Hey guys, I've got an 2012 Exmark 60 inch X-series Kawasaki 29 on hit. Engine starts fine, runs fine and mows fine for about 5 minutes and then will die like you turn off the key. After starting back it will surge wide open and then back down but then starts surging while mowing before dying again. History, took carb off and cleaned thoroughly, replaced fuel filter. Couldn't get it right so I took it to a backyard mechanic and he replaced a broken spring not OEM which mower is now doing the same thing as when I took it. I have adjusted the governor arm which there is 2, one from the motor which is not adjustable and the other off of that one that goes to the carb with spring and rod. Any help before taking to the dealer?