I own a WR400'00 and all of a suddent a thin crack apeard near by the sub-frame under the bolt here goes the ruber bracket. Since the tanks are very similar( if not the same) to the YZ 400/426 I would like to know how many of you had the same problem, and in a few words, how did you fix it. I phoned the Yamaha and their answer was something like "were sorry, but, too bad..." The point is, I can understand an engine failure, moving parts wearing out, electrical sistems burning out, but a plastic tank craking????!!!!!!! on a bike that mainly rode Supermoto, so not too many crashes, hits, vibrations. and the price here in Portugal is over 890 dollars:crazy: thanks guys:thumbsup: ps.: a bigger tank is out of the question!