Service should include using proper tools and following manufacturer's specifications and instructor's guidelines to
- select the appropriate spark plug
- remove and replace the spark plug
- inspect for fouling, wear, and a damaged insulator
- verify/adjust the air gap
- perform a spark test with a spark tester.
Process/Skill Questions:
- What measuring tool is used when installing a spark plug?
- How would one determine proper torque specification when installing a spark plug?
- What conditions would require replacement of a spark plug?