1997 Johnsoon Evinrude "EU" 50 thru 70 3-Cylinder Service Repair Manual, P/N 507266, Page 137Get this manual
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STEPRUNNING OUTPUT TEST
INotel Route all tester leads so they do not interfere with moving engine parts
4 Set peak-reading voltmeter to "POS" and "500"
5 Connect voltmeter red