Last year I installed Barnett clutch plates and springs in my CB400f. I found it impossible to adjust the clutch to eliminate drag. I figured that if I let the disks wear in a bit it would be OK. Well I finally gave up and decided to put the original equipment back in. I immediately found out what the problem was when I measured the thickness of the friction plates. The stack of plates was over a mm thicker than the stock stuff. Replacement of the old friction disks and springs completely fixed the problem. But --- now I find that down shifting gives the feeling of resistance, a bit more force required. Up shifting is just as smooth as silk. Could I have done some damage to the shifting dogs during the period of incomplete clutch engagement?? If so what must I do?
