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No sparks no fish

L

Lasergopew

New member
Hello everyone. New user. Will say I’ve looked at advice on here over yrs and fixed many of things. This time I need some help. Lol so to start. Evinrude 150 intruder. Model E150gleis. Took motor off boat and rebuilt whole boat like new.took about 4 months and motor ran top notch day I pulled into building to start rebuild. Removed all harnesses and cables all that.put back together and I’m getting no spark. Have already seen about kill switch and throttle position sensor. Tested for continuity through ground on motor and they are not grounded. Then I read about unplugging harness and cranking that way and disconnected the two black/yellow striped wires to pack. Still no spark. When just going over again I noticed my spark plug light was not blinking while cranking but I heard that click a spark makes. Looked down and seen arc jumping from metal ring On plastic handle of spark plug tester arcing from there to the engine block. I thought well I got spark I’m just shorting it so wrapped tape around metal ring. Tried again and no light flashing. I take it that spark going to metal ring was from engine still being grounded some how or a cracked piece of plastic. Trying to work out the obvious first. It is a boat though and something could have went wrong with it just parked. Any help would be great. I’m good with electronics and own nearly all tools I’d think would be required. Fish tourn on sat. Lol
 
Figured it out. Someone had an alternate route to dash spliced in with harness that actually terminated at my grounding for ignition. So didn’t matter if plug was pulled. Found a kill switch to hydraulic steering unit on motor. Two wires midway through hull is where they led to a mangled splice shorted together. Best guess is had another helm switch or something at some point that was tied in. Basically a random wire not supposed to be grounded to screw up under carbs then ran to somewhere in boat, and at some point I guess pulling new wires fish tape prob pulled them together.
 
Thanks for the report. For me, when diagnosing electrical problems, I start first with signs of previous work, especially things covered with heat shrink, or black tape.
 
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