The adjuster at the top is the rebound damping adjustment. The one at the bottom rear of the fork is the compression damping adjustment. The manual calls for about 325 ml of 10 weight oil or 381 +/1 4 ml when completely dry after rebuild. The best way is to measure the fork oil level . . . 150 +/- 2 mm below top of for tube without spring full compressed. If it is a '96 or '97 these values are different.