1971 Evinrude StarFlite 100 HP Outboards Service Manual, PN 4753, Page 38Get this manual
C.DIGNITION TROUBLE SHOOTING (USING THE S-80 NEON TEST LITE)
SET POI NTER ON 111
12 VOLT BATTERY AMPLIFIER
DEPRESS LOAD BUTTON
NEON TEST LITE BLUE GROUND TO POWERHEAD
I NTERMITTENTL GROUND TO POWERHEAD
SET OHMMETER ON LOW OHM SCALE