Carburetor For Stihl Chainsaw MS261 MS261C MS261CBE MS261CQ MS261CQZ MS261VW MS261VWZ MS261Z MS271 MS271C MS271CBE MS271Z MS291 MS291C Stihl PN 1141 120 0611 1141 120 0617 1143 120 0615 1143 120 0616