spark plug problem - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 4 (permalink) Old 09-04-2009, 10:22 AM Thread Starter
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spark plug problem

i just changed my spark plug caps and now i experience this clicking noise coming from the front left cap. i let the bike run and looked inside and see an arc spark contacting the engine where the plug goes inside. i pulled the cap off and put it back in to ensure it was in all the way and tightened the spark plug to make sure it was tight. i then started the bike and still have the same problem. the engine is not misfiring or anything but want to know how to fix it. what could it be? thanks-tim
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post #2 of 4 (permalink) Old 09-04-2009, 10:30 AM
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First thing I'd do is give the wire & boot a thorough check for any cracks/splits.


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post #3 of 4 (permalink) Old 09-05-2009, 12:25 AM
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Quote:
Originally Posted by fiendclub36 View Post
i just changed my spark plug caps and now i experience this clicking noise coming from the front left cap. i let the bike run and looked inside and see an arc spark contacting the engine where the plug goes inside. i pulled the cap off and put it back in to ensure it was in all the way and tightened the spark plug to make sure it was tight. i then started the bike and still have the same problem. the engine is not misfiring or anything but want to know how to fix it. what could it be? thanks-tim
Did you install new caps AND wires or just new caps on the old wires?

X2 to hypers suggestion. Sounds like bad insulation to me.

Then, if you still have the old wire and cap, swap it back in and see if it sparks too.

You have two plugs in each cylinder, so even if one is not firing, you would not likely notice much difference in performance, IMHO.

Gordon

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Last edited by OlHossCanada; 09-05-2009 at 12:32 AM.
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post #4 of 4 (permalink) Old 09-13-2009, 10:46 AM
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New bad cap or a broken spark plug.
Did you use 5000ohm caps ?
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