Hi all, I have an 05 1600 classic with 19000 miles. Long story short, over the last year my clutch has become increasingly sticky, to the point where i have to rock it back and forth up to 5 minutes before it will unstick the friction plates. Needed a new diaphragm spring so I figured an oil change would fix it when I replaced the the spring. It did not. I even have to rock it after only being parked for ten minutes. I generally ride to work every day so the bike doesn't sit for any period of time. When I changed the spring the plates and steel rings both looked ok, still oil grooves on the friction plates. Any thoughts? I'm running 10w40 dino oil. Runs and shifts fine once it's broken free. While it was open a pull of the clutch lever showed seemingly proper clutch basket release.