any idea where the air is leaking from ?
bottom nut seals, main seals or air valve ?
No idea sorry
although I suspect the main seals as after a very long ride there has been a tiny tiny bit of oil on the tops of the legs.
It is a tiny amount and only noticeable on dry rides when dust sticks to but to be honest I know nothing about the internals of these forks
so would the main seals cause them to lose pressure
Yes, the air is in the bottom of the leg (well unless the design changed a lot from the S-Fly which these evolved from.
though if a small amount of oil came out, then well there is only a small amount of lubrication oil in there with the air that can get out. The large amount of damping oil is sat in them there gold stanchions.
But it is lubrication oil and it would have to get out of two seals (main seal and the dust seal and could just be oil sat between the two).
could be the valves need tightening a bit though.
But they are readily available as are the bushings.
I'll go double check though to see if I'm talking bollocks.
I only really know the '99 S-Fly's
EDITLooking at the manual http://www.enduroforkseals.com/sitebuil ... _x_fly.pdf
they are identical inside apart from travel length. infact only the new brace style and air valve place is really different.
Good forks and easily serviced if they needed it.
I cannot justify buying them though (having no bike to put them on doesn't help