Key Features:
- Liquid-cooled, 85cc crankcase reed-valve inducted six-speed is light, compact and designed to deliver power throughout the RPM range.
- Ultra-rigid twin-spar 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:
- 85cc liquid-cooled, crankcase reed value 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 hook-up 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.
- Clutch cover features a sub-cover for easy access during maintenance.
- Gearbox features a shift shaft for smoother shifting feel with no spring friction.
- Lightweight radiator has large cores and louvers and 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.
- Primary kickstarting allows starting in any gear.
Chassis/Suspension:
-
Rear subframe is removable to allow easy maintenance.
- Lightweight 36mm inverted Kayaba 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 11.3 inches of travel and race-tested compression damping valving.
- 220mm front disc and 190mm rear disc brakes with stainless steel rotors and competition-spec pads 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 for 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.
- Cleated rear brake pedal and folding shift lever tip provide great grip and excellent durability.
- Wide, footpegs are cleated to 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.
- Durable, comfortable handlebar grips.
- Stainless steel clutch cable ensures longer life.
| SPECIFICATIONS |
2007 YZ85 |
ENGINE |
| Engine
Type |
84.7cc, liquid-cooled, 2-stroke, reed valve |
| Bore
and Stroke |
47.5 x 47.8mm |
| Compression
Ratio |
8.2:1 |
| Carburetion |
PWK28 x 1 |
| Fuel System |
MikuniTM VM12 |
| Ignition |
CDI |
DRIVE TRAIN |
| Transmission |
Constant mesh 6-speed/wet, multiple-disc coil spring |
| Final Drive |
Chain Drive |
|
CHASSIS
/ SUSPENSION / BRAKES
|
| Front
Suspension |
Telescopic Fork, coil spring/oil damper, 10.8" travel |
| Rear
Suspension |
Swingarm (link, suspension), coil spring/gas-oil damper, 11.1" travel |
| Front
Brake |
Hydraulic single disc brake, 198mm |
| Rear
Brake |
Hydraulic single disc brake, 146mm |
| Front
Tire |
70/100-17-40M |
| Rear
Tire |
90/100-14-49M |
|
DIMENSIONS
|
| Overall Length |
71.7" |
| Overall Width |
29.8" |
| Overall Height |
45.7" |
| Seat Height |
34" |
| Ground Clearance |
13.8" |
| Wheelbase |
49.5" |
| Dry Weight |
146 lb |
| Fuel
Capacity |
1.3 gal. |
|
OTHER
|
Warranty 30 Day (Limited Factory Warranty) |
| MSRP*$3,149 (Team Yamaha Blue/White) Available from July 2006
|
|
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