The Yamaha XS 650/TX 650 was a 1973 motorcycle model with a four-stroke, parallel twin-cylinder, SOHC, and 2 valves per cylinder engine. It had a displacement of 653 cc/39.8 cubic inches, a compression ratio of 8.4:1, and was air-cooled with a wet sump. The induction system was 2 Mikuni BS38 carburetors, and the ignition was battery-powered with induction coils. The maximum power output was 39.5 kW/53 hp at 7200 rpm while the max torque was 54 Nm/5.5 kgf-m/39.8 lb-ft at 6800 rpm. The motorcycle had a 5-speed transmission and chain final drive. It had telescopic forks for the front suspension and dual shock absorbers for the rear. The front wheel was equipped with a single disc brake while the rear was a drum. The dimensions of the motorcycle were 2175 mm/85.6″ in length, 905 mm/35.0″ in width, and 1135 mm/44.7″ in height with a wheelbase of 1410 mm/55.5″ and ground clearance of 150 mm/5.5″. The dry weight was 191 kg/420 lbs and fuel capacity was 12.5 liters/3.3 US gallons with an average consumption of 5.0 L/100 km/20 km/l/47 US mpg. The oil capacity was 3.0 liters/3.2 US quarts, and the top speed was 185 km/h/115 mph.
Technical specifications:
Make Model: Yamaha XS 650 / TX 650
| Year | 1973 |
|---|---|
| Engine | Four stroke, parallel twin cylinder, SOHC, 2 valves per cylinder. |
| Capacity | 653 cc / 39.8 cu in |
| Bore x Stroke | 75 x 74 mm |
| Compression Ratio | 8.4:1 |
| Cooling System | Air cooled |
| Lubrication | Wet sump |
| Induction | 2 x Mikuni BS38 carburetors |
| Ignition | Battery, induction coil |
| Starting | Kick |
| Max Power | 39.5 kW / 53 hp @ 7200 rpm |
| Max Torque | 54 Nm / 5.5 kgf-m / 39.8 lb-ft @ 6800 rpm |
| Transmission | 5 Speed |
| Final Drive | Chain |
| Front Suspension | Telescopic forks |
| Rear Suspension | Dual shock absorbers |
| Front Brakes | Single disc |
| Rear Brakes | Drum |
| Front Tyre | 3.50-19 |
| Rear Tyre | 4.00-18 |
| Dimensions | Length: 2175 mm / 85.6″Width: 905 mm / 35.0″Height: 1135 mm / 44.7″ |
| Wheelbase | 1410 mm / 55.5″ |
| Ground Clearance | 150 mm / 5.5″ |
| Dry Weight | 191 kg / 420 lbs |
| Fuel Capacity | 12.5 Litres / 3.3 US gal |
| Average Consumption | 5.0 L/100 km / 20 km/l / 47 US mpg |
| Oil Capacity | 3.0 Litres / 3.2 US qts |
| Top Speed | 185 km/h / 115 mph |
