Caution: This engine has aluminum cylinder heads. Do not remove the spark plugs from a hot engine, allow it to cool first. Removing the spark plugs from a hot engine may cause spark plug thread damage or cylinder head damage.
Note: Make sure that any water and/or debris is blown out of the spark plug holes prior to removing the spark plugs.
Caution: Refer to Fastener Caution in the Preface section.
Notice: Do not coat spark plug threads with anti-seize compound. If anti-seize compound is used and spark plugs are over-torqued, damage to the cylinder head threads may result.
Specification
The spark plug gap is 1.0 mm (0.040 in).
Tighten
Tighten the plugs to 20 N·m (15 lb ft).