1990 Johnson Evinrude "ES" 60 thru 70 Service Manual, P/N 507873, Page 23Get this manual
High Performance Any recreational engine, when used for high performance, requires 50: fueloil mixture in the fuel tank along with the VRO$ system If the system is not used, 25: fueloil mixture is required in the fuel tankSevere Service The fueloil ratio remains the same when equipped recreational engine is used in commercial, rental, or extended severe serviceNo special consideration is necessaryFuelOil Mixing Instructions INotel To ?e used if engine's deSiredautomatic oiling system is not
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 areaPour approximately gallon (4 litres) gasoline into tank and add required lubricantReplace filler cap securelyThoroughly mix by shaking tankAdd balance of gasolinefilter 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 container, mix all the necessary lubricant with gallon (4 litres) of fuel and pour this mixture slowly with fuel as tank is filled