1995 Johnson/Evinrude Outboards 40 thru 55 2-Cylinder Service Manual, Page 135Get this manual
15 DR4256
STEPPOWER PACK OUTPUT TEST
To prevent accidental starting of engine while testing, twist and remove both spark plug leads
1Twist and remove primary leads from ignition coils2Connect No.1 ignition coil primary lead to Stevens Instrument load adapter NoPL-88 red leadConnect adapter black lead to clean engine ground
INotellf Stevens Instrument NoPL-88 is not available, you can make an adapter using 10-ohm, 10-watt resistor, Radio Shack No271-132, or equivalent