Small Engines (Lawn Mowers, etc.): Poulan Backpack Intermittient Operation, sams wal, backpack leaf blower

Question
Good Morning BEN,

My backpack leaf blower (Poulan Pro 442, 2 cycle) is acting real strange all of a sudden. It runs for several minutes, and then just dies. Start it back up after a few minutes, and does the same thing . . . runs for awhile, then just dies. Seems like it's running out of gas, but if there's blockage somewhere in the carb, why does it run at all? The gas pickup filter inside the tank looks clean.
I removed the big single screw on top of the carb, which lets you take the postage stamp sized metal plate off of the top, but all that was under there was a gasket and a couple of shallow passageways. I didn't see a screen, or much of anything, in there. The only other screws I see are underneath on the bottom of the carb where the priming bulb attaches. Should I remove that?
There are two tubes that lead from the carb down to the gas tank. Besides the gas intake tube which has a filter on its end, there's a second, smaller tube, which has a small screen on it's end. I could blow thru it, so it's not clogged.

Answer
Paul
Your high speed port is partialy clogged or has a obstruction,the low speed is exactly that runs low speed .When you start to accelerate the blower the high speed jets pour fuel into the carb.You may have to rebuild the carb and clean it really good in a carb cleaner. You an also buy a couple cans of carb cleaner spray at any store like lowes,sams,wal-mart etc etc