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Click the following link for a 15-photo gallery of the 2010 Yamaha YZ85, 2010 Yamaha YZ125, and the 2010 Yamaha YZ250.
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For those of you whose heart goes pitter-patter at the sound of a ring-ding-ding, and whose nose is as skilled as a sommelier when it comes to IDing which brand of oil is being run, your choices of bikes have gotten fairly slim. Yamaha still has a trio of bikes available for the pre-mix set, and while you might not find the level of innovation that you get with a 2010 YZ450F, they're all still awfully sweet examples of the latest in two-stroke technology...even if a bit frozen in time.

2010 Yamaha YZ85

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Key Features:

  • Liquid-cooled, 84.7cc crankcase reed-valve-inducted six-speed is light, compact and designed to deliver hard-hitting, moto-winning power throughout the rpm range.
  • Ultra-rigid, single-backbone, semi-double-cradle frame is lightweight and strong for sharp handling.
  • Fully adjustable suspension allows a broad adjustment range to suit everybody from rank novice to mini expert.

Engine:

  • 84.7cc liquid-cooled, crankcase reed-valve-inducted, two-stroke engine inhales through a 28mm Keihin® flat-slide carburetor; seamless throttle response across the powerband is the result.
  • Digital CDI ignition system puts out a more precise spark and monitors engine speed to ensure optimal timing for quicker, stronger response during hard acceleration.
  • Smooth-shifting, six-speed close-ratio transmission with heavy-duty, multiplate clutch delivers maximum hookup for outstanding acceleration and corner-exiting power.
  • Involute spline set-up in clutch means smoother shifting under power with great durability at competition-level usage.
  • Two-piece clutch cover provides easy access during maintenance.
  • Lightweight radiator has large cores and louvers, and the water pump features a cast aluminum (vs. resin) impeller for maximum cooling efficiency.
  • Lightweight exhaust system design helps create a broader powerband with stronger low-end punch.
  • Airbox design ensures greater air cleaning performance and easier maintenance.

Chassis/Suspension:

  • Rear subframe is removable to allow easy maintenance.
  • Lightweight 36mm KYB® inverted cartridge fork features 10.8 inches of travel with compression and rebound damping adjustability, and low-friction outer tubes and internals.
  • Rear suspension features fully adjustable Kayaba link-type shock with 11.1 inches of travel and race-tested compression damping valving.
  • 220mm front disc and 190mm rear disc brakes with stainless steel rotors deliver strong, precise stopping power.
  • Lightweight 17-inch front and 14-inch rear rims are durable and reduce unsprung weight for optimal suspension performance.
  • Dunlop® knobbies provide great traction on a variety of tracks and terrain.

Additional Features:

  • Wide handlebar and flat fuel tank, radiator shrouds, side panels and rear fender provide rider with leverage and freedom of movement and weight transfer.
  • Wide footpegs provide superb comfort, grip and ground clearance.
  • Separate clutch cover with transmission oil filler opening makes for easy maintenance.
  • Fuel tank cap is wider-diameter for easier usage, and large tank opening ensures fast, hassle-free refueling.
  • Repackable exhaust silencer.
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Specifications

MSRP*: $3,690 (Team Yamaha Blue/White) Available from February 2010
EngineType: 84.7cc liquid-cooled 2-stroke; reed-valve inducted
Bore x Stroke: 47.5 x 47.8mm
Compression Ratio: 8.2:1
Fuel Delivery: Keihin® PWK 28
Ignition: CDI
Transmission: Constant-mesh 6-speed; multiplate wet clutch
Final Drive: Chain Drive

Chassis

Suspension/Front: Inverted fork; fully adjustable, 10.8-in travel
Suspension/Rear: Single shock; fully adjustable, 11.1-in travel
Brakes/Front: Hydraulic single disc brake, 220mm
Brakes/Rear: Hydraulic single disc brake, 190mm
Tires/Front: 70/100-17-40M
Tires/Rear: 90/100-14-49M

Dimensions

Length: 71.7 in
Width: 30.9 in
Height: 45.7 in
Seat Height: 34.0 in
Wheelbase: 49.5 in
Ground Clearance: 13.8 in
Fuel Capacity: 1.3 gal
Wet Weight: 156 lb

Other

Warranty: 30 Day (Limited Factory Warranty)

2010 Yamaha YZ125

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Key Features:

  • A light aluminum frame housing an amazingly light and compact engine results in an awesome power-to-weight ratio.
  • The YZ125 is ready to race out of the crate, complete with a ProTaper® aluminum handlebar, titanium footpegs and gripper seat.
  • A pure motocross machine, the light and nimble YZ125 is the perfect choice for riders stepping up from the 85cc class.

