1991 Johnson Evinrude EI 60 Loop V Models 150, 175 outboards Service Manual, Page 102Get this manual
Tests Using Ignition Analyzer When conducting these tests to the coil, do not exceed its maximum specified amperagePower Test r] Test the C.Dignition coil with polarity connections normal
Connect the analyzer's red lead to the coil's primary terminal 00Connect the analyzer's black lead to the coil's ground tab Connect the analyzer's high tension lead to the coil's high tension lead steady spark at, or before, maximum specified amperage indicates the coil is goodRefer to Ignition Coil SpecificationsSurface Leakage Test The ignition coil and spark plug lead should be tested for leakage or insulation failures using the ignition analyzerLeakage is caused by moisture, cracks, or holes in the coil housing or spark plug leads