Its the largish hex head/plug on the RHS of the bike, near the bottom of the casing.
Undo, and there is a wire guaze tube inside which either:
a) comes out nice and easy with the plug or
b) needs an allen key to undo a small retaining bolt inside before removal
...as mine came out with the plug, I can't tell you what size the allen key is needed if you have that type!
Sure nelly et al will be along in a mo to tell you...
Well what do you know...speak of the devil
[Edited on 14-3-2005 by Harv748]