Having trouble with our motor. It has been stalling and not starting after. We have been having trouble most of the summer. It would run a few times then stall and not start. Wait and try the next day and it starts and runs a few times. We put the trigger/ stator on and it started up went around the pond and about 50 feet out stalled. Turned over but would not run. Tried several times. It turned over but would not start. Any ideas?