2011 YAMAHA MAJESTY 400 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 instruments..................2-3
INSTRUMENT AND CONTROL
FUNCTIONS
........................................3-1
Immobilizer system ..........................3-1
Main switch/steering lock .................3-2
Indicator and warning lights .............3-3
Speedometer ...................................3-5
Tachometer .....................................3-5
Multi-function display .......................3-5
Anti-theft alarm (optional) ................3-9
Handlebar switches .......................3-10
Front brake lever ...........................3-11
Rear brake lever ............................3-12
Rear brake lock lever .....................3-12
ABS (for ABS models) ...................3-13
Fuel tank cap .................................3-14
Fuel ................................................3-15
Catalytic converters .......................3-16
Seats .............................................3-17
Adjusting the rider seat ..................3-18
Storage compartments ..................3-19
Adjusting the shock absorber
assemblies .................................3-21
Sidestand .......................................3-21Ignition circuit cut-off system ......... 3-22
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 ............................... 5-4
Parking ............................................ 5-4
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
cowlings and panels .................... 6-7
Checking the spark plug ................ 6-10
Engine oil and oil filter element ..... 6-12
Final transmission oil ..................... 6-15
Coolant .......................................... 6-16Air filter elements and check
hoses and V-belt case air
filter element .............................. 6-17
Checking the throttle grip free
play ............................................ 6-20
Valve clearance ............................ 6-20
Tires .............................................. 6-21
Cast wheels .................................. 6-22
Checking the front and rear
brake lever free play .................. 6-23
Adjusting the rear brake lock
lever cable ................................. 6-24
Checking the front and rear
brake pads ................................. 6-24
Checking the brake fluid level ....... 6-25
Changing the brake fluid ............... 6-26
Checking and lubricating the
cables ........................................ 6-26
Checking and lubricating the
throttle grip and cable ................ 6-27
Lubricating the front and rear
brake levers ............................... 6-27
Checking and lubricating the
centerstand and sidestand ........ 6-28
Checking the front fork .................. 6-28
Checking the steering ................... 6-29
Checking the wheel bearings ........ 6-29
Battery ........................................... 6-30
Replacing the fuses ...................... 6-31
Replacing a headlight bulb ........... 6-33
Tail/brake light ............................... 6-33
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1-2
1
SAFETY INFORMATION
• Always obey the speed limit and
never 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 both
hands 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
present even if you do not see or smell
any engine exhaust. Deadly levels of
carbon monoxide can collect rapidly
and you can quickly be overcome and
unable to save yourself. Also, deadly
levels 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-
MENT.

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-
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1-3
1
SAFETY INFORMATION
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 accident, 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
riding. 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.
Aftermarket Parts, Accessories,
and Modifications
While you may find aftermarket prod-
ucts similar in design and quality to

Maximum load:
YP400 188 kg (414 lb)
YP400A 185 kg (408 lb)
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1-4
1
SAFETY INFORMATION
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 improperweight 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, anelectric 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 6-21 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
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2-1
1
2

DESCRIPTION
EAU10410
Left view
10 1
2
3
5
67
8
4
11
9

1. Headlight (page 6-33)
2. Fuel tank cap (page 3-14)
3. Rear storage compartment (page 3-19)
4. V-belt case air filter element (page 6-17)
5. Owner’s tool kit (page 6-2)
6. Fuses (page 6-31)
7. Battery (page 6-30)8. Shock absorber assembly spring preload adjusting ring (page 3-21)
9. Air filter element (left) (page 6-17)
10.Engine oil filter element (page 6-12)
11.Sidestand (page 3-21)
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INSTRUMENT AND CONTROL FUNCTIONS
3-2
2
34
5
6
7
8
9 switch as they may cause signal

interference.
EAU10472
Main switch/steering lock
The main switch/steering lock controls
the ignition and lighting systems, and is
used to lock the steering. The various
positions are described below.
TIP

Be sure to use the standard key (black
bow) for regular use of the vehicle. To
minimize the risk of losing the code
re-registering key (red bow), keep it in a
safe place and only use it for code
re-registering.
EAU34121
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.
TIP

The headlights come on automatically
when the engine is started and stay on
until the key is turned to “OFF” or the
sidestand is moved down.
EAU10661
OFF
All electrical systems are off. The key
can be removed.
WARNING

EWA10061
Never turn the key to “OFF” or
“LOCK” while the vehicle is moving.
Otherwise the electrical systems will
be switched off, which may result in
loss of control or an accident.
EAU10683
LOCK
The steering is locked, and all electrical
systems are off. The key can be re-
moved.
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INSTRUMENT AND CONTROL FUNCTIONS
3-3
1
2
3
4
5
6
7
8
9
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.
To unlock the steeringPush the key in, and then turn it to
“OFF” while still pushing it.

EAU10941
(Parking)
The steering is locked, and the taillight,
license plate light and auxiliary lights
are on. The hazard lights and turn sig-
nal lights can be turned on, but all other
electrical systems are off. The key can
be removed.
The steering must be locked before the
key can be turned to “ ”.
NOTICE

ECA11020
Do not use the parking position for
an extended length of time, other-
wise the battery may discharge.
EAU11004
Indicator 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 switchedon.
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.
TIP

This 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.
1. Turn signal indicator lights “ ” and “ ”
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)
123
4
5
ABS
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INSTRUMENT AND CONTROL FUNCTIONS
3-4
2
34
5
6
7
8
9

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-
ing. Therefore, be careful not tocause the wheel to lock during emer-
gency braking.
TIP

The ABS warning light may come on
while accelerating the engine with the
scooter on its centerstand, but this
does not indicate a malfunction.
EAU38624
Immobilizer system indicator light
The electrical circuit of the indicator
light can be checked by turning the key
to “ON”. The indicator light should
come on for a few seconds, and then
go off.
If the indicator light does not come on
initially when the key is turned to “ON”,
or if the indicator light remains on, have
a Yamaha dealer check the electrical
circuit.
When the key is turned to “OFF” and
30 seconds have passed, the indicator
light will start flashing indicating the
immobilizer system is enabled. After
24 hours have passed, the indicator
light will stop flashing, however the im-
mobilizer system is still enabled.
The self-diagnosis device also detectsproblems in the immobilizer system cir-
cuits. (See page 3-8 for an explanation
of the self-diagnosis device.)
ABS
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