Its most likely the motor. Electric motors of this type are not meant to last a long time. You could try to get new motor brushes, but I doubt that would help much. You'll probably need a new motor. If you liked the photon motor (when it was working), you can get another [link=http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXAMC2&P=ML]here[/link].