Overhauled 2022 Yamaha YZ125 Sneak Peak

Overhauled 2022 Yamaha YZ125 Sneak Peak

The new 2022 Yamaha YZ125 gets a full host of updates. (Yamaha/)

Yamaha is giving its YZ125 two-stroke motocross bike its first major overhaul in 15 years with its thoroughly updated 2022 model. The revisions touch nearly every major element of this off-road bike, from the engine to the suspension to the bodywork and beyond. The bike will be available starting this October with an MSRP of $6,899.

The package will be more powerful and nimble than ever before.

The package will be more powerful and nimble than ever before. (Yamaha/)

The 125cc two-stroke engine is completely revised, with new cylinder body, piston, piston pin, con-rod, expansion chamber, crankcase, and cylinder head. The liquid-cooled mill features the Yamaha Power Valve System to help improve mid- and top-range performance, while a new Hitachi Astemo Keihin PWK38S carb is mated to a new throttle position sensor and 3D-map-controlled CDI. The straight intake is revised as well, with a new VForce4 carbon reed valve for improved power, particularly in the higher rpm. The muffler is shorter and lighter also.

The 125cc two-stroke provides more power, particularly in the mid-and-high-rpm ranges.

The 125cc two-stroke provides more power, particularly in the mid-and-high-rpm ranges. (Yamaha/)

The braking package is improved with a more rigid front caliper, larger pistons, and updated rotors so riders can enjoy the enhanced feel of the increased brake pad contact area. Suspension components are new as well, with a fully adjustable KYB fork providing a leaf spring in the mid-speed valve. The fully adjustable KYB shock now comes with reduced-friction Kashima Coat internal components. The gearbox is changed as well, featuring new ratios.

The exhaust and intake systems are revised for 2022.

The exhaust and intake systems are revised for 2022. (Yamaha/)

The rear sprocket is new, the chain is new, the radiator now features a 10-row core with blacked-out louvers, the clutch lever is adjustable, and the aluminum handlebar can be set in two different positions. Yamaha also updated the graphics and the entire package rolls on new Bridgestone Battlecross X20 tires.

The YZ125 gets a new chain, rear sprocket, revised braking components, and updated suspension.

The YZ125 gets a new chain, rear sprocket, revised braking components, and updated suspension. (Yamaha/)

Ergos get a refresh as well thanks to a flatter seat and narrower fuel tank. The body panels are slimmed as well as the radiator shroud.

All together, the revisions equal a totally new machine that will allow the YZ125 to continue to hold prime position for up-and-coming racers and off-road riders.

Every functional element of the engine is new.

Every functional element of the engine is new. (Yamaha/)

2022 Yamaha YZ125 Technical Specifications and Price

Price: $6,899
Engine: 125cc, liquid-cooled two-stroke, reed-valve inducted
Bore x Stroke: 54.0 x 54.5mm
Compression Ratio: 8.2 ~ 10.1:1
Fuel Delivery: Hitachi Astemo Keihin PWK38S carburetor
Clutch: Wet, multiplate
Transmission/Final Drive: 6-speed/chain
Frame: Forged aluminum semi-double cradle
Front Suspension: KYB Speed-Sensitive System USD fork, fully adjustable, 11.8 in. travel
Rear Suspension: KYB shock, fully adjustable, 12.4 in. travel.
Front Brake: Hydraulic caliper, 270mm disc
Rear Brake: Hydraulic caliper, 240mm disc
Wheels, Front/Rear: 21 in./19 in.
Tires, Front/Rear: Bridgestone Battlecross X20; 80/100-21 / 100/90-19
Rake/Trail: 26.0°/4.3 in.
Wheelbase: 56.9 in.
Seat Height: 38.6 in.
Fuel Capacity: 1.8 gal.
Claimed Curb Weight: 209 lb.
Warranty: 30-day limited factory warranty
Available: October 2021
Contact: yamahamotorsports.com

The little two-stroke will pack more of a punch.

The little two-stroke will pack more of a punch. (Yamaha/)

The new YZ125 will be available starting this October at $6,899.

The new YZ125 will be available starting this October at $6,899. (Yamaha/)

The clutch lever is adjustable.

The clutch lever is adjustable. (Yamaha/)

The updated YZ will roll on Bridgestone Battlecross tires.

The updated YZ will roll on Bridgestone Battlecross tires. (Yamaha/)

The new YZ125 gets a revised transmission and fueling components too.

The new YZ125 gets a revised transmission and fueling components too. (Yamaha/)

The KYB fork features a new leaf spring in the mid-valve.

The KYB fork features a new leaf spring in the mid-valve. (Yamaha/)

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