Dellorto 30mm high performance carburettor PHBH 30BS for Vespa PX / PE models with Lever choke the carburettor. The PHBH is a safe bet for any tuning cylinder and gets the maximum performance from the engine. This carburettor is used in many Polini and Malossi tuning kits for these vehicles. Note: For mounting on conventional intake an adaptor is required. Carburettor must be tuned depending on the tuning cylinder. Connection at engine: 36mm connection Air filter side: 60mm main jet: M6 # 115 Pilot jet: M5 # 55 Choke Jet: M5 # 70 swimmers: 9010.2 6.5g carburettor slide: 32mm, 40 ° (metal version) needle choice: X2 Nozzle: AV264