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 lights and warning
lights............................................ 3-2
Multi-function meter unit ................ 3-4
Handlebar switches ...................... 3-11
Clutch lever .................................. 3-13
Shift pedal .................................... 3-13
Brake lever.................................... 3-13
Brake pedal .................................. 3-14
ABS (for ABS models) .................. 3-14
Fuel tank cap ................................ 3-15
Fuel ............................................... 3-16
Catalytic converter ....................... 3-17
Rider seat ..................................... 3-18
Sidestand ..................................... 3-18
Ignition circuit cut-off system ....... 3-19FOR 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 ................................ 5-3
Engine break-in ............................... 5-3
Parking ............................................ 5-4
PERIODIC MAINTENANCE AND
ADJUSTMENT................................... 6-1
Owner’s tool kit ............................... 6-2
Periodic maintenance chart for the
emission control system .............. 6-3
General maintenance and
lubrication chart ........................... 6-4
Removing and installing the
cowlings and panel ...................... 6-8
Checking the spark plug ............... 6-10
Engine oil and oil filter element ..... 6-11
Coolant.......................................... 6-14
Replacing the air filter element
and cleaning the check hose..... 6-16
Checking the engine idling
speed ......................................... 6-16
Adjusting the throttle grip free
play ............................................ 6-17
Valve clearance ............................. 6-17Tires .............................................. 6-18
Cast wheels .................................. 6-20
Adjusting the clutch lever free
play ............................................ 6-21
Checking the front brake lever
free play..................................... 6-22
Adjusting the brake pedal free
play ............................................ 6-22
Brake light switches ..................... 6-22
Checking the front and rear brake
pads .......................................... 6-23
Checking the brake fluid level ...... 6-24
Changing the brake fluid .............. 6-25
Drive chain slack........................... 6-25
Cleaning and lubricating the drive
chain.......................................... 6-27
Checking and lubricating the
cables ........................................ 6-27
Checking and lubricating the
throttle grip and cable ............... 6-28
Checking and lubricating the
brake and clutch levers ............. 6-28
Checking and lubricating the
brake pedal ............................... 6-29
Checking and lubricating the
sidestand................................... 6-29
Lubricating the swingarm
pivots......................................... 6-29
Checking the front fork ................. 6-30
Checking the steering................... 6-30
Checking the wheel bearings ....... 6-31U5D7E5E0.book Page 1 Thursday, August 21, 2014 9:30 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-2
6
EAU17362
Owner’s tool kitThe owner’s tool kit is located under
the rider seat. (See page 3-18.)
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, have
a Yamaha dealer perform it for you.1.
2. ZAUM1232
2
U5D7E5E0.book Page 2 Thursday, August 21, 2014 9:30 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-9
6 Cowling C
To remove the cowling
Remove the screws, and then pull the
cowling off as shown.
To install the cowlingPlace the cowling in the original posi-
tion, and then install the screws.
Cowling D
To remove the cowling1. Remove panel A, cowlings A, B
and C.2. Remove the screws and the quick
fasteners, and then take the cowl-
ing off.
TIPThe quick fastener is removed by
pushing the center pin in with a screw-
driver, then pulling the fastener out.To install the cowling1. Place the cowling in the original
position, and then install the
screws and the quick fasteners.
TIPTo install the quick fasteners, push the
center pin out so that it will protrude
from the fastener head, insert the fas-
tener into the cowling, and then push
the protruding pin in until it is flush with
the fastener head.2. Install cowlings C, B, A and panel
A.
EAUM2371
Panel A
To remove the panel1. Remove the rider seat. (See page
3-18.)
2. Remove the screws, and then take
the panel off.
1. Screw
2. Cowling CZAUM1172
1. Quick fastener
2. Screw
3. Cowling DZAUM1173
U5D7E5E0.book Page 9 Thursday, August 21, 2014 9:30 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-10
6To install the panel
1. Place the panel in the original po-
sition, and then install the screws.
2. Install the rider seat.
EAU19633
Checking the spark plugThe 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 main-
tenance and lubrication chart. In addi-
tion, the condition of the spark plug
can reveal the condition of the engine.
To remove the spark plug
1. Remove cowling A. (See page
6-8.)
2. Remove the spark plug cap.3. Remove the spark plug as shown,
with the spark plug wrench includ-
ed in the owner’s tool kit.
To check the spark plug
1. Check that the porcelain insulator
around the center electrode of the
spark plug is a medium-to-light
tan (the ideal color when the vehi-
cle is ridden normally).
TIPIf the spark plug shows a distinctly dif-
ferent color, the engine could be oper-
ating improperly. Do not attempt to
diagnose such problems yourself. In-
stead, have a Yamaha dealer check
the vehicle.
1. Screw
2. Panel A
1. Spark plug cap
1. Spark plug wrench
U5D7E5E0.book Page 10 Thursday, August 21, 2014 9:30 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-13
6
6. Clean the engine oil strainer with
solvent.
TIPSkip steps 7…9 if the oil filter element is
not being replaced.7. Remove the oil filter element cover
by removing the bolts.8. Remove and replace the oil filter
element and O-ring.9. Install the oil filter element cover
by installing the bolts, then tight-
ening them to the specified
torque.
TIPMake sure that the O-ring is properly
seated.10. Install the engine oil strainer, com-
pression spring, O-ring and the
engine oil drain bolt, and then
tighten it to the specified torque.
NOTICE: Before installing the
engine oil drain bolt, do not for-
get to install the O-ring, com-
pression spring, and oil strainer
in position.
[ECA10422]
1. Engine oil drain bolt
2. O-ring
3. Compression spring
4. Strainer
5. Oil pan
1. Bolt
2. Oil filter element cover
1. Oil filter element
2. O-ring
Tightening torques:
Oil filter element cover bolt:
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Tightening torques:
Engine oil drain bolt:
32 Nm (3.2 m·kgf, 23 ft·lbf)
U5D7E5E0.book Page 13 Thursday, August 21, 2014 9:30 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-33
6 If the breather hose is posi-
tioned in such a way that the
frame is exposed to electrolyte
or gas expelled from the bat-
tery, the frame could suffer
structural and external damag-
es.
[ECA10602]EAUM3460
Replacing the fusesThe fuse boxes, which contains the
fuses for the individual circuits, are lo-
cated under the rider seat. (See page
3-18.)
If a fuse for the individual circuits 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.
[EWA15132]
TIP
tool kit. Use the tongs to remove and
install a fuse.YZF-R125
1. Fuse boxZAUM1188
1. Headlight fuse
2. Signaling system fuse
3. Ignition fuse
4. Radiator fan motor fuse
5. Main fuse
6. Backup fuse
7. Spare fuseZAUM1189
10
10
15
7.5
5
20
7.5 7.5
15 20
5
7
1
2
3
45
6
U5D7E5E0.book Page 33 Thursday, August 21, 2014 9:30 AM