Engine:

  • Reed-valve spacer improves acceleration across the entire powerband.
  • Amazingly compact 124cc reed-valve-inducted two-stroke helps produce an awesome power-to-weight ratio.
  • Patented YPVS® power-valve system combines crisp, hard-hitting bottom-end acceleration with strong midrange and eye-opening top-end.
  • 38mm Mikuni® TMX carburetor gives excellent throttle response and serious horsepower.
  • Six-speed, close-ratio transmission optimizes gear ratios for maximum performance.
  • Digital CDI ignition system delivers precise spark and monitors engine speed to ensure optimal timing for faster, stronger response during hard acceleration.
  • Large-capacity radiator features a 10-row core with four louvers to deliver maximum cooling efficiency at all performance levels.
  • Primary kickstarting ensures easy restarts in any gear.
  • Trick, works-style clutch lever features race-spec barrel adjuster for on-the-fly adjustability.

Chassis/Suspension:

  • YZ250F-style front-brake caliper and wave-style front and rear discs minimize unsprung weight and provide excellent stopping power.
  • A carefully engineered, advanced aluminum frame and swingarm give the YZ125 the best handling in its class.
  • Speed-Sensitive System 48mm KYB® fork; damping force is controlled by piston speed which provides a smoother, more precise ride.
  • Removable aluminum rear subframe is constructed of square-section tubing for reduced weight.
  • Rear, fully adjustable KYB® shock features a super-light titanium shock spring and reduced-friction Kashima coating of internals. 12.4 inches of travel, separate adjusters for high- and low-speed compression damping, and a full lock oil rebound system for increased comfort all add up to fantastic rear wheel control and a sweet ride.
  • Tapered rear wheel spacers ease sliding the rear wheel into place for quicker tire changes.
  • Premium Dunlop® knobbies offer race-spec traction and wear.

Additional Features:

  • Special-design “gripper” type seat and fuel tank, forward-canted steering crown and low ProTaper® handlebar all help create greater freedom of movement and more comfortable ergonomics for riders.
  • Wide, cleated, folding titanium footpegs are lightweight and provide excellent comfort, grip and ground clearance.
  • Use of light box-head bolts throughout the chassis eases maintenance while reducing weight for increased performance.
  • Premium drive chain has gold-colored plates for outstanding looks.
  • Wide-diameter fuel tank cap for easier refueling.
  • Repackable exhaust silencer.
  • Durable, comfortable handlebar grips.
Photo

Specifications
MSRP*: $6,090 (Team Yamaha Blue/White) Available from February 2010
Engine Type: 124cc, liquid-cooled, 2-stroke, reed-valve inducted
Bore x Stroke: 54.0 x 54.5mm
Compression Ratio: 8.6~10.7:1
Fuel Delivery: Mikuni® TMX 38
Ignition: CDI
Transmission: Constant-mesh 6-speed; multiplate wet clutch
Final Drive: Chain Drive

Chassis
Suspension/Front: Speed-sensitive system inverted fork; fully adjustable, 11.8-in travel
Suspension/Rear: Fully adjustable single shock; 12.4-in travel
Brakes/Front: Hydraulic single disc brake, 250mm
Brakes/Rear: Hydraulic single disc brake, 245mm
Tires/Front: 80/100-21-51M
Tires/Rear: 100/90-19-57M

Dimensions
Length: 84.1 in
Width: 32.6 in
Height: 51.8 in
Seat Height: 39.3 in
Wheelbase: 56.8 in
Ground Clearance: 15.2 in
Fuel Capacity: 2.1 gal
Wet Weight: 208 lb

Other
Warranty: 30 Day (Limited Factory Warranty)

2010 Yamaha YZ250

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Key Features:

  • Our legendary two-stroke Supercross winner is more potent than ever.
  • A light aluminum frame housing a patented YPVS® Power valve-equipped ripper of an engine results in an awesome power-to-weight ratio.
  • The YZ250 is ready to race out of the crate, complete with a ProTaper® aluminum handlebar, titanium footpegs, gripper seat and Excel rims.

