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1978 Yamaha DT 250

Pre-1980 pioneer

1978 Yamaha DT 250
Make
Yamaha
Model
DT 250
Year
1978
Engine
250 cc
Type
Air-cooled 2-stroke single
Owner
G.W.

Notes & specs

The 1978 Yamaha DT 250 is a classic air-cooled two-stroke trail bike that was a favourite for dual-purpose riding and light enduro work. Simple, light and torquey, it still turns up regularly at club events. Specs below are approximate period claims.

Engine & Drivetrain

Engine Type
Air-cooled 2-stroke single
Bore × Stroke
70.0 × 64.0 mm
Compression Ratio
6.8:1
Power
~23 hp @ 6,000 rpm
Torque
~2.7 kg-m @ 5,500 rpm
Fuel System
Mikuni carburettor
Starting
Kick
Transmission
5-speed
Final Drive
Chain

Suspension & Brakes

Front Suspension
Telescopic forks
Rear Suspension
Dual-shock swingarm
Front Brakes
Drum
Rear Brakes
Drum

Dimensions & Capacity

Seat Height
~850 mm
Dry Weight
~118 kg
Wet Weight
~130 kg
Ground Clearance
~250 mm
Wheelbase
~1,400 mm
Fuel Capacity
~9.5 L
Overall Length
~2,150 mm

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