I though I saw where Ritter Racing offered a service where they took the 400L top end (piston, heads etc) & retrofitted it to the 250R. That would be the cheapest route probably. You would loose the auto tranny but this is probably also the lightest route. Good luck & keep us posted.
Jim Maloney 98 400 Scrambler
http://y42.photos.yahoo.com/jim400scram

 

ttaylor,, I'll probably put the frame up on Ebay or something. It will probably be complete frame, a arms, shocks, ect. The only thing I'll probably need is the motor, tranny, and radiator. I still haven't got the frame yet, so I haven't started to plan things out yet. I went to the guys house yesterday, and no one was at home.

Jim,, Your right about the 400 jug on the 250r. The shop that I order parts from told me about doing this. They machined the 400 to fit the 250r, and said it was the wickedest thing he ever rode. But I've got some $$$ tied up in my clutches and stuff. Plus I'm spoiled with the auto tranny now.

By the way, if any of you were able to build a complete race quad, what would be some of the features you would want on it to improve the race ability of the quad. (ext. a arms, ?" tires, ect.ect.) I'm open to suggestions[img]i/expressions/face-icon-small-smile.gif[/img]

 

Maybe a pipe, air filter, outerwear, tires, rims, and jet kit to start with. Then extended a-arms, swingarm, and take out the electric start to make it even lighter. You can just use the recoil. Good luck. Let us know how you do.

 

400fnsport,
If you decide to sale your rolling chassis..everything but the motor and tranny let me know. I would be interested in buying it!!! Just drop me a line when you are ready to start your project.