An effective way to prevent hard-starting, rough-running equipment is to treat gas with AMSOIL Gasoline Stabilizer prior to storage and to periodically clean the carburetor and combustion chamber with a good fuel additive: AMSOIL Quickshot. Otherwise, you’ll find yourself at the dump paying to dispose of your lawnmower, trimmer or other equipment. If your engine and carburetor are already dirty and causing grief, clean them with AMSOIL Power Foam. Go to article with product links on AMSOIL.com