1996 Johnson Evinrude "ED" 40 thru 55 2-Cylinder Service Manual, P/N 507124, Page 27Get this manual
High Performance Any engine, when used for high performance, requires 50: fueloil mixture in the fuel tank along with the VRO systemIf the system is not used, 25:1 fueloil mixture is required in the fuel tankINotel Models equipped with the optional AccuMix system will require 50: fuel oil mixture in the fuel tank in addition to the lubrication supplied by the AccuMix system, when used in high performance applicationsSevere Service When equipped engine is used in commercial, rental, or extended severe service, no additional oiling is necessaryFuelOil Mixing Instructions Note To be used if engine's system is not desiredor AccuMix automatic oiling &
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 areaPortable tankAbove and below 32 (00 e), add one gallon (4 litres) of fuelPour in required amount of oilAdd remaining fuelInstall filler cap and tip tank gently to distribute oil