poor performance

Discussion in '2-Stroke Engines' started by drukstanas, Feb 2, 2016.

  1. drukstanas

    drukstanas New Member

    i've riden it for more then 100 miles, but performance is still poor. Max speed is around 20 mph, if im riding it against wint it barely moves. Will performance improve later or i have to do something?

  2. Purple Haze

    Purple Haze Active Member

    You need to re-jet the carb, they're jetted too rich from the factory. If you have an NT carb, try playing with the needle height, they usually will run better with the clip raised to the top notch. For WOT the only fix is to install a leaner jet, (#70 is stock) depending on altitude (higher = leaner) a #64 should get you close. If running a CNS carb, remove and practice your best overhand fastball, then repalce with a better carb.
  3. crassius

    crassius Well-Known Member

    what he said, plus look for oil leaks near a bad gasket somewhere on motor
    sp1ke likes this.
  4. sbest

    sbest Active Member

    What he said, plus
    Lowering the float SLIGHTLY could be a help also.
    Mine does 35mph+ with no mods you couldn't do with handtools and sandpaper.

  5. sp1ke

    sp1ke Member

    ok these engines are terible for eating crank seals so definatly worth a check if it seems realy gutless but all gaskets are good !

    a tuned carb allways helps