Small Engines (Lawn Mowers, etc.): weed eater will not stay running., fuel mixture, tank fuel

Question
I just bought a weed eater xtreme by poulan, I can get it to start but it will not stay running. When twist it upside or side to side it sounds like it wants to start running full out but it never does. my fuel mixture and everything is right, I just do not know why it will not stay running.

Answer
Hi Sean,

First, check the carb's mixture screws.  The high speed mixture screw is initially set at 1 & 1/2 turns out.  Then adjust it to give good acceleration and top speed, while not closing the screw more than you need to.  The low speed mixture screw is set at 3/4 of a turn out.  Adjust that, to give a smooth idle.  The 3rd screw, the idle speed screw, is set to give a low idle speed without stalling.   
If no change, then there is probably dirt in the carb.  I would rebuild the carb.  
Also, check the in-tank fuel filter.

Let me know how you make out.
Michael