My son has a 1998 speedfight 100, it has been running like clockwork but stalled on his way home from work, the battery has been charged up and the engine turns over using the electric start,the bike did start for a short time but now there is no spark at the plug. Has anyone else had this problem.
Try a new spark plug - failing that, look for faulty wire connectors that go to the ignition coil, and those that go into the magneto at the same time.
John
April 2009
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