2007 YAMAHA YBR250 wheel

TABLE OF CONTENTESSAFETY INFORMATION .................... 1-1
DESCRIPTION ................................... 2-1Left 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 - 2
Tachometer .................................... 3 - 3
Multi-function display ................... 3 - 3
Handlebar switches ...................... 3 - 4
Clutch lever ................................... 3 - 5
Shift pedal ..................................... 3 - 6
Brake lever .................................... 3 - 6
Brake pedal ................................... 3 - 6
Fuel tank cap ................................. 3 - 7
Fuel ................................................ 3 - 7
Catalytic converter ........................ 3 - 8
Seat ................................................ 3 - 9
Helmet holder ................................ 3 - 9
Storage compartment .................3-10
Adjusting the shock aborber
assemblies ............................... 3-10
Luggage strap holders ...............3-11
Sidestand ..................................... 3-11
Ignition circuit cut-off system .....3-12 PRE-OPERATION CHECKS .............. 4-1
Pre-operation check list ............... 4 - 2
OPERATION AND IMPORTANT
RIDING POINTS ................................. 5-1 Starting the engine ....................... 5 - 1
Shifting ........................................... 5 - 2
Tips for reducing fuel
consumption .............................. 5 - 3
Engine break-in ............................ 5 - 3
Parking .......................................... 5 - 4
PERIODIC MAINTENANCE AND
MINOR REPAIR .................................. 6-1 Owner’s tool kit .............................. 6 - 1
Periodic maintenance and lubrication chart ......................... 6 - 2
Removing and installing the cowling and panels ................... 6 - 6
Checking the spark plug .............. 6 - 7
Engine oil and oil filter element ... 6-8
Cleaning the air filter element ... 6-11
Checking the engine idling
speed ........................................ 6-12
Checking the throttle cable free play .................................... 6-12
Valve clearance .. ........................6-12
Tires ............................................. 6-13
Cast wheels ................................. 6-15
Adjusting the clutch lever free play .................................... 6-15Adjusting 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 ...........6-18
Drive chain slack ........................6-19
Cleaning and lubricating the
drive chain ............................... 6-20
Checking and lubricating the cables ....................................... 6-21
Checking and lubricating the throttle grip and cable .............6-21
Checking and lubricating the
brake and clutch levers ...........6-21
Checking and lubricating the brake and shift pedals ............6-22
Checking and lubricating the sidestand .................................. 6-22
Lubricating the rear
suspension .............................. 6-23
Checking the front fork ...............6-23
Checking the steering ................6-24
Checking the wheel bearings ....6-24
Battery .......................................... 6-24
Replacing the fuses ....................6-26
Replacing the headlight bulb ....6-27
Replacing a turn signal light bulb or the tail/brake light bulb .......6-28
indice.pmd 24/1/2007, 14:37
1

TABLE OF CONTENTES
Replacing the auxiliary lightb u l b ........................................... 6-28
Supporting the motorcycle .........6-29
Front wheel .................................. 6-29
Rear wheel .................................. 6-30
Troubleshooting ..........................6-31
Troubleshooting chart ................6-32
MOTORCYCLE CARE AND
STORAGE ........................................... 7-1
C a r e ............................................... 7 - 1
Storage .......................................... 7 - 3
SPECIFICATIONS .............................. 8-1
CONSUMER INFORMATION ............. 9-1 Identification numbers .................. 9 - 1
Vehicle identification number ...... 9 - 1
Model label .................................... 9 - 1
indice.pmd 24/1/2007, 14:37
2

