One carburetor replacement set include a manual choke valve pz20 carburetor, an air filter, a fuel filter, a fuel line, an air filter clamp ring, 4 fuel line clips and 3 gaskets Made of premium quality material, built to strict quality control and up to OEM standard The air filter side diameter of the pz20 carb is about 32mm, need to use the clamp ring to clamp the 35mm air filter; the diameter of the intake manifold side is about 20mm and the bolting hole spacing is about 48mm Fits Chinese 90cc 110cc 125cc horizontal engine ATVs and Go Karts with horizontal engine; TaoTao or Honda, Baja, Coolster,NST, SunL,SSR and Kazuma’s quad ATV, 4 wheeler, go karts, moped, scooter, pit bike, dirt bike Depending on the motor vehicles condition, it may need some adjustment for the idle screw, pilot air screw or choke cable length to get the best performance, so, if there’s any issue with our product, please don’t hesitate to leave us a message 799868 Carburetor for Briggs & Stratton 498170 Carbureto