| Diagram | Fig. 9 — Carburettors, Fuel Lines, Air Filter, Carburettor Mountings · ref 27 |
| Subsystem | fuel |
| Listed in parts books | 1971–1973 |
Norton 'O' Ring
An 'O' ring sealing component from the carburetor and fuel line section of the parts books, 1971-1973.
Part number 033281 is an 'O' ring that shows up in the carburetor and fuel system section of the parts books, covering carburettor mountings, fuel lines, and air filter connections. It's a simple sealing ring used somewhere in that fuel delivery path to keep air or fuel from leaking past a joint.
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The catalog listing is brief and doesn't pin down exactly which joint this ring seals - whether it's at the carb mounting, a fuel line union, or an air filter connection. It appears across catalog entries from 1971 to 1973.
If you're chasing a leak somewhere in the carb or fuel line area on a bike from that era, this is worth checking against your parts book diagram, but call the shop and we'll confirm exactly where it fits before you order.
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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