Cylinder head valves

[adamax]

I have a couple of heads with worn valve stems.
Maybe the guides are still okay and maybe not, I will have to check.
Other than the very expensive valves from Yamaha :teeth angry:, what are the options of rebuilding those heads ( oversize valves? automotive valves? SS valves?
Thank you

 

[one2dmax]

Oversize are available as is stock replacement sizes. The last set I got for a build here at the shop were VERY expensive (at $50 a valve) but I am sure they can be found for less. Not sure though.

Sean