.

Yamaha DT 250

.  

Make Model

Yamaha DT 250

Year

1979

Engine

Two stroke, single cylinder

Capacity

246 cc / 15.0 cu-in
Bore x Stroke 70 x 64 mm
Cooling System Air cooled
Compression Ratio 6.8:1
Lubrication Autolube

Induction

Single 28mm Mikuni VM28SS

Ignition 

External-rotor magneto; CDI; six-volt battery 
Starting Kick

Max Power

17 hp 12.6 kW @ 6000 rpm

Max Torque

20.7 Nm / 15.3 lb-ft @ 5500 rpm

Transmission 

5 Speed 
Final Drive Chain
Gear Ratio 1st 33/13, 2.538  /  2nd 34/19, 1.789  3rd  26/20, 1.300  /  4th 23/23, 1.000  /5th 20/26, 0.769
Frame Double-downtube, full-cradle, mild-steel frame; tubular-section, mild-steel swing arm

Front Suspension

Oil-damped, coil-spring fork with forward-mounted axle and
Front Wheel Travel 195 mm / 7.6 in

Rear Suspension

DeCarbon-type, nitrogen-charged mono-shock producing

Rear Wheel Travel 152 mm / 5.9 in

Front Brakes

Conical hub with drum brake

Rear Brakes

Conical hub with rod-actuated drum brake

Front Tyre

3.00-21

Rear Tyre

4.00-18
Rake 135 mm / 5.3 in
Dimensions Width 870 / 34.2 in
Wheelbase 1420 mm / 55.9 in
Seat Height 856 mm / 33.7 in
Ground Clearance 255 mm / 10.0 in
Dry Weight 122 kg / 269 lbs

Wet Weight

131 kg / 290 lbs

Fuel Capacity 

8.5 Litres / 2.2 gal
.