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.

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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