Spark Plug: Testing and Inspection
Spark Plug Inspection:
INSPECTION
Check the following points. If a problem is found, replace the spark plug.
^ Damaged insulation
^ Worn electrodes
^ Carbon deposits
^ Damaged gasket
^ Burnt
NOTE: If cleaning is necessary, use a plug cleaner or a wire brush. Clean the upper insulator, also.
Spark plug gap: 1.0-1.1 mm (0.040-0.043 in.)