TABLE OF CONTENTSSAFETY INFORMATION.................. 1-1
Further safe-riding points ............... 1-5
DESCRIPTION.................................. 2-1
Left view ......................................... 2-1
Right view ....................................... 2-2
Controls and instruments ............... 2-3
INSTRUMENT AND CONTROL
FUNCTIONS...................................... 3-1
Immobilizer system......................... 3-1
Main switch/steering lock............... 3-2
Indicator lights and warning
lights............................................ 3-3
Multi-function meter unit ................ 3-5
Anti-theft alarm (optional) ............. 3-13
Handlebar switches ...................... 3-14
Front brake lever .......................... 3-15
Rear brake lever ........................... 3-15
ABS (for ABS models) .................. 3-16
Fuel tank cap ................................ 3-17
Fuel ............................................... 3-17
Catalytic converters...................... 3-19
Seat .............................................. 3-19
Storage compartments................. 3-20
Adjusting the shock absorber
assemblies ................................ 3-21
Sidestand ..................................... 3-22
Ignition circuit cut-off system ....... 3-23FOR YOUR SAFETY –
PRE-OPERATION CHECKS............. 4-1
OPERATION AND IMPORTANT
RIDING POINTS................................ 5-1
Starting the engine .......................... 5-1
Starting off ...................................... 5-2
Acceleration and deceleration ........ 5-3
Braking ............................................ 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 panels ...... 6-8
Checking the spark plug ............... 6-10
Engine oil....................................... 6-12
Final transmission oil..................... 6-14
Coolant.......................................... 6-15
Air filter and V-belt case air filter
elements and check hoses ........ 6-16
Checking the throttle grip free
play ............................................ 6-18
Valve clearance ............................. 6-18Tires .............................................. 6-18
Cast wheels .................................. 6-20
Checking the front and rear brake
lever free play ............................ 6-21
Checking the front and rear brake
pads .......................................... 6-21
Checking the brake fluid level ...... 6-22
Changing the brake fluid .............. 6-24
Checking and lubricating the
cables ........................................ 6-24
Checking and lubricating the
throttle grip and cable ............... 6-24
Lubricating the front and rear
brake levers ............................... 6-25
Checking and lubricating the
centerstand and sidestand........ 6-25
Checking the front fork ................. 6-26
Checking the steering................... 6-27
Checking the wheel bearings ....... 6-27
Battery .......................................... 6-27
Replacing the fuses ...................... 6-29
Replacing a headlight bulb ........... 6-30
Tail/brake light .............................. 6-31
Front turn signal light .................... 6-31
Replacing a rear turn signal light
bulb ........................................... 6-31
Replacing the license plate light
bulb ........................................... 6-32
Auxiliary light ................................ 6-33
Troubleshooting............................ 6-33
Troubleshooting charts................. 6-34U2DME1E0.book Page 1 Wednesday, October 23, 2013 1:37 PM
SAFETY INFORMATION
1-3
1Avoid Carbon Monoxide Poisoning
All engine exhaust contains carbon
monoxide, a deadly gas. Breathing
carbon monoxide can cause head-
aches, dizziness, drowsiness, nausea,
confusion, and eventually death.
Carbon Monoxide is a colorless, odor-
less, tasteless gas which may be
present even if you do not see or smell
any engine exhaust. Deadly levels of
carbon monoxide can collect rapidly
and you can quickly be overcome and
unable to save yourself. Also, deadly
levels of carbon monoxide can linger
for hours or days in enclosed or poorly
ventilated areas. If you experience any
symptoms of carbon monoxide poi-
soning, leave the area immediately, get
fresh air, and SEEK MEDICAL TREAT-
MENT.
Do not run engine indoors. Even if
you try to ventilate engine exhaust
with fans or open windows and
doors, carbon monoxide can rap-
idly reach dangerous levels.
Do not run engine in poorly venti-
lated or partially enclosed areas
such as barns, garages, or car-
ports.Do not run engine outdoors where
engine exhaust can be drawn into
a building through openings such
as windows and doors.
Loading
Adding accessories or cargo to your
scooter can adversely affect stability
and handling if the weight distribution
of the scooter is changed. To avoid the
possibility of an accident, use extreme
caution when adding cargo or acces-
sories to your scooter. Use extra care
when riding a scooter that has added
cargo or accessories. Here, along with
the information about accessories be-
low, are some general guidelines to fol-
low if loading cargo to your scooter:
The total weight of the operator, pas-
senger, accessories and cargo must
not exceed the maximum load limit.
Operation of an overloaded vehicle
could cause an accident.When loading within this weight limit,
keep the following in mind:
Cargo and accessory weight
should be kept as low and close to
the scooter as possible. Securely
pack your heaviest items as close
to the center of the vehicle as pos-
sible and make sure to distribute
the weight as evenly as possible
on both sides of the scooter to
minimize imbalance or instability.
Shifting weights can create a sud-
den imbalance. Make sure that
accessories and cargo are se-
curely attached to the scooter be-
fore riding. Check accessory
mounts and cargo restraints fre-
quently.
