wheel YAMAHA YBR125 2014 User Guide
[x] Cancel search | Manufacturer: YAMAHA, Model Year: 2014, Model line: YBR125, Model: YAMAHA YBR125 2014Pages: 84, PDF Size: 1.82 MB
Page 60 of 84
PERIODIC MAINTENANCE AND ADJUSTMENT
6-27
6
NOTICE
ECA10591
If any damage is foun d or the front
fork does not operate smoothly,
have a Yamaha d ealer check or re-
pair it.
EAU45512
Checkin g the steerin gWorn or loose steering bearings may
cause danger. Therefore, the operation
of the steering must be checked as fol-
lows at the intervals specified in the
periodic maintenance and lubrication
chart.
1. Place the vehicle on the center- stand. WARNING! To avoi d inju-
ry, securely support the vehicle
so there is no dan ger of it fallin g
over.
[EWA10752]
2. Hold the lower ends of the front fork legs and try to move them for-
ward and backward. If any free
play can be felt, have a Yamaha
dealer check or repair the steer-
ing.
EAU23292
Checkin g the wheel bearin gsThe 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.
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-33
64. Insert a new bulb into the socket.
5. Install the socket (together with
the bulb) by pushing it in.
6. Install the headlight unit.
EAU24361
Front wheel
EAU56302
To remove the front wheel
WARNING
EWA10822
To avoi d injury, securely support the
vehicle so there is no dan ger of it
fallin g over.1. Remove the rubber cap, and then
loosen the wheel axle nut.
2. Place the motorcycle on the cen- terstand. 3. Disconnect the speedometer ca-
ble from the front wheel.
4. Remove the wheel axle nut and the washer.
5. Pull the wheel axle out, and then remove the wheel. NOTICE: Do
not apply the b rake after the
wheel an d b rake disc have b een
remove d, otherwise the brake
pa ds will be forced shut.
[ECA11073]
1. Auxiliary light bulb
1
1. Rubber cap
2. Axle nut
3. Washer
1. Speedometer cable
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-34
6
To install the front wheel
1. Install the speedometer gear unit into the wheel hub so that the pro-
jections mesh with the slots.
2. Lift the wheel up between the fork legs.
TIPMake sure that there is enough space
between the brake pads before insert-
ing the brake disc and that the slot in
the speedometer gear unit fits over the
retainer on the fork leg.3. Insert the wheel axle, and then in-stall the washer and axle nut.
4. Take the motorcycle off the cen- terstand so that the front wheel is
on the ground, and then put the
sidestand down.
5. Tighten the axle nut to the speci- fied torque, and then install the
rubber cap so that it fits over the
washer. 6. While applying the front brake,
push down hard on the handle-
bars several times to check if the
front fork compresses and re-
bounds smoothly.
7. Connect the speedometer cable.
1. Wheel axle
1. Speedometer gear unit
1
1. Speedometer gear unit retainer
Ti ghtenin g torque:
Axle nut:
59 Nm (5.9 m·kgf, 43 ft·lbf)
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-35
6
EAU25081
Rear wheel
EAU56650
To remove the rear wheel
WARNING
EWA10822
To avoid injury, securely support the
vehicle so there is no dan ger of it
fallin g over.1. Loosen the axle nut and the brake
torque rod nut at the brake shoe
plate.
2. Disconnect the brake torque rod from the brake shoe plate by re-
moving the brake torque rod cot-
ter pin, the nut, and the bolt. 3. Place the motorcycle on the cen-
terstand.
4. Remove the brake pedal free play adjusting nut, and then discon-
nect the brake rod from the brake
camshaft lever. 5. Loosen the drive chain puller lock-
nut and the drive chain slack ad-
justing bolt on both ends of the
swingarm.
1. Axle nut
2. Brake torque rod
3. Brake torque rod nut and bolt
4. Brake torque rod cotter pin
13
2
4
1. Brake pedal free play adjusting nut
2. Brake rod
3. Brake camshaft lever
1. Wheel axle
2. Drive chain puller locknut
3. Drive chain slack adjusting bolt
3
1
2
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-36
6
6. Remove the axle nut, and then pull
the wheel axle out.
7. Push the wheel forward, and then remove the drive chain from the
rear sprocket.
TIPThe drive chain does not need to be
disassembled in order to remove and
install the wheel.8. Remove the wheel.
