Great to hear another MC16 is going to get rescued! They're a great bike once up and running properly. Certainly well ahead of its time compared to its contemporaries.
There are some members on here with some very trick HRC spec MC16s that may be able to help you out, although they don't post a great deal at the moment, as work and general life just gets in the way. One of them has just taken delivery of another HRC MC16 from Japan over Christmas though, so hopefully he'll get around to posting about it soon.
Please check out the Members' Content where you will find our Honda approved English Service Manuals for the MC16/MC18/MC21 and MC28. These should help you with some of the issues you may be having.
Make sure to add a "wanted" advert in the Classifieds section, as that can often yeild results for hard-to-find parts. You can often find what you need on Yahoo! Auctions in Japan, but of course those parts do come at a bit of a premium, as you need to pay an agent and the shipping fees, but it's an invaluable resource for rare parts. You can use a proxy company such as https://buyee.jp/
Feel free to post in the main NSR250 Discussion section for more visibility, but please don't cross/duplicate post. The "Members' Builds" page never quite took off as I envisaged, so you may do better posting the the busier area of the forum.
Anyway, check out the Service Manual to see if that can help you more forward a bit, and I look forwards to hearing more about your project soon.
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Andy.
NSR-WORLD.COM
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