Wheel bearings felt OK, one side was a little less smooth. Decided to pop them out of the back wheel to check - these are ball bearings. 28 year old factory grease ain't really grease any more. Surprised only one side of the bearing has a seal but that's how they were. Could probably get away with cleaning and regreasing them but I ordered a $11 set of new sealed bearings anyway. Back wheel cush drive looks to be in good condition - new Kenda Cruiser tire spooned on. I think I finally have the carb fixed up. Popped it off for the five hundreth time, unscrewed the fuel screws (they are on the traditional "fuel" side, I think the Katriders FAQ is wrong), hit them all with carb cleaner on both sides of the passage, set them all to 2.5 turns and buttoned everything back up. It idles good now. No choke needed to start it when outside temp is warm. I think from this point on it just needs to be ridden with some clean gas.