I don´t know if this is the right place to post, but here it goes... I bought a 2001 model Yamaha WR-426 about a year ago, and the 5th gear didn´t work so I took it to a shop to get it fixed. The guy who "repaired" the bike said it would be good to change the piston at the same time, and so he did. But after I got the bike back it was burning way to much oil (about 1 liter oil per 10 liter petrol), and has a blue smoke out of the exhaust. I don´t know what it is wrong with it, so I wanted to know if anybody has any clue what is going on. Thank you all for good forum. Logi H.