Yamaha XS 250 Specs (Top Speed | Horsepower | Weight)

The Yamaha XS 250 motorcycle specifications include a 249 cc (15.19 cu in) engine, a 6-speed gearbox, and a listed weight of 178 kg (392.4 lb).

Key specifications

1978-1979Model years
249 ccDisplacement
178 kgWet weight
17 LFuel tank
Model years covered
19781979

Year-specific specification changes

No material specification changes from the 1978 baseline were found in the available data.

How the Yamaha XS 250 compares

This compares the motorcycle with all Yamaha models in this specifications database. The blue marker is this model and the grey line is the Yamaha database average.

Displacement249 cc
Low 49 ccAverage 550 ccHigh 1,852 cc

About 55% lower than the Yamaha database average. Around the 37th percentile across Yamaha models.

Wet weight178 kg
Low 72.1 kgAverage 186.3 kgHigh 348.7 kg

Very close to the Yamaha database average. Around the 48th percentile across Yamaha models.

Fuel capacity17 L
Low 4 LAverage 13 LHigh 24 L

About 30% larger than the Yamaha database average. Around the 73rd percentile across Yamaha models.

This model Yamaha database average

Yamaha database percentile rankings

Percentiles show where this motorcycle sits across the Yamaha specifications database. They are descriptive database rankings, not performance ratings.

Displacement37th

249 cc — larger displacement than about 37% of Yamaha models.

Wet weight48th

178 kg — heavier than about 48% of Yamaha models, or lighter than about 52%.

Fuel capacity73rd

17 L — larger than about 73% of Yamaha fuel tanks in this database.

Mechanical overview

Engine layout snapshot

Twin, four-stroke • 249 cc • Air cooled
Chassis snapshot

6-speed • Chain (final drive) • 3.00-18 front / 3.50-18 rear

Additional useful specifications

Front tire size 3.00-18
Rear tire size 3.50-18
Bore/stroke ratio 1.05:1 (Oversquare)

Model information

Category Touring

Engine specifications

Engine type Twin, four-stroke
Displacement 249 cc (15.19 cu in)
Bore × stroke 55.0 x 52.4 mm (2.2 x 2.1 inches)
Compression ratio 9.6:1
Valves per cylinder 2
Cooling system Air
Fuel control Overhead Cams (OHC)

Transmission and drivetrain

Gearbox 6-speed
Final drive Chain (final drive)

Brakes, wheels and tires

Front brakes Single disc
Rear brakes Expanding brake
Front tire 3.00-18
Rear tire 3.50-18

Dimensions and weight

Wet weight 178 kg (392.4 lb)

Fuel and emissions

Fuel capacity 17.00 L (4.49 US gal)

Performance

Top speed 115.0 km/h (71.5 mph)

Disclaimer: Specifications may vary by market, trim, production date and optional equipment, and scraped or historical data can contain errors. Comparison and percentile values are calculated from Yamaha models in this specifications database. Always double-check important specifications against the motorcycle owner’s/service manual and official Yamaha information before relying on them. Visit the official Yamaha website.