| Listed in parts books | Not catalogued by year yet |
NEEDLE JET MK1 CONCENTRIC .105
Needle jet, size .105, for the Amal Mk1 Concentric carburetor.
This is the .105 needle jet for the Mk1 Amal Concentric carburetor. The needle jet sits inside the carb body and works with the jet needle to meter fuel through the mid-range of the throttle, so it's a core part of how the carburetor gets the fuel-air mixture right off idle and through normal running.
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The .105 marking is the jet's size designation, which is how Amal and the parts books identify which jet you're pulling out or putting back in. If you're rebuilding a Mk1 Concentric or chasing a flat spot or rich/lean issue in the mid-range, this is one of the pieces to check.
We don't have much more history on this one beyond the catalog listing, so if you're not sure which jet size your carb originally ran, check the existing part or your carb's tuning sheet before ordering.
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