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DO THE TON Sponsors => Bison Motorsports => Topic started by: reichertripper on Jun 04, 2017, 22:53:07

Title: Honda CM 400 Spark at only one plug
Post by: reichertripper on Jun 04, 2017, 22:53:07
81 honda cm 400 only gets spark in one plug wire when the other plug wire is grounded to bike... both plugs wont fire. I dont understand it got any ideas??
Title: Re: Honda CM 400 Spark at only one plug
Post by: CGRAM on Jun 06, 2017, 20:25:41
81 honda cm 400 only gets spark in one plug wire when the other plug wire is grounded to bike... both plugs wont fire. I dont understand it got any ideas??
Sounds like the CDI box. Lots of time they test out good with a light but not give a spark.


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