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post #2 of (permalink) Old 09-30-1999, 10:26 AM
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Join Date: Sep 1999
Location: Southeast Iowa
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Re: Exhaust Backfire?

[img]/wwwthreads_images/icons/crazy.gif[/img] Just a crazy thought, but I suspect that what is happening is that enough air is getting into the system up front that it is allowing for combustion in the header and muffler. By chance is this a 304 with the air pump? And if so, is the diverter valve working? [img]/wwwthreads_images/icons/tongue.gif[/img]

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