2007Yamaha YZ 85

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The 2007 Yamaha YZ 85 is a lightweight motocross machine designed for young riders and beginners transitioning to competitive racing. Powered by a liquid-cooled 85cc single-cylinder two-stroke engine, it delivers impressive power delivery with manageable control. Known for its agile handling and accessible seat height, the YZ 85 remains an ideal platform for developing fundamental riding skills.

Capacity: 84.7 ccm
Engine: Single, two-stroke
Gearbox: 6-speed
Dry weight: 66.2 kg
Seat height: 864 mm
Power: Not on record
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⇄ Compare with another bike All model years

What’s new for the 2007 Yamaha YZ 85

vs the 2006

Spec	2006	2007
Dry weight	66.0 kg (145.5 pounds)	66.2 kg (145.9 pounds)
Gearbox	—	6-speed
Front suspension	Telescopic fork	Telescopic Fork, coil spring/oil damper, 10.8Â´
Rear suspension	Swinging arm (monocross)	Swingarm (link, suspension), coil spring/gas-oil damper, 11.3Â´
Wheelbase	1255 mm (49.4 inches)	1257 mm (49.5 inches)

Other years 2002 2003 2004 2005 2006 2007

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail90%

Cornering80%

City riding5%

Daily riding5%

Touring5%

Two-up0%

Track85%

Best for: Designed purely for amateur motocross racing and off-road training on tracks scaled to junior riders.
Built for: A high-strung, free-revving two-stroke that rewards aggressive clutch and throttle work with sharp, flickable handling on rough terrain.
Not ideal for: This is not suitable for adult commuting, highway travel, two-up riding, or anyone seeking comfort, storage, or long-distance capability.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

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Your height

Inseam (optional)

Units

At 864mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with tip-toe one foot on the 2007 Yamaha YZ 85, with a cramped knee angle of around 75 degrees and an upright riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 821-900 mm — Long Legs →

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Full specifications

Engine

Capacity: 84.7 ccm
Engine type: Single, two-stroke
Bore x stroke: 47.5 x 47.8 mm
Compression: 8.2:1
Cooling system: Liquid
Fuel system: Carburettor
Starting: Electric
Ignition: CDI
Valves per cylinder: 5
Lubrication system: Dry sump
Power: Not on record - add it

Transmission

Gearbox: 6-speed
Transmission type: Manual
Final drive: Chain
Clutch: Wet, multiplate

Dimensions & weight

Wheelbase: 1257 mm
Overall length: 1821 mm
Overall width: 757 mm
Overall height: 1161 mm
Seat height: 864 mm
Dry weight: 66.2 kg
Wet weight: 70.8 kg
Fuel capacity: 4.90 litres
Ground clearance: 351 mm

Chassis & suspension

Frame: Aluminium
Front suspension: Telescopic Fork, coil spring/oil damper, 10.8Â´
Rear suspension: Swingarm (link, suspension), coil spring/gas-oil damper, 11.3Â´
Front wheel travel: 275 mm
Rear wheel travel: 282 mm
Rake (fork angle): 26.0°
Trail: 89 mm

Brakes & wheels

Front brakes: Single disc
Front brakes diameter: 198 mm
Rear brakes: Single disc
Rear brakes diameter: 146 mm
Front tyre: 70/80-M17
Rear tyre: 90/90-M14

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

What changed, year to year

Differences highlighted

Specification	2002	2003	2005	2006	2007
Capacity	84.70 ccm (5.17 cubic inches)	84.70 ccm (5.17 cubic inches)	85.00 ccm (5.19 cubic inches)	84.70 ccm (5.17 cubic inches)	84.70 ccm (5.17 cubic inches)
Dry weight	66.0 kg (145.5 pounds)	66.0 kg (145.5 pounds)	—	66.0 kg (145.5 pounds)	66.2 kg (146.0 pounds)
Seat height	864 mm (34.0 inches)	864 mm (34.0 inches)	—	864 mm (34.0 inches)	864 mm (34.0 inches)
Fuel capacity	—	—	—	—	4.92 litres (1.30 gallons)
Color options	—	—	Team Yamaha Blue/White	—	—