YAMAHA YBR250 2007 Owner's Manual

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INSTRUMENT AND CONTROL FUNCTIONS
ECA10070
Immediately wipe off spilled fuel with
a clean, dry, soft cloth, since fuel may
deteriorate painted surfaces or plastic
parts.
EAU33500
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 light comes on):
4.5 L (1.19 US gal) (1.00 Imp. gal)
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 designed
to use regular unleaded gasoline with a
research octane number of 91 or higher.
If knocking (or pinging) occurs, use a gasoline of a different brand. Use of
unleaded fuel will extend spark plug life
and reduce maintenance costs.
EAU13431
Catalytic converterThis model is equipped with a catalytic
converter in the exhaust system.
EWA10860
The exhaust system is hot after
operation. Make sure that the exhaust
system has cooled down before
doing any maintenance work.
ECA10700
The following precautions must be
observed to prevent a fire hazard or
other damages.l
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Use only unleaded gasoline. The
use of leaded gasoline will cause
unrepairable damage to the
catalytic converter.
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Never park the vehicle near
possible fire hazards such as
grass or other materials that
easily burn.
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Do not allow the engine to idle
too long.
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3-9
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INSTRUMENT AND CONTROL FUNCTIONS
EAU13800
SeatTo remove the seat1. Insert the key into the seat lock, and then turn it clockwise.
2. Pull the seat off.
1
2
1. Seat lock
2. UnlockTo install the seat
1. Insert the projections on the front of the seat into the seat holders
as shown.
1. Projection
2. Seat holder2. Push the rear of the seat down tolock it in place.
3. Remove the key.Make sure that the seat is properly
secured before riding.
EAU14300
Helmet holder
1
1. Helmet holderThe helmet holder is located under the
seat.
To secure a helmet to the helmet
holder 1. Open the seat. (See page 3-9.)
2. Attach the helmet to the helmet holder, and then securely close the
seat.
EWA10160
Never ride with a helmet attached to
the helmet holder, since the helmet
may hit objects, causing loss of
control and possibly an accident.
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3-10
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INSTRUMENT AND CONTROL FUNCTIONSTo release the helmet from the
helmet holder
Open the seat, remove the helmet from
the helmet holder, and then close the
seat.
EAU37890
Storage compartment1. Storage compartment
2. Owner’s tool kit
3. BandThe storage compartment is located
under the seat. (See page 3-9.)
When storing the owner’s manual or
other documents in the storage
compartment, be sure to wrap them in
a plastic bag so that they will not get
wet. When washing the vehicle, be
careful not to let any water enter the
storage compar tment.
EAU14880
Adjusting the shock
absorber assemblies1. Spring preload adjusting ring
2. Position indicatorEach shock absorber assembly is
equipped with a spring preload adjusting
ring.
ECA10100
Never attempt to turn an adjusting
mechanism beyond the maximum or
minimum settings.
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3-11
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INSTRUMENT AND CONTROL FUNCTIONS
EWA10210
Always adjust both shock absorber
assemblies equally, otherwise poor
handling and loss of stability may
result.To increase the spring preload and
thereby harden the suspension, turn the
adjusting ring on each shock absorber
assembly in direction (a). To decrease
the spring preload and thereby soften
the suspension, turn the adjusting ring
on each shock absorber assembly in
direction (b).Align the appropriate notch in the
adjusting ring with the position indicator
on the shock absorber.Spring preload setting:Minimum (soft): 1
Standard:
3
Maximum (hard): 5
EAU36700
Luggage strap holders1. Luggage strap holderThere are four luggage strap holders on
the bottom of the seat. To use the strap
holders, remove the seat, unhook the
straps from the hooks, and then install
the seat with the straps hanging out from
under the seat. (See page 3-9.)
EAU15301
SidestandThe sidestand is located on the left side
of the frame. Raise the sidestand or lower
it with your foot while holding the
motorcycle upright.The built-in sidestand switch is part of
the ignition circuit cut-off system, which
cuts the ignition in certain situations.
(See further down for an explanation of
the ignition circuit cut-off system.)
EWA10240
The vehicle must not be ridden with
the sidestand down, or if the
sidestand cannot be properly moved
up (or does not stay up), otherwise
the sidestand could contact the
ground and distract the operator,
resulting in a possible loss of control.
Yamaha’s ignition circuit cut-off
system has been designed to assist
the operator in fulfilling the
responsibility of raising the sidestand
before starting off. Therefore, check
this system regularly as described
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3-12
3
INSTRUMENT AND CONTROL FUNCTIONSbelow and have a Yamaha dealer
repair it if it does not function
properly.
