Poulan WeedEater Hedge Trimmer 25cc Engine "troy bilt choke" Questions

i have a TROY-BILT Backpack Blower, 25cc. runs and starts ok, but when i push the throtle to go faster the motor will stop running thank youy bill the choke might be back wards

I have a troy built tb575 ec and when I put it in choke 3 postion and press the throttle is cuts off Get someone to thoroughly clean out the carburettor. Sounds loike main jet blocked.