• Properly adjust the suspension
for your load (suspension-ad-
justable models only), and
check the condition and pres-
sure of your tires.
• Never attach any large or heavy
items to the handlebar, front
fork, or front fender. Such items
can create unstable handling or
a slow steering response.
Maximum load:
YP125R 185 kg (408 lb)
YP125RA 181 kg (399 lb)
U2DME1E0.book Page 3 Wednesday, October 23, 2013 1:37 PM
DESCRIPTION
2-1
2
EAU10411
Left view
1
5
2
4
3
7 6
98 10 11
12
1. Headlight (page 6-30)
2. Battery (page 6-27)
3. Main fuse (page 6-29)
4. Coolant reservoir cap (page 6-15)
5. Coolant level check window (page 6-15)
6. Rear storage compartment (page 3-20)
7. V-belt case air filter element (page 6-16)
8. Shock absorber assembly spring preload adjusting ring (page 3-21)9. Air filter element (left) (page 6-16)
10.Engine oil filter element (page 6-12)
11.Sidestand (page 3-22)
12.Front brake pads (page 6-21)U2DME1E0.book Page 1 Wednesday, October 23, 2013 1:37 PM
INSTRUMENT AND CONTROL FUNCTIONS
3-4
3
EAU11081
High beam indicator light “ ”
This indicator light comes on when the
high beam of the headlight is switched
on.
EAU11354
Fuel level warning light “ ”
This warning light comes on when the
fuel level drops below approximately
2.5 L (0.66 US gal, 0.55 Imp.gal). When
this occurs, refuel as soon as possible.
The electrical circuit of the warning
light can be checked by turning the key
to “ON”. 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 “ON”,
or if the warning light remains on, have
a Yamaha dealer check the electrical
circuit.
EAU43024
Engine trouble warning light “ ”
This warning light comes on if an elec-
trical circuit monitoring the engine is
not working correctly. If 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”. 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 “ON”,
or if the warning light remains on, have
a Yamaha dealer check the electrical
circuit.
TIPThis warning light will come on when
switch is pushed, but this does not in-
dicate a malfunction.
EAUM3381
ABS warning light “ ” (for ABS
models)
In normal operation, the ABS warning
light comes on when the key is turned
to “ON”, and goes off after traveling at
a speed of 10 km/h (6 mi/h) or higher.
If the ABS warning light:
does not come on when the key is
turned to “ON”
comes on or flashes while ridingdoes not go off after traveling at a
speed of 10 km/h (6 mi/h) or high-
er
The ABS may not work correctly. If any
of the above occurs, have a Yamaha
dealer check the system as soon as
possible. (See page 3-16 for an expla-
nation of the ABS.)
WARNING
EWA16041
If the ABS warning light does not go
off after traveling at a speed of 10
km/h (6 mi/h) or higher, or if the
warning light comes on or flashes
while riding, the brake system re-
verts to conventional braking. If ei-
ther of the above occurs, or if the
warning light does not come on at
all, use extra caution to avoid possi-
ble wheel lock during emergency
braking. Have a Yamaha dealer
check the brake system and electri-
cal circuits as soon as possible.
ABS
U2DME1E0.book Page 4 Wednesday, October 23, 2013 1:37 PM
INSTRUMENT AND CONTROL FUNCTIONS
3-5
3
TIPThe ABS warning light may come on
while accelerating the engine with the
scooter on its centerstand, but this
does not indicate a malfunction.
EAU26878
Immobilizer system indicator
light “ ”
The electrical circuit of the indicator
light can be checked by turning the key
to “ON”. The indicator light should
come on for a few seconds, and then
go off.
If the indicator light does not come on
initially when the key is turned to “ON”,
or if the indicator light remains on, have
a Yamaha dealer check the electrical
circuit.
When the key is turned to “OFF” and
30 seconds have passed, the indicator
light will start flashing indicating the im-
mobilizer system is enabled. After 24
hours have passed, the indicator light
will stop flashing, however the immobi-
lizer system is still enabled.The self-diagnosis device also detects
problems in the immobilizer system
circuits. (See page 3-12 for an expla-
nation of the self-diagnosis device.)
EAUM3313
Multi-function meter unit
WARNING
EWA12423
Be sure to stop the vehicle before
making any setting changes to the
multi-function meter unit. Changing
settings while riding can distract the
operator and increase the risk of an
accident.1. Tachometer
2. Speedometer
3. “SELECT” button
4. “RESET” button
5. Multi-function display
6. Clock
7. Fuel meter
8. “TRIP/INFO” switch
9. Coolant temperature displayZAUM1099
3
987654321
11 10
12
0
1000r/minx
km/h
E
F
CHkm
Odo
AirA
veCo
ns
OilV- Be
lt
Ti
m
eTripOdo
SELECT
RESET
F
4
6
5
7
2
18
9
INFOTRIP
U2DME1E0.book Page 5 Wednesday, October 23, 2013 1:37 PM
INSTRUMENT AND CONTROL FUNCTIONS
3-6
3The multi-function meter unit is
equipped with the following:
a speedometer
a tachometer
a fuel meter
a clock
an odometer and tripmeter display
a multi-function display
a coolant temperature meter
TIPBe sure to turn the key to “ON” be-
fore using the “Select”, “Reset”,
“TRIP” and “INFO” buttons.
