Uh Oh........ I am not sure my bikes have those. I have two 350's a 450 and a CM91 that if they do have them they are stuck up in there and not recognizeable like was posted above. I know that my GL1200 has them in there though.
I dont notice any leaking around those pipes on any of my bikes so maybe they are there. I would imagine now that I think about it that it could cause some problems with heat that may not be taken away by the header pipes?
I think I will get the proper rings and put in new ones. Hopefully there are still some in there. I have never really paid much attention for them other than on my Gold Wings for some reason.
I'm guessing that the copper donut is so infrequently spoken of, that most don't even know about it. I say this because I didn't know about it until I looked at the fische. I thought that maybe my bike didn't have them. However, I just pulled 6 smushed copper donuts out of the head of my CL350.
Given that I found 3 of them in there, that's just bad form, right? I mean, it's not detrimental, but silly. A tack pry bar works great for poppin' 'em out.
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