Remove, inspect, adjust, and install the spark plugs.

Process should include using proper tools and following manufacturer's specifications and instructor's guidelines to

• remove spark plug
• inspect for fouling, wear, and damaged insulator
• adjust air gap.

Process/Skill Questions:

• What measuring tool is used when installing a spark plug?
• How would you determine proper torque specification when installing a spark plug?
• What conditions would require replacement of a spark plug?