The Yamaha XTZ 660 T n r Marathon Byrd motorcycle specifications include a 660 cc (40.27 cu in) engine, power of 46 hp (33.6 kW) @ 6,000 rpm, a 5-speed gearbox, and a listed weight of 195 kg (429.9 lb).
Key specifications
How the Yamaha XTZ 660 T n r Marathon Byrd 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 14% lower than the Yamaha database average. Around the 55th percentile across Yamaha models.
About 20% higher than the Yamaha database average. Around the 68th percentile across Yamaha models.
About 9% taller than the Yamaha database average. Around the 87th percentile across Yamaha models.
About 53% larger than the Yamaha database average. Around the 91st 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.
46 hp — more powerful than about 55% of Yamaha models with power data.
660 cc — larger displacement than about 68% of Yamaha models.
865 mm — taller than about 87% of Yamaha models.
20 L — larger than about 91% of Yamaha fuel tanks in this database.
Dimensions compared with Yamaha average
Each measurement is compared with the average value across Yamaha models where that dimension is available.
2,265
2,082
9% above average.
1,495
1,416
6% above average.
865
793
9% above average.
Mechanical overview
Additional useful specifications
| Front tire size | 90/9-21 |
|---|---|
| Rear tire size | 120/90-17 |
| Rear tire width | 120 mm |
| Rear tire aspect ratio | 90% |
| Rear rim diameter | 17 in |
| Power-to-weight ratio | 0.236 hp/kg |
| Power-to-weight | 235.9 hp/tonne |
| Specific power | 69.7 hp/L |
Model information
| Year released | 1992 |
|---|---|
| Category | Enduro / offroad |
Engine specifications
| Engine type | Single cylinder, four-stroke |
|---|---|
| Displacement | 660 cc (40.27 cu in) |
| Power | 46 hp (33.6 kW) @ 6,000 rpm |
| Torque | 55.9 Nm (5.7 kgf-m or 41.2 ft.lbs) @ 5,000 rpm |
| Valves per cylinder | 5 |
| Cooling system | Liquid |
| Fuel system | Carburettor |
| Starter | Electric |
| Lubrication | Dry sump |
Transmission and drivetrain
| Gearbox | 5-speed |
|---|---|
| Final drive | Chain (final drive) |
Chassis and suspension
| Front suspension | Telescopic fork |
|---|---|
| Rear suspension | Monocross |
Brakes, wheels and tires
| Front brakes | Single disc |
|---|---|
| Rear brakes | Single disc |
| Front tire | 90/9-21 |
| Rear tire | 120/90-17 |
Dimensions and weight
| Dry weight | 195 kg (429.9 lb) |
|---|---|
| Seat height | 865 mm (34.1 inches) |
| Overall length | 2,265 mm (89.2 inches) |
| Wheelbase | 1,495 mm (58.9 inches) |
Fuel and emissions
| Fuel capacity | 20.00 L (5.28 US gal) |
|---|
Performance
| Power/weight ratio | 0.2359 hp/kg |
|---|
Other specifications
| Color options | White |
|---|
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.