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Home >> Mazda >> 2004 >> MX-5 Miata Base, Standard >> Repair and Diagnosis >> Engine Performance >> Tune-Up >> Ignition System >> Spark Plug Inspection [BP]

Spark Plug Inspection [BP]

  1. 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
    1. Plug gap 1.0-1.1 mm {0.040-0.043 in} 
    Fig 1: Inspecting Spark Plug
    G00989508Courtesy of MAZDA MOTORS CORP.