DT400B
Category: Enduros
Manufacturer: Yamaha
Hits: 938
| Year | 1975 |
| Engine Class | 400 |
| VIN Prefix | 501 |
| Known VIN Range (Vehicle ID Numbers) | 000101 to 025076 |
| Tank Color(s) | Competition Yellow |
| Country of Sale | USA |
| Bore (MM) | 85 |
| Stroke (MM) | 70 |
| Displacement (CC) | 397 |
| Compression Ratio (to 1) | 6.4 |
| BHP @ RPM | 27 @ 5,000 |
| Torque (kgm) @ RPM | 3.8 @ 5,000 |
| Autolube Injection? | Yes |
| Engine Cooling | Air |
| Carburetor Model | VM32SS |
| Ignition Type | CDI (Electronic) |
| Ignition Timing MM (BTDC) | 2.9 |
| Primary Drive Gearing | 2.67 |
| Final Drive Gearing (Sprockets) | 40/14 |
| Box Gearing First | 2.53 |
| Box Gearing Second | 1.79 |
| Box Gearing Third | 1.3 |
| Box Gearing Fourth | 1.0 |
| Box Gearing Fifth | 0.77 |
| Fuel Capacity (L) | 9 |
| 2 Stroke Oil Tank Capacity (L) | 1.5 |
| Gearbox Oil Capacity | 1.0 |
| Fork Oil Capacity (CC/Fork Leg) | 175 |
| Front Tire (stock) | 3.00 x 21 |
| Rear Tire (stock) | 4.00 x 18 |
| Front Brake Type | Drum |
| Rear Brake Type | Drum |
| Rear Suspension | Twin Shock |
| Rake (degrees) | 30.5 |
| Trail (mm) | 135 |
| Overall Width (mm) | 870 |
| Ground Clearance (mm) | 220 |
| Wheelbase (mm) | 1,410 |
| Dry Weight (kg) | 124 |
| Spark Plug | NGK B8ES |
| Voltage | 6 Volt |