Originally Posted by
R1Joel
I use turnigy 5000mah 4s batteries. I'm not sure why it wouldn't have done it with the Futaba but it's doing it with the airtronics. I'm using castle mamba monster 1 and I'm not sure about the caps. I just tried a glitch buster I had and it made no difference. Getting annoyed

radios have been bad out of the box, even the high-end ones.
I would do a little elimination process first.
Borrow another MT4 or MT4s and keep the same rx, esc, battery, motor.
Then try another rx
then the ESC
then battery
then motor.
also where is the rx mounted? it should be as far away from the esc and motor as possible. one last thing are you running a sensored or unsensored motor?