2011 YAMAHA YBR250 seat adjustment

TABLE OF CONTENTSSAFETY INFORMATION ..................1-1
DESCRIPTION ..................................2-1
Left view ..........................................2-1
Right view ........................................2-2
Controls and instruments.................2-3
INSTRUMENT AND CONTROL
FUNCTIONS.......................................3-1
Main switch/steering lock ................3-1
Indicator and warning lights ............3-2
Speedometer ..................................3-3
Tachometer ....................................3-3
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 converter ..........................3-9
Seat ..............................................3-10
Helmet holder ...............................3-10
Storage compartment ...................3-11
Adjusting the shock absorber
assemblies ................................3-11
Luggage strap holders ..................3-12
Sidestand ......................................3-12
Ignition circuit cut-off system ........3-13FOR 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 ............................... 5-2
Engine break-in .............................. 5-3
Parking ........................................... 5-3
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 the
cowling and panels ..................... 6-6
Checking the spark plug ................. 6-7
Engine oil and oil filter element ...... 6-9
Cleaning the air filter element ...... 6-11
Adjusting the engine idling
speed ........................................ 6-12
Checking the throttle cable free
play ........................................... 6-12
Valve clearance ............................ 6-13
Tires ............................................. 6-13
Cast wheels .................................. 6-15Adjusting the clutch lever free
play ........................................... 6-15
Adjusting the brake pedal position
and free play ............................. 6-16
Adjusting the rear brake light
switch ....................................... 6-17
Checking the front brake pads
and rear brake shoes ............... 6-17
Checking the front brake fluid
level .......................................... 6-18
Changing the brake fluid .............. 6-19
Drive chain slack .......................... 6-19
Cleaning and lubricating the
drive chain ................................ 6-21
Checking and lubricating the
cables ....................................... 6-21
Checking and lubricating the
throttle grip and cable ............... 6-22
Checking and lubricating the
brake and shift pedals .............. 6-22
Checking and lubricating the
brake and clutch levers ............ 6-23
Checking and lubricating the
sidestand .................................. 6-23
Lubricating the rear suspension ... 6-24
Checking the front fork ................. 6-24
Checking the steering .................. 6-25
Checking the wheel bearings ....... 6-25
Battery ......................................... 6-25
Replacing the fuses ..................... 6-27
Replacing the headlight bulb ....... 6-28U5D1E1E0.book Page 1 Friday, September 5, 2008 1:17 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-1
6
EAU17241
Periodic inspection, adjustment, and lu-
brication will keep your vehicle in the
safest and most efficient condition pos-
sible. Safety is an obligation of the vehi-
cle owner/operator. The most important
points of vehicle inspection, adjust-
ment, and lubrication are explained on
the following pages.
The intervals given in the periodic
maintenance and lubrication chart
should be simply considered as a gen-
eral guide under normal riding condi-
tions. However, depending on the
weather, terrain, geographical location,
and individual use, the maintenance in-
tervals may need to be shortened.
WARNING
EWA10321
Failure to properly maintain the ve-
hicle or performing maintenance ac-
tivities incorrectly may increase
your risk of injury or death during
service or while using the vehicle. If
you are not familiar with vehicle ser-
vice, have a Yamaha dealer performservice.
WARNING
EWA15121
Turn off the engine when performing
maintenance unless otherwise
specified.

A running engine has moving
parts that can catch on body
parts or clothing and electrical
parts that can cause shocks or
fires.


