Remove front fairing
Take off radiator cap
Disconnect the tube at the bottom of the rad and drain out
Take out the drain bolt at the front of the cylinder (if I remember correctly, just a bolt sitting there on its own at the front of the cylinder)
Disconnect the siphon tube from the top of the radiator and drain out the reserve container.
Idealy flush it out now.
All back together, supposed to put a new washer on the drain bolt, but I got away with not doing it.
Fill her up, I have no recollection of how much it takes, some of the other lads might remember.
Bleed it by letting it idle for 3 - 4 mins, rev it a few times, and top up the reserve.
Drive off into the sunset with a smile.
RQ.
The Stig of 2 wheels as well as 4 !