Hello "sandfiend", and welcome to NSR-WORLD.

I have moved your question to the correct NSR250R discussion area to ensure it gets the most exposure.

As Rob says, you can use our Honda approved English Parts List, or you can find the final Japanese edition here: 87-89 NSR250R Parts List [JP]. (PDF page 43/Parts page 33)

Please note neither "mobile friendly", so should be viewed on a PC/laptop. (I'm working on it!)

Repeating what Rob says, it's largely irrelevant which piston you use, if the barrel is going to be replated. Send whichever piston is most readily available to you to the plating company along with the barrel, and have them plate it to match.

Service specifications can be found in our Honda approved English Service Manual.

NOTE: You must be logged in to the forum to access the English Service Manuals.
_________________
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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