ignition DATSUN 210 1979 Service Manual
[x] Cancel search | Manufacturer: DATSUN, Model Year: 1979, Model line: 210, Model: DATSUN 210 1979Pages: 548, PDF Size: 28.66 MB
Page 14 of 548
GI417
Fig
GI
15
Front
Towing
Hook
REAR
SIDE
Rear
towing
hooks
are
provided
on
bot
rear
sides
GI418
Fig
GI
16
Rear
Towing
Hooks
Special
Tools
play
very
important
role
in
the
maintenance
of
cars
These
are
essential
to
the
safe
accurate
and
speedy
servicing
The
working
times
listed
in
the
column
under
FLAT
RATE
TIME
in
FLAT
RATE
SCHEDULE
are
com
puted
based
on
the
use
of
Special
Tools
General
Information
CAUTION
a
Before
towing
make
sure
that
the
transmission
axles
steering
system
and
p
r
train
are
in
good
order
If
any
unit
is
damaged
a
dolly
must
be
used
If
the
transmission
is
inoperative
tow
the
car
with
the
rear
wheels
off
the
ground
or
with
the
propeller
shaft
removed
c
When
the
car
is
towed
with
its
front
wheels
on
the
ground
secure
the
steering
wheel
in
a
straight
ahead
position
with
the
ignition
key
turnedin
OFF
position
d
When
towing
an
automatic
trans
mission
model
on
its
rear
wheels
do
not
exceed
30
km
h
20
MPH
and
a
distance
of30
km
20
miles
e
Release
the
parking
brake
and
set
the
gearshift
lever
in
Neutral
position
before
starting
to
tow
the
car
TIE
DOWN
FRONT
51
DE
Use
front
towing
hooks
for
tie
down
at
the
front
side
SPECIAL
TOOLS
The
identification
code
of
ffi
linte
nance
tools
is
made
up
of
2
alphabeti
calletters
and
8
digital
figures
The
heading
two
letters
roughly
classify
tools
c
equipment
as
STOOOOOOOO
KVOOOOOOOO
Special
Tool
Special
Tool
GI
l0
REAR
SIDE
Use
rear
towing
hooks
for
tie
down
at
the
rear
side
EMOOOOOOOO
GGOOOOOOOO
lMOOOOOOOO
HTOOOOOOOO
Engine
Overhauling
Machine
General
Gauge
Garage
Tool
Hand
Tool
Refer
to
Service
Bulletin
DATSUN
210
fOJ
Special
Tool
List
and
further
information
of
Special
Tools
Page 15 of 548
DATSUN
210
Model
8310
Series
SECTIONET
ET
ENGINE
TUNE
UP
CONTENTS
EMISSION
CONTROL
DEVICES
BASIC
MECHANICAL
SYSTEM
ADJUSTING
INTAKE
AND
EXHAUST
VALVE
CLEARANCE
CHECKING
AND
ADJUSTING
DRIVE
BELTS
CHANGING
ENGINE
OIL
REPLACING
01
L
FI
L
TER
CHANGING
ENGINE
COOLANT
CHECKING
COOLING
SYSTEM
HOSES
AND
CONNECTIONS
CHECKING
ENGINE
COMPRESSION
IGNITION
AND
FUEL
SYSTEM
CHECKING
BATTERY
CHECKING
AND
ADJUSTING
IGNITION
TIMING
CHECKING
IGNITION
WIRING
CHECKING
AND
REPLACING
SPARK
PLUGS
CHECKING
AND
ADJUSTING
CARBURETOR
IDLE
RPM
AND
MIXTURE
RATIO
CHECKING
CHOKE
MECHANISM
Choke
plate
and
linkage
CHECKING
FUEL
SHUT
OFF
SYSTEM
FU
models
ET
2
ET
3
ET
3
ET
3
ET
3
ET
3
ET
4
ET
4
ET
4
ET
5
ET
5
ET
5
ET
6
ET
6
ET
7
ET
9
ET
9
REPLACING
FUEL
FILTER
ET
10
CHECKING
FUEL
LINES
Hoses
piping
connections
etc
ET
10
REPLACING
AIR
CLEANER
FILTER
ETlO
CHECKING
AUTOMATIC
TEMPERATURE
CONTROL
AIR
CLEANER
ET
10
EMISSION
CONTROL
SYSTEM
ET
11
CHECKING
VACUUM
FITTING
HOSES
AND
CONNECTIONS
ET
11
REPLACING
AIR
PUMP
AIR
CLEANER
FILTER
Except
FU
models
and
Canada
models
E
1122i
REPLACING
AIR
INDUCTION
VALVE
FILTER
FU
models
and
Canada
models
E
tlil1r2
C
REPLACING
PCV
VALVE
AND
