Cooling body on Mikuni???

["Dan Heinze" <dth104@email.psu.edu>]

Mikunis have an optional cooling insert that fits between the accel pump and
the carb body.  It has two hose connections (in and out I guess).  The
Mikuni manual shows the item in the parts diagram, but there is no mention
of it anywhere else that I can find.  What circulates through the cooler
(fuel or engine coolant) and what's the correct way to plumb it?

Thanks/Dan ('68 2000)

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