POP and Spark when killing the engine

Discussion in '2-Stroke Engines' started by Poodlebombs, Oct 13, 2007.

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  1. Poodlebombs

    Poodlebombs Guest

    So I was out for a ride last night, at the tail end of my break in period, and as I'm coming in I hit the kill switch and the motor sounds like its killing, but then suddenly doesn't go all the way out.... so I hit it and hold it down this time, and it goes out... but not before a huge POP and spark below me. It looked like it was in the exhaust, but I'm not positive as it happened so quick. Any ideas how/why this happened?

  2. HI

    Kill switch was probably not grounding out completely...have to make sure you have a good ground to kill the engine quickly...The pop and "spark" you saw was probably a backfire
    (because of the slow engine kill)....Spark was the flash of gases caused by the backfire...

  3. OldPete

    OldPete Guest

    Prolly a intermittent ground at the kill switch sent a surge into the secondary causing a spark late in the power stroke...hence a loud bang. A loud bang could break a bit of carbon loose and set it aglow...hence a lightening zap in the exhaust along with the bang.
    My guess anyhoo given what you offered.
  4. ourhearts

    ourhearts Guest

    sounds like the flux capacitor.
  5. Poodlebombs

    Poodlebombs Guest

    thanks guys. ill check out the wire ground.

    My flux capacitor has a poodle in it.
  6. azbill

    azbill Active Member

    change it to a standard from a teacup, and you'll get more torque :lol: