Carburetor Gasket and Diaphragm Kit (CDK) II for Keihin 38/40/42/44mm Diaphragm Pump-Type Carbs.All the parts needed for a complete rebuild, including new diaphragm, O-rings, gaskets, needle and assorted hardware. O-rings, gaskets, needle and assorted hardware.Made in Japan for WSMFits CDK II Carbs ..