Yesterday I spent over 8 hours on my bike. Removed engine(had only 3 more bolts to remove). Cleaned up engine, frame and other parts from years of grease and muck... nasty near the chain area.
Removed tail parts and spent over a hour to install rubber flap there. Tried different ways but at the end I used large rubber flap to cover the whole area. Two bolts hold it under the exhaust bracket and two hold in place under rear luggage rack. Will see how it works out someday.

Keeping the AIS cause of the O2 sensor. But I blocked the pipe. Will remove the catalytic converter for better exhaust flow(cut cat open and then weld back together).

Greased rear swing bearings. Have two more bearings to do on the rear shock. Also cleaned up bolts from rust and greased them.
Chain rivets are done, getting stuck and pretty hard to move. The chain should have done more than 20k km's for sure. Will order new chain and sprockets with rear wheel dampers. Will do the mods to increase the life of them. Link: http://www.xt660.com/showthread.php?p=211578#post211578

Parts will be in the picture + Prox piston set ~150€. So around 680€for parts. 170€ engine work. +120 DID 520VX2 and JT sprockets. + Rear wheel dampers. So over 1k €..