How concerned would you be if this was your cam chain tensioner? 1971 CB350K. I checked it because I was finding little bits of rubber in my oil last year (https://vintagehondatwins.com/forums/threads/black-bits-in-oil.14121/). I talked to my local mechanic today and he said he wouldn't do this job. He said jobs like these aren't money makers for him so he doesn't do them anymore. So unless I can find someone else nearby who will replace it, I might be doing it on my own if it's necessary. So hopefully it's not necessary yet.

