OKO 30mm Carb?

The OKO carbs are known for being hard to jet. Most people avoid them.

A few run 34-35mm

I have a 28mm mikuni which is just fine
 
i use a 30 oko with no problems you just have to clean them out a little more often but someone who owns a quad should be cleaning out there carb yearly and not find it a chore to do so to begin with. i clicked on the 34mm as well and that also says $40?????? great addition to any bike