89 ramcharger with a carb magnum swap. The yellow ignition wire is supplying 6v in run, 12v in start, and 6v again back in run. This is causing the bendix gear on the starter to stay engaged to the flywheel after the motor is running. I am completely out of ideas here. Why in the heck is the ignition wire not dropping to zero in the run position? Any advice would be greatly appreciated.