ABS YAMAHA WR 125R 2010 Owners Manual

TABLE OF CONTENTSSAFETY INFORMATION ..................1-1
DESCRIPTION ..................................2-1
Left view ..........................................2-1
Right view ........................................2-3
Controls and instruments.................2-5
INSTRUMENT AND CONTROL
FUNCTIONS.......................................3-1
Main switch/steering lock ................3-1
Indicator and warning lights ............3-2
Multi-function display ......................3-3
Handlebar switches ........................3-5
Clutch lever .....................................3-6
Shift pedal .......................................3-6
Brake lever .....................................3-6
Brake pedal ....................................3-7
Fuel tank cap ..................................3-7
Fuel .................................................3-8
Catalytic converters ........................3-9
Seat ..............................................3-10
Adjusting the shock absorber
assembly ...................................3-10
Sidestand ......................................3-11
Ignition circuit cut-off system ........3-12FOR YOUR SAFETY –
PRE-OPERATION CHECKS............. 4-1
OPERATION AND IMPORTANT
RIDING POINTS................................. 5-1
Starting the engine ......................... 5-1
Shifting ........................................... 5-2
Tips for reducing fuel
consumption ............................... 5-3
Engine break-in .............................. 5-3
Parking ........................................... 5-4
PERIODIC MAINTENANCE AND
ADJUSTMENT................................... 6-1
Owner’s tool kit ............................... 6-1
Periodic maintenance chart for the
emission control system ............. 6-2
General maintenance and
lubrication chart .......................... 6-3
Removing and installing panels ..... 6-7
Checking the spark plug ................. 6-8
Engine oil and oil filter element ...... 6-9
Coolant ......................................... 6-12
Replacing the air filter element
and cleaning the check hose .... 6-13
Adjusting the engine idling
speed ........................................ 6-14
Adjusting the throttle cable free
play ........................................... 6-14
Valve clearance ............................ 6-15
Tires ............................................. 6-15Spoke wheels .............................. 6-17
Adjusting the clutch lever free
play ........................................... 6-18
Checking the front brake lever
free play .................................... 6-19
Adjusting the brake pedal free
play ........................................... 6-19
Checking the front and rear
brake pads ................................ 6-20
Checking the 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 clutch levers ............ 6-24
Checking and lubricating the
brake pedal ............................... 6-25
Checking and lubricating the
sidestand .................................. 6-25
Lubricating the swingarm
pivots ........................................ 6-26
Checking the front fork ................. 6-26
Checking the steering .................. 6-27
Checking the wheel bearings ....... 6-27
Battery ......................................... 6-27
Replacing the fuses ..................... 6-29U22BE1E0.book Page 1 Wednesday, September 16, 2009 1:46 PM

DESCRIPTION
2-1
2
EAU32220
Left viewWR125R1. Seat (page 3-10)
2. Coolant level check window (page 6-12)
3. Sidestand (page 3-11)
4. Shock absorber assembly spring preload adjusting ring (page 3-10)
5. Shift pedal (page 3-6)
6. Front brake pads (page 6-20)U22BE1E0.book Page 1 Wednesday, September 16, 2009 1:46 PM

DESCRIPTION
2-2
2 WR125X
1. Seat (page 3-10)
2. Coolant level check window (page 6-12)
3. Sidestand (page 3-11)
4. Shock absorber assembly spring preload adjusting ring (page 3-10)
5. Shift pedal (page 3-6)
6. Front brake pads (page 6-20)
U22BE1E0.book Page 2 Wednesday, September 16, 2009 1:46 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-10
3
EAU13960
Seat To remove the seat
Remove the bolts, and then pull the
seat off.
To install the seat
1. Insert the projections on the front
of the seat into the seat holders as
shown.2. Place the seat in the original posi-
tion, and then tighten the bolts.
TIPMake sure that the seat is properly se-
cured before riding.
EAU14832
Adjusting the shock absorber
assembly This shock absorber assembly is
equipped with a spring preload adjust-
ing ring.NOTICE
ECA10101
To avoid damaging the mechanism,
do not attempt to turn beyond the
maximum or minimum settings.Adjust the spring preload as follows.
To increase the spring preload and
thereby harden the suspension, turn
the adjusting ring in direction (a). To de-
1. Bolt
1. Projection
2. Seat holder
1. Spring preload adjusting nut
2. Position indicator
(b)
(a)
U22BE1E0.book Page 10 Wednesday, September 16, 2009 1:46 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-11
3 crease the spring preload and thereby
soften the suspension, turn the adjust-
ing ring in direction (b).
Align the appropriate notch in the ad-
justing ring with the position indicator
on the shock absorber.
For WR125R only
WARNING
EWA10221
This shock absorber assembly con-
tains highly pressurized nitrogen
gas. Read and understand the fol-
lowing information before handling
the shock absorber assembly.

