The 1986 Yamaha YZ 250 is a legendary motocross bike that has earned its place in the gallery of dirt bike history. This machine was designed to be fast, agile, and reliable, with a 249cc, liquid-cooled, two-stroke engine that produced a healthy 47 horsepower. The YZ 250 also featured a fully adjustable front and rear suspension, disc brakes, and a lightweight aluminum frame that made it easy to handle and maneuver on the track.

One of the most notable features of the 1986 Yamaha YZ 250 was its “Power Valve” system, which allowed for better low-end torque and improved throttle response. This system was a game-changer in the world of motocross, and it quickly became a standard feature on high-performance dirt bikes.

Overall, the 1986 Yamaha YZ 250 was a formidable machine that dominated the motocross scene in the mid-1980s. Its combination of power, speed, and agility made it a favorite among racers and enthusiasts alike, and it remains a sought-after classic bike today.