The problem most people have with a wire feed welder is the "feed" part. You have to make sure that the spool can rotate freely-but not too freely. Also ensure that the drive rollers are adjusted correctly. If you have machine that uses plastic drive rollers (most all do) you should keep spares with you replacement tips as these are consumables as well.
I ditched my 220 lincoln mig for a clarke. The clarke better handles the heavier work where the lincoln preferred the light welding.
