Just picked up an 06 klx250s the other day, wasn't running, found out one of the overflow tubes coming from the carburetor was melted shut, fixed that, now it runs, but it seems to be 'knocking' when I coast for a bit, then give it a bit of gas it seems to kahkahkahkahkah (all at 5-10 mph). this bike is 10 years old with only 80 miles on it, so it's been sitting in a garage all it's life. Any ideas?

Thanks!

 

You'll get more input posting in the KLX250 specific forum: KLX 250S - Kawasaki Forums