1992 Johnson Evinrude "EN" 40 thru 55 Service Manual, P/N 508143, Page 332Get this manual
f51 4termmals ohmmeter on appropriate scale and connect the leads to the two relay "S" Switch
To avoid immediate meter damage, never apply an ohmmeter to an electrical circuit where voltage is present The meter must show 70-100 ohms
f61 5Connect 12 volt source to the relay "S" terminalsUse continuity light, or ohmmeter calibrated on high ohms scale (or continuity scale) to test for continuity on relay terminals "8+" battery and "M" motor The meter must show continuity1,17 6Leave the 12 volt source connected to the "S" terminalsConnect meter leads to relay terminals