Spark Plug: Testing and Inspection

CAUTION:
- Be sure to follow the instructions shown below. Otherwise, the platinum electrode can be damaged.
- Do not use a wire brush to clean the electrode.
- Use a plug cleaner for a maximum of 20 seconds and air pressure below 588 kPa {6.00 kgf/sq.cm, 85.3 psi}.
- Do not adjust the plug gap.