2011 Yamaha YZ85 (discontinued)

2011 Yamaha YZ85  2011 Yamaha YZ85
C70_11ms_yz85_blu_s1_0627012a C70_11ms_yz85_blu_s2_a6619ded
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Product Yamaha YZ85
Model Year 2011
Engine Size 85cc
Engine Type Liquid-cooled Two-Stroke; reed-valve inducted
Engine Displacement 85cc
Bore x Stroke 47.5 x 47.8mm
Compression Ratio 8.2:1
Fuel System Keihin® PWK 28
Ignition CDI
Transmission Constant-mesh 6-speed; multiplate wet clutch
Final Drive
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
Overall Length 71.7 in
Overall Width 29.8 in
Overall Height 45.7 in
Seat Height 34.0 in
Wheelbase 49.5 in
Ground Clearance 13.8 in
Fuel Capacity 1.3 gal
Curb Weight 156 lb


• 85cc 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.


• 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.

Available Accessories:

Please refer to the Yamaha Accessories & Apparel Catalog or go to yamaha-motor.com.
* Wet weight includes the vehicle with all standard equipment and all fluids, including oil, coolant (as applicable) and a full tank of fuel. It does not include the weight of options or accessories. Wet weight is useful in making real-world comparisons with other models.

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