1993 Johnson Evinrude "ET" 90 degrees CV Service Manual, P/N 508285, Page 96Get this manual
Power Test Do not exceed the coil's maximum specified amperage when testing itThe ignition coil is tested with "normal" polarity connectionsConnect tester red lead to the primary terminal of the coil and the tester black lead to the ground tab Connect the high tension lead of the tester to the coil spark plug lead steady spark, in the tester at or before maximum specified amperage, indicates good coilRefer to Ignition Coil SpecificationsSurface Leakage Test Do not exceed the coil's 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 leads Isl With