66cc HT motor stalls at stops

Discussion in '2-Stroke Engines' started by bigtrucker2007, Sep 4, 2010.

  1. bigtrucker2007

    bigtrucker2007 New Member

    I got a HT motor a little while ago and i have had problems with it stallin at stops. the clutch is all the way disengaged when i stop but the bike dies. it seems like when its runnin on half choke its fine. any sugestions

  2. AussieSteve

    AussieSteve Active Member

    If it runs better with the choke on, then more than likely you have an air leak, usually where the carb mounts to the intake tube, but also possibly where the tube mounts to the barrel.
  3. bigtrucker2007

    bigtrucker2007 New Member

    i sealed all the carb mounts and nothings better more power though
  4. GearNut

    GearNut Active Member

    Have you tried adjusting the idle speed screw?
  5. bigtrucker2007

    bigtrucker2007 New Member

    yes I have and nothing it will stop and run at 1/4 throttle though
  6. GearNut

    GearNut Active Member

    What kind of carburetor does it have? I ask because it sounds like the slow speed mixture is too rich.
  7. bigtrucker2007

    bigtrucker2007 New Member

    the NT style carb
  8. cyops13

    cyops13 New Member

    Check inside the throttle housing and make sure you havn't worn through the plastic stop in the casing.Without it it is hard to get the bike to idle. I completely wore through mine AND ripped the throttle tube(very cheaply made) so I replaced everything with an old Suzuki throttle assembly.Runs great now.
  9. Lazieboy

    Lazieboy Member

    Check and clean plug with a wire brush. that worked for me once. foulderout
  10. GearNut

    GearNut Active Member

    What position is the slide needle clip in? You could try raising it one notch to lean out the mixture some. If you do this be sure to check the spark plug color after a 1/2 to 1 mile ride to ensure that it is not running too lean after the adjustment.
  11. motorpsycho

    motorpsycho Active Member

    adjusting the slide needle clip will not affect the mixture at w.o.t. so run it 1/4 to 1/2 throttle to make sure it's not too lean after you move the clip.
  12. GearNut

    GearNut Active Member

    Good point, motorpsycho.