Replace the plug at the specified interval or when the center electrode is rounded (A). Use only the listed spark plugs.

Spark Plugs
NGK:	ILZKR7B 11GS

Apply a small amount of anti-seize compound to the plug threads, and screw the plugs into the cylinder head, finger-tight. Then torque them to 18 N·m (1.8 kgf·m, 13 lbf·ft).