2017 YAMAHA YZF-R125 AUX

Table of contents
Safety 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.......................3-12
Clutch lever ...................................3-13
Shift pedal .....................................3-14
Brake lever ....................................3-14
Brake pedal ...................................3-15
ABS ...............................................3-15
Fuel tank cap.................................3-16
Fuel................................................3-17
Catalytic converter ........................3-18
Rider seat ......................................3-19
Sidestand ......................................3-20
Ignition circuit cut-off system........3-20
For your safety – pre-operation
checks...............................................4-1
Operation and important riding
points.................................................5-1
Starting the engine ..........................5-2
Shifting ............................................5-3
Tips for reducing fuel
consumption ................................5-4
Engine break-in ...............................5-4
Parking ............................................5-5
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 ......................6-7Checking the spark plug ................. 6-9
Engine oil and oil filter element ..... 6-11
Coolant ......................................... 6-14
Replacing the air filter element
and cleaning the check hose..... 6-15
Checking the engine idling
speed......................................... 6-16
Adjusting the throttle grip free
play ............................................ 6-16
Valve clearance ............................. 6-17
Tires .............................................. 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 ...................... 6-23
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 ........................... 6-26
Cleaning and lubricating the drive
chain .......................................... 6-27
Checking and lubricating the
cables ........................................ 6-28
Checking and lubricating the
throttle grip and cable ............... 6-28
Checking and lubricating the
brake and clutch levers ............. 6-29
Checking and lubricating the
brake pedal................................ 6-29
Checking and lubricating the
sidestand ................................... 6-30
Lubricating the swingarm pivots... 6-30
Checking the front fork ................. 6-31
Checking the steering ................... 6-31
Checking the wheel bearings ....... 6-32
Battery .......................................... 6-32
Replacing the fuses ...................... 6-34
Replacing a headlight bulb ........... 6-35
Replacing an auxiliary light bulb ... 6-35
Tail/brake light .............................. 6-36
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Instrument and control functions
3-1
3
EAU10462
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.
EAU36871ON
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.
TIP
The headlight comes on automatically
when the engine is started and stays

even if the engine stalls.
EAU10662OFF
All electrical systems are off. The key
can be removed.
WARNING
EWA10062
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.
EAU10696LOCK
The steering is locked and all electrical
systems are off. The key can be re-
moved.
To lock the steering
1. Turn the handlebars all the way to
the left or right.
2. With the key in the “OFF” position,
push the key in and turn it to
“LOCK”.
3. Remove the key.
TIP
If the steering will not lock, try turning
the handlebars back to the right or left
slightly.
To unlock the steering
1. Push.
2. Turn.
1. Push.
2. Turn.
12
12
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Periodic maintenance and adjustment
6-35
6
EAU34242
Replacing a headlight bulb
This model is equipped with halogen
bulb headlights. If a headlight bulb
burns out, have a Yamaha dealer re-
place it and, if necessary, adjust the
headlight beam.
EAU43234
Replacing an auxiliary light
bulb
This model is equipped with two auxil-
iary lights. If an auxiliary light bulb
burns out, replace it as follows.
1. Remove the auxiliary light bulb
socket (together with the bulb) by
pulling it out.
2. Remove the burnt-out bulb by
pulling it out.
3. Insert a new bulb into the socket.
4. Install the socket (together with
the bulb) by pushing it in.
