2006 YAMAHA YBR125 battery

TABLE OF CONTENTS
Battery .......................................... 6-28
Replacing the fuse ........................ 6-30
Replacing the headlight bulb ........ 6-31
Replacing the tail/brake light
bulb ........................................... 6-32
Replacing a turn signal light
bulb ........................................... 6-33
Replacing the auxiliary light
bulb ........................................... 6-33
Front wheel ................................... 6-34
Rear wheel ................................... 6-36
Troubleshooting ............................ 6-37
Troubleshooting chart ................... 6-38
MOTORCYCLE CARE AND
STORAGE.......................................... 7-1
Care ................................................ 7-1
Storage ...........................................7-3
SPECIFICATIONS ............................. 8-1
CONSUMER INFORMATION............. 9-1
Identification numbers .................... 9-1
U3D9E0E0.book Page 2 Saturday, December 25, 2004 11:35 AM

DESCRIPTION
2-1
2
EAU10410
Left view1. Headlight (page 6-31)
2. Fuel cock (page 3-7)
3. Fuse (page 6-30)
4. Battery (page 6-28)
5. Owner’s tool kit (page 6-1)
6. Luggage strap holder (page 3-10)
7. Shock absorber assembly spring preload adjusting ring (page 3-9)
8. Engine oil drain bolt (page 6-9)9. Shift pedal (page 3-4)U3D9E0E0.book Page 1 Saturday, December 25, 2004 11:35 AM

OPERATION AND IMPORTANT RIDING POINTS
5-1
5
EAU15950
WARNING
EWA10270


Become thoroughly familiar
with all operating controls and
their functions before riding.
Consult a Yamaha dealer re-
garding any control or function
that you do not thoroughly un-
derstand.


Never start the engine or oper-
ate it in a closed area for any
length of time. Exhaust fumes
are poisonous, and inhaling
them can cause loss of con-
sciousness and death within a
short time. Always make sure
that there is adequate ventila-
tion.


Before starting out, make sure
that the sidestand is up. If the
sidestand is not raised com-
pletely, it could contact the
ground and distract the opera-
tor, resulting in a possible lossof control.
EAU36991
Starting a cold engine In order for the starting 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.WARNING
EWA14160
Before starting the engine, check
the operation of the starting circuit
cut-off system according to the pro-cedure described on page 3-10.
1. Turn the fuel cock lever to “ON” or
“”.
2. Turn the key to “ON”.
3. Shift the transmission into the neu-
tral position.NOTE:When the transmission is in the neutral
position, the neutral indicator light
should be on, otherwise have a
Yamaha dealer check the electrical cir-cuit.4. Turn the starter (choke) on and
completely close the throttle. (See
page 3-8.)
5. Start the engine by pushing the
start switch or by pushing the kick-
starter lever down.
NOTE:If the engine fails to start when using
the start switch, release it, wait a few
seconds, and then try again. Each
starting attempt should be as short as
possible to preserve the battery. Do not
crank the engine more than 10 seconds
on any one attempt. If the engine does
not start with the starter motor, try usingthe kickstarter.CAUTION:
ECA11040
For maximum engine life, never ac-
celerate hard when the engine iscold!
6. When the engine is warm, turn the
starter (choke) off.
U3D9E0E0.book Page 1 Saturday, December 25, 2004 11:35 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-2
6
EAU17710
Periodic maintenance and lubrication chart NOTE:

The annual checks must be performed every year, except if a kilometer-based maintenance is performed in-
stead.


From 30000 km, repeat the maintenance intervals starting from 6000 km.


Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and technicalskills.
NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING (× 1000 km)
ANNUAL
CHECK
1 6 12 18 24
1*Fuel lineCheck fuel hoses for cracks or damage.√√√√ √
2*Fuel cock filterCheck condition.√√
3 Spark plugCheck condition.
Clean and regap.√√
Replace.√√
4*ValvesCheck valve clearance.
Adjust.√√√√
5 Air filter elementClean.√√
Replace.√√
6*BatteryCheck electrolyte level and specific gravity.
Make sure that the breather hose is properly routed.√√√√ √
7ClutchCheck operation.
Adjust.√√√√√
8*Front brakeCheck operation, fluid level and vehicle for fluid leakage.√√√√√ √
Replace brake pads. Whenever worn to the limit
U3D9E0E0.book Page 2 Saturday, December 25, 2004 11:35 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-28
6
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.
EAU23321
Battery A poorly maintained battery will corrode
and discharge quickly. The electrolyte
level, battery lead connections and
breather hose routing should be
checked before each ride and at the in-
tervals specified in the periodic mainte-
nance and lubrication chart.
To check the electrolyte level
1. Place the vehicle on a level sur-
face and hold it in an upright posi-
tion.NOTE:Make sure that the vehicle is positioned
straight up when checking the electro-lyte level.
2. Remove panel B. (See page 6-5.)
3. Check the electrolyte level in the
battery.NOTE:The electrolyte should be between theminimum and maximum level marks.4. If the electrolyte is at or below the
minimum level mark, add distilled
water to raise it to the maximum
level mark.
WARNING
EWA10770


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
1. Maximum level mark
2. Minimum level mark
3. Negative battery lead
4. Positive battery lead (red)
U3D9E0E0.book Page 28 Saturday, December 25, 2004 11:35 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-29
6 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.


Take care not to spill electrolyte
on the drive chain, as this may
weaken it, shorten chain life and
possibly result in an accident.


KEEP THIS AND ALL BATTER-
IES OUT OF THE REACH OFCHILDREN.
CAUTION:
ECA10610
Use only distilled water, as tap water
contains minerals that are harmfulto the battery.
5. Check and, if necessary, tighten
the battery lead connections and
correct the breather hose routing.
6. Install the panel.
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.
2. If the battery will be stored for more
than two months, check the specif-
ic gravity of the electrolyte at least
once a month and fully charge the
battery whenever 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 and1. Battery
2. Battery breather hose
1. Battery breather hose
U3D9E0E0.book Page 29 Saturday, December 25, 2004 11:35 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-30
6that the breather hose is properly
routed, in good condition, and not
obstructed.
CAUTION:
ECA10600
If the breather hose is positioned in
such a way that the frame is ex-
posed to electrolyte or gas expelled
from the battery, the frame could
suffer structural and external dam-ages.
EAU23502
Replacing the fuse The fuse holder is located behind panel
B. (See page 6-5.)
If the fuse is blown, replace it as fol-
lows.
1. Turn the key to “OFF” and turn off
all electrical circuits.
2. Remove the blown fuse, and then
install a new fuse of the specified
amperage.
CAUTION:
ECA10640
Do not use a fuse of a higher amper-
age rating than recommended to
avoid causing extensive damage to
the electrical system and possibly afire.
3. Turn the key to “ON” and turn on
the electrical circuits to check if the
devices operate.
4. If the fuse immediately blows
again, have a Yamaha dealer
check the electrical system.
1. FuseSpecified fuse:
15.0 A
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-38
6
EAU25962
Troubleshooting chart
WARNING
EWA10840
Keep away open flames and do not smoke while checking or working on the fuel system.
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
Wet
Dry
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.Open the throttle halfway and
operate the electric starter.
Operate the
electric starter.4. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.Check fluid, recharge,
check connections.
U3D9E0E0.book Page 38 Saturday, December 25, 2004 11:35 AM