2008 YAMAHA MAJESTY 400 maintenance

PERIODIC MAINTENANCE AND MINOR REPAIR
6-38
1
2
3
4
5
6
7
8
9

EAU34271
Replacing the license plate
light bulb
1. Place the scooter on the center-
stand.
2. Remove cowling B. (See
page 6-7.)
3. Remove the license plate light cov-
er and license plate light lens by
removing the screws.
4. Remove the defective bulb by
pushing it in and turning it counter-
clockwise.5. Insert a new bulb into the socket,
push it in, and then turn it clock-
wise until it stops.
6. Install the license plate light lens
and license plate light cover by in-
stalling the screws.
7. Install the cowling.
EAU42800
Replacing an auxiliary light
bulb
1. Place the scooter on the center-
stand.
2. Remove panel A. (See page 6-7.)
3. Remove the windshield by remov-
ing the screws.
4. Remove the front turn signal light
unit by removing the screws.
1. License plate light lens
2. License plate light cover
3. Screw
1
23

1. Bulb
1

1. Screw
2. Windshield
1
2

PERIODIC MAINTENANCE AND MINOR REPAIR
6-39
2
3
4
5
67
8
9
5. Remove the auxiliary light bulb
socket (together with the bulb) by
turning it counterclockwise.
6. Remove the defective bulb by pull-
ing it out.7. Insert a new bulb into the socket.
8. Install the socket (together with the
bulb) by turning it clockwise.
9. Place the turn signal light unit in
the original position, and then in-
stall the screws.
10. Install the windshield by installing
the screws.
11. Install panel A.

EAU25880
Troubleshooting
Although 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.
1. Screw
2. Front turn signal light unit
1. Auxiliary light bulb socket
1
2
1

PERIODIC MAINTENANCE AND MINOR REPAIR
6-40
1
2
3
4
5
6
7
8
9

EAU42700
Troubleshooting charts
Starting problems or poor engine
performance
WARNING

EWA10840
Keep away open flames and do not smoke while checking or working on the fuel system.
Check the fuel level in
the fuel tank.1. Fuel
There is enough fuel.
There is no fuel.
Check the compression.
Supply fuel.
The engine does not start.
Check the compression.
Operate the electric starter.2. Compression
There is compression.
There is no compression.
Check the ignition.
Have a Yamaha dealer
check the vehicle.
Remove the spark plug
and check the electrodes.3. Ignition
Wipe off with a dry cloth and correct the
spark plug gap, or replace the spark plug.
Have a Yamaha dealer check the vehicle.
The engine does not start.
Have a Yamaha dealer
check the vehicle.
The engine does not start.
Check the battery.
Operate the electric starter.4. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.Check the battery lead connections,
and charge the battery if necessary.
DryWet
Operate the electric starter.

PERIODIC MAINTENANCE AND MINOR REPAIR
6-41
2
3
4
5
67
8
9 Engine overheating
WARNING

EWAT1040

Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be
blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.

Place a thick rag, like a towel, over the radiator cap, and then slowly rotate the cap counterclockwise to the de-
tent to allow any residual pressure to escape. When the hissing sound has stopped, press down on the cap
while turning it counterclockwise, and then remove the cap.
NOTE:

If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended coolant
as soon as possible.
Wait until the
engine has cooled.
Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer checkand repair the cooling system.Add coolant. (See NOTE.)
Start the engine. If the engine overheats again,
have a
Yamaha dealer check
and repair the cooling system.
There is
leakage.
There is
no leakage.

INDEX
A
ABS (for ABS models) .............................3-12
ABS warning light (for ABS models) ..........3-4
Acceleration and deceleration ...................5-2
Air filter elements and check hoses and
V-belt case air filter element ..................6-19
Anti-theft alarm (optional) ..........................3-9
Auxiliary light bulb, replacing ...................6-38
B
Battery .....................................................6-32
Brake fluid, changing ...............................6-28
Brake fluid level, checking .......................6-27
Brake lever, front .....................................3-11
Brake lever, rear ......................................3-11
Brake levers, lubricating ..........................6-29
Braking ......................................................5-2
C
Cables, checking and lubricating .............6-28
Care ...........................................................7-1
Catalytic converters .................................3-14
Centerstand and sidestand, checking and
lubricating ..............................................6-29
Coolant ....................................................6-17
Cowlings and panels, removing and
installing ..................................................6-7
D
Dimmer switch .........................................3-10
E
Engine break-in .........................................5-4
Engine oil and oil filter element ................6-13
Engine stop switch...................................3-10
Engine trouble warning light ......................3-4
F
Final transmission oil ...............................6-16Front and rear brake lever free play ........ 6-25
Front and rear brake pads, checking....... 6-26
Front fork, checking ................................. 6-30
Fuel ......................................................... 3-14
Fuel consumption, tips for reducing .......... 5-3
Fuel tank cap ........................................... 3-13
Fuses, replacing ...................................... 6-33
H
Handlebar switches ................................... 3-9
Hazard switch .......................................... 3-10
Headlight bulb, replacing ......................... 6-35
High beam indicator light ........................... 3-3
Horn switch.............................................. 3-10
I
Identification numbers ............................... 9-1
Ignition circuit cut-off system ................... 3-20
Immobilizer system.................................... 3-1
Immobilizer system indicator light ............. 3-4
Indicator and warning lights....................... 3-3
K
Key identification number .......................... 9-1
L
License plate light bulb, replacing ........... 6-38
M
Main switch/steering lock .......................... 3-2
Matte color, caution ................................... 7-1
Model label ................................................ 9-2
Multi-function display ................................. 3-5
P
Parking ...................................................... 5-4
Part locations............................................. 2-1
Pass switch ............................................. 3-10
Periodic maintenance and lubrication
chart ........................................................ 6-3Pre-operation check list............................. 4-2
R
Rear brake lock lever .............................. 3-11
Rear brake lock lever cable, adjusting .... 6-26
Rider seat, adjusting ............................... 3-16
S
Safe-riding points ...................................... 1-4
Safety information ..................................... 1-1
Seats ....................................................... 3-15
Shock absorber assemblies, adjusting.... 3-18
Sidestand ................................................ 3-19
Spark plug, checking ............................... 6-11
Specifications ............................................ 8-1
Speedometer............................................. 3-5
Starting off ................................................. 5-2
Starting the engine .................................... 5-1
Start switch.............................................. 3-10
Steering, checking................................... 6-31
Storage...................................................... 7-3
Storage compartments ............................ 3-17
T
Tachometer ............................................... 3-5
Tail/brake light ......................................... 6-36
Throttle cable free play, checking ........... 6-22
Throttle grip and cable, checking and
lubricating ............................................. 6-29
Tires ........................................................ 6-22
Tool kit....................................................... 6-1
Troubleshooting ...................................... 6-39
Troubleshooting charts............................ 6-40
Turn signal indicator lights ........................ 3-3
Turn signal light bulb (front), replacing .... 6-36
Turn signal light bulb (rear), replacing..... 6-37
Turn signal switch ................................... 3-10