Yamaha BWs - 2012 Specifications and Reviews

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Engine and Transmission Specifications

Transmission type,final drive:Belt
Gearbox:Automatic
Cooling system:Air
Lubrication system:Separate lubrication
Ignition:CDI
Fuel system:Carburettor. Gurtner
Bore x stroke:40.0 x 39.2 mm (1.6 x 1.5 inches)
Compression:7.2:1
Torque:3.60 Nm (0.4 kgf-m or 2.7 ft.lbs) @ 6000
Power:3.22
Engine type:Single cylinder, two-stroke
Capacity:49.20 ccm (3.00 cubic inches)

Category:Scooter
Year:2012
Model:Yamaha BWs

Brakes, suspension, Frame and wheels

Rear brakes diameter:110 mm (4.3 inches)
Rear brakes:Expanding brake (drum brake)
Front brakes diameter:180 mm (7.1 inches)
Front brakes:Single disc
Rear tyre dimensions:150/80-10
Front tyre dimensions:120/90-10
Rear suspension travel:70 mm (2.8 inches)
Rear suspension:Unit swing
Front suspension travel:70 mm (2.8 inches)
Front suspension:Telescopic fork
   

Physical measures and capacities

Fuel capacity:5.30 litres (1.40 gallons)
Wheelbase:1,172 mm (46.1 inches)
Ground clearance:124 mm (4.9 inches)
Overall width:675 mm (26.6 inches)
Overall length:1,685 mm (66.3 inches)
Overall height:1,049 mm (41.3 inches)
Seat height:768 mm (30.2 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc:82.0 kg (180.8 pounds)

Other specs

Factory warranty:6 Month (Limited Factory Warranty)
Light:Dual 30W Krypton multireflector headlights and 21/5W brakelight
Instruments:Speedometer, odometer and fuel gauge
Wheelbase:1,229 mm (48.4 inches)
Rear tyre:25/10-12
Front tyre:25/8-12
Rear wheel travel:193 mm (7.6 inches)
Rear Suspension:Independent double wishbone
Front wheel travel:147 mm (5.8 inches)
Front Suspension:Independent double wishbone
Driveline:Yamaha On-Command pushbutton; 3-way locking differential; 2WD, 4WD, locked 4WD; shaft drive
Fuel control:Single Overhead Cams (SOHC)
Bore x Stroke:83.0 x 71.5 mm (3.3 x 2.8 inches)
Compression:8.6:1
Model:Yamaha Big Bear 400 4x4 IRS
Color options:Black, white, red
Starter:Electric & kick

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