Suddenly, no spark....

Discussion in 'Whizzer Motorized Bicycles' started by m3456y, Mar 4, 2014.

  1. m3456y

    m3456y New Member

    I just finished advancing cam, took the bike out for a ride - it was running great, then it just shut off and I have not been able to find the problem. I checked the switch wiring on the handlebar and key and it seemed to be fine. Any ideas?

  2. keatonx

    keatonx Member

    Make sure there's not a tiny sliver of carbon between the electrode and ground strap on the plug that's grounding it out
  3. m3456y

    m3456y New Member

    Yes, pulled plug and it looked fine. I had it out when I checked for spark.
  4. m3456y

    m3456y New Member

    One of the advantages of having a Whizzer owner next door....swapped out the coil and now have spark. Very strange though to have a coil suddenly fail within minutes of starting the bike, I think.