We have a Hustler SuperZ, bought new in Nov 2007- 30h Kohler air cooled engine, 60 in deck. Never had a problem with it until recently. Started dying after mowing just long enough to get hot. Then it just dies completely and can't restart until it cools off. Hubby replaced the fuel pump, and re-ran the fuel line as he saw the original had started cracking. Same problem. Filters are good, he had changed them too. Finally took it to dealer, and they are stumped. We're thinking there's a vapor lock maybe, like the carb is starved for gas- dealer thinks so too, but can't find where. They have even ran a seperate fuel source to rule out the tanks on the mower, and it still dies after getting warm. Supposedly they have been talking to both Hustler and Kohler, but it's been there since late Monday of this past week and no solution yet.
Anybody have any ideas? I'm disappointed, as we researched Hustler and they had a high approval on their mowers. Matter of fact, the neighbor has one, but it's water cooled,- his is running great and his is one year older. Any help will be greatly appreciated. Thank you.