1991 Johnson/Evinrude EI 60 thru 70 outboards Service Manual, Page 294Get this manual
TroubleshootingPower Supply Before beginning this procedure, be sure: Key switch is OFF and emergency stop switch cap and lanyard are removed Engine battery is fully charged Engine battery cables are connected1Connect voltmeter Black lead to clean engine ground2Check for voltage at battery side of starter solenoid If voltage, go to Step If not voltage, check battery condition and connections
3Check for voltage at V2 If voltage, go to Step If no voltage, check engine harness Red 14 gauge lead
4Check for voltage at RedPurple leads on terminal strip If voltage, go to Step If no voltage, check engine harness RedPurple lead and engine harness 20 amp fuse
5Push trim switch DOWN and check for voltage at V4 If voltage, go to Step If no voltage, check trim switch and wiring