Do not tamper with or attempt to
open the cylinder assembly.


Do not subject the shock ab-
sorber assembly to an open
flame or other high heat source.This may cause the unit to ex-
plode due to excessive gas
pressure.


Do not deform or damage the
cylinder in any way. Cylinder
damage will result in poor
damping performance.


Do not dispose of a damaged or
worn-out shock absorber as-
sembly yourself. Take the shock
absorber assembly to a Yamaha
dealer for any service.
EAU15303
Sidestand The sidestand is located on the left side
of the frame. Raise the sidestand or
lower it with your foot while holding the
vehicle upright.TIPThe built-in sidestand switch is part of
the ignition circuit cut-off system, which
cuts the ignition in certain situations.
(See page 3-12 for an explanation of
the ignition circuit cut-off system.)
WARNING
EWA10240
The vehicle must not be ridden with
the sidestand down, or if the side-
stand cannot be properly moved up
(or does not stay up), otherwise the
sidestand could contact the ground
and distract the operator, resulting
in a possible loss of control.
Yamaha’s ignition circuit cut-off
system has been designed to assist
the operator in fulfilling the respon-
sibility of raising the sidestand be-
fore starting off. Therefore, check
this system regularly as described
Spring preload setting:
Minimum (soft):
1
Standard:
3
Maximum (hard):
7
U22BE1E0.book Page 11 Wednesday, September 16, 2009 1:46 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-5
6
19*Front forkCheck operation and for oil leak-
age.√√√√
20*Shock absorber as-
semblyCheck operation and shock ab-
sorber for oil leakage.√√√√
21*Rear suspension re-
lay arm and con-
necting arm
pivoting pointsCheck operation.√√√√
Lubricate with lithium-soap-based
grease.√√
22 Engine oilChange. (See page 3-3.)√When the oil change indicator flashes [2000 km (1200 mi) after
the initial 1000 km (600 mi) and every 3000 km (1800 mi) thereaf-
ter]
Check oil level and vehicle for oil
leakage.Every 3000 km (1800 mi)√
23Engine oil filter ele-
mentReplace.√√√√√
24*Cooling systemCheck coolant level and vehicle
for coolant leakage.√√√√√
Change. Every 3 years
25*Front and rear brake
switchesCheck operation.√√√√√√
26Moving parts and
cablesLubricate.√√√√√
27*Throttle grip hous-
ing and cableCheck operation and free play.
Adjust the throttle cable free play
if necessary.
Lubricate the throttle grip housing
and cable.√√√√√ NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING
ANNUAL
CHECK 1000 km
(600 mi)6000 km
(3500 mi)12000 km
(7000 mi)18000 km
(10500 mi)24000 km
(14000 mi)
U22BE1E0.book Page 5 Wednesday, September 16, 2009 1:46 PM

MOTORCYCLE CARE AND STORAGE
7-2
7Test the product on a small hid-
den part of the windshield to
make sure that it does not leave
any marks. If the windshield is
scratched, use a quality plastic
polishing compound after
washing.
After normal useRemove dirt with warm water, a mild
detergent, and a soft, clean sponge,
and then rinse thoroughly with clean
water. Use a toothbrush or bottlebrush
for hard-to-reach areas. Stubborn dirt
and insects will come off more easily if
the area is covered with a wet cloth for
a few minutes before cleaning.
After riding in the rain, near the sea oron salt-sprayed roadsSince sea salt or salt sprayed on roads
during winter are extremely corrosive in
combination with water, carry out the
following steps after each ride in the
rain, near the sea or on salt-sprayed
roads.
TIPSalt sprayed on roads in the winter may
remain well into spring.1. Clean the motorcycle with cold wa-
ter and a mild detergent, after the
engine has cooled down.
NOTICE: Do not use warm water
since it increases the corrosive
action of the salt.
[ECA10791]
2. Apply a corrosion protection spray
on all metal, including chrome- and
nickel-plated, surfaces to prevent
corrosion.
After cleaning
1. Dry the motorcycle with a chamois
or an absorbing cloth.
2. Immediately dry the drive chain
and lubricate it to prevent it from
rusting.
3. Use a chrome polish to shine
chrome, aluminum and stainless-
steel parts, including the exhaust
system. (Even the thermally in-
duced discoloring of stainless-
steel exhaust systems can be re-
moved through polishing.)4. To prevent corrosion, it is recom-
mended to apply a corrosion pro-
tection spray on all metal,
including chrome- and nickel-plat-
ed, surfaces.
5. Use spray oil as a universal clean-
er to remove any remaining dirt.
6. Touch up minor paint damage
caused by stones, etc.
7. Wax all painted surfaces.
8. Let the motorcycle dry completely
before storing or covering it.
WARNING
EWA11131
Contaminants on the brakes or tires
can cause loss of control.

