Hello all I am looking for some advice I got all my fuel lines from tank properly hooked back up to the fuel separator. I know that this line I have arrowed runs from the charcoal canister to the carb float bowl but I think I’m missing a nipple unless I should put one on the arrow I have on the bottom of the carb it is threaded. Looking to see if this mysterious carb from a previous owner is compatible or if I should get a new one.