Hello, I have an 88 NX250. I am looking for some info on the rear shock. The bike only has 5800 kms, but I find that the suspension is very soft in the raer. The shock goes down quite a bit with the weight off the kickstand. Is this fixable? I got another spring(don´t have a clue how to get the old one off) but will this fix the problem? What does anyone suggest? Thanks..