1994 Johnson/Evinrude "ER" 60 thru 70 outboards Service Manual, Page 307Get this manual
TroubleshootingAmmeter Careful analysis of the electric motorhydraulic unit current requirements allows evaluation of the electric motor and certaih mechanical componentsThe spec,ifications contained in the chart are for static hydraulic testsDo not attempt to perform the following tests while the boat is under power
rv Red 14 gauge lead of the trim junction boxthe battery side of the starter solenoid and the 1Connect 0-60 amp DC ammeter in series between
f21 2Observe the ammeter and stopwatch while running the hydraulic unit through several complete cycles Range (0015) represents the engine's trim range Range (1665) represents the engine's tilt range3Compare your test results to the values listed in the chart for your specific motor style4As you interpret your test results, there are three basic possibilities low Current Drawcheck for: aLeaking valves bWeak relief valve springs cDamaged pump dLeaking a-rings High Current Drawcheck for: aPump binding bMotor binding cSticking valves dDamaged relief valve springs Normal Current Drawcheck for: aDamaged pump control piston bMalfunctioning check valve 5Refer to Page 9-56 for hydraulic unit and motor servicing information