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IGNITION
SYSTEM
TROUBLESHOOTING
No
spark
at
all
plugs (Faulty input system)
•
If there is no
spark
at
all plugs, the problem could be
at
the input of the ignition
system
(pulse generator,
power
input
circuit
of the spark
unit, neutral switch, side stand switch
or
spark
unit).
Check for loose or
poorly
connected spark unit
connector.
-
ABNORMAL
Poorly connected
connector
1
NORMAL
»
t
Check for
loose
or poorly
connected ignition
coil
4P mini
connector.
- ABNORMAL
Poorly connected
connector
r
NORMAL
♦
Check if
battery
voltage is measured between
power input
line
(Black/White)
and ground
(Green) at
the spark unit
connector
with the igni¬
tion switch ON and the engine
stop
switch
at
RUN
(page 1
5-6).
—
NO VOLTAGE
Faulty ignition switch or engine
stop
switch
•
Open circuit in wire harness
•
Loose
or poor contact of
related circuit con¬
nectors
I
BATTERY VOLTAGE MEASURED
I
Measure the
pulse
generator
resistance
at
the
unit
connector
(page
1
5-6).
- ABNORMAL
Check the
pulse
generator
(page
1
5-8).
NORMAL
ABNORMAL
t
•
Faulty pulse
gener¬
ator
I
NORMAL
•
Open circuit between the unit and
pulse gener¬
ator
•
Loose or
poor contact
of the pulse
generator
connector
Check the neutral switch for
continuity
at
the
spark
unit
connector
(page
1
5-6).
Check the
neutral switch.
-
ABNORMAL
T
T
NORMAL
ABNORMAL
t
•
Faulty neutral
switch
NORMAL
•
Open
circuit between the
unit and neutral
switch
• Loose
or
poor contact
of the neutral switch
connectors
>
Check the
side stand switch
at
the
spark unit
-
ABNORMAL
connector
(page
15-6).
Check
the side stand switch
(page 15-8).
I
NORMAL
ABNORMAL
I
*
GOOD
I
Faulty side stand
switch
f
•
Faulty spark unit
♦
Open circuit between the unit and side stand
switch
• Loose
or
poor
contact
of the side stand
switch
connectors
I
1 R-'?
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