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
1-5
1Aftermarket Tires and Rims
The tires and rims that came with your
scooter were designed to match the
performance capabilities and to provide
the best combination of handling, brak-
ing, and comfort. Other tires, rims, siz-
es, and combinations may not be
appropriate. Refer to page 6-18 for tire
specifications and more information on
replacing your tires.
Transporting the Scooter
Be sure to observe following instruc-
tions before transporting the scooter in
another vehicle.
●
Remove all loose items from the
scooter.
●
Point the front wheel straight
ahead on the trailer or in the truck
bed, and choke it in a rail to pre-
vent movement.
●
Secure the scooter with tie-downs
or suitable straps that are attached
to solid parts of the scooter, such
as the frame or upper front fork tri-
ple clamp (and not, for example, to
rubber-mounted handlebars or
turn signals, or parts that could
break). Choose the location for thestraps carefully so the straps will
not rub against painted surfaces
during transport.
●
The suspension should be com-
pressed somewhat by the tie-
downs, if possible, so that the
scooter will not bounce excessive-
ly during transport.
EAU10373
Further safe-riding points ●
Be sure to signal clearly when
making turns.
●
Braking can be extremely difficult
on a wet road. Avoid hard braking,
because the scooter could slide.
Apply the brakes slowly when
stopping on a wet surface.
●
Slow down as you approach a cor-
ner or turn. Once you have com-
pleted a turn, accelerate slowly.
●
Be careful when passing parked
cars. A driver might not see you
and open a door in your path.
●
Railroad crossings, streetcar rails,
iron plates on road construction
sites, and manhole covers be-
come extremely slippery when
wet. Slow down and cross them
with caution. Keep the scooter up-
right, otherwise it could slide out
from under you.
●
The brake pads could get wet
when you wash the scooter. After
washing the scooter, check the
brakes before riding.
U2ABE2E0.book Page 5 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
DESCRIPTION
2-5
2
EAU10430
Controls and instruments1. Rear brake lever (page 3-13)
2. Left handlebar switches (page 3-11)
3. Speedometer (page 3-5)
4. Multi-function display (page 3-6)
5. Tachometer (page 3-6)
6. Right handlebar switches (page 3-11)
7. Front brake lever (page 3-12)
8. Throttle grip (page 6-17)9. Main switch/steering lock (page 3-2)
10.Front storage compartment (page 3-18)U2ABE2E0.book Page 5 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
3-12
3
EAU12350
Pass switch “ ”
Press this switch to flash the headlight.
EAU12400
Dimmer switch “ / ”
Set this switch to “ ” for the high
beam and to “ ” for the low beam.
EAU12460
Turn signal switch “ / ”
To signal a right-hand turn, push this
switch to “ ”. To signal a left-hand
turn, push this switch to “ ”. When re-
leased, the switch returns to the center
position. To cancel the turn signal
lights, push the switch in after it has re-
turned to the center position.
EAU12500
Horn switch “ ”
Press this switch to sound the horn.
EAU12721
Start switch “ ”
With the sidestand up, push this switch
while applying the front or rear brake to
crank the engine with the starter. See
page 5-1 for starting instructions prior
to starting the engine.
EAU44711
The engine trouble warning light and
ABS warning light (ABS model only)
may come on when the key is turned to
“ON” and the start switch is pushed, but
this does not indicate a malfunction.
EAU12733
Hazard switch “ ”
With the key in the “ON” or “ ” posi-
tion, use this switch to turn on the haz-
ard lights (simultaneous flashing of all
turn signal lights).
The hazard lights are used in case of
an emergency or to warn other drivers
when your vehicle is stopped where it
might be a traffic hazard.NOTICE
ECA10061
Do not use the hazard lights for an
extended length of time with the en-
gine not running, otherwise the bat-
tery may discharge.
EAU12901
Front brake lever The front brake lever is located on the
right side of the handlebar. To apply the
front brake, pull this lever toward the
throttle grip.1. Front brake lever
U2ABE2E0.book Page 12 Thursday, August 30, 2012 2:36 PM
INSTRUMENT AND CONTROL FUNCTIONS
3-13
3
EAU12951
Rear brake lever The rear brake lever is located on the
left side of the handlebar. To apply the
rear brake, pull this lever toward the
handlebar grip.
EAU12995
ABS (for ABS models) The Yamaha ABS (Anti-lock Brake
System) features a dual electronic con-
trol system, which acts on the front and
rear brakes independently. The ABS
securely controls wheel lockup during
emergency braking on changing road
surfaces and under various weather
conditions, thereby maximizing tire ad-
hesion and performance while provid-
ing a smooth braking action. The ABS
is monitored by an ECU, which will
have recourse to manual braking if a
malfunction occurs.
WARNING
EWA10090
●
The ABS performs best on long
braking distances.
●
On certain (rough or gravel)
roads, the braking distance may
be longer with than without the
ABS. Therefore, always keep a
sufficient distance to the vehicle
ahead to match the riding
speed.
TIP●
The ABS performs a self-diagno-
sis test for a few seconds each
time the vehicle first starts off after
the key was turned to “ON”. During
this test, a “clicking” noise can be
heard from the front of the vehicle,
and if either brake lever is even
slightly applied, a vibration can be
felt at the lever, but these do not in-
dicate a malfunction.
●
When the ABS is activated, the
brakes are operated in the usual
way. A pulsating action may be felt
at the brake levers, but this does
not indicate a malfunction.
●
This ABS has a test mode which
allows the owner to experience the
pulsating at the brake levers when
the ABS is operating. However,
special tools are required, so
please consult your Yamaha deal-
er when performing this test.
NOTICE
ECA16120
Keep any type of magnets (including
magnetic pick-up tools, magnetic
screwdrivers, etc.) away from the
1. Rear brake lever
U2ABE2E0.book Page 13 Thursday, August 30, 2012 2:36 PM