FILTER
ETf
CHECKING
VENTI
LATION
HOSES
E1P12
CHECKING
VAPOR
LINES
Eli
J2
CHECKING
FUEL
TANK
VACUUM
RELIEF
I
f
III
VALVE
ET
13
REPLACING
CARBON
CANISTER
W
FILTER
ET
d
SERVICE
DATA
AND
SPECIFICATIONS
ET
14
TROUBLE
DIAGNOSES
AND
CORRECTIONS
ET
16
SPECIAL
SERVICE
TOOL
ET
23
Page 16 of 548
f
EMISSION
CONTROL
DEVICES
En
ine
model
I
AI4
I
A1S
B310
Non
CaliCor
Non
California
models
Califor
nia
Car
model
California
models
E
cept
for
C
nada
Canada
nia
modeb
models
Except
for
Canada
M
T
M
T
A
T
Ti
ansmiuion
M
T
A
T
Except
A
T
FU
M
T
A
T
Station
Wagon
FU
models
models
models
AIR
CLEAN
I
A
T
C
air
cleaner
I
X
I
X
X
I
X
I
X
I
X
I
X
I
X
X
ER
Idle
compensator
Dual
type
X
I
X
X
I
X
I
X
I
X
I
X
I
X
X
Fresh
air
duct
X
I
X
X
I
X
I
X
I
I
I
X
X
ENGINE
I
Early
fuel
evaporative
system
X
I
X
X
xl
X
I
X
I
X
I
X
X
BASE
Exhaust
gas
type
CARBV
I
P
T
C
auto
choke
X
I
X
X
X
I
X
I
X
I
X
I
X
X
m
RETOR
I
l
Thr
ttle
opener
X
X
X
X
I
I
X
I
X
I
X
X
Q
I
Fuel
shut
off
system
I
X
I
I
I
3
m
ll
i
Dash
po
t
X
X
X
X
I
X
I
X
I
X
I
X
X
N
l
IGNITION
I
H
I
C
ignitor
X
X
X
X
I
X
I
X
I
X
I
X
X
c
SYSTEM
Spark
timing
contra
system
T
e
S
X
X
X
I
I
I
I
l
X
X
I
X
ll
Thermal
vacuum
valve
X
X
X
I
X
I
I
I
I
X
X
c
Vacuum
delay
valve
X
I
X
I
I
I
X
I
0
X
A
I
S
I
Air
pump
Air
pump
air
cleaner
check
valve
I
X
X
I
X
I
X
I
I
I
I
x
X
A
B
valve
Combined
air
control
C
A
C
valve
I
X
X
I
I
I
I
I
I
X
Relief
valve
I
I
X
I
X
I
I
I
I
X
Air
induction
valve
Filter
A
B
valve
I
I
I
I
X
I
X
I
X
E
G
R
I
Exhaust
gas
recirculation
E
G
R
valve
I
X
I
X
I
X
I
X
I
X
I
X
I
X
I
X
X
SYSTEM
Thetmalvacuum
valve
I
X
I
X
I
X
I
X
I
X
I
X
I
X
I
X
X
Back
pressure
transducer
B
P
T
valve
I
X
I
X
I
X
I
X
I
X
I
I
I
X
X
CATALYZER
I
CatalytJc
converter
I
X
I
X
I
I
I
X
I
I
I
X
Newly
equipped
unit
on
1979
models
M
T
Manual
transmission
Remarks
X
Available
A
T
Automatic
transmission
Not
available
A
T
C
Aute
matic
tempeJ
ature
control
P
T
C
POlitive
temperature
coefficient
A
I
S
Air
injection
system
or
Air
induction
system
A
B
valve
Anti
backfire
valve
Page 19 of 548
sion
pressure
chances
are
that
piston
rings
are
worn
or
damaged
2
If
pressure
stays
low
the
likeli
hood
is
that
valve
is
sticking
or
seating
Engine
Tune
up
improperly
3
If
cylinder
compression
in
any
two
adjacent
cylinders
is
low
and
if
adding
oil
does
not
help
the
compres
sion
there
is
leakage
past
the
gasketed
surface
Oil
and
water
in
combustion
cham
bers
can
result
from
this
problem
IGNITION
AND
FUEL
SYSTEM
CHECKING
BATTERY
I
Remove
six
vent
plugs
and
check
electrolyte
level
in
each
battery
cell
If
necessary
pour
distilled
water
Overflow
Correct
Shortage
t
t
j
t
t
t
EE358
Fig
ET
6
Checking
Electrolyte
Level
2
Measure
the
specific
gravity
of
battery
electrolyte
E
T372
Fig
ET
7
Checking
Specific
Gravity
of
Battery
Electrolyte
Over
1
22
Full
charge
value
at
200C
680F
1
28
1
26
Permissible
value
Frigid
climates
Other
climates
Note
a
Clean
top
of
battery
and
terminals
with
a
solution
of
baking
soda
and
water
Rinse
off
and
dry
with
com
pressed
air
Top
of
battery
must
be
c1
n
to
prevent
current
