Spark Plug: Adjustments
Spark PlugADJUSTMENT
Clean the spark plug with nylon brush, etc. Clean and remove the carbon or oxide deposits. If deposits are too stubborn, replace the spark plugs. After cleaning the spark plugs, measure the spark plug gap using a gap gauge.
NOTE:
- Do not use a plug cleaner.
- Do not use metal brush or it will wear insulator.