carb help

masonxs650

XS650 Member
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columbus ohio
anybody have any info on these carbs im wondering how to hook gas lines up and if there are any vacuum ports iim a newb when it comes to this stuff, the manifold doesnt have any vacuum ports and the petcocks aren't vacuum either, any ideas would be greatly appreciated
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They look to be XS400 carbs. The fuel line attaches with a banjo bolt off the left side. Look at this link for reference.
 
They are not xs400 but I do think they are of a gs400/450. The ports on the front mouth and the drain bolts on the bottom are not xs400. The ones on the right are the xs400 carbs. (80-82 style)

s-l1600.jpg s-l1600 (1).jpg
 
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