YAMAHA YZF-R125 2008 User Guide

SAFETY INFORMATION
1-4
1 tor and may limit control ability,
therefore, such accessories are
not recommended.


Use caution when adding electri-
cal accessories. If electrical acces-
sories 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


GASOLINE IS HIGHLY FLAMMA-
BLE:
Always turn the engine off when
refueling.
Take care not to spill any gaso-
line on the engine or exhaust
system when refueling.
Never refuel while smoking or in
the vicinity of an open flame.


Never start the engine or let it run
for any length of time in a closed
area. The exhaust fumes are poi-
sonous and may cause loss of
consciousness and death within a
short time. Always operate your
motorcycle in an area that has ad-
equate ventilation.


Always turn the engine off before
leaving the motorcycle unattended
and remove the key from the main
switch. When parking the motor-
cycle, note the following:
The engine and exhaust system
may be hot, therefore, park the
motorcycle in a place where pe-
destrians or children are not like-
ly to touch these hot areas.
Do not park the motorcycle on a
slope or soft ground, otherwise it
may fall over.
Do not park the motorcycle near
a flammable source, (e.g., a ker-
osene heater, or near an open
flame), otherwise it could catch
fire.


When transporting the motorcycle
in another vehicle, make sure that
it is kept upright. If the motorcycle
should lean over, gasoline may
leak out of the fuel tank.


If you should swallow any gaso-
line, inhale a lot of gasoline vapor,
or allow gasoline to get into your
eyes, see your doctor immediately.
If any gasoline spills on your skinor clothing, immediately wash the
affected area with soap and water
and change your clothes.
U5D7E0E0.book Page 4 Tuesday, December 18, 2007 10:13 AM

DESCRIPTION
2-1
2
EAU10410
Left view1. Battery (page 6-29)
2. Fuse box (page 6-30)
3. Owner’s tool kit (page 6-1)
4. Shift pedal (page 3-6)
5. Coolant reservoir (page 6-12)U5D7E0E0.book Page 1 Tuesday, December 18, 2007 10:13 AM

DESCRIPTION
2-2
2
EAU10420
Right view1. Front brake fluid reservoir (page 6-21)
2. Engine oil filter element (page 6-9)
3. Dipstick (page 6-9)
4. Idle adjusting screw (page 6-14)
5. Rear brake fluid reservoir (page 6-21)
6. Brake pedal (page 3-6)
U5D7E0E0.book Page 2 Tuesday, December 18, 2007 10:13 AM

DESCRIPTION
2-3
2
EAU10430
Controls and instruments1. Clutch lever (page 3-5)
2. Left handlebar switches (page 3-4)
3. Multi-function display (page 3-3)
4. Main switch/steering lock (page 3-1)
5. Tachometer (page 3-3)
6. Right handlebar switches (page 3-4)
7. Throttle grip (page 6-15)
8. Brake lever (page 3-6)U5D7E0E0.book Page 3 Tuesday, December 18, 2007 10:13 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-1
3
EAU10460
Main switch/steering lock The main switch/steering lock controls
the ignition and lighting systems, and is
used to lock the steering. The various
positions are described below.
EAU36870
ON
All electrical circuits are supplied with
power, the meter lighting, taillight, li-
cense plate light and auxiliary lights
come on, and the engine can be start-
ed. The key cannot be removed.NOTE:The headlight comes on automatically
when the engine is started and stays on
until the key is turned to “OFF”, even ifthe engine stalls.
EAU10660
OFF
All electrical systems are off. The key
can be removed.
EAU10690
LOCK
The steering is locked, and all electrical
systems are off. The key can be re-
moved.
To lock the steering1. Turn the handlebars all the way to
the left or right.
2. Push the key in from the “OFF” po-
sition, and then turn it to “LOCK”
while still pushing it.
3. Remove the key.To unlock the steering
Push the key into the main switch, and
then turn it to “OFF” while still pushing
it.
WARNING
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 be-
fore turning the key to “OFF” or“LOCK”.
1. Push.
2. Turn.
1. Push.
2. Turn.
U5D7E0E0.book Page 1 Tuesday, December 18, 2007 10:13 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-2
3
EAU11003
Indicator and warning lights
EAU11020
Turn signal indicator light“”
This indicator light flashes when the
turn signal switch is pushed to the left or
right.
EAU11060
Neutral indicator light“”
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.
EAUM2290
Coolant temperature warning
light“”
This warning light comes on when the
engine overheats. When this occurs,
stop the engine immediately and allow
the engine to cool.
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 cir-
cuit.CAUTION:
ECA10020
Do not operate the engine if it isoverheated.
EAU11500
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.
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.
1. Neutral indicator light“”
2. Turn signal indicator light“”
3. High beam indicator light“”
4. Engine trouble warning light“”
5. Coolant temperature warning light“”U5D7E0E0.book Page 2 Tuesday, December 18, 2007 10:13 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-3
3
EAU11872
Tachometer The 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 ta-
chometer needle will sweep once
across the r/min range and then return
to zero r/min in order to test the electri-
cal circuit.CAUTION:
ECA10031
Do not operate the engine in the ta-
chometer red zone.Red zone: 10000 r/min and above
EAUM2301
Multi-function display The multi-function display is equipped
with the following:

a speedometer (which shows the
riding speed)


an odometer (which shows the to-
tal distance traveled)


two tripmeters (which show the
distance traveled since they were
last set to zero)


a fuel reserve tripmeter (which
shows the distance traveled since
the fuel level warning light came
on)


a fuel meter
NOTE:

Be sure to turn the key to “ON” be-
fore using the “RESET/ SELECT”
button.


