What is the way to clean up the carbon deposit in the spark plug?

The method of cleaning the carbon deposit on the spark plug: clean the air grille, the throttle and the burner every 4,000 to 8,000 kilometers, put the removed spark plug into a plastic or paper cup, and then spray it directly into the cup for 5 to 8 minutes, so that the carbon deposit on the spark plug can be safely removed without damaging the metal parts of the spark plug, which is safe and corrosion-free, thus improving the ignition performance of the engine and ensuring the normal operation of the engine. The function of the spark plug is to introduce the high voltage generated by the ignition coil into the engine cylinder and generate sparks between the spark plug electrodes to ignite the mixture.