The cluch actuation mec may be the issue.
My old curvey was heavy untill I striped and cleaned it up
Pull off your front sprocket cover and remove the clutch adjustment actuator mechanism. Make sure it is set on your push rod so that it rotates down when the clutch lever is pulled to disengage the clutch. There is an arm extending from it, that holds one end of the spring. It should be pointed towards the back of your bike at a close to 90 degree angle.
The other end of the spring is fixed on the bracket with the holes for the two 10 mm bolts to secure the actuator in place to the clutch rod, they should be tight.
Make sure you use the 10 mm spanner to hold the bolt with the flat slot screw in the middle steady while you turn the screw to the right until it feels like it just got tight, then back a quarter turn, and while holding the screw steady, use the 10 mm spanner to tighten the bolt.
