engine YAMAHA MAJESTY 125 2007 User Guide

EAUB1300
Fuel tank breather/overflow
hose
Before operating the motorcycle:
Check the fuel tank
breather/overflow hose connec-
tion.
Check the fuel tank
breather/overflow hose for
cracks or damage, and replace it
if damaged.
Make sure that the end of the fuel
tank breather/overflow hose is
not blocked, and clean it if
necessary.
Make sure that the end of the fuel
tank breather/overflow hose is
positioned inside of the clamp.
1. Fuel tank breather/overflow hose
EAU13431
Catalytic converter
This model is equipped with a cataly-
tic converter in the exhaust system.
EWA10860
s s
WARNING
The exhaust system is hot after
operation. Make sure that the
exhaust system has cooled down
before doing any maintenance
work.
ECA10700
CAUTION:
The following precautions must be
observed to prevent a fire hazard or
other damages.
Use only unleaded gasoline.
The use of leaded gasoline will
cause unrepairable damage to
the catalytic converter.
Never park the vehicle near
possible fire hazards such as
grass or other materials that
easily burn.
Do not allow the engine to idle
too long.
EAU13891
Seat
To open the seat
1. Open
1. Insert the key in the lock, and
then turn it as shown.
1. Rider seat
2. Fold the seat up.
1
1
1
3
INSTRUMENT AND CONTROL FUNCTIONS
3-9
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EWA10240
s s
WARNING
The vehicle must not be ridden with
the sidestand down, or if the sides-
tand cannot be properly moved up
(or does not stay up), otherwise the
sidestand could contact the ground
and distract the operator, resulting
in a possible loss of control. Yama-
ha’s ignition circuit cut-off system
has been designed to assist the
operator in fulfilling the responsibi-
lity of raising the sidestand before
starting off. Therefore, check this
system regularly as described
below and have a Yamaha dealer
repair it if it does not function pro-
perly.
EAU15361
Ignition circuit cut-off
system
The ignition circuit cut-off system
(comprising the sidestand switch and
brake light switches) has the following
functions.
It prevents starting when the
sidestand is up, but neither brake
is applied.
It prevents starting when either
brake is applied, but the sides-
tand is still down.
It cuts the running engine when
the sidestand is moved down.
Periodically check the operation of
the ignition circuit cut-off system
according to the following procedure.
EWA10260
s s
WARNING
The vehicle must be placed on
the centerstand during this ins-
pection.
If a malfunction is noted, have
a Yamaha dealer check the
system before riding.
3
INSTRUMENT AND CONTROL FUNCTIONS
3-13
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3
INSTRUMENT AND CONTROL FUNCTIONS
3-14
With the engine turned off:
1. Move the sidestand down.
2. Make sure that the engine stop switch is turned on.
3. Turn the key on.
4. Keep the front or rear brake applied.
5. Push the start switch.
Does the engine start?
With the engine still off:
6. Move the sidestand up.
7. Keep the front or rear brake applied.
8. Push the start switch.
Does the engine start?
With the engine still running:
9. Move the sidestand down.
Does the engine stall?
The system is OK. The scooter can be ridden.
This check is most reliable if performed with
a warmed-up engine.
The sidestand switch may be defective.
The scooter should not be ridden until
checked by a Yamaha dealer.
The brake switch may be defective.
The scooter should not be ridden until
checked by a Yamaha dealer.
The sidestand switch may be defective.
The scooter should not be ridden until
checked by a Yamaha dealer.
YES NO YES NO NO YESNOTE:
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4
PRE-OPERATION CHECKS
4-2
EAU15605
Pre-operation check list
ITEM CHECKS PAGE
• Check fuel level in fuel tank.
Fuel• Refuel if necessary. 3-3, 3-7
• Check fuel line for leakage.
• Check oil level in engine.
Engine oil• If necessary, add recommended oil to specified level. 3-2, 6-9
• Check vehicle for oil leakage.
Final transmission oil• Check vehicle for oil leakage. 6-11
• Check coolant level in reservoir.
Coolant• If necessary, add recommended coolant to specified level. 3-2, 6-12
• Check cooling system for leakage.
• Check operation.
• If soft or spongy, have Yamaha dealer bleed hydraulic system.
• Check brake pads for wear.
Front brake• Replace if necessary. 3-6, 6-19, 6-20, 6-21
• Check fluid level in reservoir.
