Yamaha YZ85/LW EU

Production years: 2013–2017
Brand: Yamaha

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YAMAHA YZ85 (2012-2013)

Selected year: 2017

Technical specifications

Engine capacity: 85 cm³
Power: 22 hp (16 kW)
Wet weight: 71.2 kg
Seat height: 841 mm

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Overview

The Yamaha YZ85/LW EU is a motocross bike from the YZ 85 family, produced from 2013 through 2017. The 2017 model has an 85.0 cm³ single-cylinder two-stroke engine producing 22 hp (16 kW), and weighs 71.2 kg wet.

Its 841 mm seat is lower than the 2014 model's 864 mm seat, which can make reaching the ground easier. The 330 mm ground clearance and 274 mm front and 282 mm rear suspension travel give it room to handle rough track terrain, while electric starting avoids the need to kick-start it. The 4.90-liter tank can mean more frequent fuel stops during extended riding.

Specifications

Engine

Bore x stroke: 47.5 x 47.8 mm
Engine capacity: 85 cm³
Compression ratio: 8.2:1
Cooling system: Liquid
Engine type: Single, two-stroke
Fuel system: Carburettor
Ignition: CDI
Lubrication system: Wet sump
Starting: Electric
Valves per cylinder: 5

Performance and transmission

Power: 22 hp (16 kW)
Power weight ratio: 0.3323 HP/kg (dry)
Clutch: Wet multi-disc
Final drive: Chain
Gearbox: Manual 6-speed
Transmission type: Manual

Dimensions and weight

Dry weight: 66.2 kg
Fuel capacity: 4.9 L
Ground clearance: 330 mm
Overall height: 1,125 mm
Overall length: 1,821 mm
Overall width: 759 mm
Seat height: 841 mm
Wet weight: 71.2 kg
Wheelbase: 1,257 mm

Chassis and suspension

Frame: Single-backbone, semi-double-cradle frame
Front suspension: Inverted fork
Front wheel travel: 274 mm
Rake: 28.0°
Rear suspension: Single shock
Rear wheel travel: 282 mm
Trail: 89 mm

Brakes and wheels

Front brakes: Single disc. Hydraulic.
Front brakes diameter: 220 mm
Front tyre: 70/100-17
Rear brakes: Single disc. Hydraulic.
Rear brakes diameter: 190 mm
Rear tyre: 90/100-14

Colours and equipment

Colours: Blue/White

Model years

2015

Seat height: 864 mm → 841 mm

Specification
Engine capacity	85 cm³	85 cm³	85 cm³	85 cm³	85 cm³
Power	—	—	22 hp (16 kW)	22 hp (16 kW)	22 hp (16 kW)
Wet weight	71.2 kg	71.2 kg	71.2 kg	71.2 kg	71.2 kg
Seat height	864 mm	864 mm	841 mm	841 mm	841 mm
Fuel capacity	4.9 L	4.9 L	4.9 L	4.9 L	4.9 L

Pros and cons

Advantages

Low wet weight
At 71.2 kg wet, it is easier to maneuver through tight track sections and move around off the bike.
Motocross-ready clearance and travel
Its 330 mm ground clearance and long-travel suspension help it clear obstacles and absorb rough terrain.
Electric starting
The electric starter makes restarting simpler than kick-starting.

Things to consider

Limited fuel capacity
The 4.90-liter tank can require more frequent fuel stops during extended riding.
Tall seat
At 841 mm, the seat can make it harder for shorter riders to put their feet down securely.

Rider fit

Rider fit calculator

Calculated in your browser

Seat height: 841 mmInseam 78.9 cm

Seat height: 841 mm

Your height

Inside leg lengthOptional

Don't know it? Leave this empty and we'll estimate it from your height.

Estimated from your height: 79 cm

How to measure

Stand barefoot with your back to a wall. Hold a book firmly between your legs, then measure from the floor to the top edge of the book.

Estimated ground reach

Balls of both feet likely down

You should reach on both sides, but probably not with your heels fully down.

Seat height

841 mm

Approx. loaded height

811 mm

Estimate assumes about 30 mm of suspension sag. Seat width, footwear, luggage and suspension settings can change real reach. Always sit on the motorcycle before buying.