Replaces Part Number: 1143-120-0641 1143-120-0631 1143-120-0611 carburetor, Replaces for C1Q-S295 C1Q-S296 C1Q-S233, Replace for -9 Carburetor Air Filter Tune Up Kit For MS231 MS231C MS231Z MS251 MS251C MS251CBE MS251C- MS251Z Chainsaw (Primer Bulbe Type) [High Quality Material]Using this carburetor kit can your chain saw runs smoothly, improve engine performance, and can effectively solve oil leakage, difficult starting, inability to accelerate, black smoke from the exhaust pipe, ETC. [Excellent Quality] This carburetor kit is made of first-class materials, each one is factory tested to stable engine performance, easy installation, and can effectively increase the service life of your chain saw VALUE KIT: Make maintenance easy with our carburetor assembly kit. It offers excellent value and is a cost-effective solution to keep your chain saw running optimally. These parts are simple and easy to use, and installation videos are easy to find on the web and take only 5-10 minutes to