fastmax
New member
I found this the other day, it explains what the yamaha part numbers mean.
http://www.tangedal.no/XJ/PNumbers.pdf
Prime example is the 800 piston rings. They are the same ring as the sx600
http://www.tangedal.no/XJ/PNumbers.pdf
Prime example is the 800 piston rings. They are the same ring as the sx600