2017 YAMAHA YS125 Owners Manual

Instrument and control functions
3-2
3
To unlock the steering
Insert the key and turn it to “ ”.
EAU1100D
In
dicator li ghts an d warnin g
lig ht
EAU11022
Turn si gnal in dicator li ght “ ”
This indicator light flashes when a turn
signal light is flashing.
EAU11061
Neutral in dicator li ght “ ”
This indicator light comes on when the
transmission is in the neutral position.
EAU11081
Hi gh beam in dicator li ght “ ”
This indicator light comes on when the
high beam of the headlight is switched
on.
EAU78310
En gine trou ble warnin g li ght “ ”
This warning light comes on if a prob-
lem is detected in the engine or other
vehicle control system. If this occurs,
have a Yamaha dealer check the on-
board diagnostic system.
The electrical circuit of the warning
light can be checked by turning the key
to “ ”. The warning light should come
on for a few seconds, and then go off.
If the warning light does not come on
initially when the key is turned to “ ”,
or if the warning light remains on, have
a Yamaha dealer check the vehicle.
EAUE2572
Eco in dicator li ght “ECO”
This indicator light comes on when the
vehicle is being operated in an environ-
mentally friendly, fuel-efficient manner.
The indicator light goes off when the
vehicle is stopped.
1. Turn.
1
1. Turn signal indicator light “ ”
2. Neutral indicator light “ ”
3. High beam indicator light “ ”
4. Eco indicator light “ECO”
5. Engine trouble warning light “ ”
1
2
3
4
5
UBT4E0E0.book Page 2 Thursday, November 17, 2016 10:55 AM

Instrument and control functions
3-3
3
TIPConsider the following tips to reduce
fuel consumption:
 Avoid high engine speeds during
acceleration.
 Travel at a constant speed.
 Select the transmission gear that
is appropriate for the vehicle
speed.
EAU78331
Multi-function meter unit
WARNING
EWA12423
Be sure to stop the vehicle before
makin g any settin g chan ges to the
multi-function meter unit. Chan gin g
settin gs while ri din g can d istract the
operator an d increase the risk of an
acci dent.The multi-function meter unit is
equipped with the following:
 speedometer 
odometer
 tripmeter
 tachometer
 fuel meter
 transmission gear display
TIPBe sure to turn the key to “ ” be-
fore using the “RESET/SELECT”
button.
 For the UK: To switch the speed-
ometer and odometer/tripmeter
displays between kilometers and
miles, push the “RESET/SELECT”
button for two seconds. However,
the display units can be switched
only while the odometer is dis-
played.Speed ometer
The speedometer shows the vehicle’s
traveling speed.
1. Tachometer
2. Fuel meter
3. Transmission gear display
4. Speedometer
5. Odometer/tripmeter
6. “RESET/SELECT” button
2
3
4
1
5
6
UBT4E0E0.book Page 3 Thursday, November 17, 2016 10:55 AM

Instrument and control functions
3-4
3
O
dometer an d tripmeter
The odometer shows the total distance
traveled by the vehicle.
The tripmeter shows the distance trav-
eled since it was last reset.
TIP The odometer will lock at 999999.
 The tripmeter will reset and conti-
nue counting after 9999.9 is
reached.Pushing the “RESET/SELECT” button
switches the display between the
odometer “ODO” and the tripmeter
“TRIP”. To reset the tripmeter, select it by
pushing the “RESET/SELECT” button,
and then push the “RESET/SELECT”
button for one second.
Tachometer
The tachometer allows the rider to
monitor the engine speed and keep it
within the ideal power range.
NOTICE
ECA10032
Do not operate the en
gine in the ta-
chometer red zone.
Re d zone: 9000 r/min an d a bove
Fuel meter
The fuel meter indicates the amount of
fuel in the fuel tank. The display seg-
ments of the fuel meter disappear from
“F” (full) towards “E” (empty) as the fuel
level decreases. When the last seg-
ment of the fuel meter and the fuel level
warning indicator “ ” start flashing,
refuel as soon as possible.TIPIf a problem is detected in the fuel me-
ter electrical circuit, all the display seg-
ments and the fuel level warning
indicator “ ” start flashing. If this oc-
curs, have a Yamaha dealer check the
electrical circuit.
1. Odometer/tripmeter
1
1. Tachometer
2. Tachometer red zone1 2
1. Fuel level warning indicator “ ”
2. Fuel meter
1
2
UBT4E0E0.book Page 4 Thursday, November 17, 2016 10:55 AM

Instrument and control functions
3-5
3 Transmission
gear display
This display shows the selected gear.
The neutral position, however, is not
displayed, it is indicated by the neutral
indicator light.
EAU1234M
Han dle bar switchesLeft
Ri ght
EAU12352
Pass switch “ ”
Press this switch to flash the headlight.TIPWhen the dimmer switch is set
to “ ”, the passing switch has no ef-
fect.
EAU12401
Dimmer switch “ / ”
Set this switch to “ ” for the high
beam and to “ ” for the low beam.
EAU12461
Turn si gnal switch “ / ”
To signal a right-hand turn, push this
switch to “ ”. To signal a left-hand
turn, push this switch to “ ”. When
released, the switch returns to the cen-
ter position. To cancel the turn signal
lights, push the switch in after it has re-
turned to the center position.
EAU12501
Horn switch “ ”
Press this switch to sound the horn.
1. Transmission gear display
1
1. Pass switch “ ”
2. Dimmer switch “ / ”
3. Turn signal switch “ / ”
4. Horn switch “ ”
1. Start switch “ ”
12
34
1
UBT4E0E0.book Page 5 Thursday, November 17, 2016 10:55 AM

