Carburetor body. Distinctive features of previous versions of carburetor bodies left: previous carburettor body 4128 120 0100 in the center: previous carburettor body 4128 120 0101 right: previous carburettor body 4128 120 0102 Previous versions of carburetor bodies can be distinguished by: a) the shape in correspondence with the tie rod seat (1, 2); b) the cast recesses (3) for the bushing – present only on previous versions of the carburettor body 4128 120 0100 and body 4128 120 0101 Replacing the previous carburettor body 4128 120 0100 The previous carburetor body 4128 120 0100 is replaced by the new body STH/41281200151 (parts kit). The new body 4128 120 0151 (parts kit) is available for the previous machines with previous body 4128 120 0100, as the new kit includes the modified body and the new pump STH/00003506201. The previous body 4128 120 0100 is no longer available. Replacing the previous carburetor body 4128 120 0101 The previous carburettor body 4128 120 0101 is replaced by the new body STH/41281200152 (parts kit). The new body 4128 120 0152 (parts kit) is available for the previous machines with previous body 4128 120 0101, as the new kit includes the modified body and the new pump STH/00003506201. The previous body 4128 120 0101 is no longer available. Replacing the previous carburettor body 4128 120 0102 The previous carburetor body 4128 120 0102 is replaced by the new version STH/41281200103. The new carburetor body 4128 120 0103 is available individually for new machines. For previous machines with previous body 4128 120 0102 the new body is available as a set of parts including the new body STH/41281200150. The kit includes the new carburetor body 4128 120 0103 and the new pump STH/00003506201. The previous body 4128 120 0102 is no longer available. Models: FS 450 FS 400-K FS 400 FS 450-K FS 450-L FS 480 FR 450 FR 480 (4128) SP 400 SP 450