problem - fuel leak

[panterra_rider]

Darn. Was away for three days and came back. My bike had a small wet patch near the kickstand. Fuel. Where the fuel petcock attaches to the gas tank is leaking...pulled off - gasket looks okay. Might need tank replaced (under warranty)...one of the nuts where the petcock screw goes into is quite ratched. Might try goop or fuel stopleak or something first.
Has this happened to anyone else?

R.