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Yamaha BWs Naked - 2012 Specifications and Reviews

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Engine and Transmission Specifications

Transmission type,final driveBelt
GearboxAutomatic
Cooling systemAir
Lubrication systemSeparate lubrication
IgnitionCDI
Fuel systemCarburettor
Bore x stroke40.0 x 39.2 mm (1.6 x 1.5 inches)
Compression7.2:1
Torque3.60 Nm (0.4 kgf-m or 2.7 ft.lbs) @ 6000
Power3.22
Engine typeSingle cylinder, two-stroke
Capacity:49.20 ccm (3.00 cubic inches)

CategoryScooter
Year2012
ModelYamaha BWs Naked
 
 

Brakes, suspension, Frame and wheels

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 suspension travel70 mm (2.8 inches)
Rear suspensionUnit swing
Front suspension travel70 mm (2.8 inches)
Front suspensionTelescopic fork
Frame typeSteel

Physical measures and capacities

Fuel capacity5.30 litres (1.40 gallons)
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.
Weight incl. oil, gas, etc82.0 kg (180.8 pounds)
 
 

Other specs

Factory warranty6 Month (Limited Factory Warranty)
InstrumentsSpeedometer, odometer and fuel gauge
Wheelbase1,229 mm (48.4 inches)
Rear tyre25/10-12
Front tyre25/8-12
Rear wheel travel193 mm (7.6 inches)
Rear SuspensionIndependent double wishbone
Front wheel travel147 mm (5.8 inches)
Front SuspensionIndependent double wishbone
DrivelineYamaha On-Command pushbutton; 3-way locking differential; 2WD, 4WD, locked 4WD; shaft drive
Fuel controlSingle Overhead Cams (SOHC)
Bore x Stroke83.0 x 71.5 mm (3.3 x 2.8 inches)
Compression8.6:1
ModelYamaha Big Bear 400 4x4 IRS
Color optionsWhite/blue, aluminum/pink
SeatDual seat
LightTwin headlights
StarterElectric & kick

Rider Reviews

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