Honda CB900F 919 (2001) [378/432] Starte

Honda CB900F 919 (2001) [378/432] Starte
17.
IGNITION SYSTEM
SYSTEM DIAGRAM
SERVICE INFORMATION
TROUBLESHOOTING
IGNITION SYSTEM INSPECTION
SERVICE INFORMATION
GENERAL
17-0
17-1
17-3
17-4
ICGNITION COIL
IGNITION PULSE GENERATOR
IGNITION TIMING
ECM (ENGINE CONTROL MODULE)
17-7
17-7
17
-10
17-11
Some
electrical
components
may
be
damaged
if
terminals
or
connectors
are
connected
or
disconnected
while
the
igni-
tion
switch
is ON and
current
is
present
.
When
servicing
the
ignition
system,
always
follow
the
steps in
the
troubleshooting
sequence
on page 17-3.
This motorcycle's
Ignition
Control
Module
(ICM) is
built
into
the Engine Control
Module
IECM!.
The
ignition
timing
does
not
normally
need
to
be
adjusted
since
the
ECM is
factory
preset.
The ECM
may
be
damaged
if
dropped
.
Also
if
the
connector
is
disconnected
when
current
is
flow
ing,
the
excessive
volt-
age
may
damage
the
module
.
Always
turn
off
the
ignition
switch
before
servicing
.
A
faulty
ignition
system
is
often
related
to
poor
connections
. Check
those
connections
before
proceeding
.
Make
sure
the
battery
is
adequately
charged.
Using
the
starter
motor
with
a
weak
battery
results in a
slower
engine
cranking
speed as
well
as no spark at the spark plug.
Use
spark
plug
of
the
correct
heat range.
Using
spark
plug
with
an
incorrect
heat range can
damage
the
engine.
Refer
to
section
5
for
Throttle
Position (TP) sensor,
cam
pulse
generator
and
ECM
inspection.
SPECIFICATIONS
ITEM SPECIFICATIONS
Spark plug
(Iridium!
NGK
CR8
EH·9IStandard!/
CR9EH
·9 (Forextendedhigh speedrunning!
DENSO
U
24f
ER9IStandard!/ U27F
ER9
(Forextendedhigh speedrunning!
Spark plug gap 0.80 - 0.90
mm
10.031 - 0.035 in!
Ignition
coil
peak
voltage
100 V
minimum
Ignition
pulse
generator
peak
voltage
0.7 V
minimum
Ignition
timing
I"F"
mark) 8"BTDC at idle
17-1

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