Visual inspection
WARNING: This page is about a different car, the 2004 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
- Inspect the following items:
- If there is any malfunction, replace the spark plug.
- Insulator breakage
- Worn electrode
- Damaged gasket
- Badly burned insulator (sparking side)
Courtesy of MAZDA MOTORS CORP.