2009 YAMAHA YZF-R125 brake

PERIODIC MAINTENANCE AND MINOR REPAIR
6-33
6 a jack either under each side of the
frame in front of the rear wheel or under
each side of the swingarm.
EAU24360
Front wheel
EAUM2420
To remove the front wheel
WARNING
EWA10820


It is advisable to have a Yamaha
dealer service the wheel.


Securely support the motor-
cycle so that there is no dangerof it falling over.
1. Loosen the front wheel axle pinch
bolt, then the wheel axle and the
brake caliper bolts.
2. Lift the front wheel off the ground
according to the procedure on
page 6-32.3. Remove the speed sensor lead
holder by removing the bolt.
4. Remove the brake hose holder by
removing the bolt.
5. Remove the brake caliper by re-
moving the bolts.
1. Front wheel axle pinch bolt
1. Speed sensor cable holder
U5D7E0E0.book Page 33 Tuesday, December 18, 2007 10:13 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-34
66. Pull the wheel axle out, remove the
speed sensor by pulling it out, and
then remove the wheel.
CAUTION:
ECA11050
Do not apply the brake after the
brake calipers have been removed,
otherwise the brake pads will beforced shut.
EAUM2430
To install the front wheel
1. Lift the wheel up between the fork
legs.
2. Install the speed sensor at the
wheel hub.NOTE:Make sure that the projections on the
speed sensor rotor are aligned with the
notches in the wheel hub and that the
slot in the speed sensor fits over the re-tainer on the fork leg.
3. Insert the wheel axle.
4. Lower the front wheel so that it is
on the ground.
5. Push down hard on the handlebar
several times to check for proper
fork operation.
6. Install the brake caliper by install-
ing the bolts.
NOTE:Make sure that there is enough space
between the brake pads before install-
ing the brake caliper onto the brakedisc.
7. Install the brake hose holder by in-
stalling the bolt.
8. Install the speed sensor lead hold-
er by installing the bolt.
9. Tighten the wheel axle, front wheel
axle pinch bolt and brake caliper
bolts to the specified torques.
1. Brake hose holder
2. Brake caliper bolt
3. Brake caliper
4. Axle bolt
1. Speedometer gear unit
Tightening torques:
Wheel axle:
59 Nm (5.9 m·kgf, 43 ft·lbf)
Front wheel axle pinch bolt:
14 Nm (1.4 m·kgf, 10 ft·lbf)
Brake caliper bolt:
30 Nm (3.0 m·kgf, 22 ft·lbf)
U5D7E0E0.book Page 34 Tuesday, December 18, 2007 10:13 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-35
6
EAU25080
Rear wheel
EAU25311
To remove the rear wheel
WARNING
EWA10820


It is advisable to have a Yamaha
dealer service the wheel.


Securely support the motor-
cycle so that there is no dangerof it falling over.
1. Loosen the axle nut.
2. Lift the rear wheel off the ground
according to the procedure on
page 6-32.3. Remove the axle nut.
4. Loosen the locknut on each side of
the swingarm.
5. Turn the drive chain slack adjust-
ing bolts fully in direction (a) and
push the wheel forward.
6. Remove the drive chain from the
rear sprocket.
NOTE:

If the drive chain is difficult to re-
move, remove the wheel axle first,
and then lift the wheel upward
enough to remove the drive chain
from the rear sprocket.


The drive chain cannot be disas-sembled.7. While supporting the brake caliper
bracket, pull the wheel axle out,
and then remove the wheel.
CAUTION:
ECA11070
Do not apply the brake after the
wheel has been removed together
with the brake disc, otherwise thebrake pads will be forced shut.
EAU39411
To install the rear wheel
1. Install the wheel and the brake cal-
iper bracket by inserting the wheel
axle from the left-hand side.NOTE:

Make sure that the slot in the brake
caliper bracket is fit over the retain-
er on the swingarm.


