Thanks for chiming in racerone. I don't think it is overheating because it will run the rest of the day after that initial period of shutdown but I can definitely look into that. I haven't installed a new impeller but the stream is strong out of the back port. Carbs are all straight and were...
My motor has always seemed to starve at the top end but the last 3 outings, I get on a plane and am cruising along for about 5 minutes and I feel a bump or two and then it just shuts off. The first two times, it took over 30 minutes before it would start again and then it seemed to run okay...
