1990 Johnson Evinrude "ES" 40 thru 55, P/N 507872, Page 257Get this manual

1990 Johnson Evinrude "ES" 40 thru 55, P/N 507872, Page 257

Running Test, Alternator Output
INote Disconnect
battery cables before proceeding with this

1Remove the rectifier red lead from the terminal board2Wire to 40 amp ammeter in series with the rectifier red lead and the wiring harness red lead
lllJlfflff I1000 2000 3000 4000 5000 6000

Guard against any red wire, its terminals, or the ammeter coming in contact with engine ground while the engine is runningContact may cause arcing

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