O-ring confusion...

[R100]

I believe the o-rings that go on the carb flange and the carb insulator are the same size, 28.5mm.
The two in my carb rebuild kit fit properly. There are two in my gasket set that are close, but too small.
I looked up the cmsnl parts fiche and the 28.5mm one (91301-253-000) has been superseded by 91302-PF0-003 which is 26.9mm. They are too small.

Anyone know what is going on here?

[R100]

After some more searching, I found reference to 16173-260-004.
It is 29mm rather than 28.5mm but the 2.4mm thickness is the same.

[G-Man]

Good info. If you just google the size you can get them here....

http://re-mx.com/index.php?route=produc ... uct_id=567

G

[R100]

Good info. If you just google the size you can get them here....
http://re-mx.com/index.php?route=produc ... uct_id=567
G

Thanks for that Graham. I was able to order them from my bike shop, but I will keep that website handy.

[Crispy1]

I found O-rings at Ace True Value. 30mm ID x 2.5mm section. Worked great. C.

[Jims65CA77]

Thanks for that Graham. I was able to order them from my bike shop, but I will keep that website handy.

What part number did you order? Was the O-Ring (91301-253-000) that you wanted for the Insulator? OR the Carb Flange? The one on my insulator seems "Smashed" and I was going to replace it. My bike a '65 CA77 Dream won't start and I am now thinking that it is a fuel related issue now and just "maybe" it is sucking air there? I Suppose that is possible.