I have a 1050 Cub Cadet, 26 hp Kohler. Is there a fuel shut off switch or valve and where is it located. Are my GATOR blades the cause of a terrible looking mowing job. I always have to go back over, like it's missing a section of grass. What are the best blades for a beautiful looking cut. I do not have a bagger. Thank you, Janene. :confused2: