No spark

  • mpduda509
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No spark

21 Aug 2010 16:53
#392829
My 1978 Kawasaki KZ650Sr Still has no spark just replaced the key switch and made huge progress but it is still not getting spark i pulled the points cover off and inspected the points they seem to be ok the bike has 9000 miles what could be the problem?

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  • Motor Head
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Re: No spark

21 Aug 2010 17:09
#392833
Got any power at the coils? Do you have a test light or DVOM?
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  • Patton
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Re: No spark

21 Aug 2010 19:52 - 21 Aug 2010 19:55
#392855
With ignition switch ON, can measure voltage at the dual connector supplying both coils. (See image below.)
The wire might be solid red instead of red/yellow.

How does this voltage compare to voltage measured across the battery terminals?

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Last edit: 21 Aug 2010 19:55 by Patton.

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  • darling741
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Re: No spark

24 Sep 2010 10:07
#401412
The spark plug caps at the end of the plug wires can go bad. I had spark on only one cylinder when I bought my 79 SR and found that three of the plug caps were bad.

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  • JR
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Re: No spark

24 Sep 2010 13:30 - 24 Sep 2010 13:31
#401473
Once upon a time I had a dead bug smeared across the contacts on the kill switch. No spark on any cyclinders.:)
I would suggest that you need to get a multimeter and trace back from the coils to find where you have voltage

You could also rig up a simple test light with a 12V bulb and some wire instead of a multimeter
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Last edit: 24 Sep 2010 13:31 by JR.

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