Tech/maintenance Baritone A cup doesn't lift.

[andyjb]

Hi, i have a Yamaha YBS 31 and when I press the low A key, the cup doesn't fully lift when I stop pressing the low A cup, so when I play low Bb it doesn't sound properly

It lifts partially when i stop pressing the low A key and can be pulled open by hand and I can then play low Bb. Has a spring fallen off? Thanks

 

[lydian]

The cup isn't supposed to lift when you press the low A key. It's supposed to be lifted when you release the key, and close when you press the key. If it's doing the opposite, the spring is backwards.

 

[turf3]

When you press the low A key, the low A key should close, not lift.

 

[andyjb]

Yes, my question was badly worded. When I stop pressing the low A key, the A cup doesn't lift. It used to lift. Is it an easy fix? Thanks

 

[Dr G]

Yes, my question was badly worded. When I stop pressing the low A key, the A cup doesn't lift. It used to lift. Is it an easy fix? Thanks

Check to see that the spring is in its cradle. If not that, then the mechanism may be due for cleaning and lube.

 

[lydian]

Also make sure you're testing it in playing position to your side, not laying the horn flat on a table. The springs may not be strong enough to work properly against gravity but work fine in playing position.

 

[andyjb]

Sorted thanks. It needed some oil!

 

[Ivan]

Sorted thanks. It needed some oil!

Sounds like it might need a more vigorous spring clean to clear out any accretions

 

[Colin the Bear]

Didn't they fight the Persians? 🤔