engine YAMAHA MAJESTY S 125 2015 Owners Manual

TABLE OF CONTENTS SAFETY INFORMATION.................. 1-1
Further safe-riding points................. 1-5
DESCRIPTION ................................... 2-1
Left view .......................................... 2-1
Right view ........................................ 2-2
Controls and instrument s................. 2-3
INSTRUMENT AND CONTROL
FUNCTIONS ....................................... 3-1
Main switch/steering lock................. 3-1
Keyhole cover .................................. 3-2
Indicator lights and warning lights ... 3-2
Tachometer ..................................... 3-3
Fuel gauge....................................... 3-4
Multi-function display ....................... 3-4
Handlebar switches ......................... 3-6
Front brake lever ............................. 3-7
Rear brake lever .............................. 3-7
Fuel tank cap ................................... 3-8
Fuel.................................................. 3-8
Fuel tank breather hose and overflow hose ............................................. 3-9
Catalytic converter ......................... 3-10
Seat ............................................... 3-10
Passenger footrest ........................ 3-11
Helmet holder ................................ 3-11
Storage compartments .................. 3-12
Shock absorber assembly ............. 3-13
Luggage hook ................................ 3-14
Sidestand....................................... 3-14 Ignition circuit cut-
off system ......... 3-15
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 ......... 5-2
Braking ............................................ 5-3
Tips for reducing fuel consumption ................................ 5-3
Engine break-in ............................... 5-3
Parking ............................................ 5-4
PERIODIC MAINTENANCE AND
ADJUSTMENT ................................... 6-1
Owner’s tool kit................................ 6-2
Periodic maintenance chart for the
emission control system .............. 6-4
General maintenance and lubrication chart ............................................. 6-5
Removing and installing panels ...... 6-8
Checking the spark plug.................. 6-9
Engine oil and oil strainer .............. 6-10
Final transmission oil..................... 6-12
Coolant .......................................... 6-13
Air filter and V-belt case air filter elements .................................... 6-15 Checking the engine idling
speed............ ............................ .. 6-16
Checking the throttle grip free play ............................................. 6-17
Valve clearance ............................. 6-17
Tires ............................................... 6-17
Cast wheels ................................... 6-19
Checking the front and rear brake
lever free play ............................. 6-20
Checking the front and rear brake pads............................................ 6-20
Checking the brake fluid level ........ 6-21
Changing the brake fluid ............... 6-22
Checking and lubricating the cables ......................................... 6-22
Checking and lubricating the throttle grip and cable ............................. 6-22
Lubricating the front and rear brake levers .......................................... 6-23
Checking and lubricating the
centerstand and sidestand ......... 6-23
Checking the front fork................... 6-24
Checking the steering .................... 6-25
Checking the wheel bearings......... 6-25
Battery ........................................... 6-25
Replacing the fuses ....................... 6-27
Replacing the headlight bulb ......... 6-28
Tail/brake light ............................... 6-28
Front turn signal light ..................... 6-28
Replacing a rear turn signal light bulb............................................. 6-29



1-2
1
SAFETY INFORMATION
tice riding your scooter where
there is no traffic until you have
become thoroughly familiar with
the scooter and all of its con-
trols.

Many accidents have been caused
by error of the scooter operator. A
typical error made by the operator
is veering wide on a turn due to ex-
cessive speed or undercornering
(insufficient lean angle for the
speed).
Always obey the speed limit andnever travel faster than warrant-
ed by road and traffic conditions.
Always signal before turning or changing lanes. Make sure that
other motorists can see you.

The posture of the operator and
passenger is important for proper
control.
The operator should keep bothhands on the handlebar and
both feet on the operator foot-
rests during operation to main-
tain control of the scooter.
The passenger should always hold onto the operator, the seat
strap or grab bar, if equipped, with both hands and keep both
feet on the passenger footrests.
Never carry a passenger unless
he or she can firmly place both
feet on the passenger footrests.

Never ride under the influence of
alcohol or other drugs.

This scooter is designed for
on-road use only. It is not suitable
for off-road use.
Protective Apparel
The majority of fatalities from scooter
accidents are the result of head inju-
ries. The use of a safety helmet is the
single most critical factor in the preven-
tion or reduction of head injuries.

Always wear an approved helmet.

Wear a face shield or goggles.
Wind in your unprotected eyes
could contribute to an impairment
of vision that could delay seeing a
hazard.

The use of a jacket, substantial
shoes, trousers, gloves, etc., is ef-
fective in preventing or reducing
abrasions or lacerations.

Never wear loose-fitting clothes,
otherwise they could catch on the control levers or wheels and cause
injury or an accident.

Always wear protective clothing
that covers your legs, ankles, and
feet. The engine or exhaust sys-
tem become very hot during or af-
ter operation and can cause burns.

