I will show you how to clean and rebuild a Honda GCV160 carburetor. Honda carburetors need to be ultra clean, so if you have old gas or any varnish in the carburetor jets, it will fluctuate or surge. In this case, the engine oil was over-filled causing a lot of problems. Oil was leaking out of the governor, clogging the carburetor, and had saturated the air filter. I will show you how to clean up the Honda carburetor and get your engine running smooth.