1998 Johnson Evinrude EC 5 thru 15 HP Four Stroke Service Manual, Page 110Get this manual
STEPIGNITION MODULE TEST
1Prevent accidental starting of engine while testing; twist and remove all spark plug leads
2Twist and remove primary lead from ignition coil3Connect primary lead to Stevens load adapter NoPL-88 red leadConnect adapter black lead to clean engine groundIf Stevens NoPL-88 is not available, you can make an adapter using 10-ohm, 10-watt resistor, Radio Shack No271 -132, or equivalent