1991 Johnson/Evinrude Models "EI" 40 thru 55 Service Manual, Page 316Get this manual
Routine Inspections 1Check reservoir fluid level at least once per season or every 100 operating hoursSystem capacity is approximately 11 .7 floz(345 ml) Tilt the motor and engage the trail lock levers Support the engine's weight with suitable hoist Remove the fill plug Add OMC Power TrimlTilt and Power Steering Fluid or GM Dexron I as needed to bring its level to the bottom of the fill plug threads Install the fill plug and torque to 45-55 in Ibs(5-6 Nm) Disengage the trail lock levers and the hoist Cycle the unit at least complete cycles to purge all air from the systemWhen cycling the unit, hold the trim switch ON an additional seconds after the unit reaches the end of its travel before activating the switch in the opposite direction