You need to synch your ESCs. Each ESC needs to know the bottom and the top of the throttle stick on your transmitter. You can program each ESC indavidually through the receiver or all at once with the KK2.
When you do this
TAKE THE PROPS OFF
. I know I know I keep harping on that. I just dont want you to lose a finger.
http://www.youtube.com/watch?v=qAaO6lyN0HI
When you are done, all three motors should start at the same time.
I also find out that my KK wasn't on a flat plane. So i re-flashed the board , to make sure that all settings that i have done were delete.( KK is flashed with 1.17S2 pro by steveis)
Ok, i did it, now they spin at same speed.
After fixed all the thing I have tried these:
Props Off;Armed;Throttle on 25%;All the motor spins up at the same speed.
If i pull the copter forward the two front motor spins up
If i made the copter roll cw, the right motor spins up
If i made the copter roll ccw, the left motor spins up
If i pull it backward the rear motor spins up
If i made a yaw the servo counteract.
Could it be a good sign?