Yamaha XT250 (1979-80)

The Yamaha XT250 was a motorcycle model produced from 1979-80. It had a four stroke, single cylinder, air cooled engine with a capacity of 249 cc. The bike had a maximum power output of 22 hp at 8000 rpm and a maximum torque of 2 kgf-m at 6500 rpm. It had a single 28mm Mikuni carburetor and utilized CDI ignition. The transmission was a 5-speed system and the final drive was a chain. The front suspension had leading axle, coil spring forks while the rear suspension was a swing arm with a single Kayaba shock. Braking was handled by 130mm drum brakes on both the front and rear tires. The bike had a wheelbase of 1395 mm and a seat height of 840 mm, with a total weight of 114 kg. The bike had a fuel capacity of 8 litres and returned an average consumption of 70mpg. The braking distance for 60-0 and 100-0 were not provided, but the 1/4 mile time was 16.4 seconds with a top speed of 80 mph.

Technical specifications:

Make Model: Yamaha XT 250

Year: 1979 – 80
Engine: Four stroke, single cylinder, SOHC, 2 valve
Capacity: 249 cc / 15.2 cu-in
Bore x Stroke: 75 56.5 mm
Cooling System: Air cooled
Compression Ratio: 9.2:1
Lubrication: Wet sump
Induction: Single 28mm Mikuni caruretor
Ignition: CDI
Starting: Kick
Max Power: 22 hp / 16.1 kW @ 8000 rpm
Max Torque: 2 kgf-m / 14.4 lb-ft @ 6500 rpm
Transmission: 5 Speed
Final Drive: Chain
Front Suspension: Leading axle, coil spring forks
Rear Suspension: Swing arm single Kayaba shock
Front Brakes: 130mm Drum
Rear Brakes: 130mm Drum
Front Tyre: 3.00-21
Rear Tyre: 4.60-17
Wheelbase: 1395 mm / 54.9 in
Seat Height: 840 mm / 33.0 in
Ground Clearance: 255 mm / 10.0 in
Dry Weight: 114 kg / 251.3 lbs
Fuel Capacity: 8 Litres / 2.1 US gal
Consumption Average: 70 mpg
Braking 60 – 0 / 100 – 0: – / 41.1 m
Standing 1/4 Mile: 16.4 sec / 74.5 mph 120 km/h
Top Speed: 80 mph 128.7 km/h