I have a Tower RTF 40 Trainer now. My son brought it home after finding it in a trash pile. It had never been started, the motor is brand new. At first I could not start it, then apon close examination I determined that no fuel was getting to the engine, due to a solid (no passage) section in the factory installed fuel line! I can only imagine the fustration factor of it's original owner...perhaps he has taken up golf now.