Denny get a rebuild kit and tourch tip cleaner to clean passages or go to pawn shop. Get a gun and go home and put Thinner in it, if you have a good pattern of 3-4" at 6- 8" away from work, use it. Tell pawn shop that if it doesn't perform right, that you would like to return it for one that will. Why pay big $ for something you will use maybe 6 times.