Please carefully check power devices and manual of car frame to ensure the power pairing is reasonable. Avoid wrong pairing to overload and damage the motor. Always wire up all the parts of the equipment carefully. If any of the connections come loose as a result of vibration, your model RC may lose control. Never apply full throttle if the pinion is not installed. Due to the extremely high RPMs without load, the motor may get damaged. Never allow the motor case to get 100 degrees Celsius (212 degrees Fahrenheit) because the magnets maybe demagnetized by high temperature.