2014 Yamaha YFZ450R Features & Benefits

New for 2014: All-new engine settings including a new ECU and an increase in the compression ratio add power output while dramatically increasing mid-range performance. New assist and slipper clutch uses lighter clutch springs which results in a lighter clutch pull to reduce racer/rider fatigue while reducing the effect of engine braking while downshifting. New throttle body assembly and muffler shape combine to improve throttle response. All-new suspension, including new fro