2009 YAMAHA YBR125 battery

TABLE OF CONTENTS
Battery .......................................... 6-26
Replacing the fuse ........................ 6-28
Replacing the headlight bulb ........ 6-29
Replacing the tail/brake light
bulb ........................................... 6-30
Replacing a turn signal light
bulb ........................................... 6-31
Replacing the auxiliary light
bulb ........................................... 6-31
Front wheel ................................... 6-32
Rear wheel ................................... 6-33
Troubleshooting ............................ 6-35
Troubleshooting chart ................... 6-36
MOTORCYCLE CARE AND
STORAGE.......................................... 7-1
Matte color caution ......................... 7-1
Care ................................................ 7-1
Storage ...........................................7-3
SPECIFICATIONS ............................. 8-1
CONSUMER INFORMATION............. 9-1
Identification numbers .................... 9-1
U3D9E2E0.book Page 2 Thursday, November 6, 2008 10:54 AM

DESCRIPTION
2-1
2
EAU10410
Left view1. Headlight (page 6-29)
2. Fuse (page 6-28)
3. Battery (page 6-26)
4. Owner’s tool kit (page 6-1)
5. Luggage strap holder (page 3-10)
6. Shock absorber assembly spring preload adjusting ring (page 3-9)
7. Engine oil drain bolt (page 6-9)
8. Shift pedal (page 3-5)U3D9E2E0.book Page 1 Thursday, November 6, 2008 10:54 AM

OPERATION AND IMPORTANT RIDING POINTS
5-1
5
EAU15951
Read the Owner’s Manual carefully to
become familiar with all controls. If
there is a control or function you do not
understand, ask your Yamaha dealer.
WARNING
EWA10271
Failure to familiarize yourself with
the controls can lead to loss of con-
trol, which could cause an accidentor injury.
EAU43184
Starting the engine In order for the ignition circuit cut-off
system to enable starting, one of the
following conditions must be met:

The transmission is in the neutral
position.


The transmission is in gear with
the clutch lever pulled and the sid-
estand up.
See page 3-11 for more informa-
tion.
1. Turn the key to “ON”.
2. Shift the transmission into the neu-
tral position. (See page 5-2.) The
neutral indicator light should come
on. If not, ask a Yamaha dealer to
check the electrical circuit.
3. Start the engine by pushing the
start switch or by pushing the kick-
starter lever down. NOTICE: For
maximum engine life, never ac-
celerate hard when the engine is
cold!
[ECA11041]
If the engine fails to start when us-
ing the start switch, release it, wait
a few seconds, and then try again.
Each starting attempt should be as
short as possible to preserve thebattery. Do not crank the engine
more than 10 seconds on any one
attempt. If the engine does not
start with the starter motor, try us-
ing the kickstarter.
U3D9E2E0.book Page 1 Thursday, November 6, 2008 10:54 AM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-26
6
EAU45511
Checking the steering Worn or loose steering bearings may
cause danger. Therefore, the operation
of the steering must be checked as fol-
lows at the intervals specified in the pe-
riodic maintenance and lubrication
chart.
1. Place the vehicle on the center-
stand. WARNING! To avoid inju-
ry, securely support the vehicle
so there is no danger of it falling
over.
[EWA10751]
2. Hold the lower ends of the front
fork legs and try to move them for-
ward and backward. If any free
play can be felt, have a Yamaha
dealer check or repair the steering.
EAU23290
Checking the wheel bearings The front and rear wheel bearings must
be checked at the intervals specified in
the periodic maintenance and lubrica-
tion chart. If there is play in the wheel
hub or if the wheel does not turn
smoothly, have a Yamaha dealer check
the wheel bearings.
EAU23385
Battery The battery is located behind panel B.
(See page 6-6.)
This model is equipped with a VRLA
(Valve Regulated Lead Acid) battery.
There is no need to check the electro-
lyte or to add distilled water. However,
the battery lead connections need to be
checked and, if necessary, tightened.NOTICE
ECA10620
Never attempt to remove the battery
cell seals, as this would permanent-ly damage the battery.1. Battery
2. Negative battery terminal
3. Positive battery terminal
U3D9E2E0.book Page 26 Thursday, November 6, 2008 10:54 AM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-27
6
WARNING
EWA10760


Electrolyte is poisonous and
dangerous since it contains sul-
furic acid, which causes severe
burns. Avoid any contact with
skin, eyes or clothing and al-
ways shield your eyes when
working near batteries. In case
of contact, administer the fol-
lowing FIRST AID.
EXTERNAL: Flush with plenty
of water.
INTERNAL: Drink large quan-
tities of water or milk and im-
mediately call a physician.
EYES: Flush with water for 15
minutes and seek prompt
medical attention.


Batteries produce explosive hy-
drogen gas. Therefore, keep
sparks, flames, cigarettes, etc.,
away from the battery and pro-
vide sufficient ventilation when
charging it in an enclosed
space.


