Marzocchi have manuals for most of their forks on their website. Including the 2001 Z4 as I downloaded it when I had a set.
Found some on endure seals website, never had anything air sprung apart before, always remember reading foxs manual for the float shocks and seeing possible injury splashed all over the place from taking them apart. Wondering with the problems I have with mine if I should have anything to worry about (fork seems to have 5mm travel and fully extended, as if over pressurised, even with no air in).
Giant MCM Team 99'
Muddy Fox Alu Comp 95'
Pace RC200 F6
Always out of breath and trying to loose the lard!