The Yamaha Raptor 660R is a sport all terrain vehicle made by Yamaha with a 660cc, single cylinder, five-valve, four-stroke engine. It is designed to perform well in every riding condition. Yamaha sold the Raptor 660 from model year 2001 through 2005. The Raptor 660R was replaced in 2006 by the totally redesigned Raptor 700R (686cc).
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Yamaha Raptor 660 Wikipedia(Text) CC BY-SA