I had a 500ss that would not smoothly engage. Almost impossible to load on a trailer as you could not make small adjustments, it would move a foot each time clutch engaged.
I knew this wasn’t right. My 600 HO has a higher engagement rpm, but I can inch it along easily.
Took the clutches apart, cleaned out old debris and dust, made sure everything moved smoothly, installed and adjusted a new belt. Instant success. Much more driveable.