1998 Johnson Evinrude EC 50 thru 70 HP 3-Cylinder Service Manual, Page 139Get this manual
STEPPOWER PACK TEST
InTo prevent accidental starting of engine while testing, twist and remove all spark plug leads1Twist and remove all primary leads from ignition coils
2Connect No.1 ignition coil primary lead to Stevens NoPL-88 load adapter red leadConnect adapter black lead to clean engine groundRadio Shack No271-132, or equivalent
INote If Stevens NoPL-88 is not available, you can make an adapter using 10-ohm, 10-watt resistor,