2015 YAMAHA MAJESTY S 125 service

INSTRUMENT AND CONTROL FUNCTIONS
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
Since the storage compartment
accumulates heat when ex-
posed to the sun and/or the en-
gine heat, do not store anything
susceptible to heat, consum-
ables or flammable items inside
it.

To avoid humidity from spread-
ing through the storage com-
partment, wrap wet articles in a
plastic bag before storing them
in the compartment.

Since the storage compartment
may get wet while the scooter is
being washed, wrap any articles
stored in the compartment in a
plastic bag.

Do not keep anything valuable
or breakable in the storage com-partment.
TIPDo not leave your scooter unattendedwith the seat open.
EAU46023
Shock absorber assembly
WARNING
EWA10222
This shock absorber assembly con-
tains highly pressurized nitrogen
gas. Read and understand the fol-
lowing information before handling
the shock absorber assembly.
Do not tamper with or attempt to
open the cylinder assembly.

Do not subject the shock ab-
sorber assembly to an open
flame or other high heat source.
This may cause the unit to ex-
plode due to excessive gas
pressure.

Do not deform or damage thecylinder in any way. Cylinder
damage will result in poor
damping performance.

Do not dispose of a damaged or
worn-out shock absorber as-
sembly yourself. Take the shock
absorber assembly to a Yamahadealer for any service.
1. Shock absorber assembly
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PERIODIC MAINTENANCE AND ADJUSTMENT
EAUS1824
Periodic inspection, adjustment, and lu-
brication will keep your vehicle in the
safest and most efficient condition pos-
sible. Safety is an obligation of the vehi-
cle owner/operator. The most important
points of vehicle inspection, adjust-
ment, and lubrication are explained on
the following pages.
The intervals given in the periodic
maintenance charts should be simply
considered as a general guide under
normal riding conditions. However, de-
pending on the weather, terrain, geo-
graphical location, and individual use,
the maintenance intervals may need to
be shortened.
WARNING
EWA10322
Failure to properly maintain the ve-
hicle or performing maintenance ac-
tivities incorrectly may increase
your risk of injury or death during
service or while using the vehicle. If
you are not familiar with vehicle ser-
vice, have a Yamaha dealer performservice.
WARNING
EWA15123
Turn off the engine when performing
maintenance unless otherwise
specified.
A running engine has moving
parts that can catch on body
parts or clothing and electrical
parts that can cause shocks or
fires.

Running the engine while ser-
vicing can lead to eye injury,
burns, fire, or carbon monoxide
poisoning – possibly leading to
death. See page 1-2 for more in-
formation about carbon monox-ide.WARNING
EWA10331
This scooter is designed for use on
paved roads only. If this scooter is
operated in abnormally dusty, mud-
dy or wet conditions, the air filter el-
ement should be cleaned or
replaced more frequently, otherwise
rapid engine wear may result. Con-
sult a Yamaha dealer for propermaintenance intervals.
WARNING
EWA15461
Brake discs, calipers, drums, and
linings can become very hot during
use. To avoid possible burns, let
brake components cool beforetouching them.



PERIODIC MAINTENANCE AND ADJUSTMENT
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EAU17303
Emission controls not only function to
ensure cleaner air, but are also vital to
proper engine operation and maximum
performance. In the following periodic
maintenance charts, the services relat-
ed to emissions control are grouped
separately. These services require
specialized data, knowledge, and
equipment. Maintenance, replacement,
or repair of the emission control devic-
es and systems may be performed by
any repair establishment or individual
that is certified (if applicable). Yamaha
dealers are trained and equipped to
perform these particular services.
EAU17522
Owner’s tool kitThe owner’s tool kit is located inside the
storage compartment under the seat.
(See page 3-10.)
The service information included in this
manual and the tools provided in the
owner’s tool kit are intended to assist
you in the performance of preventive
maintenance and minor repairs. How-
ever, additional tools such as a torque
wrench may be necessary to perform
certain maintenance work correctly.TIPIf you do not have the tools or experi-
ence required for a particular job, havea Yamaha dealer perform it for you.1. Owner’s tool kit
1



PERIODIC MAINTENANCE AND ADJUSTMENT
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EAUT2711
TIP
Air filter and V-belt filter
This model’s air filter is equipped with a disposable oil-coated paper elemen t, which must not be cleaned with com-
pressed air to avoid damaging it.
The air filter element needs to be replaced and V-belt filter needs to be serviced more frequently when riding in un- usually wet or dusty areas.

