Hey all. QT50 Won't start. Itll start on starting fluid but will only run for about 5 seconds before dying which leads me to believe it is a fuel issue. Carb is recently cleaned so I do not think it is a carb issue but I could be wrong. Also brand new premix that I put together last night so I know its not bad gas. Any suggestions? We have tweaked the screws every which way and can get it to a spot where It runs strong for about 10 seconds after starting with starting fluid but will still die.