To install the rear wheel 1. Install the wheel by inserting the wheel axle from the left-hand side.
2. Install the drive chain onto the rear sprocket.
3. Install the axle nut.
4. Install the brake rod onto the brake camshaft lever, and then in-
stall the brake pedal free play ad-
justing nut onto the brake rod.
5. Connect the brake torque rod to the brake shoe plate by installing
the bolt and nut.
6. Adjust the drive chain slack. (See page 6-21.) 7. Take the motorcycle off the cen-
terstand so that the rear wheel is
on the ground, and then put the
sidestand down.
8. Tighten the brake torque rod nut and axle nut to the specified
torques.
9. Insert a new cotter pin.
10. Adjust the brake pedal free play. (See page 6-18.)
WARNING
EWA10661
After a djustin g the brake ped al free
play, check the operation of the
b rake li ght.
EAU25852
Trou bleshootin gAlthough Yamaha motorcycles receive
a thorough inspection before shipment
from the factory, trouble may occur
during operation. Any problem in the
fuel, compression, or ignition systems,
for example, can cause poor starting
and loss of power.
The following troubleshooting chart
represents a quick and easy procedure
for checking these vital systems your-
self. However, should your motorcycle
require any repair, take it to a Yamaha
dealer, whose skilled technicians have
the necessary tools, experience, and
know-how to service the motorcycle
properly.
Use only genuine Yamaha replace-
ment parts. Imitation parts may look
like Yamaha parts, but they are often
inferior, have a shorter service life and
can lead to expensive repair bills.
WARNING
EWA15142
When checkin g the fuel system, d o
not smoke, an d make sure there are
no open flames or sparks in the ar-
ea, inclu din g pilot li ghts from water
Ti ghtenin g torques:
Brake torque rod nut: 19 Nm (1.9 m·kgf, 14 ft·lbf)
Axle nut:
80 Nm (8.0 m·kgf, 58 ft·lbf)
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Page 72 of 84
MOTORCYCLE CARE AND STORAGE
7-1
7
EAU37834
Matte color cautionNOTICE
ECA15193
Some models are equipped with
matte colore d finishe d parts. Be
sure to consult a Yamaha d ealer for
a d vice on what prod ucts to use be-
fore cleanin g the vehicle. Usin g a
b rush, harsh chemical prod ucts or
cleanin g compoun ds when cleanin g
these parts will scratch or damag e
their surface. Wax also shoul d not
b e applied to any matte colore d fin-
ishe d parts.
EAU57020
CareWhile the open design of a motorcycle
reveals the attractiveness of the tech-
nology, it also makes it more vulnera-
ble. Rust and corrosion can develop
even if high-quality components are
used. A rusty exhaust pipe may go un-
noticed on a car, however, it detracts
from the overall appearance of a mo-
torcycle. Frequent and proper care
does not only comply with the terms of
the warranty, but it will also keep your
motorcycle looking good, extend its
life and optimize its performance.
Before cleanin g
1. Cover the muffler outlet with a plastic bag after the engine has
cooled down.
2. Make sure that all caps and cov- ers as well as all electrical cou-
plers and connectors, including
the spark plug cap, are tightly in-
stalled.
3. Remove extremely stubborn dirt, like oil burnt onto the crankcase,
with a degreasing agent and a
brush, but never apply such prod- ucts onto seals, gaskets, sprock-
ets, the drive chain and wheel
axles. Always rinse the dirt and
degreaser off with water.
Cleanin g
NOTICE
ECA10773
Avoi d usin g stron g aci dic wheel
cleaners, especially on spoke d
wheels. If such pro ducts are
use d on har d-to-remove dirt, do
not leave the cleaner on the af-
fected area any lon ger than in-
structe d. Also, thorou ghly rinse
the area off with water, imme di-
ately dry it, an d then apply a cor-
rosion protection spray.
Improper cleanin g can d amage
plastic parts (such as cowlin gs,
panels, win dshiel ds, hea dlig ht
lenses, meter lenses, etc.) an d
the mufflers. Use only a soft,
clean cloth or spon ge with wa-
ter to clean plastic. However, if
the plastic parts cannot b e thor-
ou ghly cleaned with water, di-
lute d mil d d eter gent with water
may be used . Be sure to rinse
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Page 73 of 84
MOTORCYCLE CARE AND STORAGE7-2
7
off any
deter gent resi due usin g
plenty of water, as it is harmful
to plastic parts.
