Trying to get an experienced opinion on this one. Since i have had this machine it has bogged out in altitude. It now does this all the time. I noticed that it gets very little fuel in the primary filter bowl. I have always kept both filters fresh but it has always been an a**, the higher I go with it. I have had it in the shop, and got raped by the idiot that told me every time that he just didn't know what the problem was. Of course at these times,my machine was at a much lower elevation.......can someone please help me, because nobody feels like doing it - not even Lincoln Electric, they told me that I would just have to live with it.