A professional who repairs and adjusts motor vehicle carburetors. Respnsibilities include:

• Disassembles carburetors and gasoline filter units, using handtools.
• Examines parts for defects and tests needle valves with wire gauges and flowmeter.
• Cleans parts in solvents to remove dirt and gum deposits.
• Repairs or replaces defective parts.
• Reassembles carburetor and gasoline filter, and installs them in vehicle.
• Starts engine and turns adjustment screw to regulate flow of air and gasoline through carburetor, using testing equipment.
• May operate drill press, lathe, and other power tools to retap jets, ream throttle bodies and chokes, and machine seating surfaces of carburetor housings.
• May install and repair mechanical devices that convert conventional systems to use of other fuels.