Anyone ever heard of this? My 01 xr 650L went down about a month ago with no compression. Today the mech at the Honda dealership tells me "the valve seats came out of the head." He/ they have never seen this one before and its gonna cost me $1500 to rebuild the head? What to do? the bike has 14000 on the clock but it hasn't been abused (ive had it one year and put 1500 on it my self) It doesnt have any major mods on it (KN filter and uncorked the exhaust) I bought a Honda to avoid major probs like this one. They're supposed to be so reliable and all. What gives?