Yamaha Bws - 2007 Specifications and Reviews

The 2007 Yamaha BWs is a lightweight 49cc automatic scooter ideal for new riders and urban commuters seeking economical, easy-to-ride transportation. Known for its reliable air-cooled single-cylinder engine and practical automatic transmission, it delivers dependable performance for short-distance city travel with minimal maintenance requirements.

4 stars Average rating: 4 from 1 votes
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Engine and Transmission Specifications

ClutchAutomatic centrifugal
GearboxAutomatic
Cooling systemAir
StarterElectric & kick
IgnitionCDI
Fuel systemCarburettor. Gurtner PY-12
Bore x stroke40.0 x 39.2 mm (1.6 x 1.5 inches)
Compression7.2:1
Torque3.60
Power2.68
Stroke2
Engine typeSingle cylinder
Capacity:49.00 ccm (2.99 cubic inches)

Physical measures and capacities

Wheelbase1,172 mm (46.1 inches)
Ground clearance124 mm (4.9 inches)
Overall width675 mm (26.6 inches)
Overall length1,685 mm (66.3 inches)
Overall height1,049 mm (41.3 inches)
Seat height768 mm (30.2 inches) If adjustable, lowest setting.
Dry weight75.0 kg (165.3 pounds)
 
 

Yamaha Bws dimensions and frame

Rear brakes diameter110 mm (4.3 inches)
Rear brakesExpanding brake (drum brake)
Front brakes diameter180 mm (7.1 inches)
Front brakesSingle disc
Rear tyre dimensions150/80-10
Front tyre dimensions120/90-10
Rear suspensionHydraulic unit swing
Front suspensionHydraulic and telescopic fork

Speed and acceleration

Power/weight ratio0.0357 HP/kg

CategoryScooter
Year2007
ModelYamaha BWs

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Fuel capacity5.30 litres (1.40 gallons)

Performance Profile & Rider Fit

3.2 hp
Peak Power

Best For

Track5%
City90%
Cornering40%
Daily Riding75%
Touring10%
Passenger30%

Rider Profile

Best ForThis is an entry-level scooter suited to beginners or anyone wanting simple, low-stakes transportation with no gear shifting to worry about.
PurposeIt is built for short urban hops, errands, and commuting through congested streets rather than any kind of performance riding.
Rider FitIts light weight, low seat height, and automatic belt drive make it extremely easy to handle for riders of almost any size or strength.
CharacterIt has a friendly, unintimidating personality, prioritizing convenience and manoeuvrability over speed or excitement.
Not Ideal ForIt is not suitable for riders wanting highway speeds, long-distance touring, or any kind of off-road capability.

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

Rider Fit Visualizer

2007 Yamaha Bws Rider Ergonomics Assessment

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Feet:

At 768mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2007 Yamaha Bws, with a moderate knee angle of around 95 degrees and a slightly forward 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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