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Thread: drilling keihin jets

  1. #1
    torque's Avatar
    torque is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    drilling keihin jets

    long story short. just put a fresh top end in my spare 200x. 10.25 piston and a white bros cam .354 lift 276 degree mid range cam. it was jetted for a bassani and a 26ml carb with a 118 main. now with bigger cam i went to my jet kit. i thought i had a 120 main on the shelf, but i guess i don't. i need this bike for the weekend and i cant find any jets locally so here is my question.

    can i drill my 118 main one to to sizes bigger to get me by in a pinch?
    Last edited by torque; 03-28-2012 at 12:27 AM.

  2. #2
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    sure you can. but how do you know how much to drill it? in a pinch I would use a torch tip cleaning set and file it until it works for you rather than blindly drilling it

  3. #3
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    What he said!
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  4. #4
    torque's Avatar
    torque is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    i could not sleep tonight, thinking about this. so to my friendly google and found this site.

    http://www.affordablegokarts.com/Dri...ain%20Jets.php

  5. #5
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    I would get a good nights sleep and order some jets.. Bad idea,,but anything is possible! Good luck!
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  6. #6
    torque's Avatar
    torque is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    Quote Originally Posted by atc007 View Post
    I would get a good nights sleep and order some jets.. Bad idea,,but anything is possible! Good luck!
    might be a bad idea, but what do i have to loose. ive already ordered jets but i wont see them for at least a week.

  7. #7
    briano is offline Got The Holeshot Arm chair racerJust too addicted
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    I've drilled out jets with good results. I have a micro bit set from matco with a finger drill set up. You drill them by hand instead of an electric drill.

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