ENGINE
ELECTRICAL
SYSTEM
TROUBLE
DIAGNOSES
AND
CORRECTIONS
When
engine
does
not
start
If
there
is
no
trouble
in
fuel
system
ignition
system
should
be
checked
This
can
be
easily
done
by
detaching
a
high
tension
cable
from
spark
plug
starting
engine
and
observing
condition
of
spark
that
occurs
between
high
tension
cable
and
spark
plug
terminal
After
checking
this
repair
as
necessary
Length
of
Trouble
location
Cause
Remedies
spark
gap
No
sparks
at
all
Distributor
Defective
insulation
of
condenser
Replace
Breakage
of
lead
wire
on
low
tension
side
Repair
Defective
insulation
of
cap
and
rotor
head
Replace
Point
does
not
open
or
close
Repair
Ignition
coil
Wire
breakage
or
short
circuit
of
coil
Replace
with
new
one
High
tension
cable
Wire
coming
off
Repair
Defective
insulation
Replace
I
to
2
mm
0
0394
Distributor
Point
gap
too
wide
Correct
to
0
0787
in
or
Oil
sticking
on
point
Clean
irregular
Point
burnt
too
much
Replace
Less
than
6
mm
Spark
plugs
Electrode
gap
too
wide
Correct
or
replace
0
2362
in
Too
much
carbon
Clean
or
replace
Broken
neck
of
insulator
Replace
Expiry
of
plug
life
Replace
2
When
engine
rotates
but
does
not
run
smoothly
In
this
case
there
are
many
causes
resulting
from
the
ignition
system
and
other
engine
conditions
not
related
to
ignition
Therefore
first
complete
inspection
of
ignition
system
should
be
carried
out
EE
39
