| Diagram | Fig. 31 — AMAL CARBURETTER, TR6 & T120 · ref 5 |
| Subsystem | fuel |
| Listed in parts books | 1960–1962, 1964–1965, 1967 |
Spring
An Amal carburetor spring, part number 29/307, later superseded by 389/068A.
This is a spring out of the Amal carburetor, listed simply as 'Spring' in the parts book under 29/307. It shows up across a run of Amal carb figures for the 6T, T110, TR6, T120, T120R and T120TT, so it's an internal part of the instrument itself rather than something bolted to the frame or engine.
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The factory later renumbered this spring to 389/068A, so if you're working from a newer parts book or a carb kit and see that number, it's the same physical piece as 29/307. Worth checking your carburetor against the actual figure in your bike's parts book before ordering, since Amal used more than one spring in different spots inside these carbs depending on model and year.
If you're rebuilding an Amal carb from this era, it's a good idea to lay out all the springs you pull from it before disassembly so you know which one goes where when you put it back together.
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