Make sure that there is enough
space between the brake pads be-fore installing the wheel.
1. Axle nut
2. Drive chain slack adjusting bolt
3. Locknut
4. Brake caliper
U5D7E0E0.book Page 35 Tuesday, December 18, 2007 10:13 AM

MOTORCYCLE CARE AND STORAGE
7-2
7contact with strong or abrasive
cleaning products, solvent or
thinner, fuel (gasoline), rust re-
movers or inhibitors, brake flu-
id, antifreeze or electrolyte.


Do not use high-pressure wash-
ers or steam-jet cleaners since
they cause water seepage and
deterioration in the following ar-
eas: seals (of wheel and swing-
arm bearings, fork and brakes),
electric components (couplers,
connectors, instruments,
switches and lights), breather
hoses and vents.


For motorcycles equipped with
a windshield: Do not use strong
cleaners or hard sponges as
they will cause dulling or
scratching. Some cleaning com-
pounds for plastic may leave
scratches on the windshield.
Test the product on a small hid-
den part of the windshield to
make sure that it does not leave
any marks. If the windshield isscratched, use a quality plastic
polishing compound after
washing.
After normal use
Remove 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. Use the
special sponge, which is located under
the tool kit, to clean the muffler and to
remove any discoloration from it.
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.
NOTE:Salt sprayed on roads in the winter mayremain well into spring.
1. Clean the motorcycle with cold wa-
ter and a mild detergent, after the
engine has cooled down.CAUTION:
ECA10790
Do not use warm water since it in-
creases the corrosive action of thesalt.
2. After drying the motorcycle, apply
a corrosion protection spray on all
metal, including chrome- and nick-
el-plated, surfaces to prevent cor-
rosion.
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-
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MOTORCYCLE CARE AND STORAGE
7-3
7 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
EWA11130


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.
CAUTION:
ECA10800


Apply spray oil and wax spar-
ingly and make sure to wipe off
any excess.


Never apply oil or wax to any
rubber and plastic parts, but
treat them with a suitable care
product.


Avoid using abrasive polishing
compounds as they will wearaway the paint.
NOTE:Consult a Yamaha dealer for advice onwhat products to use.
EAU43200
Storage Short-term
Always store your motorcycle in a cool,
dry place and, if necessary, protect it
against dust with a porous cover.CAUTION:
ECA10810


Storing the motorcycle in a
poorly ventilated room or cover-
ing it with a tarp, while it is still
wet, will allow water and humid-
ity to seep in and cause rust.


To prevent corrosion, avoid
damp cellars, stables (because
of the presence of ammonia)
and areas where strong chemi-cals are stored.
Long-term
Before storing your motorcycle for sev-
eral months:
1. Follow all the instructions in the
“Care” section of this chapter.
2. Fill up the fuel tank and add fuel
stabilizer (if available) to prevent
the fuel tank from rusting and the
fuel from deteriorating.
U5D7E0E0.book Page 3 Tuesday, December 18, 2007 10:13 AM

SPECIFICATIONS
8-2
8
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:
Semi double cradle
Caster angle:
24.20 °
Trail:
86.1 mm (3.39 in)Front tire:Type:
Tubeless
Size:
100/80-17 M/C 52H
Manufacturer/model:
PIRELLI/SPORT DEMON
Manufacturer/model:
MICHELIN/PILOT SPORTYRear tire:Type:
Tubeless
Size:
130/70-17 M/C 62HManufacturer/model:
PIRELLI/SPORT DEMON
Manufacturer/model:
MICHELIN/PILOT SPORTY
Loading: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:
175 kPa (25 psi) (1.75 kgf/cm²)
Rear:
200 kPa (29 psi) (2.00 kgf/cm²)
Loading condition:
90–185 kg (198–408 lb)
Front:
175 kPa (25 psi) (1.75 kgf/cm²)
Rear:
225 kPa (33 psi) (2.25 kgf/cm²)Front wheel:Wheel type:
Cast wheel
Rim size:
17xMT2.75Rear wheel:Wheel type:
Cast wheel
Rim size:
17 x MT3.75
Front 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:
130.0 mm (5.12 in)Rear suspension:Type:
Swingarm (monocross)
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
125.0 mm (4.92 in)Electrical system:Ignition system:
TCI (digital)
Charging system:
AC magneto
U5D7E0E0.book Page 2 Tuesday, December 18, 2007 10:13 AM

