| Diagram | Fig. 29 — CARBURETTER, T100S, T100 AND T100C · ref 14 |
| Subsystem | fuel |
| Listed in parts books | 1968 |
NEEDLE EARLY CONCENTRIC
Jet needle for the early Amal Concentric carburetor used on 1968 T90 and T100-series Triumphs.
This is the jet needle for the early Amal Concentric carburetor, listed in the catalogs as 622/063. It's a fuel metering part that rides inside the carburetor body and works with the needle jet to control how much fuel gets pulled into the airstream as the throttle opens off idle.
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Catalog listings place this needle on the Concentric carburetors fitted to the T90, T100, T100C, T100T, and T100R, with the entries we have on file dating to 1968. If you're rebuilding one of these early Concentric carbs and the needle is worn, bent, or missing, this is the part to check against your carb's setup before ordering.
Give us a call if you're not sure whether your carburetor uses the early or later Concentric needle profile — Amal made changes over the years and it pays to confirm before you order.
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