I relaly haven't looked hard for the VIN number, just breifly and didn't see it. Where are they marked on ATVs? I assume somewhere on the frame.
I know on most motorcycles they're marked on the neck behing the triples.

 

Depends on the year and model, but most of the time you should look on the left side lower frame, near the front.

 

I have a 1998 500 Quadrunner. I believe the VIN number on it is right side, rear frame, in the area above the right rear tire. It has been a while since I had to look for it, so I am going from memory and I am not at home right now. If you have an owners manual, it usually tells you where to find it.

good luck

 

Thanks!
No onwers manual, this one had been sitting a while. They didn't even have the axles that were taken off for whatever reason