1971 Yamaha DT1E 250
Specifications and workshop reference information for the 1971 Yamaha DT1E 250, including engine, chassis, service data and setup details.
Note: Specs are compiled from factory data, manuals and owner feedback. Bikes vary — if yours is different, jump into the forum and share it.
General Specifications
| Model | DT1-E |
| Engine Type | 2-stroke, single cylinder |
| Displacement | 246 cc |
| Bore × Stroke | 70 × 64 mm |
| Compression Ratio | 6.4 : 1 |
| Max Power | 23 HP @ 7000 rpm |
| Max Torque | 17.5 ft-lb @ 6500 rpm |
Transmission
| Type | 5-speed constant mesh |
| Clutch | Wet, multi-plate |
| Primary Ratio | 3.095 |
Dimensions
| Wheelbase | 1390 mm |
| Ground Clearance | 255 mm |
| Weight | 111 kg |
Chassis
| Frame | Tubular double loop |
| Front Suspension | Telescopic fork |
| Rear Suspension | Swingarm, dual shock |
| Front Brake | Drum |
| Rear Brake | Drum |
Carburetor
| Type | Mikuni VM26SH |
| Main Jet | #160 |
Electrical
| Ignition | Flywheel magneto |
| Battery | 6V 2Ah |
Tank Capacities
| Fuel Tank | 9.5 L |
| Oil Tank | 1.6 L |
250cc Other Specs
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