Mana, when you say the wheel damper, you mean the cush drive, correct?
I recall having the same problem with my chain, If I recalll correctly, the chain had about 23-24k miles. The clicking would would occur when I would tighten the chain to nearly the final reference mark on the swingarm, of course, upon replacing the chain the clicking noise went away. I'm not saying that it's your chain, but try and leave the chain a tad looser than what the repair manual suggests and see if you get the grinding or clicking noise...