| Diagram | Fig. 28 — CARBURETTER · ref 10 |
| Subsystem | fuel |
| Listed in parts books | 1969 |
Main jet, size 190 c.c.
Amal carburetor main jet, size 190, cross-referenced as 376/100.
This is a main jet for an Amal carburetor, sized 190 (the number Amal uses to denote flow rate, not a physical dimension you can measure with a caliper). Main jets control 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 fueling once the rest of the setup is sorted.
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This one shows up in the catalog under the Amal carburetor figure with a single appearance on record, cross-referenced to 376/100. If you're chasing a fueling problem, jet size is only part of the picture — needle, needle jet, slide cutaway, and float height all interact with it, so don't assume a jet swap alone will fix a flat spot or fouling issue.
We don't have more detail on this one beyond what's shown here. If you're not sure which jet size your carb currently runs or needs, bring in the carb or give us the model and we'll help you sort it out 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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