Title: Identify cleaning procedures for exhaust ports and spark arrestor screens, 2-cycle engine.
Course: Basic Small Engine Repair (20109) > Section: Diagnosing and Servicing Exhaust Systems

Identification should include decarbonizing fluids and cleaning port with non-abrasive instruments.

Process/Skill Questions:

- What is a spark arrestor screen, and where is it needed?
- How is an exhaust port cleaned without putting carbon in the engine?
- How is a muffler cleaned without taking it apart?