Do not use any harsh chemical
prod ucts on plastic parts. Be
sure to avoi d usin g cloths or
spon ges which have b een in
contact with stron g or a brasive
cleanin g prod ucts, solvent or
thinner, fuel ( gasoline), rust re-
movers or inhi bitors, brake flui d,
antifreeze or electrolyte.
Do not use hi gh-pressure wash-
ers or steam-jet cleaners since
they cause water seepag e and
d eterioration in the followin g ar-
eas: seals (of wheel an d swin g-
arm bearin gs, fork an d b rakes),
electric components (couplers,
connectors, instruments,
switches an d li ghts), breather
hoses an d vents.
For motorcycles equippe d with
a win dshiel d: Do not use stron g
cleaners or har d spon ges as
they will cause dullin g or
sc
ratchin g. Some cleanin g
compoun ds for plastic may
leave scratches on the win d- shiel
d. Test the pro duct on a
small hi dden part of the win d-
shiel d to make sure that it does
not leave any marks. If the win d-
shiel d is scratche d, use a quality
plastic polishin g compoun d af-
ter 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
water and a mild detergent, after
the engine has cooled down.
NOTICE: Do not use warm wa-
ter since it increases the corro-
sive action of the salt.
[ECA10792]
2. Apply a corrosion protection spray on all metal, including chrome-
and nickel-plated, surfaces to pre-
vent corrosion.
Cleaning the windshieldAvoid using any alkaline or strong acid
cleaner, gasoline, brake fluid, or any
other solvent. Clean the windshield
with a cloth or sponge dampened with
a mild detergent, and then wash it off
thoroughly with water. For additional
cleaning, use Yamaha Windshield
Cleaner or another high-quality wind-
shield cleaner. Some cleaning com-
pounds for plastics may leave
scratches on the windshield. Before
using such cleaners, test an area of the
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Page 75 of 84
MOTORCYCLE CARE AND STORAGE7-4
7
EAU43203
StorageShort-term
Always store your motorcycle in a cool,
dry place and, if necessary, protect it
against dust with a porous cover. Be
sure the engine and the exhaust sys-
tem are cool before covering the mo-
torcycle.NOTICE
ECA10811
Storin g the motorcycle in a
poorly ventilate d room or cover-
in g it with a tarp, while it is still
wet, will allow water an d humi d-
ity to seep in an d cause rust.
To prevent corrosion, avoi d
d amp cellars, sta bles ( because
of the presence of ammonia)
an d areas where stron g chemi-
cals are store d.Lon g-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.
3. Perform the following steps to protect the cylinder, piston rings,
etc. from corrosion.a. Remove the spark plug cap and spark plug.
b. Pour a teaspoonful of engine oil into the spark plug bore.
c. Install the spark plug cap onto the spark plug, and then place
the spark plug on the cylinder
head so that the electrodes are
grounded. (This will limit spark-
ing during the next step.)
d. Turn the engine over several times with the starter. (This will
coat the cylinder wall with oil.)
e. Remove the spark plug cap from the spark plug, and then
install the spark plug and the
spark plug cap. WARNING! To
prevent damag e or injury
from sparkin g, make sure to
g roun d the spark plu g elec-
tro des while turnin g the en-
g ine over.
[EWA10952]
4. Lubricate all control cables and
the pivoting points of all levers and
pedals as well as of the side-
stand/centerstand.
5. Check and, if necessary, correct the tire air pressure, and then lift
the motorcycle so that both of its
wheels are off the ground. Alterna-
tively, turn the wheels a little every
month in order to prevent the tires
from becoming degraded in one
spot.
6. Cover the muffler outlet with a plastic bag to prevent moisture
from entering it.
7. Remove the battery and fully char- ge it. Store it in a cool, dry place
and charge it once a month. Do
not store the battery in an exces-
sively cold or warm place [less
than 0 °C (30 °F) or more than 30
°C (90 °F)]. For more information
on storing the battery, see page
6-28.TIPMake any necessary repairs before
storing the motorcycle.
