1994 Johnson/Evinrude Outboards 40 thru 55 Service Manual, Page 118Get this manual
Power Test Do not exceed the coil's maximum specified amperage when testing it f41 The ignition coil is tested with "normal"
maximum specified amperage when testing itThe ignition coil and spark plug lead should be tested for leakage and insulation
failures using the ignition testerLeakage is caused by moisture, cracks, or holes in the coil housing or spark plug leadsr;;]
With the tester's small black and red leads still connected, remove the tester's high tension lead from the coilTurn on the