Whether you are rebuilding the complete engine or just overhauling the
Valve gear drive train - the
Exhaust Valves and associated parts should be renewed preferably replacing all the interfacing parts at the same time - mixing worn parts with new can lead to premature wear of the new item.
You will probably wish to replace this related item:
14711GK4013
Renewing all the parts of the Valve gear assembly at the same time is advisable. Enjoy our user friendly online purchasing system, with competitively priced parts and ultra low shipping costs - no company takes Japanese motorcycle parts more seriously than CMS.