| Diagram | Fig. 27 — CARBURETTER, 3TA AND 5TA · ref 10 |
| Subsystem | fuel |
| Listed in parts books | 1960–1962, 1964–1967 |
Click spring
Amal carburetor click spring, the detent spring that gives the throttle slide its notched feel, 30/064.
This is the click spring out of an Amal carburetor, the small detent spring that gives the throttle slide or the tickler/air valve linkage its notchy feel so it holds a setting instead of drifting on its own. It shows up across a run of Amal carb figures in our books spanning the 3TA, 5TA, T90, T100, T100C, T100SS, 6T, T110, and TR6 listings, so it's a common wear item on the smaller and mid-size unit twins of that era.
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If your throttle feels sloppy at idle, won't hold a steady position, or you notice the slide action has gone smooth and lifeless instead of having a bit of resistance, a tired click spring is worth checking before you start chasing other carb problems.
We list it as 30/064 in the current numbering. It's a small, inexpensive part to have on hand when you're rebuilding a carb from this period, since it's easy to overlook until the carb is back on the bike and not behaving.
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