LEMON Manuals
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Mazda
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2007
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3 Mazdaspeed, 2.3 M
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Repair and Diagnosis
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Engine Performance
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Ignition System
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Ignition System (L3 With TC)
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Spark Plug Inspection
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Visual Inspection
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Visual Inspection
Inspect the following items:
If any of the following malfunctions are indicated, replace the spark plug.
Insulator breakage
Worn electrode
Damaged gasket
Badly burned insulator (sparking side)
Fig 1: Identifying Spark Plug Inspection Points
Courtesy of MAZDA MOTORS CORP.