Bike now running extremely rough

Discussion in '2-Stroke Engines' started by stangkid, Oct 15, 2014.

  1. stangkid

    stangkid New Member

    I parked my bike for a few days, back tire blew. So I swap the intertube, and now when I tried to start it, it is making loud pop noises when running. It still runs, but every 2-3 seconds it loses power and pops loudly.

    Any thoughts?

    stock 80cc
    39tooth gear
    Used to run great

  2. butre

    butre Well-Known Member

    try cleaning the carb
  3. crassius

    crassius Well-Known Member

    also check for a loose wiring connection or bad spark plug cap
  4. jaguar

    jaguar Well-Known Member

    check for rat nests in your air filter.
    just kidding but if its not free-flowing then it makes your fuel mixture too rich. blow through and feel for resistance.
    plane your head and cylinder top using sandpaper on glass. (essential unless you like power loss)
    you might want to drain the gas tank and put in some fresh mix (after draining your float bowl)
  5. Heliobike

    Heliobike New Member

    Actually it happens due to the any impurity present or mixed with oil.Otherwise the engine problem.In my suggestions if you buy a bike then choose a best brand and which can never give any problem in future.If you want to buy the new motorized bicycle then simple go through the site and here you can get the best model with a better price.