Fuel Petcock Question 87 Honda CBR250R

Hi, I recently purchased an 1987 Honda CBR250R & removed the tank to do something and noticed these two small pipes on the Petcock had no pipes on them. So wondering where they should connect to, One did have a hose with a screw in the end shown in the image but don't which one that came off, any help would be great. Thanks

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Fuel Petcock Question 87 Honda CBR250R