Carburetor On 2004 T100

Discussion in 'Technical Help' started by grimthered, Dec 1, 2019.

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  1. grimthered

    grimthered New Member

    Dec 1, 2019
    6
    3
    Louisiana
    Just got a 2004 T100 and the carbs are pretty big for it, Keihin CR Specials, the fuel is running rich and there's a vacuum leak on one of the carbs. Any recommendations on smaller carbs for it?
     
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  2. Callumity

    Callumity Elite Member

    Feb 25, 2017
    2,105
    750
    Nr Biggar
    #2 Callumity, Dec 2, 2019 at 8:44 AM
    Last edited: Dec 2, 2019 at 8:51 AM
    Your bike would originally have been fitted with 36mm Venturi CVK carbs (constant velocity with 40/110 pilots and mains) rather than more performance oriented CR where the throttle directly lifts the slide. I assume you have other mods too that would influence the jetting?
    It is cheaper to fix what you have that source replacements. If your CRs are 35mm you are on the money. The larger 39s might be pushing it. Although the Venturi is smaller than on the equivalent CVKs they are less obstructive to airflow.
     
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  3. joe mc donald

    Subscriber

    Dec 26, 2014
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    Grimthered
    Welcome to the family. Do hit the upload a file button bottom right corner and let up see the steed.
    Regards
    Joe.
     
  4. Helmut Visor

    Helmut Visor Put on your big boy pants and man up
    Subscriber

    Oct 3, 2018
    2,182
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    Three Counties
    Howdy grimthered, and welcome in :cool::cool:
     
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  5. grimthered

    grimthered New Member

    Dec 1, 2019
    6
    3
    Louisiana
    Here's a picture of the Bonnie and the carbs

    78352776_531331060755818_1559198760536375296_n.jpg

    78836064_1206948629516405_1398592731994914816_n.jpg
     
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  6. joe mc donald

    Subscriber

    Dec 26, 2014
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    Real nice machine there. You got racing carbs on there. Don't know what else the bike has had like cams pistons filter and exhaust. But if it is race tuned it should go like lightning.
    Regards
    Joe.
     
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  7. Wishbone

    Wishbone Senior Member

    Nov 4, 2018
    419
    113
    Essex UK
    Get those dialled in to work with your bike, you will smile aplenty:cool:
     
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  8. joe mc donald

    Subscriber

    Dec 26, 2014
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    Grimthered
    Would run like stink; But only if the other bits have been done. They are for a racing bike. But surely if someone fitted them then they must have tuned the bike to accept them. And again they are not recommended for road use.
    Regards
    Joe.
     
  9. capt

    capt Noble Member

    May 8, 2016
    1,614
    450
    western Australia
    I rekon highly recommended for road use ! Even if the other work hasn't been done ! As long as they are jetted to suit that motor they will be fine !

    The only difference between race carbs and road ... The race carbs won't have very good idle/low throttle response/running ! As the attention to tune/setup is all related to higher/full throttle running ! But they can be fettled to run and work well enough for road use ! They would just have taken much more time getting there !
     
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  10. joe mc donald

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    Dec 26, 2014
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    Capt
    Yes anything can be set up to run. But is it worth the effort. Don't think you will get jets to sloe it down. Its illegal for road use. When you can just get a decent carb second hand and re jet it to perform cheaper.
    Regards
    Joe.
     
  11. Tricky-Dicky

    Tricky-Dicky Senior Member

    Dec 12, 2016
    797
    243
    Norfolk UK
    A vacuum leak and its still running richo_O if that is the case the pilot system is set up or jetted wrong .
     
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