| Diagram | Fig. 13 — Carburetors · ref 24 |
| Subsystem | fuel |
| Listed in parts books | 1975 |
Norton Main Jet (220)
A size 220 main jet for a 1975-era carburetor, controlling fuel flow at higher throttle openings.
This is a main jet, size 220, for an Amal-type carburetor. The main jet controls fuel delivery through the mid-to-upper throttle range, and swapping jet sizes is the standard way to richen or lean out a carburetor's fuel curve without touching anything else on the bike.
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Our catalog record on this one is thin - it shows up once, tied to 1975, with no bike model attached. Given the manufacturer coding here points toward Norton rather than Triumph, don't assume this is a Triumph carb part without checking your own carburetor's jet size and thread first.
Call the shop and we'll confirm fitment before you order - main jets are cheap to get wrong and expensive to guess on if it means pulling the carb apart twice.
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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