TABLE OF CONTENTSSAFETY INFORMATION ..................1-1
Further safe-riding points ................1-5
DESCRIPTION ..................................2-1
Left view ..........................................2-1
Right view ........................................2-3
Controls and instruments.................2-5
INSTRUMENT AND CONTROL
FUNCTIONS.......................................3-1
Immobilizer system .........................3-1
Main switch/steering lock ................3-2
Indicator lights and
warning lights ..............................3-4
Speedometer ..................................3-5
Tachometer ....................................3-6
Multi-function display ......................3-6
Anti-theft alarm (optional) .............3-11
Handlebar switches ......................3-11
Front brake lever ..........................3-12
Rear brake lever ...........................3-13
ABS (for ABS models) ..................3-13
Fuel tank cap ................................3-14
Fuel ...............................................3-15
Catalytic converters ......................3-16
Securing bracket ...........................3-17
Seat ..............................................3-17
Storage compartments .................3-18
Travel trunk ..................................3-19
Adjusting the shock absorber
assemblies ................................3-20Sidestand ..................................... 3-21
Ignition circuit cut-off system ........ 3-21
Auxiliary DC jack .......................... 3-23
FOR 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
the cowling and panel ................. 6-8
Checking the spark plug ................. 6-9
Engine oil ..................................... 6-10
Final transmission oil .................... 6-13
Coolant ......................................... 6-14Air filter and V-belt case air filter
elements ................................... 6-16
Adjusting the throttle grip free
play ........................................... 6-17
Valve clearance ........................... 6-18
Tires ............................................. 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
Replacing a front turn signal light
bulb ........................................... 6-31
Replacing a tail/brake light bulb or
a rear turn signal light bulb ....... 6-31U2ABE2E0.book Page 1 Thursday, August 30, 2012 2:36 PM
SAFETY INFORMATION
1-3
1Avoid Carbon Monoxide Poisoning
All engine exhaust contains carbon
monoxide, a deadly gas. Breathing car-
bon monoxide can cause headaches,
dizziness, drowsiness, nausea, confu-
sion, 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 poison-
ing, 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 accesso-
ries 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 min-
imize imbalance or instability.
●
Shifting weights can create a sud-
den imbalance. Make sure that ac-
cessories and cargo are securely
attached to the scooter before
riding. Check accessory mounts
and cargo restraints frequently.
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 180 kg (398 lb)
YP125RA 172 kg (379 lb)
U2ABE2E0.book Page 3 Thursday, August 30, 2012 2:36 PM
DESCRIPTION
2-3
2
EAU32230
Right viewYP125R/YP125RA1. Grab bar (page 5-2)
2. Seat (page 3-17)
3. Coolant reservoir cap (page 6-14)
4. Battery (page 6-27)
5. Fuses (page 6-29)
6. Front brake pads (page 6-21)
7. Coolant level check window (page 6-14)8. Engine oil filler cap (page 6-10)
9. Rear brake pads (page 6-21)
10.Shock absorber assembly spring preload adjusting ring (page 3-20)U2ABE2E0.book Page 3 Thursday, August 30, 2012 2:36 PM
DESCRIPTION
2-4
2 YP125RA Business Edition / YP125R Sports
1. Grab bar (page 5-2)
2. Seat (page 3-17)
3. Coolant reservoir cap (page 6-14)
4. Battery (page 6-27)
5. Fuses (page 6-29)
6. Front brake pads (page 6-21)
7. Coolant level check window (page 6-14)
8. Engine oil filler cap (page 6-10)
9. Rear brake pads (page 6-21)10.Shock absorber assembly spring preload adjusting ring (page 3-20)
U2ABE2E0.book Page 4 Thursday, August 30, 2012 2:36 PM
INSTRUMENT AND CONTROL FUNCTIONS
3-4
3
EAU49392
Indicator lights and warning
lights
EAU11030
Turn signal indicator lights “ ”
and “ ”
The corresponding indicator light flash-
es when the turn signal switch is
pushed to the left or right.
EAU11080
High beam indicator light “ ”
This indicator light comes on when the
high beam of the headlight is switched
on.
EAU43023
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-diagno-
sis 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
the key is turned to “ON” and the start
switch is pushed, but this does not indi-
cate a malfunction.
EAU43032
ABS warning light “ ” (for ABS
models) NOTICE
ECA10831
If the ABS warning light comes on or
flashes while riding, the ABS may
not work correctly. If this occurs,
have a Yamaha dealer check the
electrical circuit.See page 3-13 for an explanation of the
ABS.
The electrical circuit of the warning light
can be checked by setting the engine
stop switch to “ ” and 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.
