Dave Ett wrote:Er, whatever it says in the parts manual!

If you go to the crankcase diagram, and read the notes it gives the specifications...

http://workshop.nsr-world.com/11kv3lj7/2FK11KV3LJ7/Notes/F2.html

I don't have that info in my parts book, is that another one of those 21 only deals.

Also I noticed in that link it calls for the ring end gap to be 55mm with 65mm being the service limit.

In this link:

http://www.nsr-world.com/workshop/rebuild/page-4.htm

It lists the ring end gap to be 30-45mm with the service limit at 50mm.

Fonty thanks for the suggestion, this is the kind of info I'm looking for. I know you guys on the other side of the pond do a lot more racing with these bikes than we do here and a racer specification is usually different than the stock specification.