2010 YAMAHA WR 125R brake fluid

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
2-3
2
EAU32230
Right viewWR125R1. Rear brake fluid reservoir (page 6-20)
2. Idle adjusting screw (page 6-14)
3. Front brake fluid reservoir (page 6-20)
4. Fuse box (page 6-29)
5. Battery (page 6-27)
6. Engine oil filter element (page 6-9)
7. Dipstick (page 6-9)8. Brake pedal (page 3-7)
9. Owner’s tool kit (page 6-1)
10.Rear brake pads (page 6-20)U22BE1E0.book Page 3 Wednesday, September 16, 2009 1:46 PM

DESCRIPTION
2-4
2 WR125X
1. Rear brake fluid reservoir (page 6-20)
2. Idle adjusting screw (page 6-14)
3. Front brake fluid reservoir (page 6-20)
4. Fuse box (page 6-29)
5. Battery (page 6-27)
6. Engine oil filter element (page 6-9)
7. Dipstick (page 6-9)
8. Brake pedal (page 3-7)
9. Owner’s tool kit (page 6-1)10.Rear brake pads (page 6-20)
U22BE1E0.book Page 4 Wednesday, September 16, 2009 1:46 PM

FOR YOUR SAFETY – PRE-OPERATION CHECKS
4-1
4
EAU15596
Inspect your vehicle each time you use it to make sure the vehicle is in safe operating condition. Always follow the inspection
and maintenance procedures and schedules described in the Owner’s Manual.
WARNING
EWA11151
Failure to inspect or maintain the vehicle properly increases the possibility of an accident or equipment damage.
Do not operate the vehicle if you find any problem. If a problem cannot be corrected by the procedures provided in
this manual, have the vehicle inspected by a Yamaha dealer.Before using this vehicle, check the following points:
ITEM CHECKS PAGE
FuelCheck fuel level in fuel tank.
Refuel if necessary.
Check fuel line for leakage.3-8
Engine oilCheck oil level in engine.
If necessary, add recommended oil to specified level.
Check vehicle for oil leakage.6-9
CoolantCheck coolant level in reservoir.
If necessary, add recommended coolant to specified level.
Check cooling system for leakage.6-12
Front brakeCheck operation.
If soft or spongy, have Yamaha dealer bleed hydraulic system.
Check brake pads for wear.
Replace if necessary.
Check fluid level in reservoir.
If necessary, add recommended brake fluid to specified level.
Check hydraulic system for leakage.6-20, 6-20
U22BE1E0.book Page 1 Wednesday, September 16, 2009 1:46 PM

FOR YOUR SAFETY – PRE-OPERATION CHECKS
4-2
4
Rear brakeCheck operation.
If soft or spongy, have Yamaha dealer bleed hydraulic system.
Check brake pads for wear.
Replace if necessary.
Check fluid level in reservoir.
If necessary, add recommended brake fluid to specified level.
Check hydraulic system for leakage.6-20, 6-20
ClutchCheck operation.
Lubricate cable if necessary.
Check lever free play.
Adjust if necessary.6-18
Throttle gripMake sure that operation is smooth.
Check cable free play.
If necessary, have Yamaha dealer adjust cable free play and lubricate cable and
grip housing.6-14, 6-24
Control cablesMake sure that operation is smooth.
Lubricate if necessary.6-24
Drive chainCheck chain slack.
Adjust if necessary.
Check chain condition.
Lubricate if necessary.6-22, 6-23
Wheels and tiresCheck for damage.
Check tire condition and tread depth.
Check air pressure.
Correct if necessary.6-15, 6-17
Brake pedalMake sure that operation is smooth.
Lubricate pedal pivoting point if necessary.6-25
Brake and clutch leversMake sure that operation is smooth.
Lubricate lever pivoting points if necessary.6-24
SidestandMake sure that operation is smooth.
Lubricate pivot if necessary.6-25 ITEM CHECKS PAGE
U22BE1E0.book Page 2 Wednesday, September 16, 2009 1:46 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-3
6
EAU17717
General maintenance and lubrication chart 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)
1*Air filter elementClean.√√
Replace.√√
2*BatteryCheck electrolyte level and specif-
ic gravity.
Make sure that the breather hose
is properly routed.√√√√√
3ClutchCheck operation.
Adjust.√√√√√
4*Front brakeCheck operation, fluid level and
vehicle for fluid leakage.√√√√√√
Replace brake pads. Whenever worn to the limit
5*Rear brakeCheck operation, fluid level and
vehicle for fluid leakage.√√√√√√
Replace brake pads. Whenever worn to the limit
6*Brake hosesCheck for cracks or damage.√√√√√
Replace. Every 4 years
7*WheelsCheck runout, spoke tightness
and for damage.
Tighten spokes if necessary.√√√√
8*TiresCheck tread depth and for dam-
age.
Replace if necessary.
Check air pressure.
Correct if necessary.√√√√√
U22BE1E0.book Page 3 Wednesday, September 16, 2009 1:46 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-6
6
EAUM2070
TIP

The air filter needs more frequent service if you are riding in unusually wet or dusty areas.


Hydraulic brake service
Regularly check and, if necessary, correct the brake fluid level.
Every two years change the brake fluid.
Replace the brake hoses every four years and if cracked or damaged.
28*Lights, signals and
switchesCheck operation.
Adjust headlight beam.√√√√√√ 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 6 Wednesday, September 16, 2009 1:46 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-20
6
EAU22321
Checking the front and rear
brake pads Front brake
Rear brakeThe front and rear brake pads must be
checked for wear at the intervals spec-
ified in the periodic maintenance and
lubrication chart. Each brake pad is
provided with a wear indicator groove,
which allows you to check the brake
pad wear without having to disassem-
ble the brake. To check the brake pad
wear, check the wear indicator
grooves. If a brake pad has worn to the
point that the wear indicator groove has
almost disappeared, have a Yamaha
dealer replace the brake pads as a set.
EAU22580
Checking the brake fluid level Front brake
Rear brake
Insufficient brake fluid may allow air to
enter the brake system, possibly caus-
ing it to become ineffective.
1. Wear indicator groove
1. Wear indicator groove
1. Minimum level mark
1. Minimum level mark
U22BE1E0.book Page 20 Wednesday, September 16, 2009 1:46 PM