engine hesitant to start and backfiring through carb

Discussion in '2-Stroke Engines' started by DJEEPER, Aug 7, 2009.

  1. DJEEPER

    DJEEPER Member

    Well, my first real issue.....

    Today, when i went to start my bike, i followed my standard procedure. turn the gas on, hold the prime button for about 3 seconds, then tap it about 3 times. choke to 1/2-2/3. pull....pull...pull...pull *POW!*...and smoke around the carb.

    It did this about 4 times before i got it started...and when it ran it was sputtering and hit/miss. If i let it run for a few seconds with some throttle, it seems to clear up a little bit and will run fine.

    Do you think i have some trash in the filter? maybe in the carb?


    what would cause it to backfire like that?
     

  2. Just_Gasit

    Just_Gasit Member

    Hmmm, check the spark plug. Almost sounds like a timing issue. Unlikely but maybe the magneto magnet nut is loose or slipped on the shaft? Check the plug first though.
     
  3. DJEEPER

    DJEEPER Member

    plug was wet...as if it wasnt sparking.

    i found something interesting though. The 4 tooth pull start catch that bolts to the magnito was slightly bent and rubbing on the bolt for the magnito. Metal shavings were in the compartment.

    I am going to buy a new pull start assy. to see if it helps.
     
  4. DJEEPER

    DJEEPER Member

    BAD SPARKPLUG!

    found the problem :)
     
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