Thread: New engine - intermittent backfiring - stuck valve?
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Old 10-27-2020, 06:08 AM   #19
Patrick L.
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Join Date: May 2010
Location: Largo Florida
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Default Re: New engine - intermittent backfiring - stuck valve?
Haven't read all the comments, sooo,,,,

Try loosening the fuel cap if it hasn't been mentioned or you haven't done it.
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