1970 Johnson 115 HP Outboard Motor Service manual, Page 39Get this manual
Pull spark plug leads off before proceeding with step 3-bIt Is possible to fire any fuel left in cylinders after step 3-a
bIf neon lite doesn't flickerconnect test sensor into the pulse pack plug and bridge18-9 terminals as illustratedWith key switch ON, activate test sensorNeon lite should flickerIf neon lite doesn't flicker, replace pulse packIf neon lite does flicker, test sensor circuitNOTES- 70 neon test light availabl from Stevens Experimental Co2015 WGrand Ave Waukegan, lli60085