I’ve got a 05 classic 600 with just over 2000 miles on it. I took it to the u p this last winter and I could run 60 mph but if I pegged the throttle it bogged down hard and did not accelerate. My initial thought was not getting fuel. The fuel filter looked perfect and I changed the plugs. The power exhaust valves were carboned up so I cleaned them up, spotless. Still does the same thing, can’t run over 6 grand or it loses power like crazy... so my only other thought is something broke in the clutches? Any ideas?