I
Secondary
slow
air
bleed
2
Secondary
main
air
bleed
3
Secondary
main
nozzle
4
Primary
main
nozzle
5
Primary
main
air
bleed
6
Primary
slow
air
bleed
7
Primary
slow
jet
8
Primary
main
jet
9
Idle
nozzle
10
Primary
throttle
valve
II
Auxiliary
valve
12
Seco
dary
throttle
valve
13
Secondary
main
jet
14
Counterweight
IS
Secondary
slow
jet
EF419A
Fig
EF
24
At
Full
Open
High
Speed
Engine
Fuel
Secondary
slow
system
Step
system
The
construction
of
this
system
corresponds
to
the
idling
and
slow
system
of
the
primary
system
This
system
aims
at
the
power
filling
up
of
the
gap
when
fuel
supply
is
transferred
from
the
primary
system
to
the
secondary
system
The
stepport
is
located
near
the
auxiliary
valve
in
its
fully
closed
state
ANTI
DIESELING
SYSTEM
The
carburetor
is
equipped
with
an
anti
liese1i
lg
solenoid
valye
As
the
ignition
switch
is
turned
off
the
valve
is
brought
into
operation
shutting
off
the
supply
of
fuel
to
the
slow
circuit
The
following
figure
shows
a
see
tional
view
of
this
control
An
ti
dies
eling
solenoid
valve
Ignition
switch
OFF
ON
t
L
li
FLOAT
SYSTEM
There
is
only
one
float
chamber
while
two
carburetor
systems
primary
and
secondary
are
provided
Fuel
fed
from
the
fuel
pump
flows
through
the
filter
and
needle
valve
into
the
float
chamber
A
constant
fuel
level
is
maintained
by
the
float
and
needle
valve
Because
of
the
inner
air
vent
type
float
chamber
ventilation
fuel
con
sumption
is
not
affected
by
dirt
ac
cumulated
in
the
air
cleaner
Ignition
switch
Q
1
T
Battery
niT
EC
3
Fig
EF
25
Anti
dieseling
Solenoid
Valve
The
needle
valve
includes
special
hard
steel
ball
and
wiD
not
wear
for
all
its
considerably
long
use
Besides
the
insertion
of
a
spring
will
prevent
the
flooding
at
rough
road
running
THROTTLE
OPENER
CONTROL
SYSTEM
T
O
C
S
Except
FU
model
The
function
of
the
throttle
opener
is
to
open
the
throttle
valve
of
the
carburetor
slightly
while
the
car
is
in
EF
10
deceleration
During
deceleration
the
manifold
vacuum
rises
and
the
quan
tity
of
mixture
in
the
engine
is
not
suffICient
for
normal
combustion
to
continue
4
consequently
a
great
amount
of
unburned
HC
is
emitted
Carburetors
equipped
with
the
throttle
opener
supply
the
engine
with
an
adequate
charge
of
combustible
mixture
to
maintain
proper
combus
tion
during
deceleration
resulting
in
a
dramatic
reduction
in
HC
emission
The
system
for
the
manual
trans
mission
model
consists
of
servo
dia
phragm
vlicuum
control
valve
throttle
opener
solenoid
valve
spee
l
detecting
switch
and
amplifier
On
the
auto
matic
transmission
model
an
inhibitor
and
inhibitor
relay
are
used
in
place
of
speed
detecting
switch
and
amplifier
on
the
manual
transmission
model
An
altitude
corrector
fitted
to
vacuum
control
valve
serves
to
automatically
regulate
the
operating
pressure
in
the
system
with
variation
of
atmospheric
pressure
T
o
C
S
n
operatIon
At
the
moment
when
the
manifold
vacuum
increases
as
occurs
upon
de
celeration
the
vacuum
control
valve
opens
to
transfer
the
manifold
vacuum
to
the
servo
diaphragm
chamber
and
the
throttle
valve
of
the
carburetor
opens
slightly
Under
this
condition
a
proper
amount
of
fresh
air
is
sucked
into
the
combustion
chamber
As
the
result
complete
combustion
of
fuel
is
as
sisted
by
this
additional
air
and
the
amount
of
H
C
contained
in
exhaust
gases
is
dramatically
reduced
Throttle
Clpener
sol
nold
valve
operation
Manual
transmission
models
The
throttle
opener
solenoid
valve
is
controlled
by
a
speed
detecting
switch
which
is
actuated
by
the
speed
ometer
needle
As
the
car
sp
ed
falls
below
16
km
h
10
MPH
this
switch
is
acti
vated
producing
a
signal
The
signal
is
led
to
the
amplifier
so
that
the
signal
can
be
amplified
to
a
degree
large
enough
to
actuate
the
