Yamaha XS1100 (1978)

The Yamaha XS 1100E is a motorcycle from 1978 with a four stroke transverse four cylinder engine and a capacity of 1101 cc. The engine has a compression ratio of 9.2:1 and is cooled by air. The ignition is TCI and the starting is electric. The bike can reach a maximum power of 95 hp and a maximum torque of 9.2 kgf-m. The transmission is a 5 speed with a primary reduction system of HY-VO chain and gear. The final drive is shaft and the bike has front telescopic fork suspension and dual shocks swing arm rear suspension. The wet weight is 258 kg and the fuel capacity is 22 liters. The average fuel consumption is 40.3 mpg. The bike can brake from 100-0 in 39.7 m and can travel a standing 1/4 mile in 11.7 sec at a speed of 114.2 mph. The top speed of the bike is 126 mph.

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Technical specifications:

Make Model: Yamaha XS 1100E

Year: 1978

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: 29 o 30

Trail: 130 mm / 5.1 in

Wet Weight: 258 kg / 568.7 lbs

Fuel Capacity: 22 Litres / 5.8 gal

Consumption Average: 40.3 mpg

Braking 100 – 0: 39.7 m

Standing 1/4 Mile: 11.7 sec / 114.2 mph 183.8 km/h

Top Speed: 126 mph / 202.8 km/h