1990 Johnson Evinrude "ES" 9.9 thru 30 Service Manual, P/N 507871, Page 107Get this manual
Power Test
o en testmg he COl1
Do not exceed the coil's maximum specified amperage
Connect 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
f4l The ignition coil is tested with "normal" polarity connections
A steady spark in the tester at or before maximum specified amperage indicates good coilRefer to Ignition Coil SpecificationsSurface Leakage Test