A passenger should also observe
the above precautions.
Avoid 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 pres-
ent even if you do not see or smell any
engine exhaust. Deadly levels of car-
bon monoxide can collect rapidly and
you can quickly be overcome and un-
able to save yourself. Also, deadly lev-
els 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-



1-3
SAFETY INFORMATION
1MENT.

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 ac cident, 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 rid-
ing. 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.

This vehicle is not designed to
pull a trailer or to be attached to
a sidecar.
Genuine Yamaha Accessories
Choosing accessories for your vehicle
is an important decision. Genuine
Yamaha accessories, which are avail-
able only from a Yamaha dealer, have
been designed, tested, and approved
by Yamaha for use on your vehicle.
Many companies with no connection to
Yamaha manufacture parts and acces-
sories or offer other modifications for
Yamaha vehicles. Yamaha is not in a
position to test the products that these
aftermarket companies produce.
Therefore, Yamaha can neither en-
dorse nor recommend the use of ac-
cessories not sold by Yamaha or
modifications not specifically recom-
mended by Yamaha, even if sold and
installed by a Yamaha dealer.
Maximum load: 160 kg (353 lb)



1-4
1
SAFETY INFORMATION
Aftermarket Parts, Accessories,
and Modifications
While you may find aftermarket prod-
ucts similar in design and quality to
genuine Yamaha accessories, recog-
nize that some aftermarket accessories
or modifications are not suitable be-
cause of potential safety hazards to you
or others. Installing aftermarket prod-
ucts or having other modifications per-
formed to your vehicle that change any
of the vehicle’s design or operation
characteristics can put you and others
at greater risk of serious injury or death.
You are responsible for injuries related
to changes in the vehicle.
Keep the following guidelines in mind,
as well as those provided under “Load-
ing” when mounting accessories.
Never install accessories or carry
cargo that would impair the perfor-
mance of your scooter. Carefully
inspect the accessory before using
it to make sure that it does not in
any way reduce ground clearance
or cornering clearance, limit sus-
pension travel, steering travel or
control operation, or obscure lights
or reflectors. Accessories fitted to the handle-
bar or the front fork area can
create instability due to improper
weight distribution or aerody-
namic changes. If accessories
are added to the handlebar or
front fork area, they must be as
lightweight as possible and
should be kept to a minimum.
Bulky or large accessories may seriously affect the stability of
the scooter due to aerodynamic
effects. Wind may attempt to lift
the scooter, or the scooter may
become unstable in cross
winds. These accessories may
also cause instability when
passing or being passed by
large vehicles.
Certain accessories can dis- place the operator from his or
her normal riding position. This
improper position limits the free-
dom of movement of the opera-
tor and may limit control ability,
therefore, such accessories are
not recommended.

Use caution when adding electri-
cal accessories. If electrical acces- sories exceed the capacity of the
scooter’s electrical system, an
electric failure could result, which
could cause a dangerous loss of
lights or engine power.
Aftermarket 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 6-17 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



3-1
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23
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8
9
INSTRUMENT AND CONTROL FUNCTIONS
EAU45441
Main switch/steering lockThe main switch/steering lock controls
the ignition and lighting systems, and is
used to lock the steering. The various
positions are described below.TIPThe main switch/steering lock is
equipped with a keyhole cover. (Seepage 3-2.)
EAU10551
ON
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.
TIPThe headlights come on automatically
when the engine is started and stay on
until the key is turned to “OFF”, even ifthe engine stalls.
EAU10662
OFF
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 inloss of control or an accident.
EAU10685
LOCK
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.
2. Push the key in from the “OFF” po- sition, and then turn it to “LOCK”
while still pushing it.
3. Remove the key.1. Push.
2. Turn.2
1



INSTRUMENT AND CONTROL FUNCTIONS
3-2
234
5
6
7
8
9
To unlock the steering
Push the key in, and then turn it to
“OFF” while still pushing it.
EAUT2112
Keyhole coverTo open the keyhole cover
Insert the key bow into the keyhole cov-
er receptacle as shown, and then turn
the key to the right to open the cover.
To close the keyhole cover
Push the keyhole cover lever inward
and the keyhole cover will close.
EAU49396
Indicator ligh
ts and warning
lights
EAU11031
Turn signal indicator lights “ ” and
“”
The corresponding indicator light flash-
es when the turn signal switch is
pushed to the left or right.
EAU11081
High beam indicator light “ ”
This indicator light comes on when the
high beam of the headlight is switched
on.
1. Push.
2. Turn.2
1
1. Key bow
2. Keyhole cover lever2
1
1. Engine trouble warning light “ ”
2. Turn signal indicator light “ ”
3. High beam indicator light “ ”
4. Coolant temperature warning light “ ”
1 23 4
2



INSTRUMENT AND CONTROL FUNCTIONS
3-3
1
23
4
5
6
7
8
9
EAU11447
Coolant temperature warning light
“”
This warning light comes on if the en-
gine overheats. If this occurs, stop the
engine immediately and allow the en-
gine to cool.
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.NOTICE
ECA10022
Do not continue to operate the en-gine if it is overheating.TIP
For radiator-fan-equipped vehi-
cles, the radiator fan(s) automati-
cally switch on or off according to
the coolant temperature in the ra-
diator.

