Young Chang lyre supports buzzing

[Jon Page]

You could place a spacer on top of the top bracket to
place more strain on the prop rod. If that doesn't have
a positive effect, plug the holes in the key bed and
move the bracket forwards to increase the pressure.

I looked at a YC Weber in my shop and the rod has a
little play on the pin. You could get a larger diameter pin
or ream the hole in the rod and insert a bushing.

In the fastener isle of most hardware stores there are
bronze and nylon bushings. Perhaps one of those
could suit and be more durable than cloth.

See, it does pay to browse to see what's on hand
for that McGiver Moment.
-- 

Regards,

Jon Page