1、Remove the screws on the left and right decorative cover then take it out.
Use a wrench to remove the motor nuts and gaskets on both sides.
2、After remove the motor, press the air nozzle to release the air from the tire, and then remove the hubcap of the motor and separate the type from the motor.
3、Get the new inner tube replaced, put it together according to the steps of disassembly, inflate the type.
4、Finally install the motor, put the gaskets on the motor shaft on both sides correctly and then lock nuts tightly, the decorative cover last.