Well I finally got home to my new/used (completely stock) 00 KX500. It's in great shape all & all, no big problems on the exterior, everything looks new almost actually. It rides good, although it vibrates more than anything I've ever owned lol, the suspension is good, shifts through all the gears perfect and its torquey, just no snap of power at all.
I took it for a spin this evening and it has less power than my ol' KDX220. The potential is there however I know it, I just need to work on it. It was a gravel road I rode on, and it did leave ruts in the road, so hookup could be part of it but I'm thinking theres more to it than that.
One thing, jetting seems to be lean, i'm getting a surge on midrange and when I let off the gas, so I'm gonna try jetting first. The intake boot on the reed valve side is dry rotted a bit, but I don't think its sucking air, but I'm going to replace that pronto anyhow.
I still need to check the compression and reeds, will do tomorrow. If compression is low I'll go ahead and do a topend. I guess if jetting doesn't help the power I'll check the KIPs as well.
I'll post more later, I just drove 14 hours straight and I'm a bit worn out and probably not making sense.
Any other suggestions while I'm going over her?
Thanks guys.