A heads up about our bikes:
Both over 95.000 km
One bike (Leonies) still runs like new and has had zero failures! It still doesn't use a drop of oil!
Mine (suddenly) started to use a little oil (1l/10.000km) after 45.000 km, it turned out my airfilter wasn't sealing properly.... As a result it lost some compression but still ran fine.
After 53.000 km my camchaintensioner failed, temporary fixed this by welding an extension on it. I was able to find a cbr250r tensioner in Ecuador which also failed within 3000 km ( probably due to a stretched camchain), so I changed back to the extended one.
After 57.000 km the damper in the front fork failed, the pistonband of the dampingrod was torn of. I was able to fix this by having a guy with a lathe make a wider and deeper groove in the piston and I made a new pistonband of a nylon cable-tie (its still there, better dan original!).
After 80.000 I changed the cilinder, piston and rings on my bike and also installed new camchain and a manual tensioner. The piston showed some wear, the cylinder very little, but the oil rings where seized in their groove.
I have since put on 15.000km more and the bike runs like new again and doesn't use a drop of oil.
Other things: all our rims are corroding excessive on the inside, especially near the valve and rimlock holes. This is probably cause by our adventure on the Salar de Uyuni where we got lost and found our self riding trough 30 cm deep brine....
I removed all loose corrosion with a dremel and coated it with some spraycan metalprimer. I haven't checked it again but my guts tell me I the primer is not really going go stop it.
Last but not least: In the beginning of our trip (after 10.000km) we found out that there was excessive play between the front sprocket and the countershaft. It turned out that the splines where worn... I am still not exactly sure how this happened but I suspect the aftermarkec sprocket was from a bad batch as it already had more play than the oem when I fitted it. Ever since I fixate the front spocket with loctite 680, have to repeat every 5000 km or so but the wear on the splines is not increasing anymore.
Peter
www.amsterdamtoanywhere.nl