The clickers move an adjustment rod that applies more or less presure on the shim stack. It's just a ball bearing that's under the load of a spring, which falls into and out of a hole as the shaft of the adjuster is rotated. Sometimes it's not really a click, but more of a stiff spot in the rotation. Usually each "click" represents 1/4 turn. You can confirm this but observing how much rotation you get between clicks on the one that does click.
Without having your shim stack in my hand I can't tell you if its rebuildable or not. What I can tell you is you can count the number of rotations from open to close, and multiply that by 4. Those are your clicks. Set the non-click fork to the same position as the click fork.
I have found on every bike I've had with adjustable suspension (including my FZ which has adjustable compression on the forks and rebound on the shock), without exception, that once I get the suspension set-up where I like it, I never revisit the clickers again. If something changes...then something is wrong. My hats off to the guys that make adjustments on every ride and additional adjustments at every stop. My guess is that they don't know what they are doing, or they are focused on the wrong things. Set it, and forget it.