Hellow Warren, and welcome to NSR-WORLD.COM.
As I expect you have already read, we are unfortunately very short of info and experience regarding the NS250F/R, but hope to see more of your progress in due course.
If we start to generate more posts and interest, I will look into obtaining a Service Manual and scanning/publishing it. We do already have an OEM Parts List available here which may be of some use:
https://manuals.nsr-world.com/view-ns250r.php
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Andy.
NSR-WORLD.COM
Please keep all responses to Forum posts on the Forum so that others may benefit.
Please DO NOT PM me for technical advice. My time is precious, and you will probably receive a faster response on the Forum anyway.
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