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Thread: 200s high idle

  1. #1
    Join Date
    Mar 2010
    Location
    Pittsburgh
    --
    22

    200s high idle

    got my new junker 200s running today but it idles very high, took the needle and slide out of the carb
    it looks fine it did sit for a while, the idle screw does nothing, the throttle cable moves and returns to
    idle position fine but its like something is holding it open is it possible that someone put a cable that is too short? thanks in advance- mismatchtrike

  2. #2
    Join Date
    Jan 2003
    Location
    Southern MN
    --
    1,875
    Have you tried to adjust the threaded part on top of the carburator cap? There is a small lock nut you loosen, and in your case you would want to thread the longer adjustment in a little, to give a little more slack. Try it, and I bet it fixes it. Good luck!
    THE 80's RAGE! Currently owns:
    81, 85 Yamaha Tri Moto 125
    83 Yamaha Tri Moto 200 x2
    82,83 Yamaha Tri Moto 175 project
    85 Yamaha Tri Z 250
    84 Kawasaki Tecate 250
    84 Honda ATC 70
    85 Honda ATC 350X
    84 Honda ATC 250R
    (2) 84 Honda ATC 200x
    82, 83 Honda ATC 185s
    81 ATC 200
    Lots of other parts and bikes

  3. #3
    Join Date
    Jul 2006
    Location
    western ny
    --
    3,366
    agreed .. or you have a air leak in the intake somewhere . but most likely the cable needs adjusting ..
    down to parts because i no longer have a place to ride trikes.

    GIT IT RAAAGGGGG !!!!

  4. #4
    Join Date
    Mar 2010
    Location
    Pittsburgh
    --
    22
    thanks guys i'll try the adjustment I never knew it existed

  5. #5
    mike1979 is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
    Sep 2009
    Location
    Michigan
    --
    406
    My valves were out of wack on my 350x and she was idling very high. I would check the cable first though. There may also be and adjustment under the rubber boot by the thumb throttle if someone put a different thumb throttle on it at some time or another.

  6. #6
    Join Date
    Mar 2010
    Location
    Pittsburgh
    --
    22
    thanks for the advise the adjustment was all the way out I didn't know it was there due to the rubber boot.

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