My WR with 540kms on it is in the shop with top end problems due to water and sandy material getting into the top end. Do a search on the crank case, carb vent and other mods now, submarine your bike and save a huge bill. I have one coming that is going to lay my bike up my lovely new machine (used to be) for a long time. I am going to miss trail riding big time, and the payments keep coming. Save yourself my grief and do the mods now. P.S. I never did anything all the other bikes (mostly CRF's) I was with do.