Here are a few SU carb links that I have gathered while working on an old Morris I have (its registered!! yay!!)

I posted them on my Morris Forum and thought my brothers and sisters running the older Jag motors might find them useful.

Here are a couple of links relating to all things SU that I have stumbled onto:

SU Carburetor Self-Check Owners Guide

HS Carburetter Description and Adjustments - SU Carburetters

Check your Choke

VClassics Interactive - Archive

Secrets of the SU Carburetter : How-To Library : The MG Experience

https://www.youtube.com/user/MossMot...earch?query=su

Obviously there will be duplication, but some methods of explanation work better than others and thats differs between readers , so pick the one you like.