leakage
between
terminals
and
from
posi
tive
terminal
to
hold
down
clamp
b
In
addition
to
current
leakage
prolonged
accumulation
of
acid
and
dirt
on
top
of
hattery
may
cause
blistering
of
the
material
covering
ronnector
straps
and
rorrosion
of
straps
c
Afte
r
tightening
terminals
coat
them
with
petrolatum
vaseline
to
protect
them
from
corrosion
CAUTION
If
the
battery
cables
are
disconnected
they
should
be
tightly
clamped
to
the
battery
terminals
to
secure
a
good
contact
Over
I
20
CHECKING
AND
ADJUSTING
IGNITION
TIMING
Check
spark
plugs
for
condition
2
Thoroughly
remove
dirt
and
dust
from
crank
pulley
at
timing
mark
location
and
front
cover
at
timing
indicator
3
Warm
up
engine
sufficiently
4
Connect
engine
tachometer
and
timing
light
in
their
proper
positions
5
Adjust
idling
speed
to
the
specifi
ed
value
Idling
speed
Manual
transmission
700
pm
Automatic
transmission
6S0
rpm
in
0
position
ET
S
WARNING
When
selector
lever
is
shifted
to
0
position
apply
parking
brake
and
block
both
front
and
rear
wheels
with
chocks
Note
a
On
FU
models
set
idling
speed
with
distributor
vacuum
hose
dis
connected
b
Disconnect
distributor
vacuum
hose
at
distributor
diaphragm
side
and
plug
hose
with
blind
plug
See
Fig
ET
8
ET501
Fig
ET
B
Disconnecting
Distributor
Vacuum
Hose
6
Check
ignition
timing
with
a
timing
light
to
ensure
that
it
is
adjust
ed
to
specifications
indicated
below
Ignition
timing
Manual
transmission
SO
B
T
0
C
f700
rpm
California
FU
models
100
B
T
0
C
f700
pm
Non
California
Canada
models
Automatic
transmission
SO
B
T
0
C
f6S0
rpm
California
models
Page 20 of 548
SO
B
T
D
C
l650
rpm
Non
California
models
except
Canada
100
B
T
D
C
650
rpm
Canada
models
Note
On
FU
models
ignition
timing
is
set
under
a
condition
where
distributor
vacuum
hose
is
discon
nected
If
necessary
adjust
ignition
timing
as
follows
I
Loosen
set
screw
until
dis
tributor
c
uJ
be
moved
by
hand
2
Adjust
ignition
timing
to
speci
fications
3
Lock
distributor
set
screw
and
make
sure
that
timing
is
correct
YJ
Fig
T
9
Adjusting
Ignition
Timing
7
On
FU
models
proceed
as
fol
lows
I
Remove
blind
plug
from
dis
tributor
vacuum
hose
and
connect
hose
to
distributor
diaphragm
2
If
engine
speed
varies
in
this
state
set
idling
speed
at
specified
value
with
throttle
adjusting
screw
CHECKING
IGNITION
WIRING
Use
an
ohmmeter
to
check
resist
ance
on
high
tension
cables
1
Disconnect
cables
from
spark
plugs
and
remove
distributor
together
with
high
tension
cables
Note
Do
not
remove
cables
from
cap
Engine
Tune
up
2
Connect
the
ohmmeter
between
cable
terminal
on
the
spark
plug
side
and
the
corresponding
electrode
inside
cap
3
If
the
resistance
is
more
than
30
000
ohms
remove
cable
from
cap
and
check
the
cable
resistance
only
If
resistance
is
still
more
than
30
000
ohms
replace
c3ble
assembly
Fig
ET
IO
Checking
High
Tension
Cable
u
s
A
models
Type
FU
models
Standard
Hot
type
Cold
type
U
S
A
models
Canada
models
r
1g
mm
in
FU
models
Canada
models
Tightening
torque
kg
m
ft
lb
ET
6
Stan
rd
Hot
type
Cold
type
S
aridard
