Originally posted by BigD800ZRT@Dec 14 2002, 12:53 PM
I have the same problem on my '98 ZRT. We've changed the springs to AC's big boy springs and had no real effect on the rear suspension returning to full upright travel after sitting on. Had to get off and pull it back up, but it at least this time it stayed upright and didn't sag again. As far as I understand this, and have been told by a number of long time sledders, the springs are there to aid in absorbing the bumps and ridges, in conjunction with the shock, while riding. Installing the big boy springs provides that addtional pre-load to counteract your weight on the suspension in trying to keep it from bottoming out as often and provide you with a better ride. That is primary effect with the bigger springs. But, I find it hard to believe that the suspension is "suppose" to have some sag or designed sag in it. My bud has a 95' ZR700 sittin' right next to mine and when I sit on his and get off it pops right backup to full extension. He also has a brand new '03 F7 sno-pro and when I sit on it, it barely budges and when getting off, it returns to full extension.
Also, I have changed the front skid shock's spring and tightened it. I am now in the process of replacing the rear shock, since it is OEM and five years old (I have had many good suggestions from this forum as to which shock I should replace with. I'll let you know which one I use and how it works out) and I'm going to install taller spring slide blocks to increase the preload even further (I'm bigger than you). Then I'll just have to tweak the adjustment settings to get it to my ride style. The coupler block suspension upgrade has also sparked my interest and I am now researching that as an option, if none of the above resolves the issue to my liking. Good luck.