Im working on a Stihl TS350 Cut off saw that is spitting gas out the carb, running rich and bogging down when at full throttle. I pinched off the fuel line and as the carb starved for fuel it ran better and better until it died from lack of fuel. Does this mean the carburetor is putting out too much fuel? Or could something else be wrong. I checked the exhaust is clear, 150psi of compression, and I don't see any obvious signs of the crankcase seals leaking.