Just picked up a race prepped KX85 for my son yesterday.
I do not have a manual for this bike and the rear is really soft. Does anyone have a manual and can tell me what the sag, etc. is supposed to be for this bike? Rider is 110lbs.
Sounds like a good place to start.
The rear seems really soft right now with only about 20mm of thread showing above the spring clamps.
Since my sons KX65 shock is 78mm of thread showing above the clamp (as per the manual), I would assume the 85 is way soft.
It may need a different spring too but I won't know till I get some base adjustment done.