I have a 8.5t with 1, 5 min qual on it and it now has a dead spot. It was in a LCG slash geared 18/84 on a large 1/8th track. I took it our of the truck and if I spin the shaft by hand sometimes it will start sometimes it wont. If it does run it is fine, as long as I dont let the motor stop spinning. What would cause this? Temp when it came off the track was 140 motor, 95 esc and like 70 battery. Did I over heat it? Sensor board bad? Any help will be great!