The Weber IDF Series is available in 40, 44 and 48mm barrel sizes. GENUINE Weber IDF Carburetors are interchangeable with 36, 40, 45, and 48mm Dellorto DRLA carburetors. The IDF and DRLA both share the same intake manifold bolt pattern, air cleaner pattern, and in most cases linkage can be interchanged. GENUINE Weber IDF Carburetors are sold with factory jetting and for most cases will be too lean. If specific re-jetting is necessary for your application, talk to your sales person when ordering your GENUINE Weber IDF Carburetor.

Velocity Stacks Included.

CB Performance has a large selection of Air Correction, Idle and Main Jets, as well as Gaskets & Accessories, Velocity Stacks, and Venturis to fit your GENUINE Weber IDF Carbs.