engine YAMAHA YBR250 2007 Owners Manual

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
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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
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SAFETY INFORMATION
as possible on both sides of the
motorcycle to minimize imbalance
or instability.
l
Shifting weights can create a
sudden imbalance. Make sure that
accessories and cargo are securely
attached to the motorcycle before
riding. Check accessory mounts
and cargo restraints frequently.
l
Never attach any large or heavy
items to the handlebar, front fork,
or front fender. These items,
including such cargo as sleeping
bags, duffel bags, or tents, can
create unstable handling or a slow
steering response.
Accessories
Genuine Yamaha accessories have
been specifically designed for use on
this motorcycle. Since Yamaha cannot
test all other accessories that may be
available, you must personally be
responsible for the proper selection,
installation and use of non-Yamaha
accessories. Use extreme caution when
selecting and installing any accessories.
Keep the following guidelines in mind,
as well as those provided under“Loading” when mounting accessories.
l
Never install accessories or carry
cargo that would impair the
performance of your motorcycle.
Carefully inspect the accessory
before using it to make sure that it
does not in any way reduce ground
clearance or cornering clearance,
limit suspension travel, steering
travel or control operation, or
obscure lights or reflectors.lAccessories fitted to the
handlebar or the front fork area
can create instability due to
improper weight distribution or
aerodynamic changes. If
accessories are added to the
handlebar or front fork area, they
must be as lightweight as
possible and should be kept to a
minimum.lBulky or large accessories may
seriously affect the stability of the
motorcycle due to aerodynamic
effects. Wind may attempt to lift
the motorcycle, or the motorcycle
may become unstable in cross
winds. These accessories may
also cause instability whenpassing or being passed by large
vehicles.
lCertain accessories can displace
the operator from his or her
normal riding position. This
improper position limits the
freedom of movement of the
operator and may limit control
ability, therefore, such
accessories are not
recommended.
l
Use caution when adding electrical
accessories. If electrical
accessories exceed the capacity of
the motorcycle’s electrical system,
an electric failure could result,
which could cause a dangerous
loss of lights or engine power.
Gasoline and exhaust gas
l
GASOLINE IS HIGHLY
FLAMMABLE:lAlways turn the engine off when
refueling.lTake care not to spill any gasoline
on the engine or exhaust system
when refueling.lNever refuel while smoking or in
the vicinity of an open flame.
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SAFETY INFORMATION
l
Never start the engine or let it run
for any length of time in a closed
area. The exhaust fumes are
poisonous and may cause loss of
consciousness and death within a
short time. Always operate your
motorcycle in an area that has
adequate ventilation.
l
Always turn the engine off before
leaving the motorcycle unattended
and remove the key from the main
switch. When parking the
motorcycle, note the following:lThe engine and exhaust system
may be hot, therefore, park the
motorcycle in a place where
pedestrians or children are not
likely to touch these hot areas.lDo not park the motorcycle on a
slope or soft ground, otherwise it
may fall over.lDo not park the motorcycle near
a flammable source, (e.g., a
kerosene heater, or near an open
flame), otherwise it could catch
fire.
l
When transporting the motorcycle
in another vehicle, make sure that
it is kept upright. If the motorcycleshould lean over, gasoline may leak
out of the fuel tank.
l
If you should swallow any gasoline,
inhale a lot of gasoline vapor, or
allow gasoline to get into your eyes,
see your doctor immediately. If any
gasoline spills on your skin or
clothing, immediately wash the
affected area with soap and water
and change your clothes.
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DESCRIPTION
EAU10410
Left view1. Idle adjusting screw
2. Battery
3. Main fuse
4. Fuse box
5. Storage compartment
6. Grab bar
7. Seat lock
8. Shift pedal
9. Engine oil drain bolt
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DESCRIPTION
EAU10420
Right view1. Owner’s tool kit
2. Air filter element
3. Front brake fluid reservoir
4. Engine oil filter element
5. Engine oil filler cap
6. Brake pedal
7. Shock absorber assembly spring preload adjusting ring
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INSTRUMENT AND CONTROL FUNCTIONS
EAU10460
Main switch/steering lockThe main switch/steering lock controls
the ignition and lighting systems, and is
used to lock the steering. The various
positions are described below.
OFF ON
LOCK
EAU10570
ON
All electrical circuits are supplied with
power; the meter lighting, taillight and
auxiliary ligth come on, and the engine
can be started. The key cannot be
removed.The headlight comes on automatically
when the engine is started and stays
on until the key is turned to “OFF”
EAU10660
OFF
All electrical systems are off. The key
can be removed.
EAU10680
LOCK
The steering is locked, and all electrical
systems are off. The key can be
removed.To loc
k the steer
ing
1. Turn the handlebars all the way to the left.
2. Push the key in from the “OFF” position, and then turn it to “LOCK”
while still pushing it.
