GS550 Carb knowledge needed

[Rywilly]

I need to know what this is called - attached to the throttle... Is this a part that I can replace without getting a whole new carb?

 

[Rywilly]

Not sure why, but the picture is upside down.

 

[Caf3racer]

It's an accelerator pump and it looks like it just need to be rebuilt. Not that much up on current GS parts supply so I'm not sure on availability or source.

 

[Rywilly]

Thanks! I thought that's what it was called, but I couldn't find any diagrams of it included with the carbs or anywhere.

Appreciate the input!