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Engine backfiring

Old Jul 28, 2010 | 02:22 PM
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olemissgrad
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Default Engine backfiring

Hello -- I own a 1997 Harley Dyna, my first HD. Bike is naturally cold-blooded but yesterday while in fifth gear, I noticed it missing (sputtering) and popping quite a bit. A fellow rider suggested the negative battery cable could be loose. Any other possibilities?
 
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Old Jul 28, 2010 | 02:24 PM
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tombeving
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From: cd. Obregon, Sonora, mx
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Check that your exhaust pipes aren't loose. This can cause popping.
 
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Old Jul 29, 2010 | 01:05 PM
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You could have a loose or bad plug wire. check the battery terminals to see if they are tight.
 
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Old Jul 30, 2010 | 08:59 AM
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Also check for an intake leak.
 
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Old Jul 31, 2010 | 07:53 AM
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Thanks, will check terminals today. Thing is, this only happens when I start off, then once it settles down, no problem.
 
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