Wait a minute, How many miles is on your bike? Remember the fork oil, unless its leaking at the seals, should be fine a long time. If you have issues with the front shocks, thats fine but otherwise leave it be. Is the front shocks bottoming out? If thats the case, it might need front springs. If the seals are not leaking and it bottoms out, too many wheelies and the springs are bad.
warchild48