actually i dont own either, lol. I was deciding which one to buy and was reading some reviews, and they were just saying that the yamaha has a lot more motor than the kawasaki does. I didnt say it sucked, you guys get way too offensive. Im sure its a bad ass bike, however the review i read said it didnt feel like the motor was all there. Im not brand biased or anything, hell which ever one i can find in stock first, im gonna get.