15mm CP carburettorfrom Polini. The carburettoris the ideal choice as a replacement carburetor. The 15mm inlet corresponds to the most OEM Carburetors on 50cc vehicles. Very easy to tune and thus a universal fit. Little to no effect if there is already a 14-15mm factory-fitted. Equipped with button-choke with option for cable choke conversion. We offer the full range of spares and replacement items for this carb. Connection diameter intake manifold: 25.5mm connection diameter. Air filter: 46mm. Main Jet: 70. Idle jet: 36. Needle: 14/22