Im currently looking for a bike and i saw this 2001 yz426f and i was wondering if that is a good bike? My buddy said that they are junk and they never start if you tried your hardest to kick it. Also, its it a lot heavier than a newer 450? Also does any body have to adjust thier valves on it. Would the bike be worth to get? Is there anything else i should know about the yz426fs? Thanks! I highly appreciate all the comments!!!!!!!!