CM400 CB400 partial stator failure and unusual symptoms.

This bike had an issue where it would run perfect until it was hot and i shut it off, then try to restart it. Sometimes it would have spark, sometimes it wouldnt. When it didnt have spark id remove one spark plug boot and stick a piece of wire in it and ground it to the motor, then hold the start button and the other cylinder would fire...while its running on that one cylinder id take the boot thats grounded to the motor and plug it back into its spark plug and then both cylinders would run perfectly. Once I shut it off again and try to restart it id have the same issue again until it cooled down. Then back to square one where it might start it might not.
the stator checked out perfectly while the engine was cool as well as the CDI and the ignition coil. I was stumped until I pulled the flywheel. It must have been some kind of short circuit that only occurred when the motor was hot.

[@davidsmith4147]

Mine looked like yours did I cleaned it off hopefully it will fix my issue. Any updates on yours because mine would get spark then when I cut it off it wouldn’t start for days then magically it would. I chased my tail until I seen your video. Let me know if it solved your issue because i haven’t had a chance to turn mine over. Going to buy a new battery here in a few days… let me know something! Thanks tons