| Diagram | Fig. 27 — CARBURETTER AND AIR CLEANER · ref 12 |
| Subsystem | fuel |
| Listed in parts books | 1969 |
"O"-ring, pilot air and throttle stop screws
Small O-ring sealing the pilot air and throttle stop screws on an Amal carburetor.
This is a small O-ring used on the Amal carburetor, specifically sealing the pilot air screw and throttle stop screw. It keeps air from leaking past those adjuster screws where they thread into the carb body, which matters for getting a clean, consistent idle and pilot circuit setting.
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It shows up in the carburetor and air cleaner section of the parts book, tied to a single catalog year. If you're chasing an erratic idle or can't get the pilot air screw to hold a setting, a hardened or missing O-ring in this spot is worth checking.
Order it along with whatever else you're rebuilding on the carb, since these seals tend to go hard and lose their seat over time.
We've never carried this one. Tell us what you're after and we'll go looking — you'll get a price and photos before you commit to anything.
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