Setting the machine up is tricky but it's just a case of feed speed for the wire an gas pressure, my dad taught me when I was 5, I forgot everything untill I picked up the gun again 2 years ago, try looking at a mig welding forum, lots of help to be had there as I appreciate not everyone has a coded welder to pass on the knowledge, I had me a lil Clarke pro 90 to start with an traded it in for a larger mig, when one came up on sale, just for reference I sold mine for £40, so the deals are out there to be had!! Best of luck, I will be replacing a lower rear quarter soon an will post up an take pictures as I go for you if it might help...