Missing o-rings in carb connector?

I had a leak in my carbs, and narrowed it down to my central t-connector:



Here's the thing though: looking at the parts diagram though, I see there are o-rings on the side, but there were none in mine. Now, this t-connector seems a little different, as it's rubber-coated. My question is, is this an aftermarket connector? If so, I don't think I can fix the leak with o-rings, as there's no place to install one on this thing, and assume I'd have to buy a new replacement.

The two side connectors look ok:

 

Wirehairs - Yep the "T" connecter from my 550 carbs is exactly like yours, no "O" rings, just rubber coated. I had my rack apart over the winter and replaced the "O" rings and throttle shaft seals however the "T" connector looked to be in better condition than what I'm seeing on yours. I wonder if Chacal has replacements?

 

I was just about to say "get ahold of Len on this one." Yes, some of the 550s have the "rubberized" T-connector with no o-rings. Chacal has OE replacements plus he also carries a machined-brass aftermarket replacement that uses o-rings like the straight tubes do.

 

I just bought a machined aluminum T on Ebay that has four replaceable O-Rings on it. It was $20 including shipping. Do a Search for FJ600 Carb. It will pop up. It fit like a glove.

TR