Title: Evaluate the operation of a carburetor.
Course: Small Engine Technology I (20110-I) > Section: Diagnosing and Servicing the Fuel System

Evaluation should include the examination of accessible parts for function and damage, according to manufacturer’s specifications. Parts include

- idle circuit
- main circuit
- choke system
- purging or priming system
- high-speed nozzle
- emulsion tube
- orifice jets.

Process/Skill Questions:

- What is the difference between high-idle circuits and low-idle circuits?
- What is the difference between an adjustable carburetor and a fixed-jet carburetor?
- How does fuel quality affect engine? performance?