I have searched and searched but am unable to find the answer or maybe just ask the right question I guess. So I will give you guys the whole setup to see if someone can point me in the right direction. A friend of mine bought a echine chinese quad and crashed it into a puddle. He put new motors and ecs and it fixed it. He gave me the old motors so I could build one. 2 still (worked) It was almost the same price to buy 4 motors than to just buy 2 new ones so I figured matching pairs was the way to go and purchased 4 new ones. My setup : 250 quad , Naze32, cleanflight (latest firmware as of today), skyrc 12A ESC, 2204 2300kv motors, power distribution board, r615x receiver and spektrum dx6e controller. Running PWM with 1 wire for each part on my receiver. I have 1 motor (always the back left motor #3) that will spin full speed 1/3 of the time, just twitch the rest of the time. I have swapped esc's with the same problem. I have swapped the flakey motor with the ones from my friend and same results.. I guess it is possible to have 5 bad motors.. 4 from a crash and 1 new one. Just seems unlikely. 1 other symptom??? If I full throttle the controller with no props attached. They turn off 1 by 1 until just 1 is spinning... The problem child one.. I have no where else to look. I have been working on this for over 2 weeks now. If there is anyone out there that can at least give me an idea of where to look I would appreciate it. Again I apologize if this is a common problem and has been answered before. Like I said I might not be asking google the right question. Thanks Bill
