The choke tube (also known as the main venturi) is one of the most critical components when tuning your carburetor. It determines the air velocity drawn through the carburetor. A choke tube that is too small can restrict the engine's peak power, whereas one that is too large will reduce air velocity at lower RPMs, leading to poor throttle response and drivability.

This choke tube (part number 7956) is designed to fit both the Dellorto 45 DHLA and the Dellorto 48 DHLA. By changing the choke size, you can fine-tune the carburetor's characteristics to perfectly match your engine's displacement, camshaft, and intended use (e.g., street or track).

Technical Specifications & Available Sizes:

• Compatible Carburetors: Dellorto 45 DHLA and 48 DHLA.
• Available Sizes (mm): 34, 36, 38, 40, and 41.
• Sold: Individually (2 required per carburetor).

Note: If you are running a Dellorto 48 DHLA and require the largest possible choke size (43 mm), you will need the specific choke tube with part number 8564,43.