As i understand it the 85 models have trouble with water getting into the rear axle/differential. Plastics are available from maier, but if yours are only faded search the site for restoring plastics, there's a few very informative threads on the subject.
I've heard of heating the seat pan to bend it back, but i've never done it myself.
86 tri z - might be nearly done throwing money at it! (good thing, the hondas are getting jealous!)
86 250sx - old reliable
83 atc 70-new project for me and the boy
another 82 110
a bunch of golf carts for the wife and kids
-gone but not forgotten-
82? 110 - why did i sell it??
84 225dx - meh, it was a pile