Help me find a yard kart for my kids

I would safely assume that the snowmobile engine is the reason the left rear tire is polished smooth :-) Do share some videos!

In reply to dherr :

Actually, when Jacob bought the kart, both back wheels were like that. I put a rock through one, so one is new, but in the grass it doesn't really affect anything much. More coming soon...

$150 all in, it will need some stuff in the nearish future but the kiddos love it (so does their dad haha).

I had set a $100 limit but this one popped up Christmas Day for $200 and he took my offer so here we are. Re-seated three tires, cleaned the carb, adjusted the the tittle cable and took the wrong size brake off (it stops pretty well by letting off the gas) and that's where I am now.

This guy has a good youtube channel about building stuff from junk, and has a EV carts..

https://www.youtube.com/watch?v=mlA8akazQvI

Update on that 440cc 2-stroke go kart we built, I got the build video online: https://www.youtube.com/watch?v=BZ5RoAtGmlM&t=6s