When the key is turned to “ON”, all
display segments of the multi-
function meter unit will momen-
tarily appear in order to test the
electrical circuit. The speedome-
ter and odometer will then perform
a display check and a welcome
message will scroll across the
multi-function display.
For the UK, traveling speed, dis-
tance traveled, and fuel consump-
tion measurements can be
displayed in kilometer or mileage
based units. To switch between
miles and kilometers; hold the“SELECT” switch pushed, turn the
main switch to “ON”, and keep the
“SELECT” switch pushed for an
additional 8 seconds.
For other countries, traveling
speed, distance traveled and fuel
consumption measurements are
displayed in kilometer base units.
Speedometer
The speedometer shows the riding
speed.
Tachometer
The electric tachometer allows the rid-
er to monitor the engine speed and
keep it within the ideal power range.
NOTICE
ECAM1150
Do not operate the engine in the ta-
chometer high-rpm zone.
High-rpm zone: 10000 r/min and
aboveFuel meter
With the key in the “ON” position, the
fuel meter indicates the amount of fuel
in the fuel tank. The display segments
of the fuel meter disappear towards
“E” (Empty) as the fuel level decreases.
When the fuel level reaches the bottom
segment near “E”, the bottom segment
will flash. Refuel as soon as possible.
1. Tachometer
2. High-rpm zoneZAUM1101
1
98
7
6
54321
11 10
12
0
1000
r/min
x
km/h
E
F
2
1. Fuel meter
2. Fuel level warning indicator Ž
3. Fuel reserve tripmeterZAUM1102
987654321
11 10
12
0
1000r/minkm/h
E
F
CHkm
T
ripOdo
SELECT
RESET
F
3
1
2
U2DME1E0.book Page 6 Wednesday, October 23, 2013 1:37 PM
INSTRUMENT AND CONTROL FUNCTIONS
3-8
3Oil Trip and V-Belt Trip display total
distance traveled from the first run or
when the last reset was done.
To reset a tripmeter, select it by push-
ing the “TRIP” button until “Trip, Trip
Time, F Trip” is displayed. While “Trip,
Trip Time, F Trip” is displayed, push
the “TRIP” button for 3 seconds. If you
do not reset the fuel reserve tripmeter
manually, it will reset itself automatical-
ly and the display will return to the prior
mode after refueling and traveling 5 km
(3 mi).
TIPThe display cannot be changed back
Oil change indicator “Oil”
This indicator flashes at the initial 1000
km (600 mi), then at 5000 km (3000 mi)
and every 6000 km (3500 mi) thereafter
to indicate that the engine oil should be
changed.
After changing the engine oil, reset the
oil change indicator.
To reset the oil change indicator
1. Turn the key to “ON”.2. Push the “TRIP” button until “Oil”
(oil change tripmeter) is displayed
in the odometer and trip meter
display. While “Oil” is displayed,
push the “RESET” button for at
least 3 seconds. The oil change
tripmeter value will flash.
3. Hold the “RESET” button pushed
for 15 to 20 seconds.4. Release the “RESET” button, and
the oil trip value will reset to zero.
TIPIf the engine oil is changed before the
oil change indicator comes on (i.e. be-
fore the periodic oil change interval has
been reached), the indicator must be
reset after the oil change for the next
periodic oil change to be indicated at
the correct time. To reset the oil
change indicator before the periodic oil
change interval has been reached, fol-
low the above procedure.The electrical circuit of the indicator
can be checked according to the fol-
lowing procedure.
1.
1.
2. ZAUM1121
CH
km
Air
Oil
Odo
1INFOTRIP
2
SELECT RESET
km
1. ZAUM1122
CH
km
Air
Oil
Odo
SELECT RESET
km
Oil
1
U2DME1E0.book Page 8 Wednesday, October 23, 2013 1:37 PM
INSTRUMENT AND CONTROL FUNCTIONS
3-13
3 If the display indicates any error codes,
note the code number, and then have
a Yamaha dealer check the vehicle.
Coolant temperature meter
With the key in the “ON” position, the
coolant temperature meter indicates
the temperature of the coolant. The
coolant temperature varies with
changes in the weather and engine
load. If the top segment and coolant
temperature warning indicator flash,
stop the vehicle and let the engine
cool.
NOTICE
ECA10022
Do not continue to operate the en-
gine if it is overheating.
EAU12332
Anti-theft alarm (optional)This model can be equipped with an
optional anti-theft alarm by a Yamaha
dealer. Contact a Yamaha dealer for
more information.
1. Coolant temperature meterZAUM1115
1
CH
km
Trip
U2DME1E0.book Page 13 Wednesday, October 23, 2013 1:37 PM