• If necessary, add recommended brake fluid to specified level.
• Check hydraulic system for leakage.
• Check operation.
• If soft or spongy, have Yamaha dealer bleed hydraulic system.
• Check brake pads for wear.
Rear brake• Replace if necessary. 3-6, 6-19, 6-20, 6-21
• Check fluid level in reservoir.
• If necessary, add recommended brake fluid to specified level.
• Check hydraulic system for leakage.
• Make sure that operation is smooth.
Throttle grip• Check cable free play.
5-2, 6-15
• If necessary, have Yamaha dealer adjust cable free play and
lubricate cable and grip housing.
• Check for damage.
Wheels and tires• Check tire condition and tread depth.
6-16, 6-18
• Check air pressure.
• Correct if necessary.
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EAU15980
EWA10870
s s
WARNING
Become thoroughly familiar
with all operating controls and
their functions before riding.
Consult a Yamaha dealer
regarding any control or func-
tion that you do not thoroughly
understand.
Never start the engine or ope-
rate it in a closed area for any
length of time. Exhaust fumes
are poisonous, and inhaling
them can cause loss of cons-
ciousness and death within a
short time. Always make sure
that there is adequate ventila-
tion.
For safety, always start the
engine with the centerstand
down.
EAUM1210
Starting a cold engine
ECA10250
CAUTION:
See page 5-3 for engine break-in
instructions prior to operating the
vehicle for the first time.
1. Turn the key to “f”.
2. Close the throttle completely.
3. Start the engine by pushing the
start switch while applying the
front or rear brake.
NOTE:
If the engine fails to start, release the
start switch, wait a few seconds, and
then try again. Each starting attempt
should be as short as possible to pre-
serve the battery. Do not crank theengine more than 10 seconds on any
one attempt.
ECA11040
CAUTION:
For maximum engine life, never
accelerate hard when the engine is
cold!
5
OPERATION AND IMPORTANT RIDING POINTS
5-1
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EAU16760
Starting off
1. Grab bar
NOTE:
Before starting off, allow the engine to
warm up.
1. While pulling the rear brake lever
with your left hand and holding
the grab bar with your right hand,
push the scooter off the centers-
tand.
2. Sit astride the seat, and then
adjust the rear view mirrors.
3. Switch the turn signal on.
4. Check for oncoming traffic, and
then slowly turn the throttle grip
(on the right) in order to take off.
5. Switch the turn signal off.
EAU16780
Acceleration and
deceleration
The speed can be adjusted by ope-
ning and closing the throttle. To incre-
ase the speed, turn the throttle grip in
direction (a). To reduce the speed,
turn the throttle grip in direction (b).
EAU16791
Braking
1. Close the throttle completely.
2. Apply both front and rear brakes
simultaneously while gradually
increasing the pressure.
EWA10300
s s
WARNING
Avoid braking hard or suddenly
(especially when leaning over
to one side), otherwise the sco-
oter may skid or overturn.
Railroad crossings, streetcar
rails, iron plates on road cons-
truction sites, and manhole
covers become extremely slip-
pery when wet. Therefore, slow
down when approaching such
1
5
OPERATION AND IMPORTANT RIDING POINTS
5-2
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areas and cross them with cau-
tion.
Keep in mind that braking on a
wet road is much more difficult.
Ride slowly down a hill, as bra-
king downhill can be very diffi-
cult.
EAU16820
Tips for reducing fuel
consumption
Fuel consumption depends largely on
your riding style. Consider the follo-
wing tips to reduce fuel consumption:
Avoid high engine speeds during
acceleration.
Avoid high engine speeds with no
load on the engine.
Turn the engine off instead of let-
ting it idle for an extended length
of time (e.g., in traffic jams, at
traffic lights or at railroad cros-
sings).
EAU16830
Engine break-in
There is never a more important
period in the life of your engine than
the period between 0 and 1000 km
(600 mi). For this reason, you should
read the following material carefully.
Since the engine is brand new, do not
put an excessive load on it for the first
1000 km (600 mi). The various parts in
the engine wear and polish themsel-
ves to the correct operating clearan-
ces. During this period, prolonged
full-throttle operation or any condition
that might result in engine overhea-
ting must be avoided.
EAU16950
0 ~ 150 km (0 ~ 90 mi)
Avoid prolonged operation above 1/3
throttle.
