How to clean the carbon deposit in spark plug?

1. Find a glass container, put it in the spark plug, and pour in ordinary white vinegar that can fill the spark plug. Pay attention to the white vinegar, and then it will be fine.

2. Generally, if the carbon deposition is not serious, soak for 2-3 hours, and if it is serious, soak for 4-5 hours.

3. Time is up. Find a hard toothbrush and brush it a few times, and you will find that the stubborn carbon deposits on it have fallen off.

4. Dry the white vinegar, let it dry naturally for a while, and then you can use it, but don't rinse it with water.