Re: [ST] Re: Possible bad Triumph valve design

["Philip Las Gourgues" <philip.l@xxxxxxxxxxxxxx>]

John wrote:
>
> The most common method is to put a spiral wound piece of flat steel on
> the inside of the spring the rubs its I.D. and kills resonance.

Ah, thanks for that. Is some form of damping used in most motorcycle
engines? I don't remember seeing any in my TT250 which is the only engine
I've stripped down that far but I could have just missed seeing it.

Phil
'02 S3


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