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Discussion Starter · #1 ·
My wheeler atleast once everytime i ride it backfires sometimes pretty bad never can get it to do it myself just randomly and no certain time it does it just usually on decel but its an efi so thats whats concerning me and if its a problem id like to get it fixed before warranty/becomes bigger problem
 

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Need a little info on year, size and any mods done.
 

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Discussion Starter · #3 ·
umm no mods to anything 09 bf 750 efi
 

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Discussion Starter · #5 ·
Really? Must obv. b something right from factory cuz havent had it for but maybe 4 mnths.
 

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It could be a number of things really, no way for anyone here to just put a finger on it the first time.

Backfiring on decel is too lean or exhaust leak. The problem is finding out why it is too lean and what is causing it. The leak is easy enough to find.
 

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My buddies 08 was doing that, it was an exhaust leak on the rear pipe. Might start with the head pipes.
 
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