EAU15311
Ignition circuit cut-off systemThe ignition circuit cut-off system
(comprising the sidestand switch, clutch
switch and neutral switch) has the
following functions. It prevents starting when the transmission is in gear and the
sidestand is up, but the clutch lever
is not pulled.
 It prevents starting when the transmission is in gear and the
clutch lever is pulled, but the
sidestand is still down.
 It cuts the running engine when the transmission is in gear and the
sidestand is moved down.
Periodically check the operation of the
ignition circuit cut-off system according
to the following procedure.
EWA10250
If a malfunction is noted, have a
Yamaha dealer check the system
before riding.
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INSTRUMENT AND CONTROL FUNCTIONS
With the engine turned off:
1. Move the sidestand down.
2. Make sure that the engine stop switch is turned on.
3. Turn the key on.
4. Shift the transmission into the neutral position.
5. Push the start switch.
Does the engine start?
With the engine still running:
6. Move the sidestand up.
7. Keep the clutch lever pulled.
8. Shift the transmission into gear.
9. Move the sidestand down.
Does the engine stall?
After the engine has stalled:
10. Move the sidestand up.
11. Keep the clutch lever pulled.
12. Push the start switch.
Does the engine start?
The system is OK. The motorcycle can be ridden.
This check is most reliable if performed with
a warmed-up engine.The neutral switch may be defective.
The motorcycle should not be ridden until
checked by a Yamaha dealer.
The sidestand switch may be defective.
The motorcycle should not be ridden until
checked by a Yamaha dealer.
The clutch switch may be defective.
The motorcycle should not be ridden until
checked by a Yamaha dealer.
YES NO YES NO YES NO NOTE:
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PRE-OPERATION CHECKS
EAU15592
The condition of a vehicle is the owner’s responsibility. Vital components can start to deteriorate quickly and unexpectedly,
even if the vehicle remains unused (for example, as a result of exposur\
e to the elements). Any damage, fluid leakage or loss
of tire air pressure could have serious consequences. Therefore, it is very important, in addition to a thorough visual inspection,
to check the following points before each ride.Pre-operation checks should be made each time the vehicle is used. Such an inspection can be accomplished in a very short
time; and the added safety it assures is more than worth the time involved.
EWA11150
If any item in the Pre-operation check list is not working properly, have it inspected and repaired before operating
the vehicle.
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4-2
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PRE-OPERATION CHECKS
EAU15605
Pre-operation check list
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PRE-OPERATION CHECKS
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OPERATION AND IMPORTANT RIDING POINTS
EAU15950
EWA10270
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Become thoroughly familiar
with all operating controls and
their functions before riding.
Consult a Yamaha dealer
regarding any control or function
that you do not thoroughly
understand.
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Never start the engine or operate
it in a closed area for any length
of time. Exhaust fumes are
poisonous, and inhaling them
can cause loss of
consciousness and death within
a short time. Always make sure
that there is adequate
ventilation.
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Before starting out, make sure
that the sidestand is up. If the
sidestand is not raised
completely, it could contact the
ground and distract the operator,
resulting in a possible loss of
control.
EAUW0090
Starting the engineIn order for the ignition circuit cut-off
system to enable starting, one of the
following conditions must be met:l
The transmission is in the neutral
position.
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The transmission is in gear with the
clutch lever pulled and the
sidestand up.
EWA10290
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Before starting the engine, check
the function of the ignition
circuit cut-off system according
to the procedure described on
page 3-12.
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Never ride with the sidestand
down.
1. Turn the key to “ON” and make sure
that the engine stop switch is set
to “
”.
ECAW0041
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The engine trouble warning light
should come on for a few
seconds, then go off. If the warning light does not go off,
ask a Yamaha dealer to check the
motorcycle.
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The speedometer needle will
sweep across the speed range
and then return to zero. The
tachometer needle will sweep
across the r/min range and then
return to zero. If either needle
does not sweep across their
ranges, ask a Yamaha dealer to
check the motorcycle.
2. Shift the transmission into the
neutral position.When the transmission is in the neutral
position, the neutral indicator light should
be on, otherwise have a Yamaha dealer
check the electrical circuit.3. Start the engine by pushing thestart switch.If the engine fails to start, release the
start switch, wait a few seconds, and
then try again. Each starting attempt
should be as short as possible to
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