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GENERAL -
Features
CHAPTER 1. GENERAL
1-1 FEATURES
1.
Optimum Engine Performance
The
new,
exclusive,
five-port
cyli
nder
design is being used
in
this year's model to insure
optimum performance. The
five-por
t system
inn
ovated
by
the
Yamaha engineers
has
already
proven itself
in
many
fields of competition.
2.
Increased Engine Reliability and Economy
As another f irst in the
industry
Yamaha
has
introduced
its
already proven Autolube oil
injection system
in
Yamaha
snowmobi le engines.
The
Autolube
system wil
l insure
long
engine life
and also
result in a decrease in
operational
and
•
maintenance
cost
s
.
3.
Smooth and Positive Clutch System
4.
5.
Yamaha
snowmobi les have an
improved automatic centrifugal
clutch
and
power
train system.
The new
clutch
allows the
engine to ach ieve the
most usable r.p.m. under all
operati
ng cond itions. The
drive
ratio
will vary from 3.5: 1 -
1
:
1 thus
giving maximum
acceleration
and cl
imbing
ability.
Diaphragm Carburetor
The
Yamaha snowmobiles
have one diaphragm-type carburetor.
This
carburetor incorporates an
internal metering device
which
always
meters the
correct
air/fuel mixture to the engine regardless
of vibration
or
machine position.
Superior Braking
A new des ign
in
the track, sprocket,
V-belt
and
caliper
disc brake
has
greatly
improved the
braking efficiency
and
safety
of the Yamaha snowmobile.
6.
Tilt-up Engine Shroud
7.
The attractive
fiberglass
engine shroud
has
been
designed to
tilt up
and away from
the
engine.
This
functional feature
al lows for easy refueling and engine maintenance.
Superior Comfort
The
suspension
system
of the main
track rides
on
individually mounted torsion
spring bogie
wheels.
The adjustable
torsion springs
of the
rear
pivot
arm
of the track,
in
combination
with
the attractive and
durable
seat, assure
tireless
comfort even
on the
longest
trips.
•
-
1 -
•
•
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