Title: Describe the operation of intake and exhaust valves.
Course: Small Engine Repair (20110-36) > Section: Servicing Valves on Four-Stroke Engines

Description should include

- identifying the type of valve (intake or exhaust)
- identifying parts of a valve train
- explaining the operation of valves and valve parts
- explaining the importance of timing to valves.

Process/Skill Questions:

- What is the function of the intake valve?
- What is the function of the exhaust valve?
- When are the intake valves and the exhaust valves both closed? When are they both open?