1994 Johnson/Evinrude "ER" 60 thru 70 outboards Service Manual, Page 251Get this manual
Running Test, Alternator OutputAll Models Disconnect battery cables before proceeding with this check1Remove the rectifierregulator red lead from the battery side of the starter solenoid2Wire to 40 amp ammeter in series with the rectifier regulator red lead and the battery side of the starter solenoid
1500 2500 3500 4500 5500
IIIIIII
ill coming in contact with engine ground while the engine is
runningContact may cause arcing
'" Guard against any red wire, its terminals, or the ammeter