I have a Weed Eater Feather Lite FL25 that won't stay running. I follow the instructions up to pulling the rope in half choke. It will start but will only run for 5-10 seconds. If I try to adjust the choke sooner then the 10 seconds they recommend the moter will stop.

Hi,
If it is a Walbro carburetor, I would say replace the inlet screen. That brand has the unusual specification of a dutch twill screen and it clogs regularly. Try:
Peace,
Clarke