My experience over the last 25 years points to Honda and Yamaha as being rather solid, with Honda being slightly more reliable and Yamaha offering more features. My 2005 Rancher 4x4 is still ticking along pretty well with a minimum amount of unexpected maintenance. My fathers fuel-injected 420cc 4x4 version is much the same. They take less work to keep going than the 660 Grizzly and way less work than the Polaris Ranger 800.
