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Visual Inspection

Inspect the following items:

Fig 1: Inspecting Spark Plug For Damage, Breakage, Burns, Wear And Carbon Deposits
Courtesy of MAZDA MOTORS CORP.
- If any of the following malfunctions are indicated, replace the spark plug.
  - Insulator breakage
  - Worn electrode
  - Damaged gasket
  - Badly burned insulator (sparking side)