2011 YAMAHA YBR250 light

PERIODIC MAINTENANCE AND ADJUSTMENT
6-27
6
EAU23626
Replacing the fuses The main fuse and the fuse box, which
contains the fuses for the individual cir-
cuits, are located under the seat. (See
page 3-10.)
If a fuse is blown, replace it as follows.
1. Turn the key to “OFF” and turn off
the electrical circuit in question.
2. Remove the blown fuse, and then
install a new fuse of the specified
amperage. WARNING! Do not
use a fuse of a higher amperage
rating than recommended to
avoid causing extensive dam-
age to the electrical system and
possibly a fire.
[EWA15131]
3. Turn the key to “ON” and turn on
the electrical circuit in question to
check if the device operates.
4. If the fuse immediately blows
again, have a Yamaha dealer
check the electrical system.
1. Main fuse
2. Spare fuse
1. Fuse box cover
2. Headlight fuse
3. Signaling system fuse
4. Fuel injection and ignition fuse
5. Multi-function display backup fuse
6. Spare fuse
Specified fuses:
Main fuse:
20.0 A
Headlight fuse:
10.0 A
Signaling system fuse:
10.0 A
Ignition fuse:
10.0 A
Backup fuse:
10.0 A
U5D1E1E0.book Page 27 Friday, September 5, 2008 1:17 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-28
6
EAU23782
Replacing the headlight bulb This model is equipped with a quartz
bulb headlight. If the headlight bulb
burns out, replace it as follows.NOTICE
ECA10660
Do not touch the glass part of the
headlight bulb to keep it free from
oil, otherwise the transparency of
the glass, the luminosity of the bulb,
and the bulb life will be adversely af-
fected. Thoroughly clean off any dirt
and fingerprints on the headlight
bulb using a cloth moistened with al-cohol or thinner.
1. Remove the headlight unit by re-
moving the screws.2. Disconnect the headlight coupler,
and then remove the bulb cover.
3. Remove the headlight bulb holder
by turning it counterclockwise, and
then remove the burnt-out bulb.4. Place a new headlight bulb into po-
sition, and then secure it with the
bulb holder.
5. Install the headlight bulb cover,
and then connect the coupler.
6. Install the headlight unit by install-
ing the screws.
7. Have a Yamaha dealer adjust the
headlight beam if necessary.1. Do not touch the glass part of the bulb.
1. Screw
1. Headlight coupler
2. Bulb cover
1. Headlight bulb holder
U5D1E1E0.book Page 28 Friday, September 5, 2008 1:17 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-29
6
EAU24283
Replacing a turn signal light
bulb or the tail/brake light bulb 1. Remove the lens by removing the
screws.2. Remove the burnt-out bulb by
pushing it in and turning it counter-
clockwise.
3. Insert a new bulb into the socket,
push it in, and then turn it clock-
wise until it stops.
4. Install the lens by installing the
screws. NOTICE: Do not over-
tighten the screws, otherwise
the lens may break.
[ECA10681]EAU37271
Replacing the auxiliary light
bulb If the auxiliary light bulb burns out, re-
place it as follows.
1. Remove the headlight unit by re-
moving the screws.
2. Remove the socket (together with
the bulb) by pulling it out.
3. Remove the burnt out bulb by pull-
ing it out.
4. Insert a new bulb into the socket.
5. Install the socket (together with the
bulb) by pushing it in.
6. Install the headlight unit by install-
ing the screws.
1. Screw
1. Screw
1. Auxiliary light bulb
1
U5D1E1E0.book Page 29 Friday, September 5, 2008 1:17 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-32
6 2. Lift the rear wheel off the ground
according to the procedure on
page 6-30.
3. Disconnect the brake torque rod
from the brake shoe plate by re-
moving the nut and the bolt.
4. Remove the brake pedal free play
adjusting nut, and then disconnect
the brake rod at the brake cam-
shaft lever.
5. Loosen the locknut and the drive
chain adjusting nut on both ends of
the swingarm.
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 andinstall the wheel.
8. Remove the wheel.
EAUW0170
To install the rear wheel
1. Insert the wheel axle from the left-
hand side, and then install the
drive chain onto the rear sprocket.
2. Install the axle nut.
3. Install the brake rod onto the brake
camshaft lever, and then install the
brake pedal free play adjusting
nut.
4. Connect the brake torque rod to
the brake shoe plate by installing
the bolt and the nut, and then tight-
en the nut to the specified torque.5. Adjust the drive chain slack. (See
page 6-19.)
6. Lower the rear wheel so that it is
on the ground.
7. Tighten the axle nut to the speci-
fied torque.
8. Adjust the brake pedal position
and free play. (See page 6-16.)
WARNING
EWA10660
After adjusting the brake pedal free
play, check the operation of thebrake light.
Tightening torque:
Brake torque rod nut:
49 Nm (4.9 m·kgf, 36 ft·lbf)
Tightening torque:
Axle nut:
104 Nm (10.4 m·kgf, 77 ft·lbf)
U5D1E1E0.book Page 32 Friday, September 5, 2008 1:17 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-33
6
EAU25851
Troubleshooting Although Yamaha motorcycles receive
a thorough inspection before shipment
from the factory, trouble may occur dur-
ing 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 inferi-
or, have a shorter service life and can
lead to expensive repair bills.
WARNING
EWA15141
When checking the fuel system, do
not smoke, and make sure there are
no open flames or sparks in the ar-
ea, including pilot lights from waterheaters or furnaces. Gasoline or
gasoline vapors can ignite or ex-
plode, causing severe injury or
property damage.
U5D1E1E0.book Page 33 Friday, September 5, 2008 1:17 PM

