How to identify a Keihin FCR Carby

Discussion in 'The Garage' started by Young-Gun, Feb 4, 2013.

  1. Young-Gun

    Young-Gun KTM Tragic

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    I have two Keihin FCR carbs that I picked up second hand that I might like to fit to one or two of a couple of project bikes in the next year...

    My problem is this; I have no idea what model of FCR carbs they are and have no clue what bikes they came off. I'm told they're each off single cylinder KTM's.

    Does anyone have a link to a PDF carby identification guide or something similar? :ear
    #1
  2. wrk2surf

    wrk2surf on the gas or brakes

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    post a photo .. on this thread preferably mate
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  3. Young-Gun

    Young-Gun KTM Tragic

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    Will do in a few hours when I get home

    #3
  4. jar944

    jar944 Been here awhile

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    jetting specs, carb bore dia and fcr generation would narrow it down if you really want to know what model it came off of.
    #4
  5. Young-Gun

    Young-Gun KTM Tragic

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    I'm a novice when it comes to carbs, please could you elaborate how I'd determine these?
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  6. stainlesscycle

    stainlesscycle Long timer

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    there are basically 3 different fcr's. down draft, side draft, and mx. you most likely have the fcr-mx if they did come off a ktm 4t. put a pic up and that's about it - what are you trying to identify? which kind of fcr, or bore/etc? it's highly unlikely that you can just slap them on a random bike and they will work very well - prepare to change needle, pilot and main. possibly slide - all this stuff is cheap, except the slide...


    EDIT: somehow i was thinking pwk when writing this. i started writing about fcr, and switched midstream to pwk - i.e.e changes.. duh.
    #6
  7. Young-Gun

    Young-Gun KTM Tragic

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    Just over 40mm diameter, Code on bottom side : 19SA3 PB08

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    #7
  8. Young-Gun

    Young-Gun KTM Tragic

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    Diameter also just over 40mm

    Code on the side towards the bottom: 3925D ATC22

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    #8
  9. jar944

    jar944 Been here awhile

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    #1 is a first generation 00-02 ktms
    #3 is a third generation 07+ ktm
    #9
  10. Young-Gun

    Young-Gun KTM Tragic

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    thanks, I assume you meant #2 and not #3?

    Where did you get that information from, do you have a catalogue of different carbys or do you just know off the top of your head?

    I was hoping for someone to point me in the direction of some reference material so that I could look them up myself in the future or for anyone else who has a similar question that may find this thread in a search... anyone?
    #10
  11. jar944

    jar944 Been here awhile

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    I just know them off the top of my head
    #11