I bought a 1970 sa 200, Im on the firing line with this. Im having a problem with the arc going out @ the 3:00 and the 6:00 on the pipe. I was also on the clamps today putting in the root and the same thing happens. I dont remember what I had it set on for the fill and cap but when I was putting in the root the range selector was on the 130/80 fine tune was 80 . (1/8 8010) Thanks in advance