Engine:

  • 249cc liquid-cooled reed-valve-inducted two-stroke engine is lightweight, compact and features an incredibly wide, hard-hitting powerband.
  • Patented YPVS® power-valve system combines crisp, hard-hitting, bottom-end acceleration with strong midrange and eye-opening top-end.
  • Special-design carbon fiber reed-valve petals improve throttle response and engine performance across the entire rpm range.
  • Smooth-shifting, five-speed, close-ratio transmission with heavy-duty, multiplate clutch.
  • Primary kickstarter ensures smooth, easy starting action and reduced weight.
  • Large-capacity radiator features a ten-row core with four louvers for maximum cooling efficiency.
  • 38mm Keihin® PWK carburetor with power jet and throttle position sensor (TPS) ensures precise fuel/air mixing and extra-crisp throttle response throughout the powerband.
  • Digital CDI ignition system delivers precise spark for faster, stronger response anywhere in the powerband.
  • Trick, works-style clutch lever features race-spec barrel adjuster for on-the-fly adjustability.

Chassis/Suspension:

  • YZ250F-style front-brake caliper and wave-style front and rear discs minimize unsprung weight and provide excellent stopping power.
  • The KYB® 48mm forks feature the Speed-Sensitive System that uses piston speed to control damping force for super-precise handling and a smooth ride.
  • A carefully engineered, advanced aluminum frame and swingarm give the YZ250 the best handling in the 250 class.
  • Removable aluminum rear subframe is constructed of square-section tubing for reduced weight.
  • Rear, fully adjustable KYB® shock features a super-light titanium shock spring and reduced-friction Kashima coating of internals. 12.4 inches of travel, separate adjusters for high- and low-speed compression damping, and a full lock oil rebound system for increased comfort all add up to fantastic rear wheel control and a sweet ride.
  • Lightweight 21-inch front and 19-inch rear Excel rims provide exceptional durability and help reduce unsprung weight for optimal suspension, performance and handling.
  • Tapered rear wheel spacers ease sliding the rear wheel into place for quicker tire changes.
  • Premium Dunlop® knobbies offer race-spec traction and wear.

Additional Features:

  • Wide, cleated, folding titanium footpegs are lightweight and provide excellent comfort, grip and ground clearance.
  • Special-design “gripper” type seat and fuel tank, forward-canted steering crown and low handlebar provide excellent movement and more comfortable ergonomics for riders.
  • Wide-diameter fuel tank cap ensures easier usage, while larger tank opening means faster, hassle-free refueling.
  • A light and strong ProTaper® aluminum handlebar in adjustable mounts means comfort and control.
  • Premium drive chain has gold-colored plates for outstanding looks.
  • Use of light box-head bolts throughout the chassis eases maintenance while reducing weight and increasing performance.
  • Repackable exhaust silencer.
  • Durable, comfortable handlebar grips.
Photo

Specifications

MSRP*: $6,990 (Team Yamaha Blue/White) Available from February 2010
Engine Type: 249cc liquid-cooled 2-stroke; reed-valve inducted
Bore x Stroke: 66.4 x 72.0mm
Compression Ratio: 9.2 – 10.9:1
Fuel Delivery: Keihin® PWK38S
Ignition: CDI
Transmission: Constant-mesh 5-speed; multiplate wet clutch
Final Drive: Chain Drive

Chassis

Suspension/Front: Speed-Sensitive System inverted fork; fully adjustable, 11.8-in travel
Suspension/Rear: Fully adjustable single shock, 12.4-in travel
Brakes/Front: Hydraulic single disc brake, 250mm
Brakes/Rear: Hydraulic single disc brake, 245mm
Tires/Front: 80/100-21-51M
Tires/Rear: 110/90-19-62M

Dimensions

Length: 85.7 in
Width: 32.6 in
Height: 51.4 in
Seat Height: 39.1 in
Wheelbase: 58.3 in
Ground Clearance: 15.0 in
Fuel Capacity: 2.1 gal
Wet Weight: 229 lb

Other

Warranty: 30 Day (Limited Factory Warranty)

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