preload on fork tightening as riding???
 

Any idea what would make the preload on my right front fork tube tighten while riding? It goes about 1/4 turn every 50-100 miles depending on how I ride? Been doing this ever since I got new springs and valves put in by a dealer a long time ago. Left one is fine. But strangely, the right is TIGHTENING, not even loosening the preload.

Incorrectly cut or installed spring spacer?

how might that do it? if you guess that, what would I look for?