I've got a scag mower with the 27HP kawasaki engine. We had it to the local dealer due to one cylinder being down. After 2 months with no repair we picked the mower up and found one of the coils bad (coil 2) replaced the coil and the mower ran perfect for 2-3 hours. Now it acts as though it has a fuel problem. With the blades engaged it will run for about 2 minutes and then chokes out and dies. If you choke it quickly it will run for a bit but only if you click the blades out. It's had a fuel pump and filter recently installed and I took the carb apart this morning and cleaned the bowl etc. Any other suggestions?