The Yamaha XS 650 US. Custom motorcycle specifications include a 654 cc (39.91 cu in) engine, power of 48 hp (35.0 kW) @ 7,100 rpm, a 5-speed gearbox, and a listed weight of 221 kg (487.2 lb).
Key specifications
How the Yamaha XS 650 US. Custom 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 10% lower than the Yamaha database average. Around the 57th percentile across Yamaha models.
About 19% higher than the Yamaha database average. Around the 66th percentile across Yamaha models.
About 19% heavier than the Yamaha database average. Around the 72nd percentile across Yamaha models.
About 8% smaller than the Yamaha database average. Around the 45th 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.
48 hp — more powerful than about 57% of Yamaha models with power data.
654 cc — larger displacement than about 66% of Yamaha models.
221 kg — heavier than about 72% of Yamaha models, or lighter than about 28%.
12 L — larger than about 45% of Yamaha fuel tanks in this database.
Mechanical overview
Additional useful specifications
| Front tire size | 3.50-19 |
|---|---|
| Rear tire size | 130/90-16 |
| Rear tire width | 130 mm |
| Rear tire aspect ratio | 90% |
| Rear rim diameter | 16 in |
| Power-to-weight ratio | 0.217 hp/kg |
| Power-to-weight | 217.2 hp/tonne |
| Specific power | 73.4 hp/L |
| Bore/stroke ratio | 1.01:1 (Square) |
Model information
| Year released | 1980 |
|---|
Engine specifications
| Engine type | Twin, four-stroke |
|---|---|
| Displacement | 654 cc (39.91 cu in) |
| Power | 48 hp (35.0 kW) @ 7,100 rpm |
| Bore × stroke | 75.0 x 74 mm (3.0 x 2.9 inches) |
| Compression ratio | 8.4:1 |
| 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 | Single disc |
|---|---|
| Rear brakes | Expanding brake |
| Front tire | 3.50-19 |
| Rear tire | 130/90-16 |
Dimensions and weight
| Wet weight | 221 kg (487.2 lb) |
|---|
Fuel and emissions
| Fuel capacity | 12.00 L (3.17 US gal) |
|---|
Performance
| Top speed | 156.0 km/h (96.9 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.