1-2
1
SAFETY INFORMATION
l
The posture of the operator and
passenger is important for proper
control.lThe operator should keep both
hands on the handlebar and both
feet on the operator footrests
during operation to maintain
control of the motorcycle.lThe passenger should always
hold onto the operator, the seat
strap or grab bar, if equipped, with
both hands and keep both feet
on the passenger footrests.lNever carry a passenger unless
he or she can firmly place both
feet on the passenger footrests.
l
Never ride under the influence of
alcohol or other drugs.
l
This motorcycle is designed for on-
road use only. It is not suitable for
off-road use.
Protective apparel
The majority of fatalities from
motorcycle accidents are the result of
head injuries. The use of a safety helmet
is the single most critical factor in the
prevention or reduction of head injuries.
l
Always wear an approved helmet.
l
Wear a face shield or goggles. Wind
in your unprotected eyes could
contribute to an impairment of
vision that could delay seeing a
hazard.
l
The use of a jacket, heavy boots,
trousers, gloves, etc., is effective
in preventing or reducing abrasions
or lacerations.
l
Never wear loose-fitting clothes,
otherwise they could catch on the
control levers, footrests, or wheels
and cause injury or an accident.
l
Never touch the engine or exhaust
system during or after operation.
They become very hot and can
cause burns. Always wear
protective clothing that covers your
legs, ankles, and feet.
l
A passenger should also observe
the above precautions.
Modifications
Modifications made to this motorcycle
not approved by Yamaha, or the removal
of original equipment, may render the
motorcycle unsafe for use and may
cause severe personal injury.
Modifications may also make your motorcycle illegal to use.
Loading and accessories
Adding accessories or cargo to your
motorcycle can adversely affect stability
and handling if the weight distribution of
the motorcycle is changed. To avoid the
possibility of an accident, use extreme
caution when adding cargo or
accessories to your motorcycle. Use
extra care when riding a motorcycle that
has added cargo or accessories. Here
are some general guidelines to follow if
loading cargo or adding accessories to
your motorcycle:
Loading
The total weight of the operator,
passenger, accessories and cargo must
not exceed the maximum load limit.Maximum load:
167 kg (368 lb)When loading within this weight limit,
keep the following in mind:l
Cargo and accessory weight should
be kept as low and close to the
motorcycle as possible. Make sure
to distribute the weight as evenly
cap 1.pmd 24/1/2007, 14:37
2

6-14
6
PERIODIC MAINTENANCE AND MINOR REPAIRTire inspection1. Tire sidewall
2. Tire tread depthThe tires must be checked before each
ride. If the center tread depth reaches
the specified limit, if the tire has a nail
or glass fragments in it, or if the sidewall
is cracked, have a Yamaha dealer
replace the tire immediately.Minimum tire tread depth (frontand rear):
1.6 mm (0.06 in)The tire tread depth limits may differ from
country to country. Always comply with
the local regulations.
Tire information
This motorcycle is equipped with cast
wheels and tubeless tires.
EWA10460
l
l l
l
l
The front and rear tires should
be of the same make and design,
otherwise the handling
characteristics of the vehicle
cannot be guaranteed.
After extensive tests, only the
tires listed below have been
approved for this model by
Yamaha.
Front tire:
Size: 100/80-17M/C (52S)
Manufacturer/model: PIRELLI / SPORT DEMON
Rear tire:
Size: 130/70-17M/C (62S)
Manufacturer/model:
PIRELLI / SPORT DEMON
EWA10470
l
l l
l
l
Have a Yamaha dealer replace
excessively worn tires. Besides
being illegal, operating the
vehicle with excessively worn
tires decreases riding stability
and can lead to loss of control.
l
l l
l
l
The replacement of all wheel and
brake related parts, including the
tires, should be left to a Yamaha
dealer, who has the necessary
professional knowledge and
experience.
cap 6.pmd 24/1/2007, 14:37
14

6-15
6
PERIODIC MAINTENANCE AND MINOR REPAIR
EAU21960
Cast wheelsTo maximize the performance, durability,
and safe operation of your motorcycle,
note the following points regarding the
specified wheels.l
The wheel rims should be checked
for cracks, bends or warpage before
each ride. If any damage is found,
have a Yamaha dealer replace the
wheel. Do not attempt even the
smallest repair to the wheel. A
deformed or cracked wheel must be
replaced.
l
The wheel should be balanced
whenever either the tire or wheel
has been changed or replaced. An
unbalanced wheel can result in poor
performance, adverse handling
characteristics, and a shortened
tire life.
l
Ride at moderate speeds after
changing a tire since the tire surface
must first be “broken in” for it to
develop its optimal characteristics.
EAU22020
Adjusting the clutch lever
free play1. Locknut
2. Clutch lever free play adjusting bolt
3. Clutch lever free playThe clutch lever free play should
measure 10.0 - 15.0 mm (0.39 - 0.59 in)
as shown. Periodically check the clutch
lever free play and, if necessary, adjust
it as follows.1. Loosen the locknut at the clutch lever.
2. To increase the clutch lever free play, turn the adjusting bolt in
direction (a). To decrease the clutch
lever free play, turn the adjusting
bolt in direction (b).
3. Tighten the locknut.
If the specified free play cannot be
obtained as described above or if the
clutch does not operate correctly, have
a Yamaha dealer check the internal
clutch mechanism.
cap 6.pmd 24/1/2007, 14:37
15

