2010 YAMAHA MAJESTY 400 Owners Manual

INSTRUMENT AND CONTROL FUNCTIONS
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To close the rider seat
1. Fold the rider seat down, and then
push it down to lock it in place.
2. Remove the key from the main
switch if the scooter will be left un-
attended.TIP

Make sure that the rider seat is properly
secured before riding.
Passenger seat
To remove the passenger seat
1. Open the rider seat.
2. Remove the bolt, and then pull the
passenger seat forward.To install the passenger seat
1. Insert the projections on the pas-
senger seat into the holders as
shown, place the passenger seat
in the original position, and then in-
stall the bolt.
2. Close the rider seat.TIP

Make sure that the passenger seat is
properly secured before riding.
EAU34150
Adjusting the rider seat
The rider seat can be adjusted as fol-
lows to change the riding position.
1. Open the rider seat. (See
page 3-17.)
2. Remove the bolts.
1. Passenger seat
2. Bolt
2
1

1. Passenger seat
2. Seat holder
1
2
2

1. Rider seat
1

INSTRUMENT AND CONTROL FUNCTIONS
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3. Slide the rider seat forward or
backward to the desired position.
4. Install bolts and securely tighten
them.
5. Close the rider seat.

EAU14494
Storage compartments
Front storage compartment A
To open the storage compartment
when it is locked, insert the key in the
lock, turn it counterclockwise, and then
grasp the lock while pushing the button
in.
To open the storage compartment
when it is unlocked, simply grasp the
lock while pushing the button in.
To lock the storage compartment, push
the lid into the original position, insert
the key in the lock, turn it clockwise,
and then remove it.
Front storage compartment B
To open the storage compartment,
slide the lever up, and then pull on the
lever.

1. Bolt
11

1. Open.
2. Button
3. Lid
23
1

1. Lock.
2. Lid
1. Storage compartment opening lever
2. Lid
2
1
2
1

INSTRUMENT AND CONTROL FUNCTIONS
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To close the storage compartment,
push the lid into the original position.
WARNING! Do not store heavy items
in this compartment.

[EWA11161]

Rear storage compartment
Two helmets can be stored in the stor-
age compartment under the seats.
(See page 3-17.)
NOTICE

ECA10080
Keep the following points in mind
when using the storage compart-
ment.

Since the storage compartment
accumulates heat when ex-
posed to the sun, do not storeanything susceptible to heat in-
side 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.
NOTICE

ECA11100
Do not leave the rider seat open for
an extended period of time, other-
wise the light may cause the battery
to discharge.
WARNING

EWA11171
Do not exceed the following loading
limits:

Front storage compartment A:
2 kg (4 lb)

Rear storage compartment: 5 kg
(11 lb)

Maximum load for the vehicle:
YP400 188 kg (414 lb) YP400A
185 kg (408 lb)
1. Rider seat
1

INSTRUMENT AND CONTROL FUNCTIONS
3-21
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EAU14892
Adjusting the shock absorber
assemblies
WARNING

EWA10210
Always adjust both shock absorber
assemblies equally, otherwise poor
handling and loss of stability may
result.
Each shock absorber assembly is
equipped with a spring preload adjust-
ing ring.
NOTICE

ECA10101
To avoid damaging the mechanism,
do not attempt to turn beyond the
maximum or minimum settings.
Adjust the spring preload as follows.
To increase the spring preload and
thereby harden the suspension, turn
the adjusting ring on each shock ab-
sorber assembly in direction (a). To de-
crease the spring preload and thereby
soften the suspension, turn the adjust-
ing ring on each shock absorber as-
sembly in direction (b).

Align the appropriate notch in the
adjusting ring with the position in-dicator on the shock absorber.

Use the spring preload adjusting
tool included in the owner’s tool kit
to make this adjustment.
EAU15303
Sidestand
The sidestand is located on the left side
of the frame. Raise the sidestand or
lower it with your foot while holding the
vehicle upright.
TIP

The built-in sidestand switch is part of
the ignition circuit cut-off system, which
cuts the ignition in certain situations.
(See page 3-22 for an explanation of
the ignition circuit cut-off system.)
WARNING

EWA10240
The vehicle must not be ridden with
the sidestand down, or if the side-
stand 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.
Yamaha’s ignition circuit cut-off
system has been designed to assist
the operator in fulfilling the respon-
sibility of raising the sidestand be-
fore starting off. Therefore, check
this system regularly as described
below and have a Yamaha dealer re-
1. Spring preload adjusting ring
2. Position indicator
3. Spring preload adjusting tool
Spring preload setting:
Minimum (soft):
1
Standard:
2
Maximum (hard):
5
1
3
2
(b)(a)
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5

INSTRUMENT AND CONTROL FUNCTIONS
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9 pair it if it does not function proper-

ly.
EAU45051
Ignition circuit cut-off system
The ignition circuit cut-off system (com-
prising the sidestand switch and brake
light switches) has the following func-
tions.

It prevents starting when the side-
stand is up, but neither brake is ap-
plied.

It prevents starting when either
brake is applied, but the sidestand
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.

INSTRUMENT AND CONTROL FUNCTIONS
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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.The sidestand switch may not be working correctly.
The scooter should not be ridden until
checked by a Yamaha dealer.
The brake switch may not be working correctly.
The scooter should not be ridden until
checked by a Yamaha dealer.
The sidestand switch may not be working correctly.
The scooter should not be ridden until
checked by a Yamaha dealer.
YES NO YES NO NO YES
If a malfunction is noted, have a Yamaha
dealer check the system before riding.
WARNING

4-1
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FOR YOUR SAFETY – PRE-OPERATION CHECKS
EAU15596
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

EWA11151
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 in
this 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.3-15
Engine oil

Check oil level in engine.

If necessary, add recommended oil to specified level.

Check vehicle for oil leakage.6-12
Final transmission oil

Check vehicle for oil leakage. 6-15
Coolant

Check coolant level in reservoir.

If necessary, add recommended coolant to specified level.

Check cooling system for leakage.6-16
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 recommended brake fluid to specified level.

Check hydraulic system for leakage.6-23, 6-24, 6-25

FOR YOUR SAFETY – PRE-OPERATION CHECKS
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Rear 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 recommended brake fluid to specified level.

Check hydraulic system for leakage.6-23, 6-24, 6-25
Throttle grip

Make sure that operation is smooth.

Check cable free play.

If necessary, have Yamaha dealer adjust cable free play and lubricate cable and
grip housing.6-20, 6-27
Wheels and tires

Check for damage.

Check tire condition and tread depth.

Check air pressure.

Correct if necessary.6-21, 6-22
Brake levers

Make sure that operation is smooth.

Lubricate lever pivoting points if necessary.6-27
Centerstand, sidestand

Make sure that operation is smooth.

Lubricate pivots if necessary.6-28
Chassis fasteners

Make sure that all nuts, bolts and screws are properly tightened.

Tighten if necessary.—
Instruments, lights, signals
and switches

Check operation.

Correct if necessary.—
Sidestand switch

Check operation of ignition circuit cut-off system.

If system is not working correctly, have Yamaha dealer check vehicle.3-21
ITEM CHECKS PAGE