Honda VFR800F 2014 Service Manual page 374

BATTERY/CHARGING SYSTEM
SERVIGE INFORMATION
GENERAL
NOTICE
.
Always
turn OFF the ignition switch before disconnecting any electrical component.
.
Some electrical components may be damaged if terminals or connectors are connected or
disconnected while the ignition switch
is ON and current
is
present.
.
For extended storage, remove
the
battery,
give it a full
charge, and store
it
in
a
cool, dry space. For maximum service
life,
charge
the stored battery every 2 weeks.
.
For a battery remaining
in
a stored motorcycle, disconnect
the negative battery cable from the battery terminal.
.
The maintenance
free battery must be replaced when
it
reaches the end of its service
life,
.
The battery can be damaged if overcharged
or
undercharged,
or if
left
to discharge for a
long period. These same
conditions
contribute to shortening the "life span" of
the battery. Even under normal use, the performance
of
the battery deteriorates after
2
-
3
years.
.
Battery voltage may recover after battery charging, but under heavy load, battery voltage will drop quickly and eventually die
out.
For this reason.
the
charging
system is often suspected as
the problem.
Battery overcharge
often
results
from problems
in the
battery itself, which may appear
to
be an overcharging
symptom.
lf
one
of
the
battery
cells is shorted and battery
voltage
does
not increase, the regulator/rectifier supplies excess voltage
to the battery. Under these conditions, the electrolyte level
goes
down quickly.
.
Before troubleshooting
the
charging system, check
for
proper use and maintenance
of the
battery. Check
if the
battery
is
frequently under heavy load, such as having the headlight and tail light ON for
long periods
of
time
without
riding
the
motorcycle.
.
The battery will self-discharge
when the motorcycle is
not
in use.
For
this reason, charge the battery every 2
weeks to prevent
sulfation from occurring.
.
The current phase control generating/changing system is used
in
this motorcycle, Refer to
Technical
Feature for configuration of
this system
(page
1-37).
.
The regulator/rectifier has a self-diagnostic function that
enables
it
to detect faults
in
the system and the DTC can be read
by
the
MCS. However,
the DTC is not stored. Refer to PGM-FI system section
for
MCS
information
(page 4-6).
.
lnspect and troubleshoot the charging system according to the troubleshooting flow chart
(page
19-5).
.
For alternator stator
and MP sensor
service (page
12-21).
.
The following color codes used are indicated through out this section.
Bl = Black
Br = Brown
Bu
=
Blue
G =
Green
Lg = Light
Green
R
=
Red
Gr=Gray
O=Orange
V=Violet
Lb=LightBlue P=Pink
W=White
Y
=
Yellow
BATTERY
CHARGING
.
Turn power ON/OFF at the charger, not
at
the battery terminal.
.
For battery charging, do not
exceed the charging current and time specified on the battery. Using excessive current or extending
the charging
time
may damage
the battery.
.
Quick charging should only be done
in an emergency; slow charging is preferred.
BATTERY
TESTING
Refer
to the
instruction
of the
Operation
Manual
for the
recommended battery tester
for details about
battery testing.
The
recommended battery
tester puts a "load" on the
battery so
the
actual battery condition
can be measured.
RECOMMENDED
BATTERY TESTER: Micro 404XL (U.S.A.
only)
.
The battery gives off explosive
gases;
keep sparks, flames, and cigarettes away. Provide adequate ventilation when
charging.
.
The battery contains sulfuric acid (electrolyte). Contact with skin or eyes may cause severe burns. Wear protective clothing
and
a
face
shield.
-
lf electrolyte gets on your skin. flush with water,
-
lf electrolyte
gets
in
youreyes,
flush with
waterforat
least
15
minutes and call a physician immediately,
.
Electrolyte is poisonous.
-
lf swallowed,
drink large quantities
of
water or
milk and call your local Poison Control Center or
a physician immediately.
19-2
AWARNING