Topic: Air screws

[Dinola]

I have a 1976 550K with Type 1 carbs.  Should the air screws have an o-ring on them?  None of mine do but SCI sells them and the 550K is on the model match list. 

[lucky]

I have a 1976 550K with Type 1 carbs.  Should the air screws have an o-ring on them?  None of mine do but SCI sells them and the 550K is on the model match list.

Do you mean the mixture screws?

[harisuluv]

No there is no o-ring that goes on the early style 550 carbs, the PD carbs do call for an o-ring though.

[Dinola]

Ah, i see, and that accounts for the odd listing at SCI.
And,, yes Lucky,, I guess that adjustable screw is called the mixture screw.
Thanks guys

[TwoTired]

Ah, i see, and that accounts for the odd listing at SCI.
And,, yes Lucky,, I guess that adjustable screw is called the mixture screw.
Thanks guys

No, Lucky has it wrong for your style carbs.  They are indeed air adjustment screws, and Honda calls them air screws in the shop manual.

...And, they don't have orings.   

[lucky]

Ah, i see, and that accounts for the odd listing at SCI.
And,, yes Lucky,, I guess that adjustable screw is called the mixture screw.
Thanks guys

No, Lucky has it wrong for your style carbs.  They are indeed air adjustment screws, and Honda calls them air screws in the shop manual.

...And, they don't have orings.   

I was asking a question.
I was NOT saying he was wrong.
Some mixture screws adjust the air and some adjust the fuel.
I just wanted the OP to kind of let us know which screws we are talking about since there is no photo.