If I understand the problem, when you pull the clutch lever, it doesn't pull all the way in to the handle bars? If not please correct me.
Possible problems:
1. Clutch arm actuator lined up?
2. Cable pinched or in a bind?
3. Did you install the clutch/friction plates in correct order? (Friction, steel, friction, steel)
4. You made sure to install the rod AND ball bearing back in with grease?
5. You installed the plates in the CORRECT way? Look at the steel plates. On the outer diameter is it smooth all the way around? Or does it have a rounded edge/key/indicator on it?
5A. If it has a rounded edge and not smooth, you need to install every other one in a rotating fashion. Rotating them 60* clockwise. Otherwise it will send the basket out of balance and destroy the bronze bushing.