Hi, <br /><br />Fired up great, ran smooth for about 10 mins. Then all of a sudden it just "jolted" kind of, then died. Had trouble re-starting engine. Fired back up on the 4th try and ran great once again for another 15 mins. Turned off the engine, then fired right back up. Ran smooth, no probs after that. Weird...<br /><br />What would cause this? Do you think it could be water in the gas? ANY SUGGESTIONS PLEASE HELP!!!!<br /><br />THANKS!!!