I had some issues with it getting too hot and shutting itself down last year and I figured that might be due to the fact that the air filter is mounter almost right on top of the muffler. So I took the extra intake mani I had and mounted it on the other end of the carb and mounted a cheap water outlet from a car to the other end of the extra mani and mounted a washable reusable filter on that (it's actually a really big Spectre breather filter). The fuel filter is a mr. gasket meant for a carb'd car and it has the replacement element inside.