This is a repair completed on my neighbors Troy Bilt Chipper Shredder Model CS4235. It would not start for him this past fall and its been at least 1.5 years he estimated since it last ran. Ti has a 11.5 gross torque Briggs and Stratton engine a real monster to rope start. Took the carburetor apart it was really clean inside but the jet in the bowl nut was partially clogged. Just that simple fix got this back running. Will do a follow up after cleaning this up and before returning it to the neighbor!