Hot
type
Cold
type
CHECKING
AND
REPLACING
SPARK
PLUGS
I
Remove
and
clean
plugs
in
a
sand
blast
cleaner
Inspect
each
spark
plug
Make
sure
that
they
are
of
the
specifi
ed
heat
range
2
Inspect
insulator
for
cracks
or
chips
Check
both
center
and
ground
electrodes
3
If
they
are
excessively
worn
re
place
with
new
spark
plugs
4
Replace
spark
plugs
in
accordance
with
the
maintenance
schedule
BP
ES
ll
L46PW
l
BP4E
ll
L47PW
ll
BP7ES
ll
BP6ES
ll
L44PW
II
L4
PW
11
BP5
EQ
13
L46PM
13
BP4EQ
13
L47PM
13
BP6EQ
13
L45PM
13
BP7EQ
13
L44PM
13
BPR5ES
BPR4ES
BPR6ES
1
0
to
1
1
LQ39
to
0
043
l
l
to
1
3
0
043
to
0
051
0
8
to
0
9
0
031
to
0
035
1
5
to
i
6
P
to
14
Page 21 of 548
CHECKING
AND
ADJUSTING
CARBURETOR
IDLE
RPM
AND
MIXTURE
RATIO
WARNING
a
0
n
a
utomatic
transmission
models
checks
should
be
per
formed
with
the
lever
shifted
to
the
0
position
Be
sure
to
engage
parking
brake
and
to
lock
both
front
and
rear
wheels
with
wheel
chocks
b
Oepress
brake
pedal
while
ac
celerating
the
engine
to
prevent
forward
surge
of
car
c
After
idle
adjustment
has
been
made
shift
the
lever
to
the
N
or
P
positfon
and
remove
wheel
chocks
CAUTION
00
not
attempt
to
screw
the
idle
adjusting
screw
down
completely
00
ing
so
could
cause
damage
to
tip
which
in
turn
will
tend
to
cause
malfunctions
Note
a
When
measuring
CO
percentage
in
sert
probe
into
tail
pipe
more
than
40
cm
15
7
in
b
In
thee
case
of
air
conditioner
e
quipped
models
the
idle
adjust
ment
should
be
carried
out
while
the
air
conditioner
is
OFF
c
When
making
idle
adjustment
do
not
removt
air
cleaner
CO
Idle
adJustment
with
CO
meter
Idle
mixture
adjustment
requires
the
use
of
a
CO
meter
especially
for
California
models
When
preparing
to
adjust
idle
mixture
it
is
essential
to
have
the
meter
thoroughly
warmed
up
and
calibrated
1
Check
carburetor
pipes
for
proper
connection
2
Warm
up
engine
until
water
tern
perature
indicator
points
to
the
middle
of
gauge
The
procedure
to
warm
up
J
Engine
Tune
up
engine
is
not
specifically
recom
mended
Either
driving
car
or
operat
ing
engine
at
no
load
will
be
good
3
Make
sure
that
water
temperature
indicator
points
to
the
middle
Further
keep
engine
running
at
about
2
000
rpm
for
about
5
minutes
without
applying
load
to
engine
in
order
to
stabilize
engine
condition
Engine
hood
should
be
open
4
Run
engine
for
about
10
minutes
at
idling
speed
During
this
10
minutes
proceed
as
described
in
steps
5
to
9
below
5
I
Disconnect
air
hose
from
air
check
valve
and
install
cap
on
air
check
valve
Except
Canada
and
FU
models
EF244
Fig
ET
11
Disconnecting
Air
Hose
from
Air
Check
Valve
Except
Canada
and
FU
models
Canada
and
FU
models
2
Disconnect
air
hose
from
air
induction
pipe
and
install
cap
on
air
induction
pipe
Canada
and
FU
mod
els
EF849
Fig
ET
12
Installing
Cap
on
Air
Induction
Pipe
FU
models
3
On
FU
models
disconnect
dis
tributor
vacuum
hose
at
distributor
diaphragm
side
and
plug
hose
with
blind
plug
ET
7
ET501
Fig
ET
13
Disconnecting
Distributor
Vacuum
Hose
6
Race
engine
I
500
to
2
OOO
rpm
two
or
three
times