Hydraulic brake service
After disassembling the brake master cylinder and caliper , always change the fluid. Regularly check the brake fluid
level and fill the reservoir as required.
Every two years replace the internal components of the brake master cylinder and caliper, and change the brake fluid. Replace the brake hose every four years and if cracked or damaged.
25 * Front and rear brake
switches Check operation.
√√√√√√
26 Moving parts and
cables Lubricate.
√√√√√
27 * Throttle grip Check operation.
Check throttle grip free play, and
adjust if necessary.
Lubricate cable and grip housing. √√√√√
28 * Lights, signals and
switches Check operation.
Adjust headlight beam.
√√√√√√
NO. ITEM CHECK OR MAINTENANCE JOB
ODOMETER READING
ANNUAL
CHECK
1000 km
(600 mi) 6000 km
(3500 mi) 12000 km
(7000 mi) 18000 km
(10500 mi) 24000 km
(14000 mi)


PERIODIC MAINTENANCE AND ADJUSTMENT
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EAUT4110
Replacing a license plate light
bulb1. Remove the license plate light bulbsocket (together with the bulb) by
turning it counterclockwise, and
then pulling it out.
2. Remove the burnt-out bulb by pull- ing it out.
3. Insert a new bulb into the socket.
4. Install the socket (together with the bulb) by pushing it in, and then turn
it clockwise until it stops.
EAU54501
Auxiliary lightThis model is equipped with LED-type
auxiliary lights.
If an auxiliary light does not come on,
have a Yamaha dealer check it.
EAU25882
TroubleshootingAlthough Yamaha scooters receive a
thorough inspection before shipment
from the factory, trouble may occur dur-
ing operation. Any problem in the fuel,
compression, or ignition systems, for
example, can cause poor starting and
loss of power.
The following troubleshooting charts
represent quick and easy procedures
for checking these vital systems your-
self. However, should your scooter re-
quire any repair, take it to a Yamaha
dealer, whose skilled technicians have
the necessary tools, experience, and
know-how to service the scooter prop-
erly.
Use only genuine Yamaha replace-
ment parts. Imitation parts may look like
Yamaha parts, but they are often inferi-
or, have a shorter service life and can
lead to expensive repair bills.
WARNING
EWA15142
When checking the fuel system, do
not smoke, and make sure there are
no open flames or sparks in the ar-
ea, including pilot lights from water
1. License plate light bulb socket
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789
SPECIFICATIONS
EAU5091K
Dimensions:Overall length:2030 mm (79.9 in)
Overall width: 715 mm (28.1 in)
Overall height: 1295 mm (51.0 in)
Seat height:
795 mm (31.3 in)
Wheelbase: 1405 mm (55.3 in)
Ground clearance: 93 mm (3.66 in)
Minimum turning radius:
2100 mm (82.7 in)Weight:Curb weight:148 kg (326 lb)Engine:Engine type:Liquid cooled 4-stroke, SOHC
Cylinder arrangement: Single cylinder
Displacement:
125 cm
3
Bore × stroke:
52.0 × 58.7 mm (2.05 × 2.31 in)
Compression ratio: 11.0 : 1
Starting system:
Electric starter
Lubrication system: Wet sump
Engine oil:Type:
SAE 10W-40
Recommended engine oil grade: API service SG type or higher, JASO stan-
dard MA or MB
*Engine oil quantity: Periodic oil change:
0.95 L (1.00 US qt, 0.84 Imp.qt)Final transmission oil:Type:SAE 10W-30 type SE motor oil
Quantity:
0.20 L (0.21 US qt, 0.18 Imp.qt)Cooling system:Coolant reservoir capacity (up to the maxi-
mum level mark):0.25 L (0.26 US qt, 0.22 Imp.qt)
Radiator capacity (including all routes): 0.56 L (0.59 US qt, 0.49 Imp.qt)
Air filter:Air filter element:Oil-coated paper elementFuel:Recommended fuel:Regular unleaded gasoline
Fuel tank capacity:
7.4 L (1.96 US gal, 1.63 Imp.gal)Fuel injection:*Throttle body:ID mark:52S1 01Spark plug(s):Manufacturer/model:
NGK / CPR8EA
Spark plug gap: 0.8–0.9 mm (0.031–0.035 in)Clutch:Clutch type:
Dry, centrifugal automaticTransmission:Primary reduction ratio:1.000
Final drive:
Gear
Secondary reduction ratio: 8.787 (45 / 13 × 33 / 13)
Transmission type: V-belt automaticChassis:Frame type:Backbone
Caster angle: 26.00 °
–20 –10 0 1020 30 40 50 C
10 30 50 70 90 110
0 130 F
SAE 10W-30
SAE 15W-40SAE 20W-40SAE 20W-50
SAE 10W-40SAE 10W-50