2006 YAMAHA YBR125 light

TABLE OF CONTENTSSAFETY INFORMATION ..................1-1
DESCRIPTION ..................................2-1
Left view ..........................................2-1
Right view ........................................2-2
Controls and instruments.................2-3
INSTRUMENT AND CONTROL
FUNCTIONS.......................................3-1
Main switch/steering lock ................3-1
Indicator lights ................................3-2
Speedometer unit ...........................3-2
Tachometer ....................................3-3
Fuel gauge ......................................3-3
Handlebar switches ........................3-3
Clutch lever .....................................3-4
Shift pedal .......................................3-4
Brake lever .....................................3-5
Brake pedal ....................................3-5
Fuel tank cap ..................................3-5
Fuel .................................................3-6
Catalytic converter ..........................3-7
Fuel cock ........................................3-7
Starter (choke) lever .......................3-8
Kickstarter .......................................3-9
Adjusting the shock absorber
assemblies ..................................3-9
Carrier ...........................................3-10
Luggage strap holders ..................3-10
Starting circuit cut-off system .......3-10PRE-OPERATION CHECKS............. 4-1
Pre-operation check list .................. 4-2
OPERATION AND IMPORTANT
RIDING POINTS................................. 5-1
Starting a cold engine .................... 5-1
Starting a warm engine .................. 5-2
Shifting ........................................... 5-2
Tips for reducing fuel
consumption ............................... 5-3
Engine break-in .............................. 5-3
Parking ........................................... 5-4
PERIODIC MAINTENANCE AND
MINOR REPAIR................................. 6-1
Owner’s tool kit ............................... 6-1
Periodic maintenance and
lubrication chart .......................... 6-2
Removing and installing the
cowling and panels ..................... 6-5
Checking the spark plug ................. 6-8
Engine oil ....................................... 6-9
Cleaning the air filter element ...... 6-11
Adjusting the carburetor ............... 6-12
Adjusting the engine idling
speed ........................................ 6-13
Adjusting the throttle cable free
play ........................................... 6-13
Valve clearance ............................ 6-14
Tires ............................................. 6-14
Cast wheels .................................. 6-16Adjusting the clutch lever
free play .................................... 6-17
Checking the front brake lever
free play .................................... 6-18
Adjusting the brake pedal
free play .................................... 6-18
Adjusting the rear brake light
switch ....................................... 6-19
Checking the front brake pads
and rear brake shoes ............... 6-20
Checking the front brake fluid
level .......................................... 6-20
Changing the brake fluid .............. 6-21
Drive chain slack .......................... 6-22
Cleaning and lubricating the drive
chain ......................................... 6-23
Checking and lubricating the
cables ....................................... 6-24
Checking and lubricating the
throttle grip and cable ............... 6-24
Checking and lubricating the
brake and shift pedals .............. 6-24
Checking and lubricating the
brake and clutch levers ............ 6-25
Checking and lubricating the
centerstand ............................... 6-26
Lubricating the swingarm
pivots ........................................ 6-26
Checking the front fork ................. 6-26
Checking the steering .................. 6-27
Checking the wheel bearings ....... 6-28U3D9E0E0.book Page 1 Saturday, December 25, 2004 11:35 AM

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

SAFETY INFORMATION
1-3
1Loading
The total weight of the operator, pas-
senger, accessories and cargo must
not exceed the maximum load limit.
When loading within this weight limit,
keep the following in mind:

Cargo and accessory weight
should be kept as low and close to
the motorcycle as possible. Make
sure to distribute the weight as
evenly as possible on both sides of
the motorcycle to minimize imbal-
ance or instability.


Shifting weights can create a sud-
den imbalance. Make sure that ac-
cessories and cargo are securely
attached to the motorcycle before
riding. Check accessory mounts
and cargo restraints frequently.


Never attach any large or heavy
items to the handlebar, front fork,
or front fender. These items, in-
cluding such cargo as sleepingbags, duffel bags, or tents, can
create unstable handling or slow
steering response.
Accessories
Genuine Yamaha accessories have
been specifically designed for use on
this motorcycle. Since Yamaha cannot
test all other accessories that may be
available, you must personally be re-
sponsible for the proper selection, in-
stallation and use of non-Yamaha
accessories. Use extreme caution
when selecting and installing any ac-
cessories.
Keep the following guidelines in mind,
as well as those provided under “Load-
ing” when mounting accessories.

Never install accessories or carry
cargo that would impair the perfor-
mance of your motorcycle. Care-
fully inspect the accessory before
using it to make sure that it does
not in any way reduce ground
clearance or cornering clearance,limit suspension travel, steering
travel or control operation, or ob-
scure lights or reflectors.
 Accessories fitted to the handle-
bar or the front fork area can
create instability due to improper
weight distribution or aerody-
namic changes. If accessories
are added to the handlebar or
front fork area, they must be as
lightweight as possible and
should be kept to a minimum.
 Bulky or large accessories may
seriously affect the stability of
the motorcycle due to aerody-
namic effects. Wind may at-
tempt to lift the motorcycle, or
the motorcycle may become un-
stable in cross winds. These ac-
cessories may also cause
instability when passing or being
passed by large vehicles.
 Certain accessories can dis-
place the operator from his or
her normal riding position. This
improper position limits the free-
dom of movement of the opera-
Maximum load:
200 kg (441 lb)
chapter1 Page 3 Friday, January 7, 2005 4:04 PM

SAFETY INFORMATION
1-4
1 tor and may limit control ability,
therefore, such accessories are
not recommended.


