| Diagram | Fig. 8 — CARBURETOR TR7RV · ref 20 |
| Subsystem | fuel |
| Listed in parts books | 1968–1970, 1976–1978, 1980 |
Float chamber (622/050)
Float chamber for Amal Concentric carburetors, factory number 622/050.
This is a float chamber for an Amal Concentric carburetor, catalog number 99-0506, cross-referenced to the Amal factory number 622/050. The float chamber is the bowl that bolts to the side of the carb body and holds the fuel supply that the float and needle valve meter into the main bore, keeping a steady fuel level for the jets to draw from.
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Our records show this part turning up across a wide run of Amal Concentric carb setups, including figures for the TR7RV, T140V, and earlier T90/T100 series carburetors. It's a part that shows up in a lot of different carb figures over the years, which tells you Amal used a common float chamber across a lot of their Concentric bodies rather than a bike-specific piece.
If you're rebuilding a Concentric carb and the float chamber is cracked, warped, or has a chewed-up gasket seat, this is the piece to replace. Check the fit against your actual carb body before ordering, since the parts book lists this same chamber across a number of different carburetor figures and years.
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