Make sure that there is no oil or
wax on the brakes or tires.


If necessary, clean the brake
discs and brake linings with a
regular brake disc cleaner or ac-
etone, and wash the tires with
warm water and a mild deter-
gent. Before riding at higher
speeds, test the motorcycle’s
braking performance and cor-
nering behavior.
U22BE1E0.book Page 2 Wednesday, September 16, 2009 1:46 PM

SPECIFICATIONS
8-2
8
Operation:
Left foot operation
Gear ratio:
1st:
34/12 (2.833)
2nd:
30/16 (1.875)
3rd:
30/22 (1.364)
4th:
24/21 (1.143)
5th:
22/23 (0.957)
6th:
21/25 (0.840)Chassis:Frame type:
Double cradle
Caster angle:
WR125R 27.00 °
WR125X 25.50 °
Trail:
WR125R 107.0 mm (4.21 in)
WR125X 78.5 mm (3.09 in)Front tire:Type:
With tube
Size:
WR125R 80/90-21M/C 48P
WR125X 110/70-17M/C 54H
Manufacturer/model:
WR125R PIRELLI / MT90 SCORPION
WR125X PIRELLI / SPORT DEMONManufacturer/model:
WR125R MICHELIN / SIRAC
Rear tire:Type:
With tube
Size:
WR125R 110/80-18 M/C 58P
WR125X 140/70-17 M/C 66H
Manufacturer/model:
WR125R PIRELLI / MT90 SCORPION
WR125X PIRELLI / SPORT DEMON
Manufacturer/model:
WR125R MICHELIN / SIRACLoading:Maximum load:
185 kg (408 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:
180 kPa (1.80 kgf/cm², 26 psi)
Rear:
200 kPa (2.00 kgf/cm², 29 psi)
Loading condition:
90–185 kg (198–408 lb)
Front:
200 kPa (2.00 kgf/cm², 29 psi)
Rear:
225 kPa (2.25 kgf/cm², 33 psi)
Front wheel:Wheel type:
Spoke wheel
Rim size:
WR125R 21x1.6
WR125X 17x3Rear wheel:Wheel type:
Spoke wheel
Rim size:
WR125R 18 x 2.15
WR125X 17 x MT3.5Front brake:Type:
Single disc brake
Operation:
Right hand operation
Recommended fluid:
DOT 4Rear brake:Type:
Single disc brake
Operation:
Right foot operation
Recommended fluid:
DOT 4Front suspension:Type:
Telescopic fork
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
WR125R 240.0 mm (9.45 in)
WR125X 210.0 mm (8.27 in)
U22BE1E0.book Page 2 Wednesday, September 16, 2009 1:46 PM

