1997 Johnson/Evinrude EU 25, 35 HP 3-Cylinder outboards Service Manual, Page 273Get this manual
2 DR3950
Power Supply Troubleshooting
Before beginning this procedure: Charge battery and connect battery cables Turn key switch OFF, and remove key Remove clip from emergency stop switchAll tests are made from the RELAY SIDE of the trimtilt relay bracket
1Connect voltmeter black lead to clean engine ground2Check for voltage at battery side of starter solenoid: If no voltage, check battery and wiring If voltage, go to Step (or Step 10, if problem is only with tilt downtrim in)
UP CIRCUIT
3Mark UP and DOWN relays, and remove relays from relay bracket