1996 Johnson/Evinrude Outboards 8 thru 15 Four-Stroke Service Manual, Page 113Get this manual
1 DRC6336
STEPPOWER PACK OUTPUT TEST
& To prevent accidental starting of engine while testing, twist and remove both spark plug leads
1Twist and remove primary lead from ignition coil2Connect No.1 ignition coil primary lead to Stevens Instrument load adapter NoPL-88 red leadConnect adapter black lead to clean engine groundIf Stevens Instrument NoPL-88 is not available, you can make an adapter using 10-ohm, 10-watt resistor, Radio Shack No271-132, or equivalent
OJ 3Connect peak-reading voltmeter red lead to adapter red lead and meter black lead to clean