Seems like decent ones aren't much cheaper then new.
My ex just sold her other sons 2023 for 2k
100% agree with this. We bought ours new. Never had any problems with it. Sold it for prob 1500 or so. Just easier to deal with. When bought new in the exhaust is a washer/restrictor that helps when they are first starting out. Then you can take it out once they are used to it. Just helps keep the power down.
Tips with maintenance:
Clean the filter every time you ride it. Even if it’s in the grass for 20min. Just clean the filter.
Learn how to clean the carb out. I cleaned mine all the time. Maybe every other ride. Always dirt in the bottom of the bowl. Never any issues. Just something I noticed. I credit the crappy filter for that.
There is an air screw carb mod you can do. I suggest it. It cleans the bike out much quicker and gives it a little more pep
Don’t forget about the oil pump. I ran mine and it was fine until it gummed up and I had throttle sticking issues. Just a little carb cleaner and a soft brush cleaned it right up. Threw some WD on it and it was fine.
Final suggestion is to buy a second OEM throttle cable and choke cable. My choke cable rusted out in the first few months which was odd. But it’s super thin. Just buy them and keep them in the toolbox. The throttle cable is 2 into 1, going from the carb (2) into 1 at the throttle tube. They connect together in the middle of the bike.
Handlebars are always a nice addition but my little guy was small so he didn’t need the higher bars.
I also did a clutch spring mod. Didn’t notice a huge change in power. But mainly jetting is the key.