under
no
load
then
run
engine
for
one
minute
at
idling
speed
7
Adjust
throttle
adjusting
screw
until
engine
is
at
specified
speed
Engine
speed
Manual
transmission
700
rDm
Automatic
transmission
in
0
position
650
rpm
2
Fig
ET
14
Throttle
Adjusting
Screw
and
Idle
Adjusting
Screw
8
Check
ignition
timing
If
neces
sary
adjust
it
to
specifications
This
operation
need
n
t
be
carried
out
at
1
600
km
1
000
miles
service
Ignition
timing
Manual
transmission
50
B
T
0
C
f700
rpm
California
FU
models
100
B
T
O
C
noo
rpm
Non
California
Canada
models
Automatic
transmission
in
0
position
50
B
T
0
CJ650
rpm
California
model
Page 22 of 548
SO
B
T
D
C
650
rpm
Non
California
models
except
Canada
100
B
T
0
C
650
rpm
Canada
models
Note
On
FU
models
ignition
timing
t
under
a
con4ition
where
distnoutor
vacuum
hose
is
discon
nected
9
On
FU
models
proceed
as
fol
lows
I
Remove
blind
plug
from
dis
tributor
vacuum
hose
and
connect
hose
to
distributor
diaphragm
EC370A
Fig
ET
15
Connecting
Distributor
Vacuum
Hose
2
If
engine
speed
varies
in
this
state
set
idling
speed
at
specified
value
with
throttle
adjusting
screw
10
At
about
10
minutes
after
en
gine
is
run
at
idling
speed
adjust
idle
adjusting
screw
so
that
CO
percentage
is
at
specified
level
CO
percentage
Manual
transmission
2
t
1
at
700
rpm
Automatic
transmission
in
0
position
2
t
1
at
650
rpm
II
Repeat
procedures
as
described
in
steps
6
7
and
10
above
so
that
CO
percentage
is
at
specified
level
Check
ing
idle
CO
in
step
10
can
be
carried
out
right
after
step
7
Engine
Tune
up
11
Race
engine
1
500
to
2
000
rpm
two
or
three
times
under
no
load
and
make
sure
that
specified
CO
per
centage
is
obtained
13
I
Remove
cap
and
connect
air
hose
to
air
check
valve
Except
Canada
and
FU
models
2
Remove
p
and
connect
air
hose
to
air
induction
pipe
Canada
and
FU
models
If
engine
speed
increases
readjust
it
to
the
specified
speed
with
throttle
adjusting
screw
14
On
FU
models
proceed
as
follows
Open
throttle
valve
by
tuming
throttle
shaft
then
close
it
And
make
sure
throttle
valve
switch
of
fuel
shut
off
system
operates
click
sound
is
heard
or
continuity
turns
to
OFF
when
throttle
valve
is
closed
If
not
adjust
throttle
valve
switch
In
air
conditioner
equipped
models
inspection
in
step
13
should
be
carried
out
when
engine
is
running
with
air
conditioner
in
ON
F
l
CD
is
actuated
Refer
to
Checking
Fuel
Shut
off
System
in
this
section
CO
Idle
adjuatment
without
CO
mater
If
CO
meter
is
not
available
the
following
procedures
may
be
used
I
Check
carburetor
pipes
for
proper
comiection
2
Warm
up
engine
until
water
t
m
perature
indicator
points
to
the
middle
of
gauge
The
procedure
to
warm
up
engine
is
not
specifically
recom
mended
Either
driving
car
or
operat
ing
engine
at
no
load
will
be
good
3
Make
sure
that
water
temperature
indicator
points
to
the
middle
Further
keep
engine
running
at
about
2
000
rpm
for
about
5
minutes
without
applying
load
to
engine
in
order
to
stabilize
engine
condition
Engine
hood
should
be
open
4
Run
engine
for
about
10
minutes
at
