Pekar K68Y Carburetor for Ural and Dnepr 650cc flat twins. 54mm mounting stud spacing but can be modified for later 50mm US Mikuni heads free of charge. New in box.  Alternative main jet sizes available. Fast shipping. Sold individually. LH and RH available. Orders of two carbs will be a LH and RH pair unless requested otherwise. Listing and price is for ONE carburetor.