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Polaris Genesis 2000

Polaris Genesis 2000
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GENERAL
INFORMATION
Glossary
Of
Terms
ABDC:
After
bottom
dead
center.
ATDC:
After
top
dead
center.
ACV:
Alternating
current
voltage.
Alternator:
Electrical
generator producing
voltage
alternating
current.
BBDC:
Before
bottom
dead
center.
BDC:
Bottom
dead
center.
BTDC:
Before
top
dead
center.
Bow:
The
front
of
a
watercraft
C:
Celsius
CC:
Cubic
centimeters.
CDI:
Capacitor
discharge
ignition.
Ignition
system
which
stores
voltage
generated
by
the
stator
plate
exciter
coil
in
a
capacitor
or
condenser
(in
CDI
box).
At
the
proper
moment
a
voltage
generated
by
the
stator
plate
pulser
coil
closes
an
electronic
switch
(thyristor)
in
the
CDI
box
and
allows
the
voltage
in
the
capacitor
to
discharge
into
the
primary
windings
of
the
ignition
coil.
Cl:
Cubic
inches.
Condenser/Capacitor:
A
storage
reservoir
for
electricity,
used
in
both
E.T.
and
CDI
systems.
Crankshaft
Run-Out:
Run-out
or
"bend"
of
crankshaft
measured
with
a
dial
indicator
while
crankshaft
is
supported
between
centers
on
V
blocks
or
resting
in
lower
half
of
crankcase.
Measure
at
various
points
especially
at
the
PTO
end.
DCV:
Direct
current
voltage.
Detonation:
The
spontaneous
ignition
of
the
unburned
fuel/air
mixture
after
normal
ignition
spark
occurs.
Piston
looks
"hammered"
through,
rough
appearance
around
hole.
Possible
causes:
1)
Compression
ratio
too
high
for
the
fuel
octane;
2)
low
octane
fuel;
3)
over-advanced
ignition
timing.
Dial
Bore
Gauge:
A
cylinder
measuring
instrument
which
uses
a
dial
indicator.
Good
for
showing
taper
and
out-of-round
in
the
cylinder
bore.
End
Seals:
Rubber
seals
at
each end
of
the
crankshaft.
F:
Fahrenheit
ft.:
Foot/feet.
Foot
Pound:
Ft.
Ib.
A
force
of
one
pound
at
the
end
of
a
lever
one
foot
in
length,
applied
in
a
rotational
direction.
g:
Gram.
Unit
of
weight
in
the
metric
system.
There
are
28
grams
in
one
ounce.
gal.:
Gallon.
Head Volume
(Uninstalled):
Cylinder
head
capacity
in
cc,
head
removed
from
engine
with
spark
plug
installed.
High
Tension
Lead:
The
heavy
insulated
wire
which
carries
the
high
secondary
voltage
from
the
coil
to
the
spark
plug.
Holed
Piston:
Piston
in
which
a
hole
has
formed
on
the
dome.
Possible
causes:
1)
detonation;
2)
pre-ignition.
HP:
Horsepower.
ID:
Inside
diameter.
Ignition
Coil:
A
type
of
transformer
which
increases
voltage
in
the
primary
windings
(approx.
200V)
to
a
higher
voltage
in
the
secondary
windings
(approx.
14KV
-
32KV)
through
induction.
Secondary
voltage
must
be
high
enough
to
ionize
the
air
gap
at
the
spark
plug.
Ignition
Generating
Coil:
Exciter
coil,
primary
charge
coil.
Stator
plate
coil
which
generates
primary
ignition
voltage.
in.:
Inch/inches.
kg/cm
:
Kilograms
per
square
centimeter.
Kg-m:
Kilogram
meters.
Km:
Kilometer.
Kilogram
meter:
A
force
of
one
kilogram
at
the
end
of
a
lever
one
meter
in
length,
applied
in
a
rotational
direction.
300
1.10
Polaris
Sales
Inc.

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