Bought my son a 2002 Lt A 50 and sent it off to Pete Schemburger for much needed help.  I went on Ebay and bought one of those kits that had the complete top end to find out one of the rings were bad.  We decided we would just order a new Weisco piston for it instead of trying to locate the ones provided in the kit.  I had Pete set it up for race gas build with the results of a 14:1 motor.  The motor was ported and polished, Pro circuit pipe, removed the stacked pilot jets, removed the air box and ordered the CT Racing K&N adapter for the stock carb and a bunch of jets to fatten it way up.  I am hoping when I take him to the dunes I don't have to dig him out all the time.  Will post pics soon of his pride and joy.