Alright, so I have a 2003 KDX 200 that is in very good overall shape, I have always kept up on maintenance and all the bearings have been greased regularly. I let a friend of mine race it in a hare scramble and all went well, however, when I went to hop on it the other day I noticed the rear shock did'nt feel right. The suspension compresses like normal until about a quarter down and then it stiffens up. It doesnt dampen gradually. I tested my dad's KDX and it was harsh in comparison. I suspected a worn out spring so I replaced that. That did not solve anything. The shock with out the spring compresses and returns like normal and the seals arent leaking. I suspect that it could be worn out shock oil but I don't see how old fork oil could cause this problem? Any ideas?