1971 Evinrude StarFlite 100 HP Outboards Service Repair Manual, PN 4753, Page 38Get this manual
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C.DIGNITION TROUBLE SHOOTING (USING THE S-80 NEON TEST LITE)
I NTERMITTENTL GROUND TO POWERHEAD
SET OHMMETER ON LOW OHM SCALE
VOLTMETER
FUSE HOLDER BREAKER