[lincpimp]

I did the same thing with a feigao, screws were too long and it did heat up very fast, plus my battery almost puffed! I tried shorter screws, but the damage was done and I had to replace the motor. I did it to a 7xl, but I am sure all of the motors would react the same. Hope that you did not kill the 9l, it is a great motor for that application!