1993 Johnson Evinrude "ET" 90 degrees CV Service Manual, P/N 508285, Page 119Get this manual
15 DR4053
RUNNING OUTPUT TEST
1Twist and remove all primary leads from ignition coils .atwist to install Stevens Instrument NoTS-77 terminal extenders, or equivalent, f.i51 2on Ignition coli pnmary postsf.i51 3Install primary leads on terminal extendersObserve proper wire routingConnect orangeblue lead to No.1 coil, orangepurple lead to No.2 coil, orangegreen lead to NO.3 coil, and orangepink lead to No.4 coilINotel Route all tester leads so they do not interfere with moving engine parts4Set peak-reading voltmeter to "POS" and "500"1151 5C.onnect voltmeter red lead to No.1 terminal extenderConnect meter black lead to clean engine ground6Start engine and run under load at RPM where ignition problem exists Meter must show 230 volts or higher7Repeat Steps and for remaining cylinders If one or more cylinders show low output, go to STEPCHARGE COIL TEST If one or more cylinders show no output, go to STEPSENSOR COIL TEST8Remove terminal extenders and install ignition coil primary leadsObserve proper wire routingConnect orangeblue lead to No.1 coil, orangepurple lead to No.2 coil, orangegreen lead to No3 coiland orangepink lead to No.4 coil