When I bought my Honda PCX 150, it was already a few years old. But with a little over 800 miles on the clock, I thought it was a good bargain. There were a few minor problems with it. I noticed that the turn signals were repaired on one side. I also noticed that the tires were original. I later saw that there was a plug in the rear tire from a previous flat.
The plugged tire became a headache for me. As the tires were old, the rubber started to crack, particularly where the plug was. This started a slow leak. Eventually, the plug would just fall out. It was such a task to find a replacement tire. And coordinating the replacement was more difficult as the shop is only open weekdays.
Fortunately, I found a bunch of videos on YouTube on how to perform repairs and maintenance on my scooter. I wound up removing the rear wheel and taking that to the shop by itself rather than transporting the entire bike.
Later I learned how people can change their own tires and balance their own wheels. I don't know that I'm ready to do that. But it's good to know that I could do it, if needed. The main challenge is finding the parts.