ok so ever since i've had this engine it has never wanted to start easily in cold weather. Like say 60 degrees or below. It's always the first start of the day, after that it starts first pull everytime. I don't think the choke has ever been setup right on the mower. It's a 2005 exmark 21 with the fj180v engine. Shouldn't the engine cutout and want to stall if I push the throttle all the way to choke? Mine doesn't do anything.