Does this valve look ok to you?
So I had a melt down in my r69s, lean carb + advanced timing + who knows what. Got the new pistons from vech, bores done, so I'm looking at top end stuff now. The chamber looks ok, scraped a little melted piston from the inside, but it should be ok. I'm going to pit some pics, so if you all think things are toast, let me know. Thanks!
Here's a better pic of the exhaust valve seat
Here's a better pic from a "real" camera of the valve seat.
RE: Does this valve look good to you?
Looks are not really that much of a consideration. You have to do some measuring and examination here.
1. if you mount these valves in a valve grinder, or a lathe, by the stems, and turn them slowly, does the face of the valve turn true? Lots of heat can warp a valve. If they are warped, replace them. Forget grinding them. New ones are not that expensive.
2. Due to the lack of lead in gas, the valves all wear on the stem, where they run in the guide.
If the valve passes the test described in #1 above, measure the stems, in various places, down the length. Is it consistent? If not, replace them. How does it fit the guide? Is it time for new guides?