5 years ago I rode across Russia from Vladavostok to Latvia and then through Europe. You can see my KTM in the pictures. I had good luck and only one failure in Mongolia(a head gasket).
I met many Russian people and motorcyclists.
Who can not love the ISH.
I think you will grease the wheel bearings, steering head bearings and swing arm bolt and put on a new chain and sprockets.
I used this chain oiler.
I made it around the world on one chain but I needed two countershaft sprockets. Maybe you will take an extra countershaft sprocket with you.
Keep having fun!!!!