I have an 89 XR600 I've been using the stock tank I went to put on the 4 gal. that it came with. Started taking the petcock off to switch it and one bolt came out, one bolt just turns in the plastic. I bought a new petcock for the big tank it works fine now.Went to put the stocker back on and yes it leaks now. Anybody got a way to fix this or is the tank junk now.