Introduced for the 2004 model year, this pure-sport ATV marked a major step for Yamaha’s sport lineup by bringing a liquid-cooled, DOHC five-valve four-stroke engine into the category. It was developed as an aggressive performance machine for riders who wanted a race-oriented quad rather than a utility-focused all-rounder, and it quickly became one of the most recognized names in sport ATV competition and recreation. Early coverage from Yamaha highlighted its light, compact chassis philosophy and its close connection to the company’s motocross engine development, which helped establish its reputation for sharp handling and strong performance.
Over the next several model years, the nameplate evolved through incremental updates rather than a full redesign. Yamaha refreshed details such as suspension tuning, controls, and other spec changes to keep the model competitive as the sport ATV market matured. By the late 2000s, Yamaha had also developed a successor variant with updated specification and positioning, while the original model continued through its final year.
The nameplate’s production run ended with the 2009 model year. That final-year status is important in Yamaha’s ATV history, because the model helped define the company’s performance image in the sport quad segment before later Yamaha sport ATVs moved toward revised naming and newer chassis concepts. Among enthusiasts, it remains remembered as one of the foundational modern sport ATVs and a benchmark for Yamaha’s early-2000s performance off-road era.