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  1. #1
    axgrider73's Avatar
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    Identify my Keihins

    Can anybody tell anything about these carbs? I know that they are Keihin CDKII's, but where is the bar or bomb site that most carbs have inside of them? The have a sticker on the outside that says "watercraft race use only" They measure 44mm across the bottom.

    I am wanting to put them on my Ultra, and figured I would get a better response on the Polaris board.

    Any input is appreciated.

    -Rob
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  2. #2
    Rasta Mon Condoms We Be Jammin!!!!! TxVirageTx's Avatar
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    KEIHINS

    I Don't Remember Who It Was That Was Doing That,but The Booster Is Removed And An Annular Discharge Ring Is Inserted Around The Top,should Have Some Small Holes Around The Middle Of The Throat.they Were Also Opening Up The Bottoms Thats Why Its Got The Brass Looking Throttle Plates,i Would Imagine Some Jetting Like 95-100 For Pilots And 135 For Mains

  3. #3
    ph2ocraft's Avatar
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    There were a couple of guys doing it but I think you'll be hard pressed to find anybody better with the annular discharge Keihins than Art at Jet Works (Yes, the same guys that do the Jet Works valves).




  4. #4
    axgrider73's Avatar
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    Thanks guys,

    Will be any disadvantages to running these? Will they be harder to tune? How is the throttle response since they have no A/P? Should I look for a different set?

    I am trying to replace the slide type (cdcv) carbs that came stock on my ultra so I can run aftermarket F/A's and have better adjustability (not to mention that the carb kits for the cdcv's are $120 ea).

    Thanks again!

  5. #5
    ph2ocraft's Avatar
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    Take a peak at what he has to say about them.

    www.jetworks.net

  6. #6
    axgrider73's Avatar
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    Thanks Al,

    That is some great reading.

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