Topic: CB500 air screw Orings

[DavePhipps]

I just rebuilt the carbs on my 72 500 and found that I'm missing some parts. when installing the air mixture screws there were no O-rings. Does anyone know the size of these?
I would really love to get the cabs back together this week.

[72500john]

after studying the parts breakdown for the carbs i really dont think there are any orings there.

[Bailgang]

I don't think there's supposed to be an o-ring on the idle mixture screws either that is in regards to the 500/550 carbs nor have I seen a kit for these carbs that would have that small of an o-ring. I know my 550 k1 carbs never had them but that's not to say a PO removed them but they don't show up on any parts list either.

[DavePhipps]

Thanks guys.One less thing to worry about.