BRIGGS & STRATTON 450 SERIES NO START

2018 Briggs and Stratton 450 series no start. This lawn mower was returned to Walmart, customer stated no start after very little use. We bought it "as is" non-running from the store manger for $20 reg price $150 new. In this video I will show you how to clean a plastic B&S carburetor, for this is the third time this summer I have seen the same problem. DO NOT attempt repairs in this video without a licensed certified small engines tech present.