I picked up a '00 YZ426 last weekend on the recommendation of a buddy. The bike is in wicked good condition, previously owned by a mechanic. I though it would be a good idea to go with a four stroke seeing how most of my riding will be done on tight trails. The guy fired it up for me on the first kick and rode it around and I quickly handed him $2200. I get it home and it is just a bastard to get started, an even bigger bastard after it's warm. I have never been so frustrated with a bike and it actually made me miss my CR. The bike runs extremely hot also, at one point coolant was running out of the overflow. Also the clutch isn't gradual at all, it's launchy, and if it stalls I'm screwed. I think it's fouling the plugs real bad. I don't know what to do. What changes should I make to enjoy this bike better. I want my clutch to be gradual and it to start consistantly, like any other four stroke. I love this thing and don't want to give up on it, it's wicked fast and well balanced. Any help would be greatly appreciated.