3. Remove the key.
1. Push
2. Turn
To unloc
k the steer
ing
Push the key in, and then turn it to “OFF”
while still pushing it.
1. Push
2. Turn
EWA10060
Never turn the key to “OFF” or
“LOCK” while the vehicle is moving,
otherwise the electrical systems will
be switched off, which may result in
loss of control or an accident. Make
sure that the vehicle is stopped before
turning the key to “OFF” or “LOCK”.
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INSTRUMENT AND CONTROL FUNCTIONS
EAU11003
Indicator and warning lights1. Turn signal indicator light “
/
”
2. Neutral indicator light “N”
3. High beam indicator light “”
4. Fuel level warning light “
”
5. Engine trouble warning light “
”
EAU11030
Turn signal indicator lights
“
” and “
”
The corresponding indicator light flashes
when the turn signal switch is pushed
to the left or right.
EAU11060
Neutral indicator light “N”
This indicator light comes on when the
transmission is in the neutral position.
EAU11080
High beam indicator light “
”
This indicator light comes on when the
high beam of the headlight is switched
on.EAU11350
Fuel level warning light “
”
This warning light comes on when the
fuel level drops below approximately
4.5 L (1.19 US gal) (1.00 Imp. gal). When
this occurs, refuel as soon as possible.
The electrical circuit of the warning light
can be checked by turning the key to
“ON”.
If the warning light does not come on
for a few seconds, then go off, have a
Yamaha dealer check the electrical
circuit.
EAU11470
Engine trouble warning light “
”
This warning light comes on or flashes
when an electrical circuit monitoring the
engine is defective. When this occurs,
have a Yamaha dealer check the self-
diagnosis system.
EAU11601
Speedometer1. Speedometer
2. TachometerThe speedometer shows the riding
speed.
When the key is turned to “ON”, the
speedometer needle will sweep once
across the speed range and then return
to zero in order to test the electrical
circuit.
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INSTRUMENT AND CONTROL FUNCTIONS
EAU11872
Tachometer1. Speedometer
2. TachometerThe electric tachometer allows the rider
to monitor the engine speed and keep it
within the ideal power range.
When the key is turned to “ON”, the
tachometer needle will sweep once
across the r/min range and then return
to zero r/min in order to test the electrical
circuit.
ECA10031
Do not operate the engine in the
tachometer red zone.
Red zone: 10.000 r/min and above
EAUW0150
Multi-function display
Km
RESET
SELECT
TRIP
ODO
1
23
1. Display
2. “SELECT” button
3. “RESET” buttonThe multi-function display is equipped
with the following:l
an odometer (which shows the total
distance traveled)
l
two tripmeters (which show the
distance traveled since they were
last set to zero)
l
a fuel reserve tripmeter (which
shows the distance traveled on the
fuel reserve)
l
a fuel meter
l
a clock
Be sure to turn the key to “ON” before
using the “SELECT” and “RESET”
buttons.Odometer, tripmeter and clock
modes
Pushing the “SELECT” button switches
the display between the odometer
mode “ODO” and the tripmeter modes
“TRIP 1”, “TRIP 2” and the clock mode
in the following order:
ODO
→ TRIP 1 → TRIP 2 → CLOCK →
ODO
If the fuel level warning light comes on
(see page 3-2), the odometer display will
automatically change to the fuel reserve
tripmeter mode “F-TRIP” and start
counting the distance traveled from that
point. In that case, pushing the
“SELECT” button switches the display
between the various tripmeter, odometer
and clock modes in the following order:
F-TRIP → TRIP 1 → TRIP 2 → CLOCK
→ ODO → F-TRIP
To reset a tripmeter, select it by pushing
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INSTRUMENT AND CONTROL FUNCTIONSthe “SELECT” button, and then push the
“RESET” button for at least one second.
If you do not reset the fuel reserve
tripmeter manually, it will reset itself
automatically and the display will return
to the prior mode after refueling and
traveling 5 km (3mi).
Clock mode
To set the clock:1. Push the “SELECT” button and “RESET” button together for at
least two seconds.
2. When the hour digits start flashing, push the “RESET” button to set the
hours.
3. Push the “SELECT” button, and the minute digits will start flashing.
4. Push the “RESET” button to set the minutes.
5. Push the “SELECT” button and then release it to start the clock.
Fuel meter
With the key in the “ON” position, the
fuel meter indicates the amount of fuel
in the fuel tank. The display segments
of the fuel meter disappear towards “E”
(Empty) as the fuel level decreases. When the fuel level reaches the bottom
segment near “E”, the fuel level warning
indicator and the bottom segment will
flash. Refuel as soon as possible.
EAU12347
Handlebar switches1. Pass switch“
”
2. Dimmer switch “
/
”
3. Turn signal switch “
/
”
4. Horn switch “
”1
2
1. Engine stop switch “
/
”
2. Start switch ”
”
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