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Hi Wayne, Wire at 150º still has moister as water boils at 212º. You would need about 250º to drive off the moister but that's probably not your problem. Is the wire clean? No ruff spots? If the surface is dirty that could be your problem. I had a kangaroo rat pi$$ on one of my spools and ruined most of the spool. Gas coverage is also probably not your problem. The first signs of low gas flow or wrong gas type is a charred or sugar covered weld face. Next would come surface porosity (tiny bubbles). Some times, in very rare cases, you can have a pin hole leak in the gas line that will cause a suction air leak that simulates low gas coverage. Here's my list of Mig problems: First check the tip to make sure it's feeding wire free. Next check the liner to see if it's clean and not binding. Next check the liner feed tip to make sure it's not grooved and the wire hanging up there. Next take the drive rolls off and cut off a small piece of wire and place it between the rolls grooves while holding upto the sunlight and if the drive roll faces are touching then the wire gooves are worn and the drive rolls needs replaced. Some drive rolls have two different grooves for different wire sizes and make sure they match wire size when you reinstall them. They will be stamped for the correct wire size on the edge of the drive roll. Next check the tennsion on the wire spool. It should be firm but not hard when trying to unspool wire. The center nut adjusts the spool tennsion. If it binds or won't spool off smoothly then clean the wire spool drive tennsion adjustment. If the wire has rust or other forgien material either clean the wire or replace it. Also watch for the wire crossing over another wire causing binding. Always check the ground clamp for a good connection. Move the clamp as close too the weld zone as possible to remove any doubts. T_Bone
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