SPECIFICATIONS
8-3
8
Battery:Model:
12N5.5-3B / YUASA
Voltage, capacity:
12 V, 5.5 AhHeadlight:Bulb type:
Halogen bulbBulb voltage, wattage × quantity:Headlight:
12 V, 55.0 W × 2
Tail/brake light:
LEDS x 8
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 × 2
Meter 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:
LEDFuses:Main fuse:
20.0 AHeadlight fuse:
15.0 A
Signaling system fuse:
7.5 A
Ignition fuse:
7.5 A
Radiator fan fuse:
5.0 A
U5D7E0E0.book Page 3 Tuesday, December 18, 2007 10:13 AM

INDEXAAir filter element and check hose,
replacing and cleaning........................ 6-14
Anti-theft device housing......................... 3-9
Auxiliary light bulb, replacing ................ 6-32BBattery................................................... 6-29
Brake and clutch levers, checking and
lubricating ........................................... 6-26
Brake and shift pedals, checking and
lubricating ........................................... 6-25
Brake fluid, changing ............................ 6-22
Brake fluid level, checking .................... 6-21
Brake lever .............................................. 3-6
Brake pedal ............................................. 3-6
Brake pedal free play, adjusting............ 6-20CCables, checking and lubricating .......... 6-24
Care ........................................................ 7-1
Catalytic converters ................................ 3-8
Clutch lever ............................................. 3-5
Clutch lever free play, adjusting ............ 6-19
Coolant.................................................. 6-12
Coolant temperature warning light .......... 3-2
Cowlings and panel, removing and
installing................................................ 6-6DDimmer switch ........................................ 3-5
Drive chain, cleaning and lubricating .... 6-24
Drive chain slack ................................... 6-22EEngine break-in ....................................... 5-3
Engine idling speed............................... 6-14
Engine oil and oil filter element ............... 6-9Engine stop switch.................................. 3-5
Engine trouble warning light ................... 3-2
FFront and rear brake pads, checking .... 6-20
Front brake lever free play, checking ... 6-20
Front fork, checking .............................. 6-27
Fuel......................................................... 3-7
Fuel consumption, tips for reducing........ 5-3
Fuel tank cap .......................................... 3-7
Fuses, replacing ................................... 6-30HHandlebar switches ................................ 3-4
Headlight bulb, replacing ...................... 6-31
High beam indicator light ........................ 3-2
Horn switch ............................................. 3-5IIdentification numbers ............................ 9-1
Ignition circuit cut-off system ................ 3-10
Indicator and warning lights .................... 3-2KKey identification number ....................... 9-1LLicense plate light bulb, replacing ........ 6-32MMain switch/steering lock........................ 3-1
Matte color, caution ................................ 7-1
Model label ............................................. 9-2
Multi-function display .............................. 3-3NNeutral indicator light .............................. 3-2PParking ................................................... 5-4
Part locations .......................................... 2-1
Pass switch............................................. 3-5Periodic maintenance and lubrication
chart ...................................................... 6-2
Pre-operation check list........................... 4-2
RRider seat ................................................ 3-9SSafety information ................................... 1-1
Shifting .................................................... 5-2
Shift pedal ............................................... 3-6
Sidestand .............................................. 3-10
Sidestand, checking and lubricating...... 6-26
Spark plug, checking ............................... 6-8
Specifications .......................................... 8-1
Starting the engine .................................. 5-1
Start switch.............................................. 3-5
Steering, checking................................. 6-28
Storage.................................................... 7-3
Supporting the motorcycle .................... 6-32
Swingarm pivots, lubricating ................. 6-27TTachometer ............................................. 3-3
Tail/brake light ....................................... 6-31
Throttle cable free play, adjusting ......... 6-15
Throttle grip and cable, checking and
lubricating ........................................... 6-25
Tires ...................................................... 6-16
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..................................... 6-16
U5D7E0E0.book Page 1 Tuesday, December 18, 2007 10:13 AM