is not desired
Lll der 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
'" Gasoline is extremely flammable and highly explosive un-
f1l Portable tankPour approximately gallon (4 liters) gasoline
into tank and add required lubricantReplace filler cap securelyThoroughly mix by shaking tankAdd balance of gasoline
t=I Lll filter funnel as shown in figureThe fuel nozzle must