First a few links: (Let me know when you have them - I don't like leaving them 'shared')
600D Manual600E SupplementWorth looking atMight have a few more odds and sods but that should be enough bedtime reading to piss the missus off completely.
Been a few years since I had my 600 but from memory:
Take the centre strap fairing trim off
Remove lower fairing. Take it all off first time, but later you'll be able to take one side off only.
Pull drain plug.
Replace filter. I made a bent plate widget to stop oil from the filter dribbling onto the exhaust.
No other dramas that I can recall.
Tips:
1. Filter is exactly the same as certain Hondas - CB600 ~2002 if i recall correctly - back then I was able to Honda filters much cheaper - maybe useless info to you tho.
2. Many people get heated about this topic, but do not spend more dosh on bike specific oils. The only car oils you need to avoid are the ones with friction modifyers - read the label. Choose a good synthetic car oil and change it regularly. I use Mobil1. Car oil does not last long in a bike. Bike oil does not last long in a bike. Change regularly.
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