Comparison of Yamaha Why 2009 and Yamaha Zuma 50 [S]ave
| Attribute |  Yamaha Why 2009 × |  Yamaha Zuma 50 × |
|---|---|---|
| General | ||
| Production from (year) | 2009 | 2012 |
| Make | Yamaha | Yamaha |
| Model | Yamaha Why | Yamaha Zuma 50 |
| Category | Scooter | Scooter |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, two-stroke |
| Fuel system | Carburettor | Carburettor. 14mm Teikei |
| Engine details | - | Reed-valve inducted |
| Displacement (cm³) | 49.2 | 49 |
| Power (kw) | 2.3 | - |
| Fuel consumption (l/100km) | - | 1.91 |
| Cooling system | Air | Air |
| Transmission type,final drive | Belt | Belt |
| Torque (Nm) | 3.5 | - |
| Bore (mm) | 40 | 40 |
| Stroke (mm) | 39.2 | 39.2 |
| Gearbox | Automatic | Automatic |
| Greenhouse gases | - | 44.3 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Driveline | - | V-belt |
| Ignition | CDI | DC CDI |
| Lubrication system | Separate lubrication | - |
| Compression | 7.3:1 | 7.0:1 |
| Chassis | ||
| Front suspension | Telescopic fork | Telescopic fork |
| Rear suspension | Unit swing | Single shock |
| Front brakes | Single disc | Single disc |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Diameter (mm) | 110 | 155 |
| Front tyre | 70/90-16 | 120/90-10 |
| Rear tyre | 80/90-16 | 130/90-10 |
| Front wheel travel (mm) | 80 | 66 |
| Rear wheel travel (mm) | 70 | 61 |
| Other | ||
| Starter | Electric & kick | Electric |
| Color options | - |
|
| Dimensions | ||
| Wheelbase (mm) | 1,294 | 1,275 |
| Kerb weight (kg) | 78 | 93.9 |
| Overall height (mm) | 1,105 | 1,110 |
| Overall length (mm) | 1,940 | 1,890 |
| Overall width (mm) | 685 | 706 |
| Seat height (mm) | 765 | 765 |
| Ground clearance (mm) | 125 | 119 |
| Performance | ||
| Fuel capacity (l) | 7 | 5.68 |
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