Originally Posted by supershaft
It's real common. The seal can be replaced with the tranny in the bike. A lot of people will advise to rebuild the tranny regardless at 80k. I took one of mine apart at 106k and it didn't need a thing.
Thanks Supershaft. Was hoping that would be the case.
We still have another 15 - 20k miles minimum left on the trip. Hopefully it won't get too much worse before I get home and have chance to dig about further. Was planning on giving the bike a complete rebuild when we finish anyway. The PO looked after it to the best of my knowledge and I have always changed gear oil every 9k.. Always comes out as clean as new, so hopefully internally it is all as good as new. Encouraging to hear you had one with over 100k that was fine.
Out of curiosity, what is the process for replacing seal with tranny in bike? Is it as simple as removing gearshift, undoing Allen bolt, prying out seal and inserting a new one?
Any good links or recommended reading much appreciated.