1978 Yamaha XS Eleven - 2-Page Vintage Motorcycle Ad

Description

1978 Yamaha XS Eleven - 2-Page Vintage Motorcycle Ad
Original, vintage magazine advertisement
Page Size: Approx 8" x 11" (21 cm x 28 cm) each page
Condition: Good
INTRODUCING THE XS EIEVEN.
When we set out
to design the XS
Eleven three long
years ago, we were
determined to make
it the fastest pro-
duction four-stroke
in the world. It was
an exciting prospect.
Today, the excite-
ment is gone. It’s
been replaced by sheer, unalloyed jubilation.
Because, in a standing quarter-mile test
conducted by Motorcyclist Magazine, using
a completely stock machine, the XS Eleven
broke the magic 12-second barrier with an
unbelievable 11.73 seconds.
That kind of performance could only
come from this kind of engine: our amazing
new HOlcc, double overhead cam, four cylin-
der power plant that’s been tested, refined
and honed to a state of absolute perfection.
Each cylinder is assigned its own 34mm
“Type II,” constant-velocity Mikuni carbu-
retor to insure the exact air/fuel mixture for
maximum horsepower and economy.
Yamaha’s exclusive Transistor Controlled
Ignition provides a hot, reliable spark,
using precise electronic impulses instead of
mechanical breaker points.
And our vacuum advance system—an-
other Yamaha exclusive—automatically
senses and adjusts ignition timing for clean,
efficient combustion and rocket-like acceleration.
Even if you like to travel two-up with a
full load of touring gear, the XS Eleven can
handle it effortlessly.
It’s fast, all right. But just making a fast
motorcycle wasn’t good enough for us. So we
also built in an uncanny smoothness. Our
state-of-the-art shaft drive
uses a set of spiral bevel
gears and an automotive
typeu-joint to deliver
that turbine-like quality.
r And since the engine crank-
shaft is mounted transversely,
there’s none of the torque reaction
common to other shaft-driven machines.
This penchant for smoothness plus the
Eleven’s narrow design and optimum frame
geometry result in comfort and handling
characteristics totally uncharacteristic of a
superbike. It’s as agile in wide sweeping
turns as it is in tight city traffic.
As for extras, they’re all there —without
costing extra. Triple hydraulic disc brakes.
Cast aluminum wheels.Three-way-adjust-
able front forks. Electronic fuel gauge.
Complete instrumentation. And more.
When you stop to think about it, the
XS Eleven gives you just about everything:
superbike speed, roadster nimbleness,
tourer comfort.
Three beautiful motorcycles.
For the price of one.
YAMAHA
When you know how they’re built.
Complete instrumentation.
Electronic fuel gauge; tachometer;
MPH/KPH speedometer;
odometer; resettable trip meter;
warning lights for oil, neutral
and headlight burnout.
Adjustable front forks give you
three spring preload positions.
All you need is a screwdriver.
Dual front disc brakes for positive
stopping power. The calipers are
mounted behind the forks for
better handling.
Transistor Controlled Ignition
has no mechanical parts to wear
out or replace.
A two-stage starting circuit takes
the uncertainty out of cold starts
The massive 4.50x 17 rear
tire is mounted on a cast
aluminum wheel No spokes.
No spoke problems. A rear
disc brake is standard
equipment, too.
Tapered roller bearings on th e
swing ami pivot improve han-
dling and durability.
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