check washers. If you put them back on different than they came off..dont always work out
Flip scooter over and loosen bolts free spin and get close to where you need
Hand tighten bolts and flip over
Roll forward about 5 feet and tighten bolts.
Or buy some freeway rated solid tires with mesh steel inlay for a 10 in split rim and never deal with having to take off your tires , add stability, increase 0-30, and never get flats again. They self stabalize once you roll them forward a few feet as well.
Oh wait. Only person to have those tires is me.