A few hose routing questions (CARB equipment)

[Badot]

I'm working on getting rid of the heap of useless CARB hoses on my new-to-me GS500 (especially useless due to the fact that the evap can is gone...) and I had a few basic questions.

First, how much air is pulled in through the upper T atmosphere vent on the carbs? I don't see a filter on any of the diagrams I've found, but would it benefit from having one? There's currently a UNI foam filter in there so I assume it's pulling a lot of crud into the engine anyways though.

Also, my gas tank has two lines in addition to on/res. I believe the large straight one drains rainwater/extra gas that gets around the filler neck, and the small curvy one is the overflow line, where other non-CARB bikes combine the two. Is this right?

And if the previous is correct... I assume the CARB bikes don't have vented gas caps and use the overflow for venting as well? Bike Bandit has the gas caps as different parts.

Thanks in advance.

[adidasguy]

Straight tube on tank next to fuel valve is overflow/water drain around the gas cap. A hose snakes down to the bottom of the bike for drainage.

Curved one is for CA models and is for an evaporative canister. You can cap off that line.

[Badot]

Curved one is for CA models and is for an evaporative canister. You can cap off that line.

Cool, so the CA gas caps still have vents in them so I won't have to worry about tank venting?

[adidasguy]

Curved one is for CA models and is for an evaporative canister. You can cap off that line.

Cool, so the CA gas caps still have vents in them so I won't have to worry about tank venting?

I do not know the answer to that. Perhaps a California member can answer it.