engine power loss

I had a minor crash (low speed, tips of a few props clipped off, no other visible damage). I did not fly it again right after the crash. I bought new props and some prop guards which I installed. Now, when I start the motors with the combination stick command, the rear starboard prop spins...

Hi all, First time poster looking for help on this! First let me describe the problem. I own a DJI Phantom 2 for about a year and I love flying it. This Christmas I did two things, I took the Phantom apart to paint it and to install a Fatshark Predator V2 FPV system on it. I painted the body...