Backfire When Starting

1 reply to this topic
  • Zeak

Posted May 12, 2009 - 07:11 AM


I have an '06 WR 450 with all the modifications. Sometimes when cold starting, there is a loud backfire. Any idea what this is?


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  • Thumper_Bloke

Posted May 12, 2009 - 06:13 PM


Its a perfect air-fuel mixture in the exhaust pipe, and gets ignited at the right time.


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