Carburetor

[tch]

Hello all.  I'm in need of a left-side carburetor (the extreme left, outer one while sitting on the bike) for a 1987 Yamaha YX600 Radian.  I've called all 13 salvage yards in Michigan without success, and Yamaha discontinued this particular carburetor last year.  The markings on the carburetor read as follows:  1UJ DO F664.  Also, it's a Mikuni.  Any leads shall be greatly appreciated.  Thanks. T. C. Howery  VMOA #662