1. Carburetor Cleaner
Fill a container with an appropriate amount of carburetor cleaner and soak the spark plugs in it for 30 minutes. Then, use a soft-bristled brush to scrub the head of the spark plug, which will remove the carbon deposits and dirt.
2. White Vinegar Cleaning
The white vinegar method is essentially the same and is even simpler and more convenient. However, it should not be used frequently due to its corrosive nature, which can affect the spark plugs. After removing the carbon deposits, be sure to thoroughly clean off the white vinegar from the surface of the spark plugs.
