I purchased a new Gravely ZT2250, last thursday night, I used aprox. 2 hours before it started sounding terrible, could barely finish my lawn, at this point I'm totally pissed. I leave a message at the dealer, I won't go into what I said because young children way be reading these threads. The service dept. finds black plastic material in the carb. which ruined the carb. so they have to replace the carb., still runs like ****. After calling the factory they discover that a wrong part was installed in the engines govenor. So gravely is shipping these brand new machines with the wrong parts. I don't know what you guys would do but I blew up ! I demanded a new machine ASAP ! since I've bend down since Friday and mainly because I'm not at all satisfied. I think a different machine or my money back is not unreasonable! They finally offered me a loaner demo model which I love, it has a 23hp kaw, they other machine had a 22hp Briggs commericial. Response from all you guys- Please !