SPECIFICATIONS
8-3
8
Rear suspension:Type:
Swingarm (monocross)
Spring/shock absorber type:
WR125R Coil spring/gas-oil damper
WR125X Coil spring/oil damper
Wheel travel:
230.0 mm (9.06 in)Electrical system:Ignition system:
TCI (digital)
Charging system:
AC magnetoBattery:Model:
12N5.5-4A
Voltage, capacity:
12 V, 5.5 AhHeadlight:Bulb type:
Halogen bulbBulb voltage, wattage × quantity:Headlight:
12 V, 35 W/35 W × 1
Tail/brake light:
12 V, 21.0 W/5.0 W × 1
Front turn signal light:
12 V, 10.0 W × 2
Rear turn signal light:
12 V, 10.0 W × 2
Auxiliary light:
12 V, 5.0 W × 1
License plate light:
12 V, 5.0 W × 1Meter lighting:
LED
Neutral indicator light:
LED
High beam indicator light:
LED
Turn signal indicator light:
LED
Coolant temperature warning light:
LED
Engine trouble warning light:
LED
Fuses:Main fuse:
20.0 A
Headlight fuse:
15.0 A
Signaling system fuse:
7.5 A
Ignition fuse:
7.5 A
Radiator fan fuse:
5.0 A
U22BE1E0.book Page 3 Wednesday, September 16, 2009 1:46 PM

INDEX
AAir filter element and check hose,
replacing and cleaning ....................... 6-13
Auxiliary light bulb, replacing ................ 6-32BBattery .................................................. 6-27
Brake and clutch levers, checking and
lubricating ........................................... 6-24
Brake fluid, changing ............................ 6-21
Brake fluid level, checking .................... 6-20
Brake lever ............................................. 3-6
Brake pedal ............................................ 3-7
Brake pedal, checking and
lubricating ........................................... 6-25
Brake pedal free play, adjusting ........... 6-19CCables, checking and lubricating .......... 6-24
Care ........................................................ 7-1
Catalytic converters ................................ 3-9
Clutch lever............................................. 3-6
Clutch lever free play, adjusting ........... 6-18
Coolant ................................................. 6-12
Coolant temperature warning light.......... 3-2DDimmer switch ........................................ 3-5
Drive chain, cleaning and lubricating .... 6-23
Drive chain slack .................................. 6-22EEngine break-in ...................................... 5-3
Engine idling speed .............................. 6-14
Engine oil and oil filter element............... 6-9
Engine stop switch.................................. 3-5
Engine trouble warning light ................... 3-3
FFront and rear brake pads, checking .... 6-20
Front brake lever free play, checking .... 6-19
Front fork, checking...............................6-26
Fuel ......................................................... 3-8
Fuel consumption, tips for reducing ........ 5-3
Fuel tank cap........................................... 3-7
Fuses, replacing .................................... 6-29HHandlebar switches ................................. 3-5
Headlight bulb, replacing....................... 6-30
High beam indicator light......................... 3-2
Horn switch ............................................. 3-5IIdentification numbers ............................. 9-1
Ignition circuit cut-off system ................. 3-12
Indicator and warning lights .................... 3-2LLicense plate light bulb, replacing ......... 6-32MMain switch/steering lock ........................ 3-1
Maintenance and lubrication, periodic..... 6-3
Maintenance, emission control system ... 6-2
Model label .............................................. 9-1
Multi-function display...............................3-3NNeutral indicator light .............................. 3-2PPanels, removing and installing .............. 6-7
Parking ....................................................5-4
Part locations .......................................... 2-1
Pass switch ............................................. 3-5SSafety information ...................................1-1Seat ...................................................... 3-10
Shifting .................................................... 5-2
Shift pedal ............................................... 3-6
Shock absorber assembly, adjusting .... 3-10
Sidestand .............................................. 3-11
Sidestand, checking and lubricating ..... 6-25
Spark plug, checking .............................. 6-8
Specifications.......................................... 8-1
Starting the engine.................................. 5-1
Start switch ............................................. 3-5
Steering, checking ................................ 6-27
Storage ................................................... 7-3
Supporting the motorcycle .................... 6-32
Swingarm pivots, lubricating ................. 6-26
TTail/brake light bulb, replacing .............. 6-31
Throttle cable free play, adjusting ......... 6-14
Throttle grip and cable, checking and
lubricating ........................................... 6-24
Tires ...................................................... 6-15
Tool kit .................................................... 6-1
Troubleshooting .................................... 6-36
Troubleshooting charts ......................... 6-37
Turn signal indicator light ........................ 3-2
Turn signal light bulb, replacing ............ 6-31
Turn signal switch ................................... 3-5VValve clearance .................................... 6-15
Vehicle identification number .................. 9-1WWheel bearings, checking..................... 6-27
Wheel (front) ......................................... 6-33
Wheel (rear) .......................................... 6-34
Wheels .................................................. 6-17
U22BE1E0.book Page 1 Wednesday, September 16, 2009 1:46 PM