After every hour of operation, stop the
engine, and then let it cool for five to
ten minutes.
Vary the engine speed from time to
time. Do not operate the engine at
one set throttle position.
5
OPERATION AND IMPORTANT RIDING POINTS
5-3
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150 ~ 500 km (90 ~ 300 mi)
Avoid prolonged operation above 1/2
throttle.
Rev the engine freely through the
gears, but do not use full throttle at
any time.
500 ~ 1000 km (300 ~ 600 mi)
Avoid prolonged operation above 3/4
throttle.
ECA10350
CAUTION:
After 1000 km (600 mi) of operation,
the engine oil must be changed and
the oil strainer cleaned.
1000 km (600 mi) and beyond
Avoid prolonged full-throttle opera-
tion. Vary the speed occasionally.
ECA10270
CAUTION:
If any engine trouble should occur
during the engine break-in period,
immediately have a Yamaha dealer
check the vehicle.
EAU17200
Parking
When parking, stop the engine, and
then remove the key from the main
switch.
EWA10310
s s
WARNING
Since the engine and exhaust
system can become very hot,
park in a place where pedes-
trians or children are not likely
to touch them.
Do not park on a slope or on
soft ground, otherwise the
vehicle may overturn.5
OPERATION AND IMPORTANT RIDING POINTS
5-4
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EAU17280
Safety is an obligation of the owner.
Periodic inspection, adjustment and
lubrication will keep your vehicle in
the safest and most efficient condi-
tion possible. The most important
points of inspection, adjustment, and
lubrication are explained on the follo-
wing pages.
The intervals given in the periodic
maintenance and lubrication chart
should be simply considered as a
general guide under normal riding
conditions. However, DEPENDING
ON THE WEATHER, TERRAIN, GEO-
GRAPHICAL LOCATION, AND INDIVI-
DUAL USE, THE MAINTENANCE
INTERVALS MAY NEED TO BE
SHORTENED.
EWA10320
s s
WARNING
If you are not familiar with mainte-
nance work, have a Yamaha dealer
do it for you.
EWA10330
s s
WARNING
This scooter is designed for use on
paved roads only. If this scooter is
operated in abnormally dusty,
muddy or wet conditions, the air fil-
ter element should be cleaned or
replaced more frequently, otherwi-
se rapid engine wear may result.
Consult a Yamaha dealer for proper
maintenance intervals.
EAU17450
Owner’s tool kit
1. Owner's tool kit
The owner’s tool kit is located inside the
storage compartment. (See page 3-11.)
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 pre-
ventive maintenance and minor
repairs. However, additional tools
such as a torque wrench may be
necessary to perform certain mainte-
nance work correctly.
1
6
PERIODIC MAINTENANCE AND MINOR REPAIR
6-1
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ODOMETER READING (x 1000 Km)
ANNUAL
NO. ITEM CHECK OR MAINTENANCE JOB
1 6 12 18 24CHECK
8*Rear brake• Check operation, fluid level and vehicle for fluid leakage.√√ √ √√ √• Replace brake pads. Whenever worn to the limit
9*Brake hoses• Check for cracks or damage.√√√√ √• Replace. Every 4 years
10 *Wheels• Check runout and for damage.√√√√
• Check tread depth and for damage.
11 *Tires• Replace if necessary.
√√√√ √
• Check air pressure.
• Correct if necessary.
12 *Wheel bearings• Check bearing for looseness or damage.√√√√
13 *Steering bearings• Check bearing play and steering for roughness.√√ √ √√• Lubricate with lithium-soap-based grease. Every 20000 km
14 *Chassis fasteners• Make sure that all nuts, bolts and screws are properly
tightened.√√√√ √
15Sidestand, centerstand• Check operation.
• Lubricate.√√√√ √
16 *Sidestand switch• Check operation.√√ √ √√ √
17 *Front fork• Check operation and for oil leakage.√√√√
18 *Shock absorber
• Check operation and shock absorbers for oil leakage.√√√√
assemblies
19 *Carburetor• Adjust engine idling speed.√√ √ √√ √
• Change. (See page 6-9.)√When the oil change indicator light
20Engine oilcomes on (every 3000 km)
• Check oil level and vehicle for oil leakage. Every 3000 km√
21 *Engine oil strainer• Clean.√√√
6
PERIODIC MAINTENANCE AND MINOR REPAIR
6-4
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