1. Auxiliary light bulb
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Specifications
8-3
8
Brake/tail light:
LED
Front turn signal light:
10.0 W × 2
Rear turn signal light:
10.0 W × 2
Auxiliary light:
5.0 W × 2
License plate light:
5.0 W × 1
Meter lighting:
LED
Neutral indicator light:
LED
High beam indicator light:
LED
Turn signal indicator light:
LED
Fuel level warning light:
LED
Engine trouble warning light:
LED
ABS warning light:
LED
Fuse(s):
Main fuse:
20.0 A
Headlight fuse:
15.0 A
Signaling system fuse:
7.5 A
Ignition fuse:
7.5 A
Radiator fan motor fuse:
5.0 A
ABS control unit fuse:
10.0 A
ABS motor fuse:
30.0 A
ABS solenoid fuse:
20.0 A
Backup fuse:
10.0 A
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10-1
10
Index
A
ABS ...................................................... 3-15
ABS warning light ................................... 3-3
Air filter element and check hose,
replacing and cleaning ....................... 6-15
Auxiliary light bulb, replacing ............... 6-35
B
Battery .................................................. 6-32
Brake and clutch levers, checking and
lubricating .......................................... 6-29
Brake fluid, changing ........................... 6-25
Brake fluid level, checking ................... 6-24
Brake lever ........................................... 3-14
Brake light switches ............................. 6-23
Brake pedal .......................................... 3-15
Brake pedal, checking and
lubricating .......................................... 6-29
Brake pedal free play, adjusting........... 6-22
C
Cables, checking and lubricating ......... 6-28
Care ........................................................ 7-1
Catalytic converter ............................... 3-18
Clutch lever .......................................... 3-13
Clutch lever free play, adjusting ........... 6-21
Coolant ................................................. 6-14
Cowlings and panel, removing and
installing ............................................... 6-7
D
Data recording, vehicle .......................... 9-2
Diagnostic connectors ........................... 9-2
Dimmer switch ..................................... 3-12
Drive chain, cleaning and lubricating ... 6-27
Drive chain slack .................................. 6-26
E
Engine break-in ...................................... 5-4
Engine idling speed, checking ............. 6-16
Engine oil and oil filter element ............ 6-11
Engine stop switch ............................... 3-12
Engine trouble warning light................... 3-3
F
Front and rear brake pads, checking ... 6-23
Front brake lever free play, checking ... 6-22
Front fork, checking ............................. 6-31
Fuel....................................................... 3-17
Fuel consumption, tips for reducing ...... 5-4
Fuel level warning light ........................... 3-2
Fuel tank cap........................................ 3-16
Fuses, replacing ................................... 6-34
H
Handlebar switches.............................. 3-12Headlight bulb, replacing ...................... 6-35
High beam indicator light........................ 3-2
Horn switch........................................... 3-12
I
Identification numbers ............................ 9-1
Ignition circuit cut-off system ............... 3-20
Indicator lights and warning lights .......... 3-2
Info switch ............................................ 3-12
L
License plate light bulb, replacing ........ 6-37
M
Main switch/steering lock ....................... 3-1
Maintenance and lubrication, periodic ... 6-4
Maintenance, emission control
system .................................................. 6-3
Matte color, caution ................................ 7-1
Model label ............................................. 9-1
Multi-function meter unit ........................ 3-4
N
Neutral indicator light.............................. 3-2
P
Parking .................................................... 5-5
Part locations .......................................... 2-1
Pass switch........................................... 3-12
R
Rider seat.............................................. 3-19
S
Safety information................................... 1-1
Shifting .................................................... 5-3
Shift pedal............................................. 3-14
Sidestand .............................................. 3-20
Sidestand, checking and lubricating .... 6-30
Spark plug, checking .............................. 6-9
Specifications ......................................... 8-1
Starting the engine.................................. 5-2
Start switch ........................................... 3-12
Steering, checking ................................ 6-31
Storage ................................................... 7-4
Supporting the motorcycle ................... 6-37
Swingarm pivots, lubricating ................ 6-30
T
Tail/brake light ...................................... 6-36
Throttle grip and cable, checking and
lubricating ........................................... 6-28
Throttle grip free play, adjusting ........... 6-16
Tires ...................................................... 6-18
Tool kit .................................................... 6-2
Troubleshooting .................................... 6-38
Troubleshooting charts ......................... 6-39
Turn signal indicator light ....................... 3-2
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