Cub Cadet Not Starting?I have a Cub Cadet XT1 18hp 42" Cut. Last season, it ran fine, this season I opened the garage to start it, with jumper cables in hand as I knew the battery would be dead, and new gas. I changed the gas out, drained the lines, drained the carb, and put in fresh, choked the engine, and turned it over. Wouldn't start.