My bobcat started acting up and would die after a few minutes then restart so i got a new fuel filter .When i was changing the fuel filter i noticed the primer ball was colapsed .I took the the hose apart and blew air back into the tank not a good idea blew the pickup line off in the tank .I put a piece of hose on in the pickup lines place primed it and it fired right up after a few minutes it died again . It had the similar problems earlier this summer but came out of it