If the engine overheats, see page
6-33 for further instructions.
EAUT1935
Engine trouble warning light “ ”
This warning light flashes or stays on if
an electrical circuit monitoring the en-
gine is not working correctly. If this oc-
curs, 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.
EAU11873
TachometerThe electric tachometer allows the rider
to monitor the engine speed and keep it
within the ideal power range.
When the key is turned to “ON”, the ta-
chometer needle will sweep once
across the r/min range and then return
to zero r/min in order to test the electri-
cal circuit.NOTICE
ECA10032
Do not operate the engine in the ta-
chometer red zone.Red zone: 9500 r/min and above1. Tachometer
2. Red zone
12



INSTRUMENT AND CONTROL FUNCTIONS
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9
EAUT4210
Fuel gaugeThe fuel gauge indicates the amount of
fuel in the fuel tank. The needle moves
towards “E” (Empty) as the fuel level
decreases. When the needle reaches
the red zone, refuel as soon as possi-
ble.
When the key is turned to “ON”, the fuel
gauge needle will sweep once to test
the electrical circuit.
EAUT4230
Multi-function display
WARNING
EWA14432
Be sure to stop the vehicle before
making any setting changes to the
multi-function display. Changing
settings while riding can distract the
operator and increase the risk of anaccident.
The multi-function display is equippedwith the following:

a speedometer

an odometer

a tripmeter (which shows the dis-
tance traveled since it was last set
to zero)

an oil change tripmeter (which
shows the distanc
e traveled since
the last engine oil change)

an oil change indicator (which
flashes when the engine oil should
be changed)

a clock
TIPBe sure to turn the key to “ON” before
using the “SELECT” and “RESET” but-tons.
Odometer, tripmeter and oil change
tripmeter modes
Pushing the “SELECT” button switches
the display among the odometer mode
“ODO”, the tripmeter mode “TRIP” and
the oil change tripmeter “OIL
CHANGE” in the following order:
ODO → TRIP → OIL CHANGE →
ODO
1. Fuel gauge
2. Red zone
1
2
1. Select button
2. Reset button
3. Odometer
4. Oil change tripmeter
5. Tripmeter
6. Speedometer
7. Clock
12
3
4
5
67



INSTRUMENT AND CONTROL FUNCTIONS
3-5
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9
TIPIf the odometer, tripmeter, or oil change
tripmeter indicates “-----”, have a Yama-
ha dealer check the multi-function dis-play.
OdometerTIPFor the U.K.: The odometer and tripme-
ter units can be switched from kilome-
ters to miles by pushing the “SELECT”button for 1 second.
Tripmeter
To reset the tripmeter, select it by push-
ing the “SELECT” button until “TRIP” isdisplayed, and then push the “RESET”
button for 1 second.
Oil change tripmeter
To reset the oil change tripmeter, select
it by pushing the “SELECT” button until
the oil change tripmeter is displayed,
and then push the “RESET” button for
3 seconds.
Push the “SELECT” button again to
start the oil change tripmeter; the dis-
play changes to the ODO mode.
Oil change indicator “OIL
CHANGE”
This indicator flashes at the initial 1000
km (600 mi), then at every 3000 km
(1800 mi) thereafter to indicate that the
engine oil should be changed.
After changing the engine oil, reset the
oil change tripmeter.
If the engine oil is changed before the
oil change indicator flashes (i.e. before
the periodic oil change interval has
been reached), the oil change tripmeter
must be reset after the oil change for
the next periodic oil change to be indi-
cated at the correct time.1. Odometer
1
1. Tripmeter
1
1. Oil change tripmeter
1



INSTRUMENT AND CONTROL FUNCTIONS
3-7
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9
EAU12361
Pass switch “PASS”
Press this switch to flash the headlight.
EAU12401
Dimmer switch “ / ”
Set this switch to “ ” for the high
beam and to “ ” for the low beam.
EAU12461
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.
EAU12501
Horn switch “ ”
Press this switch to sound the horn.
EAUM1133
Start switch “ ”
Push this switch while applying the
front or rear brake to crank the engine
with the starter. See page 5-1 for start-
ing instructions prior to starting the en-
gine.
EAU12902
Front brake leverThe front brake lever is located on the
right side of the handlebar. To apply the
front brake, pull this lever toward the
throttle grip.
EAU12952
Rear brake leverThe rear brake lever is located on the
left side of the handlebar. To apply the
rear brake, pull this lever toward the
handlebar grip.
1. Front brake lever
1
1. Rear brake lever
1