| TECHNICAL SPECIFICATION |
|---|
| Model ID |
|---|
| Manufacturer (Make) | Yamaha |
| Model Name | DS4 Drag Star Four 400 |
| Year | 2011 |
| Category(class) | Cruiser / Chopper / Custom |
| Engine |
|---|
| Engine Capacity (Displacement) | 399 ccm (24.35 cubic inches) |
| Engine Type | V2, four-stroke |
| Bore x Stroke | Ø68.0 mm x 55.0 mm (Ø2.68 inches x 2.17 inches) |
| Bore/Stroke Ratio | 1.24 |
| Compression Ratio | 9.7:1 |
| Timing System | SOHC |
| Fuel System(Carburetion) | Carburettor. BDS28 |
| Ignition | TCI |
| Starter System | Electric |
| Lubrication System | Wet sump |
| Cooling System | Air |
| Powertrain |
|---|
| Clutch | Wet multiple plate coil springs |
| Gearbox | 5 speed |
| Transmission (Final Drive) | Shaft drive (cardan) |
| Chassis/Suspension/Brakes |
|---|
| Front Brakes | Single disc |
| Rear Brakes | Expanding brake (drum brake) |
| Front Tire | 100/90-19 |
| Rear Tire | 170/80-15 |
| Dimensions |
|---|
| Overall Length | 2340 mm (92.13 inches) |
| Overall Width | 840 mm (33.07 inches) |
| Overall Height | 1065 mm (41.93 inches) |
| Seat Height | 660 mm (25.98 inches) |
| Fork Angle (Rake) | 35.0° degrees |
| Trail | 153 mm (6.02 inches) |
| Wheelbase | 1610 mm (63.39 inches) |
| Dry Weight | 209.0 kg (461 lb) |
| Curb Weight | 225.0 kg (496 lb) |
| Fuel Capacity | 15.00 litres (3.96 gallons) |
| Performance |
|---|
| Max Power | 32.18 HP (23.5 kW) at 7500 RPM |
| Max Torque | 32.00 Nm (23.53 ft*lbs) at 6000 RPM |
| Power/Weight Ratio | 0.14 Hp/Kg |
| Top Speed | - |
| Acceleration (dart, speedup) time | |
| 0-100 km/h | 11.1 seconds |
| 0-60 mph | 10.5 seconds |
| 1/4 mile | - |
| 60 to 140 km/h, highest gear | - |
