My yard king 18 horse will not start. It clicks like the celinoid is bad. I am not able to locate the cellinoid. I have the gas tank out, the front covers have been removed and the cover for the parking brake is removed. I would think that finding the problem would be easy. Then I realized that I don't know what a cellinoid for this tractor looks like. Can anyone help me? My yard is getting long and I need to get this thing running. Thank you.