We ride the 2011 Yamaha YZ250 to see how the updated Japanese two-stroke compares in today’s thumper-filled world of motocross. Check out the full story in our 2011 Yamaha YZ250 First Ride.
- Changing lines through rolling whoops is simple and picking lines through corners leaves riders plenty of options.
- The silencer was increased in length by 75mm and the core diameter swelled from 27 to 30mm. This allows for 66% more glass wool and the decibel output is now a claimed 96 dB.
- Fortunately for Yamaha, and all aspiring racers, the AMA now allows 250 two-strokes to race alongside 250F machines in amateur competition.
- None of our riders complained about the shock, but sorting the fork took some effort.
- Yamaha altered the 250 cylinder head to increase the volume by 0.5cc and dropped the compression ratio from 10.9:1 to 10.6:1.
- Our faster riders were keen to keep the bike singing at all times and had no complaints about the Keihin carburetor.
- All of our riders liked the lightweight (227 pounds claimed) feel and responsive aluminum chassis.
- For amateurs competing in the 250 class, the YZ can be a viable option for collecting trophies.
- Getting the bike to turn in rutted corners takes almost no effort and the bike glides through rough corner entries with little concern.
- Yamaha hasn't done anything radical to the YZ250, but it still has a powerful, responsive engine and agile handling.
- Climbing off the multitude of four-strokes and spinning laps on the YZ250 is a breath of fresh air, especially for those who like to whip.