2011 YAMAHA YBR250 ECU

SAFETY INFORMATION
1-3
1


Do not run engine in poorly venti-
lated or partially enclosed areas
such as barns, garages, or car-
ports.


Do not run engine outdoors where
engine exhaust can be drawn into
a building through openings such
as windows and doors.
Loading
Adding accessories or cargo to your
motorcycle can adversely affect stabili-
ty and handling if the weight distribution
of the motorcycle is changed. To avoid
the possibility of an accident, use ex-
treme caution when adding cargo or
accessories to your motorcycle. Use
extra care when riding a motorcycle
that has added cargo or accessories.
Here, along with the information about
accessories below, are some general
guidelines to follow if loading cargo to
your motorcycle:
The total weight of the operator, pas-
senger, accessories and cargo must
not exceed the maximum load limit.
Operation of an overloaded vehicle
could cause an accident.When loading within this weight limit,
keep the following in mind:


Cargo and accessory weight
should be kept as low and close to
the motorcycle as possible. Se-
curely pack your heaviest items as
close to the center of the vehicle as
possible and make sure to distrib-
ute the weight as evenly as possi-
ble on both sides of the motorcycle
to minimize imbalance or instabili-
ty.


Shifting weights can create a sud-
den imbalance. Make sure that ac-
cessories and cargo are securely
attached to the motorcycle before
riding. Check accessory mounts
and cargo restraints frequently.
Properly adjust the suspension
for your load (suspension-ad-
justable models only), and
check the condition and pres-
sure of your tires.
Never attach any large or heavy
items to the handlebar, front
fork, or front fender. Theseitems, including such cargo as
sleeping bags, duffel bags, or
tents, can create unstable han-
dling or a slow steering re-
sponse.


