I have had quite a bit of action on this one from the list. The two most offered suggestions are that the push rod is the first thing to suffer is the chain comes off. Make sure it is dead straight and smooth. Also, it is not uncommon for the oil seal to leak around the housing too, so put sealant around the edge of the oil seal before you tap it into place (a socket of the right size to fit just inside the housing is what I use, but I am sure you guys have that part covered too). I hope one of those suggestions work. Actually the request for help has generated a lively discussionas to wether it is a go ida to tour on a small bike. It's seems to have devided itself into two camps; those who think you are mad to try it on US roads (mostly Americans who think touring on anything less than a 650 is an invitation to be run down) and those who think it's a great idea but keep off the freeways (mostly everyone else). Personally, I often ride a 50cc bike on the open road and am planning to use a Suzuki TS185 for my big trip. You're singing to the choir here mate!
Nigel in NZ
--"How can I be lost if I don't care where I am?"--
The mouth of a perfectly contented man is filled with .
-- 2200 BC Egyptian inscription