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Thread: FCR 39mm carb for 500

  1. #1
    Join Date
    Jun 2011
    Location
    Bakersfield, California
    Posts
    4

    FCR 39mm carb for outlaw 500

    I have a keihin FCR 39mm for my 2006 outlaw 500 I was wondering if anyone has done this swap and what mods do you have? Also what are your jet sizes? Thanks
    2006 Outlaw 500
    K&N filter outerwear/box delete
    FCR 39mm mx carb jetted
    Trinity slip-on stage 4
    Pro armor nerfbars

    2007 Outlaw 525
    Stage two web cam
    Behive valve springs
    ported polished head
    K&N filter outerwear/box delete
    Duncan racing fatboy 4 full header/slip-on
    Procom CDI
    AMR coil
    When in doubt gun it!!!

  2. #2
    Join Date
    Jul 2004
    Location
    Detroit Lakes, MN
    Posts
    49
    I used to run one on my old Predator, which uses the same stock carb as yours, But mine was off of a KTM bike I believe, the predator carb to airbox tube was bigger than the outlaw, and the carb I used had a bigger bell on it that fit great. You may have to get an adaptor for the bell of your carb. I know DASA sells them for the guys who run FCR's on the 04/05 450R's. I think there are some adaptors on Ebay and stuff too, NOS maybe?
    I also had to have motion pro build me a throttle cable, but now days I'd bet a stock KTM engined Outlaw cable will get it done.

    As far as jetting, I don't recall exactly, but it was about a 185mj, and 48 pilot. I had a 558 kit, a Rath billet intake with the open K&N, and a Nicholas ported head. Hopefully that gets you in the ballpark.

    By the way, the FCR was one of the best mods I ever did to mine.
    "I WANNA GO FAST"

  3. #3
    Join Date
    Jun 2011
    Location
    Bakersfield, California
    Posts
    4
    Thanks for the info I actually bought the throttle cable from the KTM outlaw. Now I'm hunting down the carb spacer.

    I've also heard the carb swap was a huge improvement over stock.

    Next is a big bore kit just not sure which one.
    2006 Outlaw 500
    K&N filter outerwear/box delete
    FCR 39mm mx carb jetted
    Trinity slip-on stage 4
    Pro armor nerfbars

    2007 Outlaw 525
    Stage two web cam
    Behive valve springs
    ported polished head
    K&N filter outerwear/box delete
    Duncan racing fatboy 4 full header/slip-on
    Procom CDI
    AMR coil
    When in doubt gun it!!!

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