Weedwacker starts on 1-2 pulls with full choke. After short warm up will run well on mid choke setting. Engine dies when choke is moved to full off.
Craftsman 34cc/2.1 cu.in 4-cycle weekwacker.
Is getting good fuel. Removed fuel filter to see if clogged, had no effect.
What could be the cause?

Chuck, July 2009