The Yamaha YZ85LW motorcycle specifications include a 84.7 cc (5.17 cu in) engine, a 6-speed gearbox, and a listed weight of 71 kg (156.5 lb).
Key specifications
2009, 2012, 2013, 2014, 2015, 2017, 2022, 2023Model years
85 ccDisplacement
71 kgWet weight
864 mmSeat height
5 LFuel tank
1,255 mmWheelbase
351 mmGround clearance
Model years covered
20092012201320142015201720222023
Year-specific specification changes
The 2009 model is treated as the standard specification. Only later model years with a different supplied value are shown below.
Compression ratio
20158.1:1
202220239.6:1
Displacement
2012202385 cc (5.19 cu in)
Frame
20122017Aluminium. Semi double cradle.
Front suspension
20122017Upside-down telescopic fork
2022Inverted fork; fully adjustable
2023KYB Inverted fork; fully adjustable
Front tire
2012202370/100-19
Fuel system
20122017Carburettor. Keihin PWK 28
2022Carburettor. Keihin PWK28
2023Carburettor. Hitachi Astemo® Keihin PWK28 carburetor
Rear suspension
2012Single shock
2022Single shock; fully adjustable
2023KYB Single shock; fully adjustable
Rear tire
2012202390/100-16
Wet weight
2012201773 kg (160.9 lb)
2022202375 kg (165.3 lb)
Wheelbase
201220171,286 mm (50.6 inches)
20231,285 mm (50.6 inches)
Front wheel travel
20122017274 mm (10.8 inches)
Ground clearance
20122017393 mm (15.5 inches)
20222023360 mm (14.2 inches)
Overall height
202220231,175 mm (46.3 inches)
Overall length
201220171,903 mm (74.9 inches)
202220231,895 mm (74.6 inches)
Overall width
20122017757 mm (29.8 inches)
20222023760 mm (29.9 inches)
Rear wheel travel
20122013287 mm (11.3 inches)
20222023287 mm (11.3 inches)
Seat height
20122017904 mm (35.6 inches)
20222023884 mm (34.8 inches)
Trail
2022202310 mm (0.4 inches)
Mechanical overview
Engine layout snapshot
Single cylinder, two-stroke • 85 cc • Liquid cooled
Chassis snapshot
Wheelbase 1,255 mmSeat 864 mmClearance 351 mm
6-speed • Chain (final drive) • 70/100-17 front / 90/100-14 rear
Additional useful specifications
| Front tire size | 70/100-17 |
|---|---|
| Rear tire size | 90/100-14 |
| Front tire width | 70 mm |
| Front tire aspect ratio | 100% |
| Front rim diameter | 17 in |
| Rear tire width | 90 mm |
| Rear tire aspect ratio | 100% |
| Rear rim diameter | 14 in |
| Engine oil capacity | 0.50 L (0.53 US qt) |
| Bore/stroke ratio | 0.99:1 (Square) |
Engine specifications
| Engine type | Single cylinder, two-stroke |
|---|---|
| Displacement | 84.7 cc (5.17 cu in) |
| Bore × stroke | 47.5 x 47.8 mm (1.9 x 1.9 inches) |
| Compression ratio | 8.2:1 |
| Cooling system | Liquid |
| Fuel system | Carburettor. Keihin PWK28/1 |
| Ignition | CDI |
| Starter | Kick |
| Lubrication | Premix |
| Oil capacity | 0.50 L (0.53 US qt) |
Transmission and drivetrain
| Gearbox | 6-speed |
|---|---|
| Final drive | Chain (final drive) |
| Clutch | Wet, multiple-disc coil spring |
Chassis and suspension
| Frame | Semi-double cradle |
|---|---|
| Front suspension | Telescopic forks |
| Rear suspension | Swingarm (link suspension) |
| Front wheel travel | 275 mm (10.8 inches) |
| Rear wheel travel | 282 mm (11.1 inches) |
| Trail | 106 mm (4.2 inches) |
Brakes, wheels and tires
| Front brakes | Single disc |
|---|---|
| Rear brakes | Single disc |
| Front tire | 70/100-17 |
| Rear tire | 90/100-14 |
Dimensions and weight
| Wet weight | 71 kg (156.5 lb) |
|---|---|
| Seat height | 864 mm (34.0 inches) |
| Overall length | 1,818 mm (71.6 inches) |
| Overall width | 758 mm (29.8 inches) |
| Overall height | 1,161 mm (45.7 inches) |
| Wheelbase | 1,255 mm (49.4 inches) |
| Ground clearance | 351 mm (13.8 inches) |
Fuel and emissions
| Fuel capacity | 5.00 L (1.32 US gal) |
|---|
Other specifications
| Color options | Blue |
|---|---|
| Comments | LW means ´Large Wheels´ |
Disclaimer: Specifications may vary by market, trim, production date and optional equipment, and scraped or historical data can contain errors. Comparison and percentile values are calculated from Yamaha models in this specifications database. Always double-check important specifications against the motorcycle owner’s/service manual and official Yamaha information before relying on them. Visit the official Yamaha website.