Spark Plug Cleaning

Sufficiently apply the brake cleaner to the plug end.

NOTE: Repeatedly applying the brake cleaner is acceptable during the cleaning.

Using special tool spark plug brush (MB992273), intensively clean the electrode for 1 to 2 minutes.
NOTE: Even if using strong force, the electrode is not damaged.

NOTE: In case of insufficient cleaning, it is permissible to take longer than 2 minutes for cleaning.
After the cleaning, sufficiently remove and then dry both of the carbon and the brake cleaner on the plug, using a waste cloth or air blowing.

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.