watch out for setting the failsafe with brakes full on..I had a mechanic forget to disconnect the buggy battery after a race and so as soon as I shut of the handset it went to full brake failsafe position..Must have been 10 minutes b4 I got my car back after passing it through the control station by which time the servo had burned out completely..springs or rubber bands on the carb are much better ..or just make sure you always charge your batteries.