Instrument and control functions
3-6
3
EAU12713
Start switch “ ”
Push this switch to crank the engine
with the starter. See page 5-1 for start-
ing instructions prior to starting the en-
gine.
EAU12822
Clutch leverThe clutch lever is located on the left
side of the handlebar. To disengage
the clutch, pull the lever toward the
handlebar 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
3-13.)
EAU12872
Shift pe dalThe shift pedal is located on the left
side of the motorcycle and is used in
combination with the clutch lever when
shifting the gears of the 5-speed con-
stant-mesh transmission equipped on
this motorcycle.
1. Clutch lever
1
1. Shift pedal
1
UBT4E0E0.book Page 6 Thursday, November 17, 2016 10:55 AM

Instrument and control functions
3-7
3
EAU78900
Brake leverThe brake lever is located on the right
side of the handlebar. To apply the
front brake, pull the lever toward the
throttle grip.
This model is equipped with a unified
brake system.
When the brake lever is pulled, the rear
brake is also applied proportionally to
the front brake. For full braking perfor-
mance, operate the brake lever and
brake pedal simultaneously.TIP Because the unified brake system
is mechanical, additional free play
can be felt in the brake pedal when the brake lever is being
pulled, but this does not indicate a
malfunction.
 The unified brake system does not
operate when the brake pedal is
pressed down directly.
EAU78910
Brake ped alThe brake pedal is located on the right
side of the motorcycle. To apply the
rear brake, press down on the brake
pedal.TIPBecause the unified brake system is
mechanical, additional free play can be
felt in the brake pedal when the brake
lever is being pulled, but this does not
indicate a malfunction.
1. Brake lever
1
1. Brake pedal
1
UBT4E0E0.book Page 7 Thursday, November 17, 2016 10:55 AM

Instrument and control functions
3-8
3
EAU13003
Fuel tank capTo remove the fuel tank cap
Insert the key into the lock and turn it
1/4 turn clockwise. The lock will be re-
leased and the fuel tank cap can be re-
moved.
To install the fuel tank cap
1. Push the fuel tank cap into posi- tion with the key inserted in the
lock.
2. Turn the key counterclockwise to the original position, and then re-
move it.
TIPThe fuel tank cap cannot be installed
unless the key is in the lock. In addi-
tion, the key cannot be removed if the
cap is not properly installed and
locked.
WARNING
EWA11142
Make sure that the fuel tank cap is
properly installe d before ri din g.
Leakin g fuel is a fire hazar d.
EAU13213
FuelMake sure there is sufficient gasoline in
the tank.
WARNING
EWA10882
Gasoline an d gasoline vapors are
extremely flammab le. To avoid fires
an d explosions an d to re duce the
risk of injury when refuelin g, follow
these instructions.1. Before refueling, turn off the en- gine and be sure that no one is sit-
ting on the vehicle. Never refuel
while smoking, or while in the vi-
cinity of sparks, open flames, or
other sources of ignition such as
the pilot lights of water heaters
and clothes dryers.
2. Do not overfill the fuel tank. Stop filling when the fuel reaches the
bottom of the filler tube. Because
fuel expands when it heats up,
heat from the engine or the sun
can cause fuel to spill out of the
fuel tank.
1. Unlock.
1
UBT4E0E0.book Page 8 Thursday, November 17, 2016 10:55 AM

Instrument and control functions
3-9
3
3. Wipe up any spilled fuel immedi-ately. NOTICE: Immediately
wipe off spille d fuel with a clean,
d ry, soft cloth, since fuel may
d eteriorate painted surfaces or
plastic parts.
[ECA10072]
4. Be sure to securely close the fuel tank cap.
WARNING
EWA15152
Gasoline is poisonous an d can cau-
se injury or death. Han dle gasoline
with care. Never siphon gasoline by
mouth. If you shoul d swallow some
g asoline or inhale a lot of g asoline
vapor, or g et some gasoline in your
eyes, see your d octor immediately. If g
asoline spills on your skin, wash
with soap an d water. If g asoline
spills on your clothin g, chan ge your
clothes.
EAU76860
NOTICE
ECA11401
Use only unlea ded g asoline. The use
of lea ded g asoline will cause severe
d amag e to internal en gine parts,
such as the valves an d piston rin gs,
as well as to the exhaust system.
TIP This mark identifies the recom-
mended fuel for this vehicle as
specified by European regulation
(EN228).
 Check that gasoline nozzle has
the same identifier when fueling.Your Yamaha engine has been de-
signed to use regular unleaded gaso-
line with a research octane number of
95 or higher. If knocking (or pinging)
occurs, use a gasoline of a different
brand or premium unleaded fuel. Use
of unleaded fuel will extend spark plug
life and reduce maintenance costs.
1. Fuel tank filler tube
2. Maximum fuel level
1
2
Recommen ded fuel:
Regular unleaded gasoline (Gasohol
[E10] acceptable)
Fuel tank capacity:
14 L (3.7 US gal, 3.1 Imp.gal)
Fuel reserve amount: 2.2 L (0.58 US gal, 0.48 Imp.gal)
E10
UBT4E0E0.book Page 9 Thursday, November 17, 2016 10:55 AM