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Old 01-23-2010 | 12:37 PM
  #940  
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Chris Peralta
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Joined: Nov 2009
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Originally Posted by bigmack1971
I have a S7 with a jp-1 pipe it has been running great . I have put about 1/2 a gallon through it. Then today it started back firing ,only when is cold. After i warms up it dont do it anymore. The bottom end is still a little rich. Has a good smoke trail. Running temps are usely 210 . Any help would be helpfull.

Thanks Bigmack


Try a fresh glow plug first. If it's not getting hot enough to completely burn all of the fuel in the chamber that could cause it to backfire some.
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