PWK carburetor overhaul kit includes the following parts: Carburetor needle Main jet Idle jet Air adjustment screw / mixture Spring for screw Adjustment screw + spring (set of internal screws) Float (pair of floats) Float needle Float needle seat Float spring Float chamber gasket (bottom rubber) Various gaskets and O-rings Cover gasket / intermediate gasket Connecting screws (stainless steel screws) Float bracket / clip Internal plastic parts (cover / insulator) Compatible with PWK carburetors with diameters: 21 mm · 24 mm · 26 mm · 28 mm · 30 mm