Inspect Spark Plug

Disconnect the ignition coil connectors (A).

Fig 1: Ignition Coil Connectors
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NOTE: When disconnecting the ignition coil connector, pull out the locking pin (A) and then pull out the connector while pressing the clip (B).

Fig 2: Pulling Out Locking Pin & Ignition Coil Connector
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Remove the ignition coils (A).
Tightening torque:

3.9 ~ 5.9 N.m (0.4 ~ 0.6kgf.m, 2.9 ~ 4.3 lb-ft)

Fig 3: Ignition Coils
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Using a spark plug socket, remove the spark plug.
CAUTION: Be careful that no contaminates enter through the spark plug holes.

Inspect the electrodes (A) and ceramic insulator (B).

Fig 4: Spark Plug Electrodes & Ceramic Insulator

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INSPECTION OF ELECTRODES

Condition	Dark deposits	White deposits
Description	Fuel mixture too rich Low air intake	Fuel mixture too lean Advanced ignition timing Insufficient plug tightening torque

Check the electrode gap (A).
Standard value:

1.0 ~ 1.1 mm (0.0394 ~ 0.0433 in.)

Fig 5: Checking Electrode Gap

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