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Shop/Category/Fig. 27 — CARBURETTERS – THROTTLE LINKAGE/Air valve
Air valve
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DiagramFig. 27 — CARBURETTERS – THROTTLE LINKAGE · ref 8
Subsystemfuel
Listed in parts books1973

Air valve

An Amal carburetor air valve from the throttle linkage assembly, cataloged under PN 99-1021 (also 622/062).

PN · 99-1021 / 622/062

This is an Amal air valve, part of the carburetor assembly that lives in the throttle linkage area of the fuel system. It's the small component that governs air passing through the carb body as the throttle mechanism is worked, and on an Amal setup it's one of the parts that keeps the mixture behaving correctly as you open and close the throttle.

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Our catalog record for this one is thin — it shows up once, tied to 1973 in the carburetor and throttle linkage figures, and the description doesn't go beyond naming the part. If you're chasing this for a rebuild, have your carb model and body number handy when you call so we can confirm it's the right air valve for what you're working on.

The alternate number 622/062 is the same physical part under a different number, so if that's what's stamped in your parts book or on your old part, you're in the right place.

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