| Diagram | Fig. 29 — CARBURETTERS (Plate 22) · ref 30 |
| Subsystem | fuel |
| Listed in parts books | 1970–1974 |
Air valve guide sleeve (79-1037)
Air valve guide sleeve for Amal Concentric carburetors, guides the choke slide and spring inside the carb body.
This is the air valve guide sleeve for Amal Concentric carburetors, listed under the alias 79-1037. On the 900-series Concentrics it sits inside the body where the air/choke slide moves, guiding the slide and its spring so the choke action stays smooth instead of binding.
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It shows up across a wide run of Amal carburetor figures in the catalog, including the TR6R, TR6C, T120R, T140V and TR7RV listings, which tells you it was a common piece across those Concentric carb bodies rather than a one-off part for a single model.
It is a small, easily overlooked wear item, but if it is worn or missing the choke slide can stick or rattle in its bore. Worth checking when a carb comes apart for a rebuild.
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