I would say mckutzy is correct.
Be interesting to see where the two hoses go to at the rear.
The oil fill hose may be the new vent and or the drain for vented oil mist to return to crankcase.
No doubt the reason is because the air box has been removed, so no return to that.
As far as buying it I wouldn't touch it with a 10 foot pole, unless its advertised with a bad engine.
That carb intake would be vacuuming the dirt off the front tire.