Your MIG welds look like bird poop: the four settings that fix it

1. Voltage too low gives a tall, ropey bead sitting on top of the metal. Turn it up until the bead flattens and wets into the base metal at the edges.
2. Wire speed too high for your voltage makes the gun push back in your hand and spatter everywhere. Back it off until the crackle sounds like bacon frying, steady and even.
3. Stickout too long (more than about 3/8" on a 140-class machine) drops your amperage and you get cold lap. Keep the nozzle close.
4. Travel too fast. Watch the puddle, not the arc. If the puddle is not keeping up with the wire, slow down.

Run beads on scrap with your settings written on the plate in soapstone. Change one thing at a time. Thirty minutes of that teaches more than an hour of videos.