Visual Inspection
WARNING: This page is about a different car, the 2005 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.
- Inspect the following and replace the spark plugs if necessary.
- Damaged insulation
- Worn electrode
- Carbon deposits
- If cleaning is necessary, use a plug cleaner or a wire brush. Wipe the upper insulator.
- Damaged gasket
- Burnt condition
- Plug gap
Plug gap
1.0-1.1 mm {0.040-0.043 in}