Use caution when adding electri-
cal accessories. If electrical acces-
sories exceed the capacity of the
motorcycle’s electrical system, an
electric failure could result, which
could cause a dangerous loss of
lights or engine power.
Gasoline and exhaust gas


GASOLINE IS HIGHLY FLAMMA-
BLE:
Always turn the engine off when
refueling.
Take care not to spill any gaso-
line on the engine or exhaust
system when refueling.
Never refuel while smoking or in
the vicinity of an open flame.


Never start the engine or let it run
for any length of time in a closed
area. The exhaust fumes are poi-
sonous and may cause loss of
consciousness and death within a
short time. Always operate your
motorcycle in an area that has ad-
equate ventilation.


Always turn the engine off before
leaving the motorcycle unattended
and remove the key from the main
switch. When parking the motor-
cycle, note the following:
The engine and exhaust system
may be hot, therefore, park the
motorcycle in a place where pe-
destrians or children are not like-
ly to touch these hot areas.
Do not park the motorcycle on a
slope or soft ground, otherwise it
may fall over.
Do not park the motorcycle near
a flammable source (e.g. a kero-
sene heater, or near an open
flame), otherwise it could catch
fire.


When transporting the motorcycle
in another vehicle, make sure that
it is kept upright and that the fuel
cock is turned to “ON” or “RES” (for
vacuum type) / “OFF” (for manual
type). If it should lean over, gaso-
line may leak out of the carburetor
or fuel tank.


If you should swallow any gaso-
line, inhale a lot of gasoline vapor,
or allow gasoline to get into youreyes, see your doctor immediately.
If any gasoline spills on your skin
or clothing, immediately wash the
affected area with soap and water
and change your clothes.
U3D9E0E0.book Page 4 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

INSTRUMENT AND CONTROL FUNCTIONS
3-1
3
EAU10460
Main switch/steering lock The main switch/steering lock controls
the ignition and lighting systems, and is
used to lock the steering. The various
positions are described below.
EAU33590
ON
All electrical circuits are supplied with
power; the meter lighting, taillight and
auxiliary light come on, and the engine
can be started. The key cannot be re-
moved.NOTE:The headlight comes on automatically
when the engine is started and stays on
until the key is turned to “OFF”, even ifthe engine stalls.
EAU10660
OFF
All electrical systems are off. The key
can be removed.
EAU10680
LOCK
The steering is locked, and all electrical
systems are off. The key can be re-
moved.
To lock the steering1. Turn the handlebars all the way to
the left.
2. Push the key in from the “OFF” po-
sition, and then turn it to “LOCK”
while still pushing it.
3. Remove the key.To unlock the steering
Push the key in, and then turn it to
“OFF” while still pushing it.
WARNING
EWA10060
Never turn the key to “OFF” or
“LOCK” while the vehicle is moving,
otherwise the electrical systems will
be switched off, which may result in
loss of control or an accident. Make
sure that the vehicle is stopped be-
fore turning the key to “OFF” or“LOCK”.
1. Push.
2. Turn.
1. Push.
2. Turn.
U3D9E0E0.book Page 1 Saturday, December 25, 2004 11:35 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-2
3
EAU10980
Indicator lights
EAU11030
Turn signal indicator lights “” and
“”
The corresponding indicator light flash-
es when the turn signal switch is
pushed to the left or right.
EAU11060
Neutral indicator light “”
This indicator light comes on when the
transmission is in the neutral position.
EAU11080
High beam indicator light “”
This indicator light comes on when the
high beam of the headlight is switched
on.
EAU11630
Speedometer unit The speedometer unit is equipped with
a speedometer, an odometer and a
tripmeter. The speedometer shows
riding speed. The odometer shows the
total distance traveled. The tripmeter
shows the distance traveled since it
was last set to zero with the reset knob.
The tripmeter can be used to estimate
the distance that can be traveled with a
full tank of fuel. This information will en-
able you to plan future fuel stops.
1. Left turn signal indicator light “”
2. Neutral indicator light “”
3. High beam indicator light “”
4. Right turn signal indicator light “”
1. Speedometer
2. Odometer
3. Tripmeter
4. Tripmeter reset knob
U3D9E0E0.book Page 2 Saturday, December 25, 2004 11:35 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-4
3
EAU12400
Dimmer switch “/”
Set this switch to “” for the high
beam and to “” for the low beam.
EAU12460
Turn signal switch “/”
To signal a right-hand turn, push this
switch to “”. To signal a left-hand
turn, push this switch to “”. When re-
leased, the switch returns to the center
position. To cancel the turn signal
lights, push the switch in after it has re-
turned to the center position.
EAU12500
Horn switch “”
Press this switch to sound the horn.
EAU12710
Start switch “”
Push this switch to crank the engine
with the starter.CAUTION:
ECA10050
See page 5-1 for starting instruc-tions prior to starting the engine.
EAU31640
Clutch lever The clutch lever is located at the left
handlebar grip. To disengage the
clutch, pull the lever toward the handle-
bar grip. To engage the clutch, release
the lever. The lever should be pulled
rapidly and released slowly for smooth
clutch operation.
The clutch lever is equipped with a
clutch switch, which is part of the start-
ing circuit cut-off system. (See page
3-10.)
EAU12870
Shift pedal The shift pedal is located on the left
side of the engine and is used in com-
bination with the clutch lever when
shifting the gears of the 5-speed con-
stant-mesh transmission equipped on
this motorcycle.
1. Clutch lever
1. Shift pedal
U3D9E0E0.book Page 4 Saturday, December 25, 2004 11:35 AM