The Carter WCFB throttle valves are a type of throttle valve commonly used in carburetors. They are known for their durability and smooth operation. These throttle valves play a crucial role in controlling the amount of air and fuel mixture entering the engine, allowing for proper combustion and engine performance.

Secondary throttle valves are seated using .002” gauge that’s 1/4”, between the center lower edge of the throttle valves and bore of the carburetor. With the gauge in position and valve attaching screws loose, tap valve lightly so it will align itself in the bore, hold in position and tighten screws.

CAUTION: Turn screws only as much as needed to loosen valve as they are burred over and may break off if forced. If screws are to be removed, file off staked ends before loosening, then use new screws when reassembling.

NOTE: Primary valves are seated tightly in bore in the usual manner. No gauge is needed.