Got a new (to me) 650L a couple of months ago. I was not all that impressed with the power. I had a uncorked '97 a few years ago and I remember it seamed to have more power. Well, I took off the smog junk, added 14/48 T sprockets, E-Brothers exhaust, K&N filter/remove snorkel. Also got the Dynojet carb kit but never did put it in cause it seamed way overpriced, sent it back. Then ordered a Edelbrock carb from Barnums. Just got it on yesterday, and real easy even for a bonehead like me. I absolutly cannot believe how this baby runs, I guess its a combination of all the mods. But you had better be hanging on!!! I know they do, but I can't imagine how good a R must run!! I'd about be afraid to ride one wide open...... I'm all smiles!!!!!!!!!