KEEP THIS AND ALL BATTER-
IES OUT OF THE REACH OFCHILDREN.
To charge the battery
Have a Yamaha dealer charge the bat-
tery as soon as possible if it seems to
have discharged. Keep in mind that the
battery tends to discharge more quickly
if the vehicle is equipped with optional
electrical accessories.
NOTICE
ECA16520
To charge a VRLA (Valve Regulated
Lead Acid) battery, a special (con-
stant-voltage) battery charger is re-
quired. Using a conventional battery
charger will damage the battery. If
you do not have access to a con-
stant-voltage battery charger, have aYamaha dealer charge your battery.
To store the battery
1. If the vehicle will not be used for
more than one month, remove the
battery, fully charge it, and then
place it in a cool, dry place.
NOTICE: When removing thebattery, be sure the key is
turned to “OFF”, then discon-
nect the negative lead before
disconnecting the positive lead.
[ECA16302]
2. If the battery will be stored for more
than two months, check it at least
once a month and fully charge it if
necessary.
3. Fully charge the battery before in-
stallation.
4. After installation, make sure that
the battery leads are properly con-
nected to the battery terminals.NOTICE
ECA16530
Always keep the battery charged.
Storing a discharged battery cancause permanent battery damage.
U3D9E2E0.book Page 27 Thursday, November 6, 2008 10:54 AM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-36
6
EAUT1981
Troubleshooting chart
Check the fuel level in
the fuel tank.1. Fuel
There is enough fuel.
There is no fuel.
Check the compression.
Supply fuel.
The engine does not start.
Check the compression.
Operate the electric starter.2. Compression
There is compression.
There is no compression.
Check the ignition.
Have a Yamaha dealer
check the vehicle.
Remove the spark plug
and check the electrodes.3. Ignition
Wipe off with a dry cloth and correct the
spark plug gap, or replace the spark plug.
Have a Yamaha dealer check the vehicle.
The engine does not start.
Have a Yamaha dealer
check the vehicle.
The engine does not start.
Check the battery.
Operate the electric starter.4. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.Check the battery lead connections,
and charge the battery if necessary.
DryWet
Operate the electric starter.
U3D9E2E0.book Page 36 Thursday, November 6, 2008 10:54 AM

MOTORCYCLE CARE AND STORAGE
7-4
7 3. Perform the following steps to pro-
tect the cylinder, piston rings, etc.
from corrosion.
a. Remove the spark plug cap
and spark plug.
b. Pour a teaspoonful of engine oil
into the spark plug bore.
c. Install the spark plug cap onto
the spark plug, and then place
the spark plug on the cylinder
head so that the electrodes are
grounded. (This will limit spark-
ing during the next step.)
d. Turn the engine over several
times with the starter. (This will
coat the cylinder wall with oil.)
e. Remove the spark plug cap
from the spark plug, and then
install the spark plug and the
spark plug cap. WARNING! To
prevent damage or injury
from sparking, make sure to
ground the spark plug elec-
trodes while turning the en-
gine over.
[EWA10951]
4. Lubricate all control cables and the
pivoting points of all levers and
pedals as well as of the side-
stand/centerstand.5. Check and, if necessary, correct
the tire air pressure, and then lift
the motorcycle so that both of its
wheels are off the ground. Alterna-
tively, turn the wheels a little every
month in order to prevent the tires
from becoming degraded in one
spot.
6. Cover the muffler outlet with a
plastic bag to prevent moisture
from entering it.
7. Remove the battery and fully
charge it. Store it in a cool, dry
place and charge it once a month.
Do not store the battery in an ex-
cessively cold or warm place [less
than 0 °C (30 °F) or more than 30
°C (90 °F)]. For more information
on storing the battery, see page
6-26.
TIPMake any necessary repairs beforestoring the motorcycle.
U3D9E2E0.book Page 4 Thursday, November 6, 2008 10:54 AM

SPECIFICATIONS
8-2
8
5th:
21/24 (0.875)
Chassis:Frame type:
Diamond
Caster angle:
26.33 °
Trail:
90.0 mm (3.54 in)Front tire:Type:
Tubeless
Size:
2.75-18 42P
Manufacturer/model:
CHENG SHIN/C-910Rear tire:Type:
Tubeless
Size:
90/90-18 57P
Manufacturer/model:
CHENG SHIN/C-905Loading:Maximum load:
196 kg (432 lb)
(Total weight of rider, passenger, cargo and
accessories)Tire air pressure (measured on cold
tires):Loading condition:
0–90 kg (0–198 lb)
Front:
175 kPa (1.75 kgf/cm², 25 psi)Rear:
200 kPa (2.00 kgf/cm², 29 psi)
Loading condition:
90–196 kg (198–432 lb)
Front:
175 kPa (1.75 kgf/cm², 25 psi)
Rear:
280 kPa (2.80 kgf/cm², 41 psi)
Front wheel:Wheel type:
Cast wheel
Rim size:
J18 x MT1.85Rear wheel:Wheel type:
Cast wheel
Rim size:
J18 x MT1.85Front brake:Type:
Single disc brake
Operation:
Right hand operation
Recommended fluid:
DOT 3 or 4Rear brake:Type:
Drum brake
Operation:
Right foot operationFront suspension:Type:
Telescopic forkSpring/shock absorber type:
Coil spring/oil damper
Wheel travel:
120.0 mm (4.72 in)
Rear suspension:Type:
Swingarm
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
105.0 mm (4.13 in)Electrical system:Ignition system:
TCI (digital)
Charging system:
AC magnetoBattery:Model:
YTX7L-BS
Voltage, capacity:
12 V, 6.0 AhHeadlight:Bulb type:
IncandescenceBulb voltage, wattage × quantity:Headlight:
12 V, 35 W/35 W × 1
Tail/brake light:
12 V, 5.0 W/21.0 W × 1
Front turn signal light:
12 V, 10.0 W × 2
Rear turn signal light:
12 V, 10.0 W × 2
U3D9E2E0.book Page 2 Thursday, November 6, 2008 10:54 AM