Hey all, I am from the Ogden area and a member of the Ogden Cycle Assoc. I don't ride much myself as I am mostly busy keeping my daughter's KX 100 on the track. I started viewing these forums months ago to gain knowledge on maintaining her bike. We are currently in the middle of our first tear down, seems we didn't warm the bike enough on a cold morning. BTW there is a small piece of aluminum from her piston stuck on the cylinder wall. Any ideas on getting it off? I have tried a pick and was told to try a little muratic acid. Other than that, the cylinder is OK.