It depends on what engine you have on it but we wont go into all of that. I am assuming you probobly have a standard glow engine so you can reach behind the engine and pull the line that feeds the carb or pinch it until it shuts off (the same place you fuel it at) and WATCH THOSE HANDS. Most computerized radios have a cut switch on them that can be programmed to shut the motor off but dont worry with that right now.