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Page 76 of 84
SPECIFICATIONS
8-1
8
Dimensions:Overall length:1985 mm (78.1 in)
Overall width:
745 mm (29.3 in)
Overall height: 1100 mm (43.3 in)
Seat height: 780 mm (30.7 in)
Wheelbase:
1290 mm (50.8 in)
Ground clearance: 160 mm (6.30 in)
Minimum turning radius: 2080 mm (81.9 in)Wei ght:Curb weight:
126 kg (278 lb)Engine:Engine type:
Air cooled 4-stroke, SOHC
Cylinder arrangement: Single cylinder
Displacement: 124 cm³
Bore × stroke:
54.0 × 54.0 mm (2.13 × 2.13 in)
Compression ratio: 10.00 : 1
Starting system: Electric starter and kickstarter
Lubrication system:
Wet sump
Engine oil:Recommended brand:
YAMALUBE
Type:
SAE 10W-30, 10W-40, 10W-50, 15W-40,
20W-40 or 20W-50
Recommended engine oil grade: API service SG type or higher, JASO
standard MA
Engine oil quantity:
Periodic oil change: 1.00 L (1.06 US qt, 0.88 Imp.qt)Air filter:Air filter element:Dry elementFuel:Recommended fuel:
Regular unleaded gasoline (Gasohol (E10)
acceptable)
Fuel tank capacity:
13.0 L (3.43 US gal, 2.86 Imp.gal)
Fuel reserve amount: 3.4 L (0.90 US gal, 0.75 Imp.gal)
Fuel injection:Throttle body:ID mark: 51D1 00Spark plu g(s):Manufacturer/model:
NGK/CR6HSA
Spark plug gap: 0.6–0.7 mm (0.024–0.028 in)Clutch:Clutch type:
Wet, multiple-discTransmission:Primary reduction ratio:3.400 (68/20)
Final drive:
Chain
Secondary reduction ratio: 3.214 (45/14)
Transmission type: Constant mesh 5-speed
Operation:
Left foot operation
Gear ratio: 1st:
2.643 (37/14)
2nd: 1.778 (32/18)
3rd: 1.316 (25/19)
4th:
1.045 (23/22)
5th: 0.875 (21/24)
–20 –10 0 1020 30 40 50 C
10 30 50 70 90 110
0 130 F
SAE 10W-30
SAE 15W-40SAE 20W-40SAE 20W-50
SAE 10W-40SAE 10W-50
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Page 77 of 84
SPECIFICATIONS
8-2
8
Chassis:Frame type:Diamond
Caster angle:
26.33 °
Trail: 92 mm (3.6 in)Front tire:Type:
Tubeless
Size: 2.75-18 42P
Manufacturer/model: CHENG SHIN/C-910Rear tire:Type:Tubeless
Size: 90/90-18 57P
Manufacturer/model:
CHENG SHIN/C-905Loa din g:Maximum load:
194 kg (428 lb)
(Total weight of rider, passenger, cargo
and accessories)Tire air pressure (measure d on col d
tires):Loading condition:
0–90 kg (0–198 lb)
Front:175 kPa (1.75 kgf/cm², 25 psi)
Rear: 200 kPa (2.00 kgf/cm², 29 psi) Loading condition:
90–194 kg (198–428 lb)
Front:175 kPa (1.75 kgf/cm², 25 psi)
Rear:
280 kPa (2.80 kgf/cm², 41 psi)
Front wheel:Wheel type:Cast wheel
Rim size:
J18M/C x MT1.85Rear wheel:Wheel type:Cast wheel
Rim size:
J18M/C x MT1.85Front brake:Type:
Single disc brake
Operation:
Right hand operation
Specified brake fluid: DOT 3 or 4Rear brake:Type:
Drum brake
Operation: Right foot operationFront suspension:Type:
Telescopic fork
Spring/shock absorber type: Coil spring/oil damper Wheel travel:
120.0 mm (4.72 in)
Rear suspension:Type:
Swingarm
Spring/shock absorber type: Coil spring/oil damper
Wheel travel: 105.0 mm (4.13 in)Electrical system:Ignition system:TCI
Charging system: AC magnetoBattery:Model:YTX7L-BS
Voltage, capacity: 12 V, 6.0 AhHea dlig ht:Bulb type:
Halogen bulbBul b volta ge, watta ge × quantity:Headlight:
12 V, 35.0 W/35.0 W × 1
Tail/brake light: 12 V, 5.0 W/21.0 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
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