You do have a carb problem and not an ignition problem. You said you reset the floats? I'm assuming this just started giving you trouble?
Make sure you followed the exact specs for the carb, bike and motor series. The specs can vary a lot, and since I don't know what your elevation is, you'll have to check for that as well. Mountain riding requires different settings then at sea level.
Make sure you blow compressed air thru all the jets, nozzels and any nook and crannies you can see. Clean means perfectly clean.
Check the float level needle very carefully with a magnifying glass, if the tip is dull, bent or nicked you'll need to replace it. A new needle will come with a new seat.
Make sure, when reassembling the carb, you do not force anything Make sure the float is not binding, everything has to fit nice and easy.
Make sure the air cleaner is not clogged, and make sure the throttle cables work nice and smooth.
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