The stator from the Tra12D is NOT interchangeable with the 14 horse.
Have you had the flywheel off? You can easily tell if the stator is original or "overnight solution".
Also you can check to see if the wire from the stator has rubbed on the flywheel and is grounding out. This can and has happened, I know.
Judging by the length of the mystery white wire I would say it went to the back of the dash and connected to the secondary switch.