are these the right rings for an 81' special

[FUBAR]

are they the right model # for an 81' special any body know?

http://cgi.ebay.com/ebaymotors/TWO-New-Nos-Yamaha-XS400-Piston-Rings-Ring-Set-s-1-0-_W0QQcmdZViewItemQQhashZitem53e79111d2QQitemZ360367329746QQptZMotorcyclesQ5fPartsQ5fAccessories#ht_1061wt_928

 

[drewpy]

if you have the sohc bike, then yes