WARNING
EWA11350
When the ABS warning light comes
on or flashes while riding, the brake
system reverts to conventional brak-
1. Turn signal indicator light “ ”
2. High beam indicator light “ ”
3. Immobilizer system indicator light
4. Engine trouble warning light “ ”
5. Anti-lock Brake System (ABS) warning
light “ ” (for ABS models)
ABS
ABS
U2ABE2E0.book Page 4 Thursday, August 30, 2012 2:36 PM
INSTRUMENT AND CONTROL FUNCTIONS
3-5
3 ing. Therefore, be careful not to
cause the wheel to lock during emer-
gency braking.
TIPThe ABS warning light may come on
while accelerating the engine with the
scooter on its centerstand, but this
does not indicate a malfunction.
EAU38624
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 cir-
cuits. (See page 3-9 for an explanation
of the self-diagnosis device.)
EAUS1860
Speedometer UK ONLY
The speedometer shows the riding
speed.1. Speedometer
1. Speedometer
U2ABE2E0.book Page 5 Thursday, August 30, 2012 2:36 PM
INSTRUMENT AND CONTROL FUNCTIONS
3-9
3 been reached), the indicator must be
reset after the oil change for the next
periodic oil change to be indicated at
the correct time. (See page 6-10.)
The electrical circuit of the indicator can
be checked according to the following
procedure.
1. Turn the key to “ON”.
2. Check that the indicator comes on
for a few seconds and then goes
off.
3. If the indicator does not come on,
have a Yamaha dealer check the
electrical circuit.
V-belt replacement indicator “V-
BELT”
This indicator flashes every 18000 km
(10500 mi) when the V-belt needs to be
replaced.
The electrical circuit of the indicator can
be checked according to the following
procedure.
1. Turn the key to “ON”.
2. Check that the indicator comes on
for a few seconds and then goes
off.3. If the indicator does not come on,
have a Yamaha dealer check the
electrical circuit.
Self-diagnosis device
This model is equipped with a self-diag-
nosis device for various electrical cir-
cuits.
If a problem is detected in any of those
circuits, the multi-function display will
indicate an error code.
If the multi-function display indicates
such an error code, note the code num-
ber, and then have a Yamaha dealer
check the vehicle.
NOTICE
ECA11790
If the multi-function display indi-
cates an error code, the vehicle
should be checked as soon as pos-
sible in order to avoid engine dam-
age.The self-diagnosis device also detects
problems in the immobilizer system cir-
cuits.
If a problem is detected in the immobi-
lizer system circuits, the immobilizer
system indicator light will flash and themulti-function display will indicate an
error code when the key is turned to
“ON”.
TIPIf the multi-function display indicates er-
ror code 52, this could be caused by
transponder interference. If this error
appears, try the following.1. Use the code re-registering key to
start the engine.TIPMake sure there are no other immobi-
lizer keys close to the main switch, and
do not keep more than one immobilizer
key on the same key ring! Immobilizer1. Error code display
U2ABE2E0.book Page 9 Thursday, August 30, 2012 2:36 PM
INSTRUMENT AND CONTROL FUNCTIONS
3-10
3system keys may cause signal interfer-
ence, which may prevent the engine
from starting.
2. If the engine starts, turn it off, and
try starting the engine with the
standard keys.
3. If one or both of the standard keys
do not start the engine, take the
vehicle, the code re-registering
key and both standard keys to a
Yamaha dealer and have the stan-
dard keys re-registered.
If the multi-function display indicates
any error codes, note the code number,
and then have a Yamaha dealer check
the vehicle.
Clock mode
To set the clock:1. Push the “SELECT” button and
“RESET” button together for at
least two seconds.
2. When the hour digits start flashing,
push the “RESET” button to set the
hours.3. Push the “SELECT” button, and
the minute digits will start flashing.
4. Push the “RESET” button to set
the minutes.
5. Push the “SELECT” button and
then release it to start the clock.Ambient temperature display
Pushing the “SELECT” button for at
least two seconds switches the clock
display to the ambient temperature dis-
play. This display shows the ambient
temperature from –10 °C to 50 °C in 1
°C increments. The temperature dis-
played may vary from the ambient tem-
perature. Pushing the “SELECT” button
for at least two seconds switches the
ambient temperature display to the
clock display.
TIP●
If the ambient temperature falls be-
low –10 °C, a lower temperature
than –10 °C will not be displayed.
●
If the ambient temperature climbs
above 50 °C, a higher temperature
than 50 °C will not be displayed.
●
The accuracy of the temperature
reading may be affected when
riding slowly (approximately under
20 km/h (12.5 mi/h)) or when
stopped at traffic signals, railroad
crossings, etc.
U2ABE2E0.book Page 10 Thursday, August 30, 2012 2:36 PM