1971 Yamaha XS 650 (XS-1F) technical specifications

Technical specifications

Model: XS 650 (XS-1F)
Years: 1971
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: 185 kg / 408 lbs
Fuel Capacity: 12.5 Litres / 3.3 US gal
Oil Capacity: 3.0 Litres / 3.2 US qts
Top Speed: 185 km/h / 115 mph

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