MOTORCYCLE CARE AND STORAGE
7-1
7
EAU26004
Care While 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 motor-
cycle. 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 cleaning
1. Cover the muffler outlet with a
plastic bag after the engine has
cooled down.
2. Make sure that all caps and covers
as well as all electrical couplers
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 de-
greaser off with water.
Cleaning
NOTICE
ECA10772


Avoid using strong acidic wheel
cleaners, especially on spoked
wheels. If such products are
used on hard-to-remove dirt, do
not leave the cleaner on the af-
fected area any longer than in-
structed. Also, thoroughly rinse
the area off with water, immedi-
ately dry it, and then apply a cor-
rosion protection spray.


Improper cleaning can damage
plastic parts (such as cowlings,
panels, windshields, headlight
lenses, meter lenses, etc.) and
the mufflers. Use only a soft,
clean cloth or sponge with wa-
ter to clean plastic. However, if
the plastic parts cannot be thor-
oughly cleaned with water, di-
luted mild detergent with water
may be used. Be sure to rinseoff any detergent residue using
plenty of water, as it is harmful
to plastic parts.


Do not use any harsh chemical
products on plastic parts. Be
sure to avoid using cloths or
sponges which have been in
contact 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.
U5D1E1E0.book Page 1 Friday, September 5, 2008 1:17 PM

MOTORCYCLE CARE AND STORAGE
7-3
7
NOTICE
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.
TIP

Consult a Yamaha dealer for ad-
vice on what products to use.


Washing, rainy weather or humid
climates can cause the headlight
lens to fog. Turning the headlight
on for a short period of time will
help remove the moisture from thelens.
EAUM1901
Storage Short-term
Always store your motorcycle in a cool,
dry place and, if necessary, protect it
against dust with a porous cover.NOTICE
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.3. Perform the following steps to pro-
tect 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 damage or injury
from sparking, make sure to
ground the spark plug elec-
trodes while turning the en-
gine over.
[EWA10951]
4. Lubricate all control cables and the
pivoting points of all levers and
pedals as well as of the side-
stand/centerstand.
U5D1E1E0.book Page 3 Friday, September 5, 2008 1:17 PM

SPECIFICATIONS
8-2
8
5th:
23/27 (0.852)
Chassis:Frame type:
Double cradle
Caster angle:
26.50 °
Trail:
104.5 mm (4.11 in)Front tire:Type:
Tubeless
Size:
100/80-17M/C 52S
Manufacturer/model:
PIRELLI/SPORT DEMONRear tire:Type:
Tubeless
Size:
130/70-17M/C 62S
Manufacturer/model:
PIRELLI/SPORT DEMONLoading:Maximum load:
167 kg (368 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:
225 kPa (2.25 kgf/cm², 33 psi)Rear:
250 kPa (2.50 kgf/cm², 36 psi)
Loading condition:
90–167 kg (198–368 lb)
Front:
225 kPa (2.25 kgf/cm², 33 psi)
Rear:
250 kPa (2.50 kgf/cm², 36 psi)
Front wheel:Wheel type:
Cast wheel
Rim size:
17M/C x MT2.15Rear wheel:Wheel type:
Cast wheel
Rim size:
17M/C x MT3.00Front brake:Type:
Single disc brake
Operation:
Right hand operation
Recommended fluid:
DOT 3 or 4Rear brake:Type:
Drum brake
Operation:
Right foot operationFront suspension:Type:
Telescopic forkSpring/shock absorber type:
Coil spring/oil damper
Wheel travel:
120.0 mm (4.72 in)
Rear suspension:Type:
Swingarm (link suspension)
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
120.0 mm (4.72 in)Electrical system:Ignition system:
TCI (digital)
Charging system:
AC magnetoBattery:Model:
YTX7L-BS
Voltage, capacity:
12 V, 6.0 AhHeadlight:Bulb type:
Halogen bulbBulb voltage, wattage × quantity:Headlight:
12 V, 35 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
U5D1E1E0.book Page 2 Friday, September 5, 2008 1:17 PM