1989 Johnson Evinrude "CE" 9.9 thru 30 Service Manual, P/N 507754, Page 125Get this manual
171! STEPIGNITION PLATE OUTPUT TEST
To prevent accidental starting of engine while testing, twist and remove both spark plug leads
1Twist and remove primary leads from ignition coilsf7l 2Connect No.1 ignition coil primary lead to Stevens Instrument load adapter NoPL-88 red leadadapter black lead to clean engine groundfN=llf Stevens Instrument NoPL-88 is not available, you can make an adapter using 10 ohm, 10 watt resistor Radio Shack No271-132 or equivalent3Set peak-reading voltmeter to "POS" and "500
04 Connect PRV meter red lead to adapter red lead and meter black lead to clean engine ground5Crank engine and observe meter Meter must show 175 volts or higher6Repeat Steps thru for No.2 ignition coil primary lead If both primary leads have good output, test ignition coilsRefer to Ignition Coil Tests, Page 3-10 If one primary lead has no output, replace ignition moduleRefer to Ignition Component Replacement, Page 3-19 If both primary leads have no output, go to STEPCHARGE COIL TEST