Master repair kit for twin HS2 carbs, as fitted to many Cooper models. Comprehensive kit includes throttle shafts, bushings, butterflies, jets, float needle/seats, and gaskets/seals needed to complete a comprehensive rebuild. Reaming or machining the carb body is necessary to fit the bushings, but this will allow a worn body to perform like new. Genuine SU. Ref: CRK101, CRK0101.