idling
speed
During
this
10
minutes
proceed
as
described
in
steps
5
to
9
below
5
I
Disconnect
air
hose
from
air
check
valve
and
install
cap
on
air
ET
8
check
nlve
Except
Canada
and
FU
models
2
Disconnect
air
hose
from
air
induction
pipe
and
install
cap
on
air
induction
pipe
Canada
an
FU
models
3
On
FU
models
disconnect
dis
tributor
vacuum
hose
at
distributor
diaphragm
ide
and
plug
hose
with
blind
plug
6
Race
engine
1
500
to
2
000
rpm
two
or
three
times
under
no
load
then
run
engine
for
one
minute
at
idling
speed
7
Adjust
throttle
adjusting
screw
to
that
engine
speeds
are
as
indicated
below
Engine
speed
Manual
tra
mi
ion
except
FU
models
740
rpm
Automatic
transmission
in
0
position
665
rpm
FU
models
765
rpm
8
Check
ignition
timing
if
neces
sary
adjust
it
to
the
value
required
by
specifications
This
operation
need
not
be
carried
out
at
1
600
km
1
000
miles
service
9
On
FU
models
proceed
as
fol
lows
I
Remove
blind
plug
from
dis
tributor
vacuum
hose
and
connect
hose
to
distributor
diaphragm
2
If
engine
speed
varies
in
this
state
set
idling
speed
at
specified
value
given
in
step
7
with
throttle
adjusting
screw
10
At
about
10
minutes
after
en
gine
is
run
at
idling
speed
adjust
idle
adjusting
screw
until
maximum
rpm
is
obtained
II
Repeat
procedures
as
described
in
steps
6
7
and
10
above
until
engine
speed
at
best
idle
mixture
is
as
specified
in
step
7
Adjustment
in
step
10
can
be
carried
out
right
after
step
7
12
Turn
the
idle
adjustIng
screw
clockwise
until
engine
speed
drops
by
value
given
below
Engine
speed
drops
Manual
transmission
except
FU
models
Page 29 of 548
IBnition
and
fuel
system
Ignition
timing
Manual
transmission
models
Automatic
transmission
models
in
D
position
1
Spark
plug
Gap
U
s
A
models
Canada
models
FU
models
High
tension
cable
resistance
CO
percentage
at
idling
speed
No
air
Manual
transmission
models
Automatic
transmission
models
f
in
D
position
Evaporatlv
emission
control
system
Supplied
pressure
l
Pressure
variation
TIGHTENING
TORQUE
Valve
rocker
adjusting
nut
Spark
plug
Engine
Tune
up
degree
rpm
degree
rpm
mm
in
mm
in
mm
in
ohm
rpm
rpm
mmH29
inH20
mmH20
inHP
kg
m
ft
lb
kg
m
ft
lb
ET1S
SO
B
T
D
C
j700
rpm
California
FU
models
T
D
CJ700
i
m
r
Non
California
Canada
models
SO
B
T
D
C
j6S0
rpm
California
models
80
B
T
D
C
j6S0
rpm
Non
California
models
ex
cept
Canada
100
B
T
D
C
j6S0
rpm
Canada
models
1
0
to
l
l
0
039
to
0
043
0
8
to
0
9
0
031
to
0
035
LI
to
1
3
0
043
to
O
OSI
an
3O
OOO
2
r
1
700
2
r
1
6S0
400
IS
7S
less
than
2S
0
98
I
f
r
1
6
to
2
2
12
to
16
1
5
to
2
0
11
to
14
jf
0
Page 30 of 548
Engine
Tune
up
TROUBLE
DIAGNOSES
AND
CORRECTIONS
Condition
Probable
cause
CANNOT
CRANK
ENGINE
OR
SLOW
CRANKING
Improper
grade
oil
Discharged
battery
Faulty
battery
Loose
fan
belt
Malfunction
in
charge
system
Wiring
connection
loose
in
starting
circuit
F
ul1Y
ignition
switch
Faulty
starter
motor
Trouble
shooting
procedure
on
starting
circuit
Switch
on
the
starting
motor
with
light
ON
WheJlIJght
gOO
off
or
Ii
J1S
considerably
a
Check
battery
b