6-16
6
PERIODIC MAINTENANCE AND MINOR REPAIR
EAU22192
Adjusting the brake pedal
position and free play
EWA10670
It is advisable to have a Yamaha dealer
make these adjustments.Brake pedal position
The top of the brake pedal should be
positioned approximately 29 mm
(1.14 in) below the top of the footrest.
Periodically check the brake pedal
position and, if necessary, adjust it as
follows.1. Loosen the locknut at the brake pedal.
2. To raise the brake pedal, turn the adjusting bolt in direction (a). To
lower the brake pedal, turn the
adjusting bolt in direction (b).
3. Tighten the locknut.
EWA11230
After adjusting the brake pedal
position, the brake pedal free play
must be adjusted.
A. Pedal height
B. Brake pedal free play
1 2
1. Adjusting bolt
2. LocknutBrake pedal free play
The brake pedal free play should
measure 15.0 - 20.0 mm (0.59 - 0.79 in)
as shown. Periodically check the brake
pedal free play and, if necessary, adjust
it as follows.
To increase the brake pedal free play, turn the adjusting nut at the brake rod in
direction (a). To decrease the b
rake pedal
free play, turn the adjusting nut in
direction (b).
1. Adjusting nut
EWA10680
l
l l
l
l
After adjusting the drive chain
slack or removing and installing
the rear wheel, always check the
brake pedal free play.
l
l l
l
l
If proper adjustment cannot be
obtained as described, have a
Yamaha dealer make this
adjustment.
l
l l
l
l
After adjusting the brake pedal
free play, check the operation of
the brake light.
cap 6.pmd 24/1/2007, 14:37
16

6-19
6
PERIODIC MAINTENANCE AND MINOR REPAIR
EAU22760
Drive chain slackThe drive chain slack should be checked
before each ride and adjusted if
necessary.
EAU22772
To check the drive chain slack
1
1. Drive chain slack1. Place the motorcycle on thesidestand.When checking and adjusting the drive
chain slack, there should be no weight
on the motorcycle.2. Shift the transmission into theneutral position.
3. Move the rear wheel by pushing the motorcycle to locate the tightest portion of the drive chain,
and then measure the drive chain
slack as shown.
Drive chain slack:
25.0 - 35.0 mm (0.98 - 1.38 in)4. If the drive chain slack is incorrect,
adjust it as follows.
EAU22821
To adjust the drive chain slack1. Axle nut
2. Drive chain slack adjusting nut
3. Locknut
4. Alignment marks1. Loosen the brake pedal free playadjusting nut, axle nut, and locknut
at each end of the swingarm.
2. To tighten the drive chain, turn the adjusting nut at each end of the swingarm in direction (a). To loosen
the drive chain, turn the adjusting
nut at each end of the swingarm in
direction (b), and then push the rear
wheel forward.
Using the alignment marks on each side
of the swingarm, make sure that both
adjusting nuts are in the same position
for proper wheel alignment.
ECA10570
Improper drive chain slack will
overload the engine as well as other
vital parts of the motorcycle and can
lead to chain slippage or breakage.
To prevent this from occurring, keep
the drive chain slack within the
specified limits.3. Tighten both locknuts and the axle
nut to the specified torques.
cap 6.pmd 24/1/2007, 14:38
19

6-24
6
PERIODIC MAINTENANCE AND MINOR REPAIR
EAU23280
Checking the steeringWorn or loose steering bearings may
cause danger. Therefore, the operation
of the steering must be checked as
follows at the intervals specified in the
periodic maintenance and lubrication
chart.1. Place a stand under the engine to raise the front wheel off the ground.
EWA10750
Securely support the motorcycle so
that there is no danger of it falling
over.2. Hold the lower ends of the front forklegs and try to move them forward
and backward. If any free play can
be felt, have a Yamaha dealer
check or repair the steering.
EAU23290
Checking the wheel bearingsThe front and rear wheel bearings must
be checked at the intervals specified in
the periodic maintenance and lubrication
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.
EAUW0100
BatteryThe battery is located under the seat.
(See page 3-9).
This model is equipped with a sealed
type (MF) battery, which does not require
any maintenance. There is no need to
check the electrolyte or to add distilled
water.
ECA10620
Never attempt to remove the battery
cell seals, as this would permanently
damage the battery.
EWA10760
l
l l
l
l
Electrolyte is poisonous and
dangerous since it contains
sulfuric acid, which causes
severe burns. Avoid any contact
with skin, eyes or clothing and
always shield your eyes when
working near batteries. In case
of contact, administer the
following FIRST AID.l
l l
l
l
EXTERNAL: Flush with plenty
of water.
l
l l
l
l
INTERNAL: Drink large
cap 6.pmd 24/1/2007, 14:38
24