Please tell us ( Mystery of the Bobbling Yamaha )

[gordon stelter]

If I remember I adjusted key level and dip very
carefully, lubed the butts and took up lost motion,
and it went away. But that was with letoff at about
1/4" and checking all over the place. The music
minister and I then decided to "leave well enough
alone", lest adjusting these items bring the
"bobbling" back. 
     It does seem to me, though, that my post on this
issue brought numerous complaints from across the
globe, as if some Yamaha uprights are very prone to
this "bobbling" if they get even slightly "out of
spec".
    Thump
--- Alan Forsyth <alanforsyth@fortune4.fsnet.co.uk>
wrote:

> >>"Sorry about that. I attached my PianoDisc for
> sale
> notice to an earlier post from my archives about the
> now notorious hammer-bobbling on some new Yamaha
> uprights. And forgot to delete the earlier message.
>      Best offer over $200 gets this slightly used
> PianoDisc system, if anyone wants it.
>      Thump">>
> 
> So Thumpy, you never did tell us the outcome of that
> thread, the bobbling hammers. Last we heard was that
> you phoned Yamaha and they said to look
> at..................... and did it work?
> 
> AF
> 
> 



		
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