has any gone around the world on a ktm 640 adventure
 

looking at a ktm 640 adventure to take on a trip around the world in places like africa, mongolia and south america and i am wondering what type of problems people have with them on long trips over 75000km

See http://www.fowb.co.uk for one example.

One more. I ran into this guy in Laos in 2000:

http://www.adventurebiker.com/

not quite RTW, but I did ride my 2001 Adventure 640 across Australia, then overland to Thailand, and crossed Canada coast to coast. Not to mention competed in some enduro events along the way.
No major dramas. PM me if you want a bit more details.