welcome to JA,
I have seen a faulty ignition switch and a Cam position sensor cause this type problem. I would never have thought the cam sensor would do it. I would also check the battery cables on both ends for good clean connection and the chassis ground wire. A bad ground will cause this.
If this helped, an accept would be appreciated. If more help needed pleas ask.
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If more information is needed, please ask me.
Hope this helps, an accept would be appreciated.
Firsthogman
Love them Harley's

