I just bought an ATV with no marking on it. It did have a VIN number but when I ran it, it told me I had a 2005 ATV made in Thailand but it could not tell me the make or model ( it told me model is unknown).The VIN number is RGEFE15C15A000197.

 

Armstrong Industry. 10th digit is the year model. Shows 2005. http://www.vindecoder.pl/RGEFE15C15A000197 As to what model it's called, you may be able to trace it down from this info.