| Listed in parts books | Not catalogued by year yet |
MAIN JET- MONOBLOC MK1 MK2
Main jet, size 170, for Amal Monobloc Mk1 and Mk2 carburetors.
This is a main jet for the Amal Monobloc carburetor, Mk1 and Mk2 versions. Main jets control fuel delivery at higher throttle openings, and this one is sized 170 per the catalog listing. If your Monobloc is running rich or lean up top, the main jet is one of the first things worth checking, and it's cheap enough to keep a spread of sizes on hand for tuning.
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Our records on this one are thin beyond the basic listing, so we can't speak to specific bike fitment here. If you're not sure which jet size your Monobloc currently has fitted, pull the float bowl and check the stamped number on the jet itself before ordering a replacement.
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