From my experience back in 2004 -2007 most brand name buggies come with the 26 mm carb. Most of the off brand buggies come with the 24 mm carb. The 26 mm will be about 1/8 " larger inside diameter, outside is the same. From what I have been told but never researched for myself is the 24 mm carb was used on scooters. On a stock engine without any major mods either one will be sufficient. Since none of the performance cams offered are considered radical they will work with either carb. Many use the 30 0r 32 mm performance carbs but they technically are too big for that engine unless using an radical cam with a ported head. If your going to add a performance cam available with a ported head or 4 valve head the 26 mm would be better but as of lately I don't see many 26 mm's out there. I believe the downsize from 26-24 was due to EPA who started regulating emissions on our buggies in 2007.
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