17. IGNITION SYSTEM
SERVICE
INFORMATION
17-1
TROUBLESHOOTING
17-
1
IGNITION TIMING
17-2
SPARK
PLUG
17-2
IGNITION
COl
L
17-2
ALTERNATOR
17-3
CDI
UNIT
17-3
PULSE GENERATOR
17-
4
SERVICE INFORMATION
GENERAL
•
Ignition
timing
cannot
be adjusted since the COl (Capacitive
Discharge
Ignition) unit is
non-adjustable
.
•
If
ignition
timing
is incorrect,
check
theeD
I
unit,
pulse
generator
and
alternator and replace any faul
t
y
parts.
SPECI
FICATI
ONS
Spark
plug
Standard
ND
NGK
X24EPR
-
UQ
DPRBEA-
9
Plug
gap:
Ignition
timing:
Initial:
Full
advance:
TOOL
For
cold
cl imate
(Below
5°
C/41
°
F)
ND
NGK
X22EPA
-U9
DPR7EA-9
0.8-0.9
mm
(0.031-0.035
in)
a"
±
2°
at
1,300
rpm
28°
±
2°
at
4,000 rpm
For extended
high
speed
riding
ND
NGK
X27EPR
-
UQ
DPA9EA-9
Specia
l
Multimeter
Digital multi meter
07308-
0020000
or
Kowa TH ·5H
·
1
07406-
0050000
or
KS-AHM·32·003;
U.S.A.
o nly
TROUBLESHOOTING
No
Spark
Plug
•
Engine
stop switch "OFF"
•
Poorly
connected, broken or shorted
wi
res
Between alternator and ignition coil
Between
COl
unit and
engine
stop
switch
Between
CO
l
unit and
ignition
coil
Between
CO
l
unit and ignition
switch
Between
ignition
coil and plug
Between pulse
generator and COl unit
•
Faulty ignition switch
•
Faulty
ignition coil
•
Faulty
COl
unit
•
Alternator
faulty
•
Faulty
pulse generator
Engine
Starts
but Runs Poorly
•
Ignition
primary circuit
Faulty ignition
coil
-
Loose
or bare wire
-
Faulty
pulse
generator
•
Secondary circuit
Alternator faulty
COl
unit faulty
Faulty pulse generator
17-1
D