This is an old revision of the document!
The HS40 is a Flat slide Mikuni Carb.
The stamping on mouth of this one reads “T40 6W” . The jets included in it are in the pic to the right. 1) 2)
Trace: • IH: Engine Mechanicals - Sub-03F • REF: Carburetor, Intake Manifold & Exhaust - Sub-01N