| Diagram | Fig. 12 — Carburetor Mountings, Air Filter and Fuel Line · ref 1 |
| Subsystem | fuel |
| Listed in parts books | 1973 |
Norton Carburetor Heat Insulator (30 mm carb.)
A 30mm carburetor heat insulator that mounts between the carb and the cylinder head to cut down heat soak into the fuel.
NM23358 is a carburetor heat insulator sized for a 30mm carb, and it shows up in the parts book under Carburetor Mountings, Air Filter and Fuel Line. It's the block that sits between the carburetor body and the cylinder head or manifold flange, keeping engine heat from soaking straight into the carb and causing fuel to percolate or the slide to stick.
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Our catalog record only shows this one appearing for a single year, 1973, and we don't have more detail on it beyond that one listing. If you're matching this to your bike, it's worth checking the carb size on your machine first, since this insulator is specifically for the 30mm carburetor.
Give the shop a call if you want us to confirm fitment before you order — with only one catalog appearance on file we'd rather double check than have you guess.
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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