Well at 450 miles I finally decided to check my valves. Removing all of the plastic is a pain, but once you get it off, there is very good access to the valves themselves. All of my valves were just a little loose. Not too bad, but probably one to two thousandths. Over all, this is one of the easier bikes to adjust the valves that I've done. I took the opportunity to adjust my carb for higher elevations as well. Seems to be running good, but can't test ride until tomorrow so I'll let you know if I can notice a difference.