Removal and Installation

CAUTION: Before removing spark plugs, check around each plug for debris that will fall into combustion chamber when plug is removed.

1. Be sure ignition switch is OFF.
2. Carefully remove ignition wires from spark plugs.
3. Remove spark plugs.

Checking Spark Plug For Wear, Damage, Or Deposits:

4. Check gap of new plugs and refit. Gap should be 0.9 mm (0.035 in)

NOTE: Field experience has shown that a plug gap of 0.040 - 0.042 in will give a better idle condition in many instances of poor quality idle.

5. Tighten plugs to 23 - 28 Nm (17 - 20 lb ft)
6. Refit ignition wires securely.