when it dies you say no fuel to carb,,take oil can with gas in and squrit in carb top see if starts,, if no check ing,,if starts remove line at carb and crank over no fuel???If fuel at carb remove air cleaner and open throttle see if acc pump shoots fuel,,if yes you have other problem,,if no remove top of carb see if fuel in bowel,,if no needle sticking if yes look for blockage in jet..doc