1981 Yamaha XS 1100 Sport technical specifications

Technical specifications

Model: XS 1100 Sport
Years: 1981
Engine: Four stroke transverse four cylinder, DOHC, 2 valves per cylinder.
Capacity: 1101 cc / 67.2 cu-in
Bore x Stroke: 71.5 x 68.6 mm
Cooling System: Air cooled
Compression Ratio: 9.2:1
Induction: 4x Mikuni BS 34SS Carburettor
Lubrication: Wet sump
Ignition: TCI additional vacuum adjusted! / electric kick starter - Witch is separated from the engine, for emergency mounting only
Spark Plug: BP6ES (NGK) or N-8Y (Champion)
Battery: GM 18Z-3A / 12v, 20 AH
Generator: A.C. Generator, voltage regulator, rectifier
Starting: Electric
Max Power: 95 hp / 70.8 kW @ 8500 rpm
Max Torque: 9.2 kgf-m / 66.5 lb-ft @ 6500 rpm
Clutch: Wet, multi-disc (8 drive plates, 7 driven plates)
Transmission: 5 Speed
Primary Reduction System: HY-VO chain & gear
Primary Reduction Ratio: 25/25 x 58/35 = 1.657
Final Drive: Shaft
Gear Ratio: 1st 38/17 (2.235) 2nd 39/24 (1.625) 3rd 36/28 (1.286) 4th 32/31 (1.032) 5th 30/34 (0.882)
Front Suspension: Telescopic fork.
Front Wheel Travel: 175 mm / 6.8 in
Rear Suspension: Dual shocks Swing arm, preload adjustable
Rear Wheel Travel: 80 mm / 3.1 in
Front Brakes: 2x 298mm discs
Rear Brakes: Single 298mm disc
Front Tyre: 3.50-19
Rear Tyre: 4.50-17
Rake: 29º 30
Trail: 130 mm / 5.1 in
Seat Height: 800 mm / 31.5 in
Wet Weight: 258kg / 568.7 lbs
Fuel Capacity: 22 Litres / 5.8 gal

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