1995 Johnson/Evinrude Outboards 25, 35 3-Cylinder Service Manual, Page 242Get this manual

1995 Johnson/Evinrude Outboards 25, 35 3-Cylinder Service Manual, Page 242

RectifierRegulator Tests Variable Load Tests To test the operation of the rectifierregulator, you must be able to run the
the rectifierregulator red lead and the battery side of the starter solenoid 3Reconnect the engine's battery cables 4Following
the manufacturer's directions, connect the variable load tester (carbon pile) across the battery terminalsSteven's Instrument
Model NoLB-85 and Snap-on Model NoMT540D are examples of testers availableExcessive battery discharge rates might overheat
battery causing electrolyte gassingThis might create an explosive atmosphere5Start the engine and run it at approximately
4500 RPMUse the variable load tester to draw the battery down at rate equivalent to the stator's full output The ammeter
should indicate nearly full output12 amps 6Decrease the battery load toward zero amps Ammeter should show reduced outputAs