ok so i finally got my h70 running almost good you see i have a 12hp carb on my 7 hp Tec i check on this site before buying it and you guys said i would work, so i got it...it is an older carb but this is the first time it has been run since its rebuild.. and let me say they guy that did the rebuild did an amazing job. so i got it running no air filter but when i go to turn the idle down she kind of sputters and dies and when i try to give her throttle to keep her going she still just dies out. any ideas or adjustments on the carb i should do,,,also this was without an air filter would haveing one on make a difference