Does 2006 Ruckus have multiple carb types?

[unwired]

Have been having carb issues even after multiple disassemblies and deep cleanings and have contemplated just buying a whole new carburetor to get the Ruck up and running and to eliminate the carb as the culprit. Even thought it may not be the worst idea to maintain a clean spare carb. While perusing Ron Ayers I realized that there are several different part numbers. Is there any difference?

Here is what was listed:

011 16100-GEZ-613 CARBURETOR ASSY. 1 $135.41
011 16100-GEZ-671 CARBURETOR ASSY. 1 $149.15
011 16100-GEZ-672 CARBURETOR ASSY. 1 $149.15
011 16100-GEZ-673 CARBURETOR ASSY. 1 $149.15

Obviously 3 of them are the same price while one is a little less expensive.

May not take the plunge but was curious if there really was any difference.

Thanks,