Greetings all. I've just acquired a Sealey Mightymig100 no-gas. Just to play with really - I've half made a mini bbq from an old helium bottle, and realised the pop rivets I've used will probably melt! Anyhoo, when I pull the trigger, the feed motor isn't strong enough to pull the wire through. I can stop ithe spindle with two fingers! Also, the speed control has no effect at all. I've looked inside and could change the potentiometer and\or the whole feed mechanism, but would I be wasting time and money? I'm proper skint, so would greatly appreciate anyone's advice. This forum's been a godsend, but I couldn't find anyone with the same problem as me. Thanks a lot, Jim.