Carb "experts": what does this thing do?

[starwalt]

That's it, but I still don't see how that narrow opening can pull enough fuel to affect starting, how it affected the normal running of my bike, and how my choke still worked when the hole at the end of the L on the float was completely clogged.

To find out what the OEM manual says about these parts of the carb, click on the image below...

[Egaeus]

I synchronized the carbs before I started any of this.  It didn't do anything.  In my email to tussey when he asked about my bike, I said that they needed to be synchronized, because that's what was causing the problem, but it didn't help.

Synchronizing the carbs also wouldn't affect the fact that when I ran on one cylinder at a time, the problem still occurred in the left cylinder. 

[Gisser]

I synchronized the carbs before I started any of this.  It didn't do anything.  In my email to tussey when he asked about my bike, I said that they needed to be synchronized, because that's what was causing the problem, but it didn't help.

I don't doubt that, but that's not the chain of events that you yourself report in this post:  http://gstwins.com/gsboard/index.php?topic=33403.msg372824#msg372824

[Egaeus]

I balanced the carbs, it didn't work.  I checked the spark plugs, they were white.  I check the fuel flow, it seemed sufficient.  I made videos, and posted my **HELP** thread.  I balanced the carbs 3 times total while trying to find this problem. 

[Egaeus]

Starwalt, thank god you were right.  I was hurting my brain trying to figure out what I did to fix it.  It is the choke, and it didn't fix the problem.  Whatever it was, it's back.  It ran fine for a few minutes, but it was short-lived.

[johnlaughland]

er... I've posted some info on your original thread....