28mm Racing carburettor for scooters, quads and buggy’s from 70-300cc. Great responsiveness and top engine performance. Intake: 34mm, air filter connection: 49mm. Supplied incl. Powerjet (HD 130, ND40, PJ32). The Powerjet function adds more power at full throttle. Releases greater engine performance. For conversion to twist grip on quads, we offer the cable and twist grip components.