I just purchased my WR426 01 last Thursday. After talking with Socalwr426 I changed my oil as he suggested. I had only ridden the bike one for about 1hr. To my surprise the oil was full of tiny metal particles. My filter was actually full of the stuff. I was shocked. Another thing that surprised me was when I asked my dealer to get me the shorter throttle stop screw. He looked at me like I was an alien. He even tried to tell me not to believe what I read on the net. Well this may be true for many things after what I have learned here I felt confident that I had at least some Idea what I was talking about. After about an hour I talked to my salesman who also rides a 426 and the GM and they found the part just like that. I knew that parts man was full of it. Also I pulled my plug to check it out. It was all rusted up on the washer and the nut. They set me up with two replacement plugs for free. Mike the salesman recommended that I raise the needle jet up on click to lean it out. It was kinda black and sooty. Now my real problem is how to raise the clip and replace my old throttle stop screw with my new one. I know this isn't brain surgery but I am not sure exactly how to do this. I am thiking of letting the dealer do it but then I'll have to pay and I won't learn how to do it my self. If anyone has the time to give me some detailed info on these things I would be greatfull. Thanks. Later.