Originally Posted by
SJG
I have run into this problem on several Fox forks. The equalization port is clogged with excessive grease from the factory. What winds up happening is you add pressure and it squeezes past and fills the negative chamber, then when you lower the pressure it can't get out. You have too much pressure in the negative, and it pulls the fork down (super soft).
It's a problem with Fox, I have fixed several on friend's bikes. And mine. And the bike shops don't talk about it, maybe they are trying to downplay it, or they don't know. But it's a very common problem from what I've seen, I've fixed lots for my friends. New bike, Fox fork, sucks down. "OK, here we go again".
You have to pull the lowers, and clean out the grease from the port channel, then re-assemble, and it will work properly.
FWIW, I typically run much lower pressure than Fox recommends in my forks. I'm 200 kitted and run 60psi on a Fox 36/170mm. High Speed Bros can run what's on the label, but that makes no sense for Joes.
Body weight in lbs is typically close to what's needed for the rear (shock), but 1/3-1/2 for fork.