Carburetor. Zamak C1M-S204C Models: BG 56 BG 56 BG 56 C-E D BG 56 C-E D BG 56 C-E Z BG 56 C-E Z BG 56-D BG 56-D BG 56-Z BG 56-Z SH 56 C-E D SH 56 C-E D SH 56 C-E Z SH 56 C-E Z SH 56-D SH 56-D On the left the previous carburettor without limiter cap on the idle adjustment screw (L). On the right the new carburettor with limiting cap on the idle adjustment screw (L) According to new local exhaust regulations, the above equipment is equipped as standard with a new carburettor, which reduces the user's ability to adjust the idle speed adjustment screw using a limiter cap. The previous carburetor C1M-S204 is replaced by the new version C1M-S204A. The previous code no. 4241 120 0608 remains valid for the new version. On the left the previous carburettor C1M-S204A, C1M-S228A. On the right the new C1M-S260B, C1M-S261B carburettor. The previous C1M-S204A Carburetor code STH/42411200608 is replaced by the new version C1M-S260B Carburetor code STH/42411200615.