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Thread: Back firing like mad

  1. #1
    So I have searched and not found what I am looking for...
    I have a 2006 that I just picked up. Took it out for a spirited ride today and it is back firing at all rpms in all gears when decelerating.
    Bike is pretty much stock but it has a Jardine CF exhaust. Everything else is as it came from the dealer. Bike has 4200 miles. What do I need to do? K&N and an ECM? It just seems off as of right now. I want this bad boy to sound clean.

    Thanks

  2. #2
    Senior Member
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    Mar 2010
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    1,298
    hose re-route

  3. #3
    Does this change anything with the CA model?

  4. #4
    Senior Member
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    not sure.

  5. #5
    Senior Member
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    my bike wa sbackfiri g and sputtering like crazy. i did the breather re route and changed to iridium plugs...runs like a raped ape now. smooth as hell.

  6. #6
    Jardines will pop on decel, your probably running lean running stock
    You could try the quiet insert also, may help

  7. #7
    Senior Member
    Join Date
    Aug 2008
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    5,146
    Yeah, the Jardine is most of the backfiring - like they said the Breather reroute may help some. Probably the best thing you could do is forget the K&N (since it's decel popping as it is) and flash the Race ECM settings to your bike for now. Later, if you still want the K&N, get a custom mapping or do some datalogging.

  8. #8
    So does the crank case breather mod have any differences on CA bikes? I have that huge pop can on the side of the bike as is.

  9. #9
    Senior Member
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    Mar 2010
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    pauly..why not get rid of all that BS CA emisssions BS first??

  10. #10
    I dont know how. Please tell me what is up. Maybe my search isn't working as it should.



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