The filter element features reduced airflow resistance and intake noise combined with increased reliability. The new filter and the length of the intake funnel contribute to an excellent feeling of traction and linear characteristics during acceleration and deceleration. Plus, dust filtering capability is increased by adding rubber seals to the centre positioning pin.
The new model’s liquid-cooled, four-stroke, electric start engine features an all-new cylinder head with a larger and improved intake port shape and new exhaust camshaft profile straight from the MXGP dominant YZ250F. These mods, along with other refinements like revised engine balancer and gear shift cam help to produce stronger mid to top-end power and increased peak power, while retaining class-leading low-end torque.
Improved braking performance is achieved with newly engineered lighter front brake caliper with larger surface area brake pads and redesigned front 270mm disc. A new speed sensor ring sends information to an all-new user-friendly multifunction meter that houses both engine and low fuel warning lights.
Settings on the industry-leading, fully adjustable KYB coil spring-type fork with enhanced speed-sensitive damping have been revised to suit the new machine and off-road conditions. And the link-type rear suspension features a KYB shock with revised damping characteristics to match the updated chassis.
Riders can adjust their engine performance straight from their smartphone using the onboard wireless connectivity through the free of charge Yamaha Power Tuner app. Once settings are dialled-in, you can choose between two user-defined ECU maps on the fly via the handlebar mounted dual-mode engine map switch.
Tuned specifically for the 2022 WR250F, the updated lightweight aluminium, bilateral beam frame and new engine mounts have been redesigned with all-new flex characteristics to improve bump absorption, traction, and cornering performance.
New Dunlop Geomax EN91 ISDE-winning tyres have been specified with new profile, overall weight saving and better performance over a wide range of conditions.
A slimmer and more compact multifunction display is specified for the WR450F. The display features an odometer, two tripmeters, a clock, timer/stopwatch and a new and very useful fuel consumption indicator, while low fuel and engine warning lights are now built into the display. This increases their visibility and makes for a neater area around the instruments. The layout of the display has also been redesigned, with a higher-contrast liquid crystal display and white background ensuring improved readability.
A bar-mounted dual engine map switch has been adopted and positioned next to the left lever to enable changes in the engine power delivery characteristics mid-race. This switch allows the rider to select one of two engine maps on the fly at the press of a button to cater for changes in the riding environment. This means that when the going gets loose, steep or muddy – high traction can be accessed at the press of a button.