Title: Explain the operation of a carburetor and a fuel injection system.
Course: Small Engine Repair (20110-18) > Section: Repairing Carburetors and/or Fuel Injection Systems

Explanation should include an examination of accessible parts to explain and demonstrate how each fuel delivery system functions, the differences between the fuel systems, and how each system’s components function (e.g., fuel tank, fuel filter, fuel lines, fuel pump, carburetor, injectors, etc.).

Process/Skill Questions:

- What is the difference between a carburetor and a fuel-injected system?
- Where is the fuel-air mixture created in carburetor? How does the carburetor work in the fuel system?
- How do the fuel injectors work?
- Which system is more efficient? Explain.
- What are the symptoms of a bad fuel injector?
- What are the different types of fuel injection systems?
- How are electronic fuel injection (EFI) engines more efficient? Explain.