1990 Johnson Evinrude "ES" Cross V 88 thru 115, 150 thru 175, P/N 507874, Page 113Get this manual
1411_ Ohmmeter TestKey Switch Note All ohmmeter tests must be performed with engine not running1Install the emergency ignition cutoff switch clip and lanyard2Disconnect 1-pin Amphenol connector between power pack and key switchf4l 3Calibrate ohmmeter on Rx100 scaleConnect meter leads between engine harness blackyellow lead and clean engine ground Key OFF, meter must show continuity Key ON, meter must show no continuity00
4If Step 3, Key ON reading shows continuity, disconnect harness blackyellow leads from key switch "M" terminal If meter now shows no continuity00