Yamaha BWs Naked Specs
The Yamaha BWs Naked model is a Scooter bike manufactured by Yamaha . In this version sold from year 2009 , the dry weight is and it is equiped with a Single cylinder, two-stroke motor. The engine produces a maximum peak output power of 3.21 HP (2.3 kW) @ 6500 RPM and a maximum torque of 3.60 Nm (0.4 kgf-m or 2.7 ft.lbs) @ 6000 RPM . With this drive-train, the Yamaha BWs Naked is capable of reaching a maximum top speed of . Regarding the chassis characteristics, responsible for road holding, handling behaviour and ride confort, the Yamaha BWs Naked have a frame with front suspension being Telescopic fork and in the rear suspension it is equiped with Unit swing . Stock tire sizes are 120/90-10 on the front, and 150/80-10 on the rear. As for stopping power, the Yamaha BWs Naked braking system includes Single disc size 180 mm (7.1 inches) at the front and Expanding brake (drum brake) size 110 mm (4.3 inches) at the rear.
Yamaha BWs Naked General Information
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| Brand |
Yamaha |
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| Model |
Yamaha BWs Naked |
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| Year |
2009 |
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| Year |
2009 |
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| Category |
Scooter |
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| Factory Warranty (Years / miles) |
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Yamaha BWs Naked Dimensions, Aerodynamics and weight
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| Frame type |
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| Seat details |
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| Wheelbase |
1,172 mm (46.1 inches) |
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| Length |
1,685 mm (66.3 inches) |
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| Width |
675 mm (26.6 inches) |
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| Height |
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| Seat Height |
768 mm (30.2 inches) If adjustable, lowest setting. |
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| Alternate Seat Height |
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| Ground Clearance |
124 mm (4.9 inches) |
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| Trail size |
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| Wheels details |
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| Front Tyres - Rims dimensions |
120/90-10 |
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| Rear Tyres - Rims dimensions |
150/80-10 |
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| Front brakes |
Single disc |
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| Rear brakes |
Expanding brake (drum brake) |
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| Front Brakes Dimensions - Disc Dimensions |
180 mm (7.1 inches) |
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| Rear Brakes Dimensions - Disc Dimensions |
110 mm (4.3 inches) |
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| Curb Weight (including fluids) |
82.0 kg (180.8 pounds) |
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| Dry Weight |
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| Front Percentage of Weight |
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| Rear Percentage of Weight |
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| Weight-Power Output Ratio : |
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| Fuel Tank Capacity |
5.30 litres (1.40 gallons) |
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| Reserve Fuel Capacity |
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| Carrying Details and Capacity |
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| Front Suspension |
Telescopic fork |
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| Front Suspension Travel |
70 mm (2.8 inches) |
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| Rear Suspension |
Unit swing |
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| Rear Suspension Travel |
70 mm (2.8 inches) |
Yamaha BWs Naked Engine and Transmission Technical Data
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| Engine type - Number of cylinders |
Single cylinder, two-stroke |
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| Engine details |
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| Fuel system |
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| Engine size - Displacement - Engine capacity |
49.20 ccm (3.00 cubic inches) |
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| Bore x Stroke |
40.0 x 39.2 mm (1.6 x 1.5 inches) |
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| Compression Ratio |
7.2:1 |
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| Number of valves per cylinder |
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| Camshaft Valvetrain Configuration |
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| Maximum power - Output - Horsepower |
3.21 HP (2.3 kW) @ 6500 RPM |
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| Maximum torque |
3.60 Nm (0.4 kgf-m or 2.7 ft.lbs) @ 6000 RPM |
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| Engine Maximum RPM |
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| Cooling system |
Air |
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| Lubrication system |
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| Engine oil capacity |
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| Exhaust system |
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| Gearbox |
Automatic |
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| Transmission type, final drive ratio |
Belt |
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| Clutch type |
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| Driveline |
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Yamaha BWs Naked Performance
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| Top Speed |
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| Acceleration 0 to 100 km/h (0 to 62 mph) |
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| Acceleration 0 to 400m (1/4 mile) |
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| Recuperation 60 to 140 km/h in highest gear |
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| Fuel Consumption - MPG - Economy - Efficiency |
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| CO2 emissions |
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| Emissions |
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Yamaha BWs Naked Electrical Systems, Ignition and Equipment
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| Ignition Type |
CDI |
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| Electrical Details |
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| Starter Type |
Electric & kick |
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| Instruments |
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| Lights |
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