| Diagram | Fig. 7 — CARBURETOR T140E · ref 2 |
| Subsystem | fuel |
| Listed in parts books | 1979–1980, 1983 |
2928/064 Mixing chamber top
Mixing chamber top for the Amal Mk II Concentric carburetor, fitted to T140E/T140D Bonneville carbs.
This is the mixing chamber top for an Amal Mk II Concentric carburetor, the cap that fits over the top of the carb body and houses the throttle slide and cable connection. On the Mk II Concentric it's a common wear and replacement item since it takes the cable pull and slide movement every time the throttle's worked.
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The catalog shows this part under Amal's own number 2928/064, and it appears in the parts books for the T140E and T140D Bonneville fitted with the Mk II Concentric carb. Amal later renumbered this same piece to 2928064M, so if your parts book or an old carb rebuild kit lists that number instead, it's the identical component.
If you're rebuilding a Mk II Concentric top end, it's worth checking the condition of the slide bore in this cap along with the cable adjuster threads before you put it back into service.
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