1995 Johnson/Evinrude Outboards 25, 35 3-Cylinder Service Manual, Page 264Get this manual
5Connect 12-volt source to the relay "S" terminalsUse an ohmmeter calibrated on high ohms scale or continuity light to test for continuity on relay terminals "B+" and "Mil rn
The meter must show continuity
6Leave the 12-volt source connected to the "S" terminalsConnect meter leads to relay terminals "B-" and "M" The meter must show no continuity