Fuel petcock vacuum oring

[JayDee24ca]

Can anyone provide me with the correct oring size for the vacuum diaphragm shut-off in the fuel petcock (1980 vintage)? The one in my tap is pretty dried up and crusty, and rather than just going by guess or by golly, it would be nice to know the actual original oring dimensions while I search for a replacement.
Thanks
JD

 

[Jim]

You talking about the itty bitty one on the vacuum valve itself?

 

[JayDee24ca]

Yep, that would be the one. I am presuming that that one is the one that crustifies (new word) and prevents the petcock from fully closing. As the tap on my bike lets fuel through when it shouldn't, I want to replace whatever is keeping it open.

 

[Jim]

Have a read here.
If I hadn't already gave all mine away, I'd send you one...

 

[JayDee24ca]

Beautiful! That's exactly what I needed to see! Thanks man!! I'll head down to the FLAPS tomorrow and pick one up.