Yamaha YZ 85
- Production years
- 2004–2027
- Brand
- Yamaha
Choose model year
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YAMAHA YZ85 (2018-2019)
Selected year: 2027
Technical specifications
- Engine capacity
- 85 cm³
- Wet weight
- 73 kg
- Seat height
- 841 mm
Overview
The Yamaha YZ 85 is a motocross bike in production from 2004 through 2027. The 2027 model has an 85.0 cm³ liquid-cooled two-stroke single with a carburetor and weighs 73.0 kg wet.
Its 841 mm seat height can make putting both feet down difficult for shorter riders, while 320 mm of ground clearance and 274 mm front and 282 mm rear wheel travel suit rough terrain. The fully adjustable KYB fork and shock let riders tailor the suspension, and electric starting avoids the need to kick-start the engine.
Specifications
Engine
Engine
- Bore x stroke
- 47.5 x 47.8 mm
- Engine capacity
- 85 cm³
- Compression ratio
- 9.6:1
- 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
Performance and transmission
- Clutch
- Wet multi-disc
- Final drive
- Chain
- Gearbox
- Manual 6-speed
- Transmission type
- Manual
Dimensions and weight
Dimensions and weight
- Dry weight
- 66.2 kg
- Fuel capacity
- 4.9 L
- Ground clearance
- 320 mm
- Overall height
- 1,135 mm
- Overall length
- 1,820 mm
- Overall width
- 760 mm
- Seat height
- 841 mm
- Wet weight
- 73 kg
- Wheelbase
- 1,255 mm
Chassis and suspension
Chassis and suspension
- Frame
- Semi-double-cradle
- Front suspension
- KYB Inverted fork, fully adjustable
- Front wheel travel
- 274 mm
- Rake
- 26.3°
- Rear suspension
- KYB Single shock, fully adjustable
- Rear wheel travel
- 282 mm
- Trail
- 89 mm
Brakes and wheels
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
Model years
2005
Engine capacity: 84.7 cm³ → 85 cm³
2006
Engine capacity: 85 cm³ → 84.7 cm³
2008
Engine capacity: 84.7 cm³ → 85 cm³
2009
Engine capacity: 85 cm³ → 84.7 cm³
2011
Engine capacity: 84.7 cm³ → 85 cm³
2012
Wet weight: 70.8 kg → 71.2 kg
2018
Seat height: 864 mm → 841 mm
2019
Wet weight: 71.2 kg → 73 kg
| Specification | ||||||
|---|---|---|---|---|---|---|
| Engine capacity | 85 cm³ | 85 cm³ | 85 cm³ | 85 cm³ | 85 cm³ | 85 cm³ |
| Power | — | — | — | — | — | — |
| Wet weight | 73 kg | 73 kg | 73 kg | 73 kg | 73 kg | 73 kg |
| Seat height | 841 mm | 841 mm | 841 mm | 841 mm | 841 mm | 841 mm |
| Fuel capacity | 4.9 L | 4.9 L | 4.9 L | 4.9 L | 4.9 L | 4.9 L |
Pros and cons
Advantages
Adjustable suspension
The fully adjustable KYB fork and shock provide scope to tune the suspension for the rider and terrain.
Electric starting
Electric start makes restarting easier than relying on a kick starter.
Low wet weight
At 73.0 kg wet, the bike's low mass helps make it easier to maneuver.
Things to consider
Tall seat
The 841 mm seat can make it harder for shorter riders to reach the ground.
Small fuel tank
The 4.90-liter tank means fuel stops may come frequently during extended riding.
Rider fit
Rider fit calculator
Calculated in your browser
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.
Fuel range calculator
Enter your expected fuel consumption to estimate the distance on a full tank, with or without a fuel reserve.
Tank 4.9 L at 6 L/100 km
Lower consumption = longer range.
Estimated range
82 km
With 10% reserve
74 km
This is a planning estimate, not a measured result. Speed, route, weather, load and riding style can change real consumption.
FAQ
What engine does the 2027 Yamaha YZ 85 have?
It has an 85.0 cm³ liquid-cooled, two-stroke single with a carburetor.
How much does the Yamaha YZ 85 weigh?
Its wet weight is 73.0 kg.
How tall is the Yamaha YZ 85 seat?
The seat height is 841 mm.
Is the Yamaha YZ 85 suspension adjustable?
Yes, both the KYB inverted front fork and the KYB rear shock are fully adjustable.