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Yamaha XS 1100 Sport

|
Model |
Yamaha XS 1100 Sport |
|
Year |
1981 |
|
Engine |
Air cooled, four stroke transverse four
cylinder, DOHC, 2 valves per cylinder. |
|
Capacity |
1101 |
|
Bore x Stroke |
71.5 z 68.6 mm |
|
Compression Ratio |
9.2:1 |
|
Induction |
4x Mikuni BS 34SS Carbs |
|
Ignition /
Starting |
TCI / electric |
|
Max Power |
95 hp @ 8500 rpm |
|
Max Torque |
9.2 kg-m 66.5 lb-ft @ 6500 rpm |
|
Transmission /
Drive |
5 Speed / shaft |
|
Front Suspension |
Telescopic fork. |
|
Rear Suspension |
Swing arm |
|
Front Brakes |
2x 298mm discs |
|
Rear Brakes |
Single 298mm disc |
|
Front Tyre |
3.50-19 |
|
Rear Tyre |
4.50-17 |
|
Wet-Weight |
258 kg |
|
Fuel Capacity |
22 Litres |
|
Consumption average |
44.4 mp/g |
|
Standing
¼ Mile |
11.9 sec / 113.6 mp/h |
|
Top Speed |
128.7 mp/h |
|
Reviews |
XS11.com |

After the XS1100, the XS1100. (In some circles it is
known as 'Sport'; however you call it there is no difficulty in distinguishing
it from the early model, for it has an all-black finish and a small fairing, or
big cowling, around the headlamp.)
Brought into Europe for the 1981 season, this big
Yamaha was fundamentally unchanged from the original. The engine still put out
95bhp but handling, claimed the makers, had been improved with new
rear-suspension units with four-way damping control, and a leading-axle front
fork using air pressure up to 15psi. New too on this latest 'Excess' were what
Yamaha called italic-spoke wheels, in which the spokes are curved to promote a
'look fast when standing still' look.
After the XS1100 — the XS1100 Sport, dis finish,
headlamp cowling and air-assisted, 1981
Testers complained that the fairing caused turbulence, resulting in a disturbed
ride at over 100mph. It is difficult, of course, to make a 6001b two-wheeler
nimble as well as fast; but other makers, with late designs, got further along
this path than Yamaha with this basically mid-1970s big four.
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