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Moto profi >> Manufacturers list >> Yamaha >> Why 2010
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Yamaha Why 2010

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TECHNICAL SPECIFICATION
Model ID
Manufacturer (Make)Yamaha
Model NameWhy
Year2010
Category(class)Scooter
Engine
Engine Capacity (Displacement)49 ccm (2.99 cubic inches)
Engine TypeSingle cylinder, two-stroke
Bore x StrokeØ40.0 mm x 39.2 mm (Ø1.57 inches x 1.54 inches)
Bore/Stroke Ratio1.02
Compression Ratio7.3:1
IgnitionCDI
Starter SystemElectric & kick
Lubrication SystemSeparate lubrication
Cooling SystemAir
Powertrain
Transmission (Final Drive)Belt
Chassis/Suspension/Brakes
Front SuspensionTelescopic fork
Front Suspension Travel80 mm (3.15 inches)
Rear SuspensionUnit swing
Rear Suspension Travel70 mm (2.76 inches)
Front BrakesSingle disc
Front Brakes DiameterØ220 mm (Ø8.66 inches)
Rear BrakesExpanding brake (drum brake)
Rear Brakes DiameterØ110 mm (Ø4.33 inches)
Front Tire70/90-16
Rear Tire80/90-16
Dimensions
Overall Length1940 mm (76.38 inches)
Overall Width685 mm (26.97 inches)
Overall Height1105 mm (43.5 inches)
Seat Height765 mm (30.12 inches)
Wheelbase1294 mm (50.94 inches)
Ground Clearance125 mm (4.92 inches)
Curb Weight78.0 kg (172 lb)
Fuel Capacity 7.00 litres (1.85 gallons)
Performance
Max Power3.22 HP (2.4 kW) at 6500 RPM
Max Torque3.50 Nm (2.57 ft*lbs) at 6250 RPM
Power/Weight Ratio0.04 Hp/Kg
Top Speed-
Acceleration (dart, speedup) time
  • 0-100 km/h
  • -
  • 0-60 mph
  • -
  • 1/4 mile
  • -
  • 60 to 140 km/h, highest gear
  • -

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