Running the engine while ser-
vicing can lead to eye injury,
burns, fire, or carbon monoxide
poisoning – possibly leading to
death. See page 1-1 for more in-
formation about carbon monox-ide.
EAU17391
Owner’s tool kit The owner’s tool kit is located under the
seat. (See page 3-10.)
The service information included in this
manual and the tools provided in the
owner’s tool kit are intended to assist
you in the performance of preventive
maintenance and minor repairs. How-
ever, additional tools such as a torque
wrench may be necessary to perform
certain maintenance work correctly.TIPIf you do not have the tools or experi-
ence required for a particular job, havea Yamaha dealer perform it for you.1. Owner’s tool kit
2. Band
U5D1E1E0.book Page 1 Friday, September 5, 2008 1:17 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-6
6
EAU18722
Removing and installing the
cowling and panels The cowling and panels shown need to
be removed to perform some of the
maintenance jobs described in this
chapter. Refer to this section each time
the cowling or a panel needs to be re-
moved and installed.
EAU19042
Cowling A
To remove the cowling1. Remove the seat and panel A.
(See pages 3-10 and 6-6.)2. Remove the screws, and then pull
the cowling off as shown.
To install the cowling
1. Place the cowling in the original
position, and then install the
screws.
2. Install the panel and the seat.
1. Panel B
1. Cowling A
2. Panel A
1. Screw
2. Quick fastener
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-7
6
EAUW0112
Panels A and B
To remove one of the panels1. Remove the seat. (See page
3-10.)
2. Remove the screws, and then pull
the panel off as shown.To install the panel
1. Place the panel in the original posi-
tion, and then install the screws.
2. Install the seat.
EAU19632
Checking the spark plug The spark plug is an important engine
component, which is easy to check.
Since heat and deposits will cause any
spark plug to slowly erode, the spark
plug should be removed and checked
in accordance with the periodic mainte-
nance and lubrication chart. In addition,
the condition of the spark plug can re-
veal the condition of the engine.
To remove the spark plug
1. Remove cowling A. (See page
6-6.)
2. Remove the spark plug cap.
1. Screw
2. Quick fastener
1. Spark plug cap
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-10
6 5. Remove the oil filter element drain
bolt to drain the oil from the oil filter
element.
TIPSkip steps 6–8 if the oil filter element isnot being replaced.
6. Remove the oil filter element cover
by removing the bolts.7. Remove and replace the oil filter
element and O-rings.
TIPMake sure that the O-rings are properlyseated.
8. Install the oil filter element cover by
installing the bolts, then tightening
them to the specified torque.
9. Install the engine oil drain bolt, and
then tighten it to the specified
torque.10. Install the oil filter element drain
bolt, and then tighten it to the spec-
ified torque.
11. Refill with the specified amount of
the recommended engine oil, and
then install and tighten the oil filler
bolt.
TIPBe sure to wipe off spilled oil on any
parts after the engine and exhaust sys-tem have cooled down.
1. Oil filter element cover bolt
2. Oil filter element drain bolt
1. Oil filter element
2. O-ring
Tightening torque:
Oil filter element cover bolt:
10 Nm (1.0 m·kgf, 7.4 ft·lbf)
Tightening torques:
Engine oil drain bolt:
20 Nm (2.0 m·kgf, 15 ft·lbf)
Oil filter element drain bolt:
7 Nm (0.7 m·kgf, 5.25 ft·lbf)
Recommended oil:
See page 8-1.
Oil quantity:
Without oil filter element replace-
ment:
1.35 L (1.43 US qt, 1.19 Imp.qt)
With oil filter element replacement:
1.45 L (1.53 US qt, 1.28 Imp.qt)
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-12
6 5. Apply recommended oil to the en-
tire surface of the element and
squeeze out the excess oil. It
should be wet but not dripping.
6. Insert the air filter element guide
into the air filter and install it in the
case. NOTICE: Make sure that
the air filter element is properly
seated in the air filter case. The
engine should never be operat-
ed without the air filter element
installed, otherwise the pis-
ton(s) and/or cylinder(s) may
become excessively worn.
[ECA10481]
7. Install the air filter case cover and
panel by installing the screws.
EAU34301
Adjusting the engine idling
speed The engine idling speed must be
checked and, if necessary, adjusted as
follows at the intervals specified in the
periodic maintenance and lubrication
chart.
The engine should be warm before
making this adjustment.
Check the engine idling speed and, if
necessary, adjust it to specification by
turning the idle adjusting screw. To in-
crease the engine idling speed, turn the
screw in direction (a). To decrease the
engine idling speed, turn the screw in
direction (b).TIPIf the specified idling speed cannot be
obtained as described above, have aYamaha dealer make the adjustment.
EAU21382
Checking the throttle cable
free play The throttle cable free play should mea-
sure 3.0–5.0 mm (0.12–0.20 in) at the
throttle grip. Periodically check the
throttle cable free play and, if neces-
sary, have a Yamaha dealer adjust it.
Recommended oil:
Engine oil
Engine idling speed:
1300–1500 r/min
1. Throttle cable free play
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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)
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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