Engine Trouble Idle problems please

Discussion in '2-Stroke Engines' started by wan37, Jun 1, 2012.

  1. wan37

    wan37 Member

    I have a Z80 kit.It will fire right up but no idle it either revs real high or dies,it won't idle for nothing,it's a nt carb. Plus no mid range or wot when clutch is released.Please tell me where to start to solve this issue.I know the throttle slide is in there right.It could be a air leak but it won't idle low enough to check it.Thanks a bunch.

  2. The_Aleman

    The_Aleman Active Member

    It's most likely an air leak. These can be tough to get sealed. The split in the clamp that attaches the carb to the intake is usually the culprit.
  3. wan37

    wan37 Member

    Thanks AL ,I got and o ring in it.I guess I will use some seal all in it.Would it cause no power in the carb.I can get it to go but it take a real long time to build speed.I wish it just would idle right then I could fine tune it.
  4. vermhot

    vermhot Member

    You could have a bad crank seal or blown head or base gasket or even your intake gasket is leaking !!!!!!
  5. V 35

    V 35 Member

    One way to isolate air leaks, is to wet down the manifold, than try the engine. If the engine speeds up, water is sealing the leak.