Walbro carburetors are a high quality replacement option for your Husqvarna chainsaw. Carburetors will gum up and gaskets tend to deteriorate over time, especially when running fuel with a high ethanol content. Sometimes a new carburetor rebuild kit will not repair all the damage, so only a new carburetor will do. Many chainsaw models have several carburetor options, and many times they are from different manufacturers, so be sure to check before ordering.