This mid-size ATV nameplate arrived for the 2005 model year as Kawasaki’s sport-utility 650-class four-wheeler, starting with the 4x4 version and appearing in Kawasaki’s parts and accessories catalog for 2005. For 2006 and later model years, Kawasaki expanded the line with the fuel-injected 4x4i variant, while the original 4x4 continued in parallel. The model established itself as a powerful, aggressive-riding utility sport ATV positioned above smaller farm-and-trail machines but below the later 750-class Brute Force family.
Across its run, the 650 badge was used for multiple related trims rather than a long list of totally separate nameplates, so its history is best understood as one continuous production era with evolving variants. Kawasaki’s official accessories and owner-center listings show the 650 4x4 and 650 4x4i through the 2013 model year, with no later 650 model years listed afterward. That makes 2013 the final model year for this nameplate’s first and only production run.
In enthusiast terms, the 650 is remembered as one of Kawasaki’s key early Brute Force machines: a rugged, performance-leaning ATV that helped define the company’s utility-sport identity before the larger 750 family became the focus. Its place in the lineup reflects the early 2000s shift toward high-output, independent-suspension ATVs that could blur the line between work and recreation.