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Throttle Hanging.

Discussion in 'Tech' started by rowe748, Jun 18, 2010.

  1. rowe748

    rowe748 Well-Known Member

    I bought my gf a little yamaha sr250 and ever since we brought it home its had a problem with the rpm not dropping till you blip the throttle a few times (and even after blipping sometimes the rpm still will not drop). I took apart the carb and cleaned everything out but the problem still persists. The throttle cable is working fine so that's not it. I'm not sure what to do next and i'm trying to avoid bringing it into the dealer. Any suggestions?
     
  2. fastfreddie

    fastfreddie Midnight Oil Garage

    air leak.
     
  3. rowe748

    rowe748 Well-Known Member

    it has some small cracks but doesn't look all that bad.
     
  4. fastfreddie

    fastfreddie Midnight Oil Garage

    spray some contact cleaner or ether on the boot while the bike is running. if there's a leak, you'll know. the engine will pick up rpms.
     
  5. rowe748

    rowe748 Well-Known Member

    alright thanks ill try
     
  6. Tunersricebowl

    Tunersricebowl Fog, onward through.

    You can also spray some non-flamable brake cleaner, it will make the engine slow down or stall..
    In any case the change indicates a leak..
     
  7. rowe748

    rowe748 Well-Known Member

    I feel dumb for not checking sooner but the previous owner had the idle screw jacked up way to high, i'm assuming to cure it from stalling because the carbs were dirty, but the bike runs great now. Thanks for the advice.
     

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