89 forks had internal fixed re bound. the top screw is a bleed valve. i have 89 forks on my 86, i can look up what iset my forks at, maybe give you a ball park. i probably have an old mx mag that would have specs in there. i have a oem service manual for 89 kx500, but i wouldn't be around it until early next week. will get you the baselines.
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