http://www.valkyrienorway.com/ has lots of stuff, including a Honda Valkyrie Shop manual PDF
and a video of Dag working on his forks without removing them from his bike (I haven't looked at the
video in a while, hope I'm not describing it wrong...)
I changed my fork seals using the manual, which lists all the possible wear parts, and has a step by
step procedure to follow.
There's a honda special tool specified in the shop manual, a VRCC member from this tech board loaned
me his when I posted here asking if anyone had one they'd loan.
I've taken cartridge forks on dirt bikes apart a bunch of times, so I knew what to expect to find on the
inside of a set of forks, but parts is parts and the manual is clear, it is not a big job... Stanley Steamer
sez I have a lot of patience, so that might help too

Each side is different, the special tool is needed only on one side. Each side has giant spring, of course,
and it is compressed and so one of the first steps on each side is to overcome that compression and
get the spring out... for less that $100 you can replace the springs with Progressive (brand) springs
and change your forks from adequate to awesome...
Here's me using a plumbing elbow to mash down on the rod in the left fork to release the spring pressure
so that I can unscrew the retainer... the special tool is for the right side, I don't remember much about
that other than it is no biggie if you have the tool...

-Mike