LOL!!! now i get to show my ignorance....hmmm...kewl!
The atc or the XR both in 250cc? I`m still trying to figure out if i have a OHC or pushrod engine! DOH! I never admitted that :( However i am hungry for any and all education on these bikes and any upgrades and mods that can be had. I love my Bird at the current level of performance ( except the lighting ) and await any responses from all. Would also like to say thanks to all that have posted to my many other questions and helped me with my dire lack of wisdom concerning these matters. P.S.... when speaking of the clone equivilent of these motors what would mine fall under? Honda. Yamaha? etc..etc.