Today at Elsinore the seam in the rear-most part of my fuel tank came apart. (No, I didn't crash or anything.... it just came apart.) Gas was flowing out at a pretty good rate. It gets better.... so I called, then stopped by the dealer I purchased it from. Here are some of the points made by this guy: - Motocrossers have a 30 day warranty. (So what!) - Yamaha is making the tanks on the newer bikes much thinner to save weight. (I never had a problem with the tank on my 98 400.) - All fuel should be drained after every ride. He continued that gas in California causes all these problems. Riders in other states have had no problems. (If true, Yamaha should change the design!... and issue a recall. This genius suggested there isn't enough bikes sold in California for it to be worthwhile for Yamaha.) Anyhow, he's going to "try" to get it warrantied through Yamaha. One thing is for sure, if they don't replace it, I will never buy another Yamaha and I'll badmouth Yamaha to everyone I ever come in contact with. (I don't care if I'm at 7-11 buying beer.... the cashier will know that Yamaha sucks!) If I don't get my new tank, I'll let you know which dealer and who the genius is.