Yamaha XS250 (1984)

The Yamaha XS250 DOHC was a 1984 model motorcycle with a four stroke, 180 degrees parallel twin, DOHC engine and a capacity of 248cc. It had a compression ratio of 10.1:1 and was air-cooled with a wet sump lubrication system. The bike featured 2x 32mm Mikuni carburetors and coil and cb ignition, and starting was by kick. The maximum power was 30 hp (22.3 kW) at 10,000 rpm and the maximum torque was 2.2 kgf-m (15.2 lb-ft) at 8,500 rpm. The clutch was a wet multiplate type and the transmission had six speeds, with final drive via chain. The frame was a duplex cradle, with telescopic forks at the front and dual shocks at the rear, which were swing arm mounted and 5-position preload adjustable. The front brake was a single 267mm disc and the rear brake was a drum of 178mm diameter. The front tyre had a size of 3.00-18 and the rear tyre was 3.50-18. The wheelbase measured 1359 mm (53.5 in) and the seat height was 810 mm (31.8 in). The dry weight was 165.5 kg (365 lbs) and the wet weight was 174 kg (392.4 lbs). The fuel tank capacity was 14 litres (3.7 US gal).

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Technical specifications:

Make Model: Yamaha XS 250 DOHC

Year: 1984 –

Engine: Four stroke, 180 degrees parallel twin, DOHC, 2 valves per cylinder

Capacity: 248 cc / 15.2 cu-in

Bore x Stroke: 56 50.6 mm

Cooling System: Air cooled

Compression Ratio: 10.1:1

Lubrication: Wet sump

Induction: 2x 32mm Mikuni carburetors

Ignition: Coil and cb

Starting: Kick

Max Power: 30 hp / 22.3 kW @ 10000 rpm

Max Torque: 2.2 kgf-m / 15.2 lb-ft @ 8500 rpm

Clutch: Wet multiplate

Transmission: 6 Speed

Final Drive: Chain

Frame: Duplex cradle

Front Suspension: Telescopic forks

Rear Suspension: Dual shocks, swing arm, 5-position preload adjustable

Front Brakes: Single 267mm disc

Rear Brakes: 178mm Drum

Front Tyre: 3.00-18

Rear Tyre: 3.50-18

Wheelbase: 1359 mm / 53.5 in

Seat Height: 810 mm / 31.8 in

Dry Weight: 165.5 kg / 365 lbs

Wet Weight: 174 kg / 392.4 lbs

Fuel Capacity: 14 Litres / 3.7 US gal