I wish we could help more, but we just not had anything to do with the NS250 yet.

What I would suggest is try to find out a part number for the small-end bearing and gudgeon (wrist) pin for the 125 and 250, and see if they cross reference at all. Also, we can often find out some dimensional specs from the Honda system, if you can come up with part numbers.

Maybe an NS250 parts manual off of Yahoo! Japan could help your quest.
_________________
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.

Check us out on Facebook! Please "like" our page!