Hanging idle - don't jump to conclusions.

[tegboi]

One thing I noticed was that when I would start the bike with the kick stand down, and bike angled, it would run rough, but if I hold the bike upright, the floats being leveled, the bike's idle would smooth out a little. That's one reason why I figure the seat o ring was the culprit.

I've sprayed carb cleaner around the boot area with little idle changes, so I've removed them, cleaned, a thin coat of gasket maker in the large O ring seat and it looked to be completely sealed at that point, no cracks going through the boot, some light cracks inside of the boot area, but didn't seem like it would reach the surface.

sucking air, exhaust side?

The bike has roughly 19k miles on it I think, before the cluster was changed out by the previous owner, and I have no clue if they've ever had the valves adjusted when they had it.

[tegboi]

Replacing the o-ring of the float needle's seats seemed to do the trick in my issue.

It would hang before I touched the timing, still hung when I turned the cams one tooth clockwise (from right side facing the marks on the cam sprockets) doing so because I thought maybe the surface of the head/cover to the 1 (arrow) had to be off slightly forward, and still hung slightly when I first put the carburetors back on. Rotated the cams counter clockwise 1 tooth again, so the 1 (arrow) was pointing evenly with the surface of the head/cover surface, and now it's good to go.