Re: Is your pedal crank too short?
Which Flux core wire are you using? I've noticed the Lincoln wire they sell at home Depot really works well with very little slag produced, still no substitute for shielding gas but it works good. Also, the wire spools at harbor freight are made in Italy, not China, and it's quality is much better than the wire that comes with the harbor freight welders. I got a harbor freight Flux core welder and it made a huge difference when I switched to the replacement wire, and it got even better with the Lincoln wire.