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Old 03-20-2006, 03:16 AM
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Default 525sc no spark

I bought the boat in Nov, and it started up fine. I tried to start up my motor getting ready for the spring, but now I got no spark. I have current to the ignition module. Unfortunatley I don't have a wiring diagram, what are the colours of the cables connected to the coil and how is the module grounded?
Any advise are appreciated.

Thanks bl
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Old 03-20-2006, 05:32 AM
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Default Re: 525sc no spark

here you go
Attached Thumbnails 525sc no spark-pan036.jpg   525sc no spark-pan037.jpg  
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Old 03-20-2006, 05:38 AM
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Default Re: 525sc no spark

to check for sig to the coil; use a test light on the neg side of coil attach other end to batt +, should flash as you crank the mtr

to check for hot from ign switch check for current at coil+ with key on

Last edited by GOODT; 03-20-2006 at 05:47 AM.
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Old 03-20-2006, 05:56 AM
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Default Re: 525sc no spark

I don't think i'd be much help but can i buy your screen name.It fits me perfect.lol hope you fix your problem.
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Old 03-20-2006, 06:30 AM
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Default Re: 525sc no spark

Be sure the lanyard on the kill switch is attached!
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Old 03-20-2006, 08:20 AM
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Default Re: 525sc no spark

Troubleshooting schematic from Merc.
http://www.marinemechanic.com/site/page251.html
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Old 03-20-2006, 02:11 PM
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Default Re: 525sc no spark

Make sure that the black wire on the module is grounded well. Also, the actual module case MUST be grounded or you will not get spark.
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Old 03-20-2006, 02:32 PM
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Default Re: 525sc no spark

I had the same thing happen on one of mine after the boat sat for a couple of weeks. It turned out to be the small plug that goes into the ignition module. There was a small amount of corrosion on one of the prongs. Drove me crazy but I found it. It was cheap to fix too
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Old 03-20-2006, 07:06 PM
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Thumbs up Re: 525sc no spark

Originally Posted by flash32118
Be sure the lanyard on the kill switch is attached!
You have no idea how common that is!!

Good Post.
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Old 03-21-2006, 09:23 AM
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Default Re: 525sc no spark

Thanks for the feedback. Will continue checking later, it started snowing now....
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