To start off, our Bricks' forks—the Showa included—are conventional forks. They have no simple preload adjuster for sag. Sag is the amount of fork movement from unloaded and to loaded with a geared-up rider in riding position. Preload adjustment is done by changing the length of the top spacer in conventional forks but change spring rate can also affect preload. The diagram for Showa parts is attached. Its from the MaxBMW parts fiche.
I went to the Race Tech site and found general instructions. Our Bricks are so elderly that setting sag in the old way is barely covered. Emulators are the way to go. Mighty Gryphon, a member here, had good results with them. Maybe he'll chime in. Regardless,
here are the instructions I found. Are the tubes still assembled?