For the U.K. only: To switch the
speedometer and odometer/trip-
meter displays between kilometers
and miles, press the “RESET/SE-
LECT” button for at least eight sec-onds.
Odometer and tripmeter modes
A brief push (less than one second) on
the “RESET/SELECT” button switches
the display between the odometer
mode “ODO” and the tripmeter modes
“TRIP 1” and “TRIP 2” in the following
order:
ODO → TRIP 1 → TRIP 2 → ODO
When approximately 1.6 L (0.42 US
gal)(0.35 Imp.gal) of fuel remains in the
fuel tank, the odometer display will au-
tomatically change to the fuel reserve
tripmeter mode “F-TRIP” and start
counting the distance traveled from that
point, and the last segment of the fuel
meter will start flashing. In that case,
pushing the “RESET/SELECT” button
1. Tachometer
2. Tachometer red zone
1. Multi-function display
2.“RESET/SELECT” button
U5D7E0E0.book Page 3 Tuesday, December 18, 2007 10:13 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-4
3switches the display between the vari-
ous tripmeter and odometer modes in
the following order:
F-TRIP → TRIP 1 → TRIP 2 → ODO →
F-TRIP
To reset a tripmeter, select it by push-
ing the “RESET/SELECT” button briefly
(less than one second), and then push
the button again for at least three sec-
onds while the selected tripmeter is
flashing. If you do not reset the fuel re-
serve tripmeter manually, it will reset it-
self automatically and the display will
return to the prior mode after refueling
and traveling 5 km (3 mi).
Fuel meterThe fuel meter indicates the amount of
fuel in the fuel tank. The display seg-
ments of the fuel meter disappear to-
wards “E” (Empty) as the fuel level
decreases. When the last fuel meter
segment starts flashing, refuel as soon
as possible.
EAU12347
Handlebar switches Left
Right
1. Fuel meter
1. Pass switch “PASS”
2. Dimmer switch“/”
3. Turn signal switch“/”
4. Horn switch“”
1. Engine stop switch“/”
2. Start switch“”
U5D7E0E0.book Page 4 Tuesday, December 18, 2007 10:13 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-5
3
EAU12360
Pass switch “PASS”
Press this switch to flash the headlight.
EAU12400
Dimmer switch“/”
Set this switch to“” for the high
beam and to“” for the low beam.
EAU12460
Turn signal switch“/”
To signal a right-hand turn, push this
switch to“”. To signal a left-hand
turn, push this switch to“”. When re-
leased, the switch returns to the center
position. To cancel the turn signal
lights, push the switch in after it has re-
turned to the center position.
EAU12500
Horn switch“”
Press this switch to sound the horn.
EAU12660
Engine stop switch“/”
Set this switch to“” before starting
the engine. Set this switch to“” to
stop the engine in case of an emergen-
cy, such as when the vehicle overturns
or when the throttle cable is stuck.
EAU12710
Start switch“”
Push this switch to crank the engine
with the starter.CAUTION:
ECA10050
See page 5-1 for starting instruc-tions prior to starting the engine.
EAU12820
Clutch lever The clutch lever is located at the left
handlebar grip. To disengage the
clutch, pull the lever toward the handle-
bar grip. To engage the clutch, release
the lever. The lever should be pulled
rapidly and released slowly for smooth
clutch operation.
The clutch lever is equipped with a
clutch switch, which is part of the igni-
tion circuit cut-off system. (See page
3-10.)1. Clutch lever
U5D7E0E0.book Page 5 Tuesday, December 18, 2007 10:13 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-6
3
EAU12870
Shift pedal The shift pedal is located on the left
side of the engine and is used in com-
bination with the clutch lever when
shifting the gears of the 6-speed con-
stant-mesh transmission equipped on
this motorcycle.
EAU12890
Brake lever The brake lever is located at the right
handlebar grip. To apply the front
brake, pull the lever toward the handle-
bar grip.
EAU12941
Brake pedal The brake pedal is on the right side of
the motorcycle. To apply the rear
brake, press down on the brake pedal.
1. Shift pedal
1. Brake lever
1. Brake pedal
U5D7E0E0.book Page 6 Tuesday, December 18, 2007 10:13 AM