First Look: 2017 Yamaha YZ And WR Off-Roaders
Cycle News Staff | June 20, 2016
Yamaha’s line of big-bike off-roaders is returning for 2017, including the YZ450FX ($8999), YZ250FX ($7999), WR450F ($9099) and WR250F ($8099) four-strokes, and the YZ250X ($7499) two-stroke. All have new graphics.
The YZ250FX received the same top-end engine mods as the 2017 YZ250F motocrossers (revised intake, new cylinder head, more aggressive camshaft profiles with new valve springs and larger valve seats). The YZ250FX also gets a new, lighter and stronger piston, and revised EFI mapping. The results Yamaha says? More power.
The FX’s crankshaft and counterbalancer feature revised balance ratio for reduced vibration. There’s also a new plastic skid plate and a larger (270mm) front-brake rotor. A fuel-level sensor has also been added for 2017.
The YZ450FX gets the same changes as the new YZ450F, which includes a new air-cleaner cover. Like the 250FX, the 450FX is now fitted with a fuel-level light. CN
The YZ450FX gets the same changes as the new YZ450F, which includes a new air-cleaner cover. Like the 250FX, the 450FX is now fitted with a fuel-level light. CN