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Yamaha BWs 12inch - 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 12inch
 
 

Brakes, suspension, Frame and wheels

WheelsAlloy 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 dimensions130/70-12
Front tyre dimensions120/70-12
Rear suspension travel70 mm (2.8 inches)
Rear suspensionUnit swing
Front suspension travel70 mm (2.8 inches)
Front suspensionTelescopic fork
 
 

Physical measures and capacities

Fuel capacity5.30 litres (1.40 gallons)
Wheelbase1,172 mm (46.1 inches)
Ground clearance124 mm (4.9 inches)
Overall width690 mm (27.2 inches)
Overall length1,685 mm (66.3 inches)
Overall height1,052 mm (41.4 inches)
Seat height768 mm (30.2 inches) If adjustable, lowest setting.
Power/weight ratio0.0388 HP/kg
Dry weight83.0 kg (183.0 pounds)

Other specs

Factory warranty6 Month (Limited Factory Warranty)
LightDual 30W Krypton multireflector headlights and 21/5W brakelight
InstrumentsSpeedometer, odometer and fuel gauge
Wheelbase1,229 mm (48.4 inches)
Weight incl. oil, gas, etc284.9 kg (628.0 pounds)
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
SeatDual
StarterElectric & kick

Rider Reviews

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