Changing shaft drive oil?

[Iwingit]

HI

As im new to a bike with shaft drive could to tell me procudure of changing the oil in the shaft.
Stopped today and found small drip sure its nothing to worry about , also what oil thanks in advance .

[snowy]

Check out online service manual:-
http://mototh.com/files/kawasaki/1400GTR/Kawasaki-1400GTR-Service-Manual.pdf
Section 11, final drive.
Easy job, drain bolt and oil filler / level cover removal, I use a large washer in a pair of mole grips to get that off!
Do it after a run so any dirt is still in the oil before drain.
Sure I use Hypoid 80/90 gear oil, aka GL-5, and DO NOT over tighten drain / filler plugs! 
Might be worth dropping the rear wheel to check oil drip is not from internal seal, never been there for that!
Good luck!

[virginiajim]

It's not supposed to have any drips at all.  Sounds like a seal starting to fail.  Where's it dripping from?