1997 Johnson Evinrude "EU" 40 thru 55 2-Cylinder Service Manual, P/N 507265, 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: fueloil mixture is required in the fuel tankINotel Models equipped with the optional AccuMix injection
system will require 50:1 fuel oil mixture in the fuel tank in addition to the lubrication supplied by the AccuMix injection 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
INote To be used if engine's
is not desired
or AccuMix injection system
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(00
m Portable tankAbove and below 32 Fof oilAdd one gallon e), add (4 litres) of fuelPour in required amount remaining