| Diagram | Fig. 31 — CARBURETTER, T90 AND T100 · ref 2 |
| Subsystem | fuel |
| Listed in parts books | 1964–1967 |
Mixing chamber, 1 in. choke
Amal carburetor mixing chamber body, 1 in. choke, for T90/T100 family carburetors.
This is the mixing chamber body for an Amal carburetor, sized to a 1 in. choke. The mixing chamber is the main body of the carb that holds the throttle slide and needle jet assembly - it's the core casting that everything else on the carburetor bolts to or slides into. Ed's shop lists this one under Amal's own numbering, and it turns up across the T90 and T100 carburetor figures in the parts books.
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If you're rebuilding an Amal carb on one of these smaller unit twins, this is the part you'd be sourcing if the original mixing chamber is worn, scored, or cracked - which happens over time from years of a slide moving up and down inside it. Since it's the core casting, get the choke size right before you order, because it has to match the rest of your carb internals.
The catalog entries span the mid-1960s across a handful of appearances, all tied to the T90 and T100 family of carburetor listings. Check the number against what's stamped on your existing carb body before ordering to make sure it's a clean swap.
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