COVID-19 UPDATE: We are open for click and collect, returns and Restoration drop-offs only. Our shop is currently closed to customers in line with the latest government guidance.


The technical articles for SU are divided into categories.

Please click a category heading on the left to show or hide the articles in the category. Please click on an article name to go to the actual article or click on the relevant image below to go to the first page in each category.

The SU Carb company
Jet Needles
Introduction to SU Carburetters
H Types Carburetters
HD Type Carburetters
HS Type Carburetters
HIF Type Carburetters
Thermo Carburetters
Electric Fuel Pumps
Mechanical Fuel Pumps
Choke units and Thermos
Fuel Pumps
Technical Maintainance and settings
Needle Comparison Charts