| Attribute | Value |
| General |
| Production from | 2015 year |
| Make | Yamaha |
| Model | Yamaha Grand Majesty 400 |
| Category | Scooter |
| Engine and transmission |
| Engine type | Single cylinder, four-stroke |
| Valves per cylinder | Add |
| Fuel system | Injection. EFI |
| Engine details | Add |
| Displacement | 395 cm³ |
| Power | 22.5 kw |
| Max RPM | Add |
| Fuel consumption | Add |
| Cooling system | Liquid |
| Transmission type,final drive | Belt |
| Torque | 33 Nm |
| Bore | 83 mm |
| Stroke | 73 mm |
| Gearbox | Automatic |
| Greenhouse gases | Add |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) |
| Emission details | Add |
| Driveline | Add |
| Ignition | TCI |
| Clutch | Dry, centrifugal automatic |
| Lubrication system | Wet sump |
| Compression | 10.6:1 |
| Exhaust system | Add |
| Chassis |
| Front suspension | Telescopic forks |
| Rear suspension | Unit swing |
| Front brakes | Double disc. Anti-lock braking |
| Rear brakes | Single disc |
| Diameter | 233 mm |
| Frame type | Aluminum die-cast and steel tube backbone |
| Front tyre | 120/80-14 |
| Rear tyre | 150/70-13 |
| Seat | Tandem seat |
| Wheels | Add |
| Front wheel travel | Add |
| Rear wheel travel | Add |
| Trail | 100 mm |
| Rake (fork angle) | 27 degree |
| Performance |
| Top speed | Add |
| Other |
| Starter | Electric |
| Color options | |
| Carrying capacity | Add |
| Light | Add |
| Instruments | Add |
| Electrical Voltage | 12 V |
| Dimensions |
| Wheelbase | 1,565 mm |
| Kerb weight | 221 kg |
| Dry weight | Add |
| Power/weight ratio | Add |
| Overall height | 1,380 mm |
| Overall length | 2,230 mm |
| Overall width | 780 mm |
| Seat height | 750 mm |
| Alternate seat height | Add |
| Ground clearance | 120 mm |
| Front percentage of weight | Add |
| Rear percentage of weight | Add |
| Acceleration 0-100 km/h | Add |
| Length | Add |
| Width | Add |
| Reserve fuel capacity | Add |
| Fuel capacity | 14 l |
| Oil capacity | 1.7 l |
| Height | Add |
| Battery capacity | 8 Ah |