Check
connection
and
cable
c
Check
starter
motor
When
light
stays
bright
Corrective
action
Replace
with
proper
grade
oil
Charge
battery
Replace
Adjust
Inspect
Correct
Repair
or
replace
Repair
or
replace
a
Check
wlflng
connection
between
battery
and
starter
motor
b
Check
ignition
switch
c
Check
starter
motor
ENGINE
WILL
CRANK
NOR
LLY
BUT
WILL
NOT
START
In
this
case
the
following
trouble
causes
may
exist
but
in
many
cases
ignition
system
or
fuel
system
is
in
trouble
19
ition
syst
m
in
trouble
FII
1
system
in
trowb
Val
mechanism
do
not
work
properly
Low
compression
Trouble
shooting
procedure
Check
spark
plug
firstly
by
following
procedure
Disconnect
high
tension
cable
from
one
spark
plug
and
hold
it
about
10
mm
0
39
in
from
the
engine
metal
part
and
crank
the
engine
Good
spark
occurs
a
Check
spark
plug
b
Checkignition
timing
c
Check
fuel
system
d
Check
cylinder
compression
Check
the
current
now
in
primary
circuit
Very
high
current
Inspect
primary
circuit
for
short
Check
breaker
point
operation
except
tran
sistor
ignition
system
No
spark
occurs
ET
l
6
Page 31 of 548
Engine
Tune
up
Condition
Probable
cause
Low
or
no
current
Ignition
system
out
of
order
Burned
distributor
point
Improper
point
gap
Faulty
condenser
Leak
at
rotor
cap
and
rotor
Faulty
spark
plug
Improper
ignition
timing
Faulty
ignition
coil
Disconnecrion
of
high
tension
cable
Loose
connection
or
disconnection
in
primary
circuit
Lack
offuel
Dirty
fuel
filter
Dirty
or
clogged
fuel
pipe
Fuel
pump
will
not
w0rk
properly
Carburetor
choke
will
not
work
properly
Improper
adjustment
of
float
level
Improper
idling
Dirty
or
clogged
carburetor
Clogged
breather
pipe
of
fuel
tank
Malfunctionin
g
anti
dieseling
solenoid
valve
Malfunctioning
fuel
shut
off
system
FU
models
Incorrect
spark
plug
tightening
or
faulty
gasket
Improper
grade
engine
oil
or
low
viscosity
Incorrect
valve
clearance
Compression
leak
from
valve
seat
Sticky
valve
stem
Weak
or
damaged
valve
springs
Compression
leak
at
cylinder
head
gasket
Sticking
or
damaged
piston
ring
Worn
piston
ring
or
cylinder
Trouble
looting
procedure
Pour
the
engine
oil
from
plug
hole
and
then
measurt
cylinder
compression
Fuel
system
out
of
order
Low
compression
Compression
increases
Compression
does
not
change
ET
17
Corrective
action
Check
for
loose
terminal
or
disconnection
in
primary
circuit
Check
for
burned
points
Repair
or
replace
Adjust
Replace
Clean
or
replace
Clean
adjust
plug
gap
or
replace
Adjust
Replace
Replace
Repair
or
replace
Supply
Replace
Clean
Repair
or
replace
Check
and
adjust
Correct
Adjust
Disassemble
and
clean
Repair
and
clean
Check
for
loose
terminal
or
wire
harness
Check
fuel
shut
off
system
Adjust
or
re
place
if
necessary
Tighten
to
normal
torque
or
replace
gasket
Replace
with
proper
grade
oil
Adjust
Remove
cylinder
head
and
lap
valves
Correct
or
replace
valve
and
valve
guide
Replace
valve
springs
Replace
gasket
Replace
piston
rings
Overhaul
engine
Malfunctiong
cylinder
or
piston
ring
Compression
leaks
from
valve
cylinder
head
or
head
gasket