The Yamaha SR 250 Special motorcycle specifications include a 240 cc (14.64 cu in) engine, a 5-speed gearbox, and a listed weight of 135 kg (297.6 lb).
Key specifications
How the Yamaha SR 250 Special 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.
About 56% lower than the Yamaha database average. Around the 31st percentile across Yamaha models.
About 28% lighter than the Yamaha database average. Around the 30th percentile across Yamaha models.
About 23% smaller than the Yamaha database average. Around the 35th percentile across Yamaha models.
Yamaha database percentile rankings
Percentiles show where this motorcycle sits across the Yamaha specifications database. They are descriptive database rankings, not performance ratings.
240 cc — larger displacement than about 31% of Yamaha models.
135 kg — heavier than about 30% of Yamaha models, or lighter than about 70%.
10 L — larger than about 35% of Yamaha fuel tanks in this database.
Mechanical overview
Additional useful specifications
| Front tire size | 3.00-19 |
|---|---|
| Rear tire size | 120/90-16 |
| Rear tire width | 120 mm |
| Rear tire aspect ratio | 90% |
| Rear rim diameter | 16 in |
| Bore/stroke ratio | 1.30:1 (Oversquare) |
Model information
| Year released | 1981 |
|---|
Engine specifications
| Engine type | Single cylinder, four-stroke |
|---|---|
| Displacement | 240 cc (14.64 cu in) |
| Bore × stroke | 73.5 x 56.5 mm (2.9 x 2.2 inches) |
| Compression ratio | 9.2:1 |
| Valves per cylinder | 2 |
| Cooling system | Air |
| Fuel control | Overhead Cams (OHC) |
Transmission and drivetrain
| Gearbox | 5-speed |
|---|---|
| Final drive | Chain (final drive) |
Brakes, wheels and tires
| Front brakes | Expanding brake |
|---|---|
| Rear brakes | Expanding brake |
| Front tire | 3.00-19 |
| Rear tire | 120/90-16 |
Dimensions and weight
| Wet weight | 135 kg (297.6 lb) |
|---|
Fuel and emissions
| Fuel capacity | 10.00 L (2.64 US gal) |
|---|
Performance
| Top speed | 120.0 km/h (74.6 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.