2015 YAMAHA MAJESTY S 125 check engine

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



1-3
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)



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
3-5
1
23
4
5
6
7
8
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
3-9
1
23
4
5
6
7
8
93. Wipe up any spilled fuel immedi-
ately. NOTICE: Immediately wipe
off spilled fuel with a clean, dry,
soft cloth, since fuel may deteri-
orate painted surfaces or plastic
parts.
[ECA10072]
4. Be sure to securely close the fuel tank cap.
WARNING
EWA15152
Gasoline is poisonous and can
cause injury or death. Handle gaso-
line with care. Never siphon gaso-
line by mouth. If you should swallow
some gasoline or inhale a lot of gas-
oline vapor, or get some gasoline in your eyes, see your doctor immedi-
ately. If gasoline spills on your skin,
wash with soap and water. If gaso-
line spills on your clothing, change
your clothes.
EAU33523
NOTICE
ECA11401
Use only unleaded gasoline. The use
of leaded gasoline will cause severe
damage to internal engine parts,
such as the valves and piston rings,as well as to the exhaust system.
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) oc-
curs, use a gasoline of a different brand
or premium unleaded fuel. Use of un-
leaded fuel will extend spark plug life
and reduce maintenance costs.
EAUT4250
Fuel tank breather hose and
overflow hoseBefore operating the vehicle:
Check each hose connection.

Check each hose for cracks or
damage, and replace if necessary.

Make sure that the end of the hose
is not blocked, and clean if neces-
sary.

Make sure that the end of the hose
is positioned into the hole of the
cowling.
1. Fuel tank filler tube
2. Maximum fuel level
1
2
Recommended fuel:
Regular unleaded gasoline
Fuel tank capacity: 7.4 L (1.96 US gal, 1.63 Imp.gal)
1. Fuel tank breather hose
2. Fuel tank overflow hose
12



INSTRUMENT AND CONTROL FUNCTIONS
3-16
234
5
6
7
8
9
Turn the key on.
Put the sidestand up.Push the start switch while applying
either of the brake levers. The engine will
start.Put the sidestand down.
If the engine stalls:
The sidestand switch is OK.
• The vehicle must be placed on the center-
stand during this inspection.• If a malfunction is noted, have a Yamaha
dealer check the system before riding.
WARNING



4-1
1
2
34
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8
9
FOR YOUR SAFETY – PRE-OPERATION CHECKS
EAU15598
Inspect your vehicle each time you use it to make sure the vehicle is in safe operating condition. Always follow the inspection
and maintenance procedures and schedules described in the Owner’s Manual.
WARNING
EWA11152
Failure to inspect or maintain the vehicle properly increases the possibility of an accident or equipment damage.
Do not operate the vehicle if you find any problem. If a problem cannot be corrected by the procedures provided inthis manual, have the vehicle inspected by a Yamaha dealer.
Before using this vehicle, check the following points:
ITEM CHECKS PAGE
Fuel Check fuel level in fuel tank.
Refuel if necessary.
Check fuel line for leakage.
Check fuel tank breather hose and overflow hose for obstructions, cracks or
damage, and check hose connections. 3-8, 3-9
Engine oil Check oil level in engine.
If necessary, add recommended oil to specified level.
Check vehicle for oil leakage. 6-10
Final transmission oil Check vehicle for oil leakage. 6-12
Coolant Check coolant level in reservoir.
If necessary, add recommended coolant to specified level.
Check cooling system for leakage. 6-13
Front brake Check operation.
If soft or spongy, have Yamaha dealer bleed hydraulic system.
Check brake pads for wear.
Replace if necessary.
Check fluid level in reservoir.
If necessary, add specified brake fluid to specified level.
Check hydraulic system for leakage. 6-20, 6-21



5-1
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3
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8
9
OPERATION AND IMPORTANT RIDING POINTS
EAU15952
Read the Owner’s Manual carefully to
become familiar with all controls. If
there is a control or function you do not
understand, ask your Yamaha dealer.
WARNING
EWA10272
Failure to familiarize yourself with
the controls can lead to loss of con-
trol, which could cause an accidentor injury.
EAU45311
TIPThis model is equipped with a lean an-
gle sensor to stop the engine in case of
a turnover. To start the engine after a
turnover, be sure to turn the main
switch to “OFF” and then to “ON”. Fail-
ing to do so will prevent the engine from
starting even though the engine willcrank when pushing the start switch.
EAUT3681
Starting the engineNOTICE
ECA10251
See page 5-3 for engine break-in in-
structions prior to operating the ve-hicle for the first time.1. Turn the key to “ON”. The engine trouble warning light
and coolant temperature warning
light should come on for a few sec-
onds, then go off. NOTICE: If a
warning light does not go off,
have a Yamaha dealer check its
electrical circuit.
[ECAT1171]
2. Close the throttle completely.
3. Start the engine by pushing the start switch while applying the front
or rear brake. NOTICE
ECA11042
For maximum engine life, never ac-
celerate hard when the engine iscold!
If the engine does not start, re-
lease the start switch, wait a few
seconds, and then try again. Each
starting attempt should be as short