What category is the 2004 Yamaha YZ 85?

The 2004 Yamaha YZ 85 has a Category of Cross / motocross.

What is the engine size of the 2004 Yamaha YZ 85?

The 2004 Yamaha YZ 85 has a Capacity: of 84.70 ccm (5.17 cubic inches).

What type of engine does the 2004 Yamaha YZ 85 have?

The 2004 Yamaha YZ 85 has a Engine type of Single cylinder.

Is the 2004 Yamaha YZ 85 air cooled or liquid cooled?

The 2004 Yamaha YZ 85 has a Cooling system of Liquid.

How much does the 2004 Yamaha YZ 85 weigh?

The 2004 Yamaha YZ 85 has a Dry weight of 66.0 kg (145.5 pounds).

What is the seat height of the 2004 Yamaha YZ 85?

The 2004 Yamaha YZ 85 has a Seat height of 864 mm (34.0 inches) If adjustable, lowest setting..

Yamaha YZ 85 - 2004 Specifications and Reviews

Name: 2004 Yamaha YZ 85
Brand: Yamaha

The 2004 Yamaha YZ 85 is a lightweight motocross bike designed for young and intermediate riders stepping up from smaller machines. Powered by a 84.7cc liquid-cooled single-cylinder engine with five valves per cylinder, it delivers responsive performance ideal for learning advanced riding techniques on the track. Known for its manageable seat height and compact dimensions, the YZ 85 offers the perfect balance of power and control for developing riders.

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2004

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General information
Category	Cross / motocross
Year	2004
Model	Yamaha YZ 85

Engine and Transmission Specifications
Cooling system	Liquid
Fuel control	DOHC
Valves per cylinder	5
Bore x stroke	47.5 x 47.8 mm (1.9 x 1.9 inches)
Compression	8.2:1
Stroke	2
Engine type	Single cylinder
Capacity:	84.70 ccm (5.17 cubic inches)

Physical measures and capacities
Wheelbase	1,255 mm (49.4 inches)
Ground clearance	351 mm (13.8 inches)
Overall width	758 mm (29.8 inches)
Overall length	1,818 mm (71.6 inches)
Overall height	1,161 mm (45.7 inches)
Seat height	864 mm (34.0 inches) If adjustable, lowest setting.
Dry weight	66.0 kg (145.5 pounds)
Yamaha YZ 85 dimensions and frame
Rear brakes diameter	146 mm (5.7 inches)
Rear brakes	Single disc
Front brakes diameter	220 mm (8.7 inches)
Front brakes	Single disc
Rear tyre dimensions	90/100-14
Front tyre dimensions	70/100-17
Rear suspension travel	282 mm (11.1 inches)
Rear suspension	Swinging arm (monocross)
Front suspension travel	275 mm (10.8 inches)
Front suspension	Telescopic fork
Speed and acceleration
Color options	Blue
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay

Performance Profile & Rider Fit

Best For

Track85%

City5%

Cornering80%

Daily Riding5%

Touring5%

Passenger0%

Rider Profile

Best For	This is a small-wheeled competition motocrosser built specifically for younger or smaller, developing riders, not adults or beginners to motorcycling in general.
Purpose	Designed purely for amateur motocross racing and off-road training on tracks scaled to junior riders.
Rider Fit	Its tiny 66 kg dry weight and low-for-motocross seat height suit lighter, smaller riders such as pre-teens and young teenagers rather than full-sized adults.
Character	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.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2004 Yamaha YZ 85 Rider Ergonomics Assessment

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Inseam (optional)

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Feet:

At 864mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with tip-toe one foot on the 2004 Yamaha YZ 85, with a cramped knee angle of around 75 degrees and an upright riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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