| Diagram | Fig. 8 — CARBURETOR TR7RV · ref 18 |
| Subsystem | fuel |
| Listed in parts books | 1968–1970, 1975–1980, 1983, 1985 |
Float (622/069)
Float for an Amal Concentric carburetor, PN 99-0512 (factory number 622/069).
This is the float for an Amal Concentric carburetor, part number 99-0512, also carried under the factory number 622/069. The float lives inside the carb float bowl and rides on the fuel level, working the needle to shut fuel off once the bowl fills and letting more in as the engine draws it down. It's a wear item over time - the material can get brittle or start to leak fuel inside itself, which throws off the fuel level and causes flooding or a lean, hard-to-tune carb.
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The part shows up across a long run of Amal Concentric carburetor listings in our catalog, spanning Mk I and Mk II Concentric applications on both single carb and dual carb setups, including TR7RV, T140V, T140E, T90, T100S, T100C, T100T, and T100R carburetor figures. Given how many different carb variants call for this float, it's worth double-checking your specific carburetor before ordering, since Amal used more than one float design across the Concentric range.
If your parts book lists 622/069, that's the same float as this one - just a different number format in the record.
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