Do you need just a little bit more power? I have just the thing!! 1986 KX500. I bought this bike 4 or 5 years ago and raced it in the Florence GP Vintage race a couple of times. Other wise it just sits around looking COOL! It is all original except for an aftermarket head with a built in decompression valve. Has not been started in well over a year so I'm sure we would need to flush out the carb to fire her up. This is not a "restored" vintage bike but its a very clean "rider."