This is emberassing, but I bought my first electric and it arrived yesterday (Extreme Flight Yak 47'). I built it last night and was surprised that my Torque motor didn't have any instructions. I figured out how the prop adapter went on the motor and continued with the build. Soon after, I realized that I couldn't get it off of the motor after tightening it. It seems to be pressed on very tightly and I cannot get it off. The motor came with three adapters, but I thoght they were for different prop sizes. Any advise would be of great help. Thanks!