high idle

Discussion in 'Introduce Yourself' started by sb bikes, Aug 18, 2008.

  1. sb bikes

    sb bikes New Member

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    my 80 cc chines bike idles high . has any one else had this problem? I've adj carb but no luck .
     
  2. Norman

    Norman LORD VADER Moderator
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    Is your throttle cable adjusted a little bit too tight? there should be some free play in the twist grip before the throttle responds about 1/8" of free play is good.
     
  3. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    Check the carb to intake and intake to cylinder areas for leaks. Better yet, take them apart and seal them up with RTV on both sides.
     
  4. Brains

    Brains New Member

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    I had the same issue with one of my bikes a while back & the remedy to it was exactly as Norman suggested, the cable did not have enough free play in it so every time I moved the handle bars left or right the engine statrted to rev higher & I couldnt get my revs down with the idle screw, gave the cable some slack & it fixed the problem instantly
     
  5. Motoschwinn

    Motoschwinn Member

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    So you would adjust that at the top of the carb I would guess?
     
  6. misteright1_99

    misteright1_99 New Member

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    I would just screw the cable adjuster IN a bit on top of the carb, or you could also adjust it at the throttle if it is not already screwed all the way in...
     
  7. sb bikes

    sb bikes New Member

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    All hall Normam, thanks cable was adjusted too tight !! thanks again!!
     

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