I've been working the forks on my '87 XR600 and think I found a big problem.....the threads on the steering stem are almost non-existent. I can only get the nut to engage a few threads. The nut is fine. When i bought the bike I found that the steering stem bearings where almost ground to dust, I replaced them and noticed that the threads were sparse, but it seemed to work ok. Not anymore. There is not enough material left on the stem to try to re-thread. Anyone have a steering stem from a '85-'87 XR600 that they need to get rid of? Thanks.