Zama carburetor for Stihl chainsaw. Zamak C1Q-S152 Models: MS180 - check the version: replaces the Zama carburetor C1Q-S57A - C1Q-S57B (code STH/1130120603), to improve acceleration behavior See Technical Information 31.2009 on carburettor modifications and the new carburettor for MS 180.