Vent on fuel cap could be dry and blocked: wiping the fuel cap seal with WD40 will help sticking in the future. Or replace cap. Good luck? FrancescoMy 2002 16hp Kohler 2166 Cub Cadet with only 200 hrs. on it is now stalling after starting ,running and mowing fine for maybe 5-10 mins. then it sputters and quits running. After it cools off and sets for a while, it fires right up runs and mows great then sputters and quits again. Plenty of gas, installed a new fuel filter, spark plug, loosened fuel tank cap...still stalls. Anyone have a similar problem and find a solution to stop the stalling problem. HELP!