for an old bike mine didn't run badly at all, I was fairly impressed by it's power and simple design (I could do the top end on it in 15-20 minutes) no powervalves but yet this weird rotary valve on the intake, no reeds on this model as there were on the Can-Am 390's and 400's, actually mine didn't handle too teribly either, the previous owner jacked the forks up in the clamps to make the bike shorter as it has a really high seat height, this resulted in some headshake up around 5th or 6th gear, seat is hard as a rock though, after I finally get up the nerve to fix the motor it'll be good as new, my friends keep telling me to take the motor and make it into a go-cart though, but that'll never happen (although it would be sweet).
------------------
Jeff-
'84 Can-Am ASE 250 (brutally fast rat bike)
'93 Kawasaki KDX200 (bored 40 over, FMF pipe, A-Loop suspension)