Model does not shift into high gear
Article #542365
  1. Servo not fully enaging the gear.
    Ensure that the servo pushes the linkage all the way into the transmission to fully engage second gear.
  2. Stripped transmission gears
    Replace damaged gears.
  3. Shift servo (channel 3) trim adjustment is improperly set
    The shift servo is set at the factory and should not require adjustment. If you have removed or replaced the shift servo, however, you may have to make trim adjustments.