This vehicle is not designed to
pull a trailer or to be attached to
a sidecar.
Genuine Yamaha Accessories
Choosing accessories for your vehicle
is an important decision. Genuine
Yamaha accessories, which are avail-
able only from a Yamaha dealer, have
been designed, tested, and approved
by Yamaha for use on your vehicle.
Many companies with no connection to
Yamaha manufacture parts and acces-
sories or offer other modifications for
Yamaha vehicles. Yamaha is not in a
position to test the products that these
aftermarket companies produce.
Therefore, Yamaha can neither en-
dorse nor recommend the use of ac-
cessories not sold by Yamaha or
modifications not specifically recom-
mended by Yamaha, even if sold and
installed by a Yamaha dealer.
Maximum load:
167 kg (368 lb)
U5D1E1E0.book Page 3 Friday, September 5, 2008 1:17 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-8
3
EAU13212
Fuel Make sure there is sufficient gasoline in
the tank.
WARNING
EWA10881
Gasoline and gasoline vapors are
extremely flammable. To avoid fires
and explosions and to reduce the
risk of injury when refueling, followthese instructions.
1. Before refueling, turn off the en-
gine and be sure that no one is sit-
ting on the vehicle. Never refuel
while smoking, or while in the vi-
cinity of sparks, open flames, or
other sources of ignition such as
the pilot lights of water heaters and
clothes dryers.
2. Do not overfill the fuel tank. Stop
filling when the fuel reaches the
bottom of the filler tube. Because
fuel expands when it heats up,
heat from the engine or the sun
can cause fuel to spill out of the
fuel tank.3. Wipe up any spilled fuel immedi-
ately. NOTICE: Immediately wipe
off spilled fuel with a clean, dry,
soft cloth, since fuel may deteri-
orate painted surfaces or plastic
parts.
[ECA10071]
4. Be sure to securely close the fuel
tank cap.
WARNING
EWA15151
Gasoline is poisonous and can
cause injury or death. Handle gaso-
line with care. Never siphon gaso-
line by mouth. If you should swallow
some gasoline or inhale a lot of gas-
oline vapor, or get some gasoline in
your eyes, see your doctor immedi-ately. If gasoline spills on your skin,
wash with soap and water. If gaso-
line spills on your clothing, change
your clothes.
EAU33500
NOTICE
ECA11400
Use only unleaded gasoline. The use
of leaded gasoline will cause severe
damage to internal engine parts,
such as the valves and piston rings,as well as to the exhaust system.
Your Yamaha engine has been de-
signed to use regular unleaded gaso-
line with a research octane number of
91 or higher. If knocking (or pinging) oc-
curs, use a gasoline of a different brand
1. Fuel tank filler tube
2. Fuel level
Recommended fuel:
REGULAR UNLEADED GASOLINE
ONLY
Fuel tank capacity:
19.2 L (5.07 US gal, 4.22 Imp.gal)
Fuel reserve amount (when the fuel
level warning symbol comes on):
4.5 L (1.19 US gal, 0.99 Imp.gal)
U5D1E1E0.book Page 8 Friday, September 5, 2008 1:17 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-10
3
EAU13800
Seat To remove the seat
1. Insert the key into the seat lock,
and then turn it clockwise.
2. 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. Push the rear of the seat down to
lock it in place.
3. Remove the key.
TIPMake sure that the seat is properly se-cured before riding.
EAU14301
Helmet holder The helmet holder is located under the
seat.
To secure a helmet to the helmet
holder
1. Open the seat. (See page 3-10.)
2. Attach the helmet to the helmet
holder, and then securely close the
seat. WARNING! Never ride with
a helmet attached to the helmet
holder, since the helmet may hit
objects, causing loss of control
and possibly an accident.
[EWA10161]
1. Seat lock
2. Unlock.
1. Projection
2. Seat holder
1. Helmet holder
U5D1E1E0.book Page 10 Friday, September 5, 2008 1:17 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-24
6
EAU23250
Lubricating the rear suspen-
sion The pivoting points of the rear suspen-
sion must be lubricated at the intervals
specified in the periodic maintenance
and lubrication chart.
EAU23272
Checking the front fork The condition and operation of the front
fork must be checked as follows at the
intervals specified in the periodic main-
tenance and lubrication chart.
To check the condition
Check the inner tubes for scratches,
damage and excessive oil leakage.
To check the operation
1. Place the vehicle on a level sur-
face and hold it in an upright posi-
tion. WARNING! To avoid injury,
securely support the vehicle so
there is no danger of it falling
over.
[EWA10751]
2. While applying the front brake,
push down hard on the handlebars
several times to check if the front
fork compresses and rebounds
smoothly.
NOTICE
ECA10590
If any damage is found or the front
fork does not operate smoothly,
have a Yamaha dealer check or re-pair it.
Recommended lubricant:
Lithium-soap-based grease
U5D1E1E0.book Page 24 Friday, September 5, 2008 1:17 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-25
6
EAU23283
Checking the steering Worn 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 pe-
riodic maintenance and lubrication
chart.
1. Place a stand under the engine to
raise the front wheel off the
ground. (See page 6-30 for more
information.) WARNING! To
avoid injury, securely support
the vehicle so there is no danger
of it falling over.
[EWA10751]
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 steering.
EAU23290
Checking the wheel bearings The 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.
EAUW0103
Battery The battery is located under the seat.
(See page 3-10.)
This model is equipped with a VRLA
(Valve Regulated Lead Acid) battery.
There is no need to check the electro-
lyte or to add distilled water. However,
the battery lead connections need to be
checked and, if necessary, tightened.NOTICE
ECA10620
Never attempt to remove the battery
cell seals, as this would permanent-ly damage the battery.1. Negative battery lead (black)
2. Positive battery lead (red)
U5D1E1E0.book Page 25 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
6-30
6
EAU24350
Supporting the motorcycle Since this model is not equipped with a
centerstand, follow these precautions
when removing the front and rear
wheel or performing other maintenance
requiring the motorcycle to stand up-
right. Check that the motorcycle is in a
stable and level position before starting
any maintenance. A strong wooden
box can be placed under the engine for
added stability.
To service the front wheel
1. Stabilize the rear of the motorcycle
by using a motorcycle stand or, if
an additional motorcycle stand is
not available, by placing a jack un-
der the frame in front of the rear
wheel.
2. Raise the front wheel off the
ground by using a motorcycle
stand.
To service the rear wheel
Raise the rear wheel off the ground by
using a motorcycle stand or, if a motor-
cycle stand is not available, by placinga jack either under each side of the
frame in front of the rear wheel or under
each side of the swingarm.
EAU24360
Front wheel
EAU24582
To remove the front wheel
WARNING
EWA10821
To avoid injury, securely support the
vehicle so there is no danger of itfalling over.
1. Disconnect the speedometer ca-
ble from the front wheel.
2. Loosen the axle nut.
3. Lift the front wheel off the ground
according to the procedure in
“Supporting the motorcycle” on
page 6-30.1. Wheel axle
2. Wheel axle pinch bolt
U5D1E1E0.book Page 30 Friday, September 5, 2008 1:17 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-31
64. Remove the axle nut, pull the
wheel axle out, and then remove
the wheel. NOTICE: Do not apply
the brake after the wheel has
been removed together with the
brake disc, otherwise the brake
pads will be forced shut.
[ECA11071]
EAUW0160
To install the front wheel
1. 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 into the caliper.
2. Insert the wheel axle.
3. Lower the front wheel so that it is
on the ground.
4. Tighten the wheel axle to the spec-
ified torque.
5. Tighten the front fork pinch bolt to
the specified torque.6. Push down hard on the handlebar
several times to check for proper
fork operation.
EAU25080
Rear wheel
EAU25431
To remove the rear wheel
WARNING
EWA10821
To avoid injury, securely support the
vehicle so there is no danger of itfalling over.
1. Loosen the axle nut and the brake
torque rod nut at the brake shoe
plate.
Tightening torque:
Wheel axle:
60 Nm (6.0 m·kgf, 44 ft·lbf)
Tightening torque:
Front fork pinch bolt:
55 Nm (5.5 m·kgf, 40 ft·lbf)
1. Drive chain slack adjusting nut
2. Brake torque rod
3. Locknut
4. Brake pedal free play adjusting nut
5. Axle nut
U5D1E1E0.book Page 31 Friday, September 5, 2008 1:17 PM