1992 Johnson Evinrude "EN" 40 thru 55 Service Manual, P/N 508143, Page 136Get this manual
8 DR4249
STEPCHARGE COIL TEST
Ground Test
1Disconnect 5-pin Amphenol connector
2Set peak-reading voltmeter to "NEG" and "500"fjl 3Alternately, connect voltmeter between charge coil terminals and clean engine ground Refer to chart for terminal locationsCrank engine and observe meter reading at each connection Any reading on either test indicates charge coil or leads are grounded Locate and repair ground, or replace charge coil