I
I
THREE CYLINDER IGNITION (Con't.)
4.1
Checking at the time
of
out
of
order
If
engine
does
not start
or
does
not run in good condition
and
if
checking
is
required
to
confirm whether
or
not
each
part
is
normal check the following:
(
1)
Lighting Coi I
Check
continuity
of
coils
to
the stator (ground potential)
and
the
lead
wire (yellow)
by
a circuit tester.
If
resistance
is
read
about 0.75 ohms
it
shows
coils
are
normal.
(2)
Exciter Coil I
If
the tester shows
that
the exciter coil
has
resistance
about
470 OHMS between the stator
and
the
lead
wire
(red)
it
is
normal.
(3) Exciter Coil II (Pulser Coil)
If
the tester
shows
resistance 20-22 ohms between
lead
wire
(green)
and
the
lead
wire (blue)
and
if
it
is
co
be-
tween the stator and the
lead
wire (either
green
or blue)
it
is
norma
I.
4.2 Ignition Coil
(
1)
Using the tester, check
if
there
is
breakdown
of
a
primary
coil
and
secondary coil.
It
is
normal
if
the pri-
mary resistance
is
0.
7 Ohms
and
the secondary
is
12K
ohms.
4.3
CDI
unit
In general, the checking
of
CDI units
is
not
easy
and
it
is
desirable
to
use
a
unit
tester. But
if it
cannot be available
check
it
as
per the following
as
a preliminary method:
(
1)
If
resistance shown between the
unit
case
and
each
lead
wire
is
co.
(2)
If
a pointer
of
tester
moves
when connected between
the
lead
wire (black)
and
the plus terminal
of
tester and
57
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