my tractor was running great then it starting to run rough wouldn't run full throttle then it blew out the exhaust gasket,the old intake was in rough shape, so i bought a new intake its not leaking. I fired up the tractor after i fixed the intake and it ran but never would rev up . I even disconnected the Governor to see it that was the problem no change still ran like the timing was retarded are some thing. now it wont start at all even with starting fluid . i tested my wires i have fire,compression .and it seems to be getting gas its dripping out of the zenith carb this it didn't do before. I'm at a lose here.am i forgetting something? Thanks much John.