I just recently bought this used and need to find the make and model for parts. Found this on the side of the motor "J305122487" cant find any other VIN. Anything helps. As the bolts on this is soft and broke off.

 

here you go take your pick... Pretty much any 49cc part will fit
https://www.google.ca/search?q=49cc+...w=1920&bih=955

 

It looks like what here in the UK is called a Mini Moto. They are by far the cheapest and nastiest Quads available. The shop that sells them gives a warning before you buy, that they may not work, and will break down frequently. On the plus side, spares are also dirt cheap.