Scooters

2009Yamaha Bws Naked

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The 2009 Yamaha BWs Naked is a lightweight 49cc scooter ideal for novice riders and urban commuters seeking affordable, easy-to-ride mobility. Its air-cooled single-cylinder engine delivers modest power suited for city streets and short-distance travel. The automatic transmission and dual electric/kick starting system emphasize practicality and reliability for everyday commuting.

Capacity: 49.2 ccm
Engine: Single, two-stroke
Gearbox: 5-speed
Dry weight: 76.0 kg
Seat height: 768 mm
Power: 3.2 HP (2.4 kW) @ 6500 RPM

⇄ Compare with another bike All model years

What’s new for the 2009 Yamaha Bws Naked

vs the 2008

Spec	2008	2009
Dry weight	75.0 kg (165.3 pounds)	76.0 kg (167.6 pounds)
Front suspension	Hydraulic and telescopic fork	Telescopic fork
Rear suspension	Hydraulic unit swing	Unit swing

Other years 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail5%

Cornering40%

City riding85%

Daily riding70%

Touring10%

Two-up25%

Track5%

Best for: Built purely for short-hop urban commuting and errands, not for speed, distance, or performance riding.
Built for: A simple, no-frills small-wheel scooter with a friendly, practical, and unpretentious personality suited to everyday city errands.
Not ideal for: This is not for riders wanting highway speed, long-distance touring comfort, a passenger-friendly ride, or any kind of off-road 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 768mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2009 Yamaha Bws Naked, with a moderate knee angle of around 95 degrees and a slightly forward 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 751-820 mm — Middle Ground →

Find bikes that fit your height →

Full specifications

Engine

Capacity: 49.2 ccm
Power: 3.2 HP (2.4 kW) @ 6500 RPM
Torque: 3.6 Nm (0.4 kgf-m)
Engine type: Single, two-stroke
Power/weight ratio: 0.0421 HP/kg
Bore x stroke: 40.0 x 39.2 mm
Compression: 7.2:1
Cooling system: Air
Fuel system: Carburettor
Starting: Electric & kick
Ignition: CDI

Transmission

Gearbox: 5-speed
Transmission type: Automatic
Final drive: Belt
Clutch: Automatic centrifugal

Dimensions & weight

Wheelbase: 1172 mm
Overall length: 1685 mm
Overall width: 675 mm
Overall height: 1049 mm
Seat height: 768 mm
Dry weight: 76.0 kg
Wet weight: 82.0 kg
Fuel capacity: 5.30 litres
Ground clearance: 124 mm

Chassis & suspension

Frame: Steel
Front suspension: Telescopic fork
Rear suspension: Unit swing
Front wheel travel: 70 mm
Rear wheel travel: 70 mm

Brakes & wheels

Front brakes: Single disc
Front brakes diameter: 180 mm
Rear brakes: Expanding brake (drum brake)
Rear brakes diameter: 110 mm
Front tyre: 120/90-10
Rear tyre: 150/80-10

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	2006	2009	2011	2014	2016
Capacity	49.00 ccm (2.99 cubic inches)	49.20 ccm (3.00 cubic inches)	49.20 ccm (3.00 cubic inches)	49.20 ccm (3.00 cubic inches)	49.20 ccm (3.00 cubic inches)
Dry weight	75.0 kg (165.3 pounds)	—	77.0 kg (169.8 pounds)	—	82.0 kg (180.8 pounds)
Seat height	768 mm (30.2 inches)	768 mm (30.2 inches)	768 mm (30.2 inches)	768 mm (30.2 inches)	768 mm (30.2 inches)
Fuel capacity	5.30 litres (1.40 gallons)	5.30 litres (1.40 gallons)	5.30 litres (1.40 gallons)	5.30 litres (1.40 gallons)	5.30 litres (1.40 gallons)
Color options	—	—	White, aluminum	White/blue, aluminum/pink	Black