CVK 305F carburettor for Vespa GTS/GTV/GT L 125cc 4 for Vespa GTS/GTV/GT L 125cc 4-stroke LC for PIAGGIO Leader 125ccm 4TLC, engine connection: 40 mm, air filter connection: 53mm, main jet 108 , secondary jet 38, incl. chokeautomatic If the carburetor is beyond repair, then it requires replacement with a new element. We have the original carburettors, equipped with PIAGGIO, for each Vespa model available in stock. CVKs are used by PIAGGIO for all their modern four-stroke Vespa engines. By contrast, they mostly use DELLORTO PHVA carburetors for their modern two-stroke models. If the two-stroke has a different brand of carburettor originally fitted, the DELLORTO item is fully compatible for use. All carburetors are supplied fully assembled and include an electrically operated choke mechanism. SIP-TIP: Always use the correct size of clamp to secure the carburettor between the airbox and the intake manifold.###CM128215 – 8739105 (PIAGGIO)