Yamaha xs 650 (1974)

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The Yamaha XS 650/TX 650A motorcycle was produced in 1974 and had a four-stroke, parallel twin-cylinder engine with a capacity of 653cc. The engine had a compression ratio of 8.4:1 and a cooling system that was air-cooled. The lubrication system was wet sump and the induction was via 2 Mikuni BS38 carburetors. This motorcycle had battery and induction coil ignition and could be started via electric and kick methods. The maximum power produced by this motorcycle was 53hp at 7200rpm, while the maximum torque it produced was 54Nm/5.5kgf-m/39.8lb-ft at 6800rpm. It had a five-speed transmission and a chain final drive. The front suspension had telescopic forks and the rear suspension had dual shock absorbers. The front brakes consisted of a single disc and the rear brakes were a drum. The wheels had front and rear tires with sizes of 3.50H-19 4PR and 4.00H-18 4PR, respectively. The dimensions of the motorcycle were as follows: length 2179mm, width 899mm, height 1161mm, wheelbase 1435mm, and ground clearance 150mm. The dry weight was 191kg and the fuel capacity was 15 liters. The average consumption of this motorcycle was 5.0 L/100 km, its oil capacity was 2.5 liters, and it had a top speed of 185km/h or 115mph.

Technical specifications:

Make Model: Yamaha XS 650 / TX 650A

Year: 1974


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: Electric and 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: 3.50H-19 4PR
Rear Tyre: 4.00H-18 4PR
Dimensions: Length: 2179 mm / 85.8″Width: 899 mm / 35.4″Height: 1161 mm / 45.7″
Wheelbase: 1435 mm / 56.5″
Ground Clearance: 150 mm / 5.5″
Dry Weight: 191 kg / 420 lbs
Fuel Capacity: 15 Litres / 4.0 US gal
Average Consumption: 5.0 L/100 km / 20 km/l / 47 US mpg
Oil Capacity: 2.5 Litres / 2.6 US qts
Top Speed: 185 km/h / 115 mph

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