truck ran yesterday stalls right before changing gear ........went to the hobby store to have it tuned bought a head and a roto start .......went home and installed all of it ( yes the bearing is in right ) took it back today to have it tuned ......the co&ksuc%er turned the black screw back to std then adjusted it to 5 turns out .....2 minute total 15 dollars later and i'm on my way got home to play won't start