Today, I picked up a 22 inch Craftsman mower on the side of the road. There was a note which indicate there was a gas tank leak. I forgot to copy the model number, but the mower is 22 inch, front wheel drive, 6 hp B&S and has a rear discahrge. I got no bag with it. I tore down the machine and noticed that there was a replacement fuel line with no clamps. The line was sloppy and I thought this could have been the source of the leak. After an afternoon of parts cleaning and a new gas line and I reassembled and started filling the fuel tank. Great no leaks. I then filled the tank to the top thats when it started leaking. The leak apears to be at a seam. I'll try to repair the tank with ?? thought I'd go to Auto Zone and see what they have. BTW, the motor runs great. Blade was recently sharpened. I ichecked it for balancing it was just slightly off. Air filter is clean and oil is fresh. I was able to cut some 12- inch long grass with no problem at all. This mower may be a good find.