I had heard people mention the orings and I saw them on the microfish, but it took me a while to notice the orings on my boots... beacuse they did not at all look like orings, just looked like a darker area of the boot, somewaht like yours. THat darker area there is what used to be a rubber oring, yah. And that is why someone had to add the sealant.
Do find the Cycle O-Ring web site (a fine GSR member providing us that service) . ANd get a set of replacement screws from him also.
ALso concider replacing the boots.
THose may crack on reinstall(if they aren't already).
Will be expensive, like, 35-40 bucks each.
And with fresh boots the install and any subsequent carb removal will be so much easier.
.
There seems to be a consensus among you gents that replacing the boots is the best move. So yeah, I'm going to replace 'em. I definitely want a nice seal, and not have to pry those carbs off again if I can help it.
Comment