With the yearly changing of the fork oil is their a set amount to put back in the fork, or you must pull the spring and fill up to the 100m mark???? 2000 KDX 200 :silly:
4" = 101mm. Close enough. I changed my fork oil twice this year after a year of neglecting them. Once a year is fine though. I pull my springs out to get my homemade fork oil level guage to work. The only way to measure your fork oil is to pull the springs and compress the forks fully. Or you could chance it and just pour in the amount specified in the manual.
You could just meassure the amount you remove from each fork and put back the same amount. Myself, I like to remove the fork from the clamps, remove the spring and tip them upside down in a bucket to drain. Then put in the desired amount of new fluid. Don't forget to cycle the pull rod a few times to assure that the valves are flooded with the new fluid.
Lew