Honda VFR800F 2014 Service Manual page 113

IGNITION SYSTEM
SERVICE INFORMATION
GENERAL
NOTICE
The
ECM may be damaged
if dropped.
Also if the connector
is
disconnected when current is flowing,
the excessive voltage may
damage the module. Always
turn off the ignition switch before servicing.
Use spark
plug
of the correct heat range.
Using a spark
plug
with an incorrect heat range can damage the engine.
Some electrical components may
be damaged if terminals or connectors are connected or disconnected while
the ignition switch
is
turned
ON and current is present.
A
faulty ignition system is
often related
to
poorly
connected
or
corroded
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.
The
ignition timing cannot be adjusted since the
ECM
is
factory preset.
When servicing the
ignition system, always follow the
steps
in
the troubleshooting table (page
5-5).
Direct ignition coils (ignition coil and spark plug cap are integrated) are adopted
in
this
motorcycle. AIso, the ignition coils
are
equipped with
ignitors. The ignition coil signal voltage from the
ECM
is converted
to
high voltage
in
the ignition
cbil.
For following components information, refer
to each section.
-
ignition switch (page
20-20)
-
engine stop switch (page
20-21)
-
engine stop relay (page 4-47)
-
bank angle sensor (page 4-46)
-
CKP sensor (page 4-45)
-
CMP sensor (page 4-44)
-
sidestand switch
lpage
20-22;
-
gear position switches (page
20-24)
TOOLS
lgnitionMate peak voltage tester
MTP07-0286 (U.S.A. only)
Peak voltage
adaptor
07HGJ-00201 00
(not available
in U.S A.) with
commercially available digital
multimeter (impedance 10 MO/DCV
minimum)
5-2