1993 Johnson Evinrude "ET" 60 thru 70 Service Manual, P/N 508284, Page 132Get this manual
STEPRUNNING OUTP.UT TEST
1Twist and remove all primary leads from ignition coils
.atwist to install Stevens Instrument NoTS-77 terminal extenders, or equivalent, r,&12on Ignition coli pnmary postsr,&13Install primary leads on terminal extendersObserve proper wire routingConnect orangeblue lead to No.1, orangepurple lead to No.2, and orangegreen lead to No.3INotel Route all tester leads so they do not interfere with moving engine parts4Set peak-reading voltmeter to "POS" and "500"r,&15C.onnect voltmeter red lead to No.1 terminal extenderConnect meter black lead to clean engine ground