2008 YAMAHA MAJESTY 400 ECO mode

INSTRUMENT AND CONTROL FUNCTIONS
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high beam of the headlight is switched
on.

EAU11480
Engine trouble warning light “”
This warning light comes on when an
electrical circuit monitoring the engine
is defective. When 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”. If the warning light does not come
on for a few seconds, then go off, have
a Yamaha dealer check the electrical
circuit.
EAU11551
ABS warning light “” (for ABS
models)
CAUTION:

ECA10830
If the ABS warning light comes on or
flashes while riding, the ABS may be
defective. If this occurs, have a
Yamaha dealer check the electrical
circuit.
See page 3-12 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 or
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 to
cause the wheel to lock during emer-
gency braking.
NOTE:

The ABS warning light may come on
while pushing the start switch and while
accelerating the engine with the scoot-
er on its centerstand, but this does not
indicate a malfunction.
EAU38620
Immobilizer system indicator light
The electrical circuit of the indicator
light can be checked by turning the keyto “ON”.
If the indicator light does not come on
for a few seconds, then go off, have a
Yamaha dealer check the electrical cir-
cuit.
When the key is turned to “OFF” and 30
seconds have passed, the indicator
light will start flashing indicating the im-
mobilizer system is enabled. After 24
hours have passed, the indicator light
will stop flashing, however the immobi-
lizer system is still enabled.
This model is also equipped with a
self-diagnosis device for the immobiliz-
er system. (See page 3-5 for an expla-
nation of the self-diagnosis device.)
ABS

INSTRUMENT AND CONTROL FUNCTIONS
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The multi-function display is equipped
with the following:


a fuel meter

a coolant temperature meter

an odometer (which shows the to-
tal distance traveled)

two tripmeters (which show the
distance traveled since they were
last set to zero)

a fuel reserve tripmeter (which
shows the distance traveled since
the bottom segment of the fuel
meter and fuel level warning indi-cator started flashing)

a self-diagnosis device

a clock

an ambient temperature display

an oil change indicator

a V-belt replacement indicator
NOTE:


Be sure to turn the key to “ON” be-
fore using the “SELECT” and “RE-
SET” buttons.

When the key is turned to “ON”, all
of the display segments of the
multi-function display will appear
one after the other and then disap-
pear, in order to test the electrical
circuit.
Odometer and tripmeter modes
Pushing the “SELECT” button switches
the display between the odometer
mode “ODO” and the tripmeter modes
“TRIP” in the following order:
ODO
→
TRIP (top)
→
TRIP (bottom)
→
ODO
When approximately 2.8 L (0.74 US
gal) (0.62 Imp.gal) of fuel remains in the
fuel tank, the bottom segment of the
fuel meter and fuel level warning indica-tor will start flashing, and the display will
automatically change to the fuel re-
serve tripmeter mode “TRIP F” and
start counting the distance traveled
from that point. In that case, pushing
the “SELECT” button switches the dis-
play between the various tripmeter and
odometer modes in the following order:
TRIP F
→
TRIP (top)
→
TRIP (bottom)
→
ODO
→
TRIP F
To reset a tripmeter, select it by push-
ing the “SELECT” button until “TRIP” or
“TRIP F” begins flashing (“TRIP” or
“TRIP F” will only flash for five sec-
onds). While “TRIP” or “TRIP F” is
flashing, push the “RESET” button for
at least one second. If you do not reset

1. V-belt replacement indicator “V-BELT”
2. Fuel level warning indicator “”
3. Coolant temperature warning indicator
“”
4. Oil change indicator “OIL”
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1. Fuel reserve tripmeter
1

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the fuel reserve tripmeter manually, it
will reset itself automatically and the
display will return to the prior mode af-
ter refueling and traveling 5 km (3 mi).
NOTE:

The display cannot be changed back to
“TRIP F” after pushing the “RESET”
button.
Fuel meter
With the key in the “ON” position, the
fuel meter indicates the amount of fuel
in the fuel tank. The display segments
of the fuel meter disappear towards “E”
(Empty) as the fuel level decreases.
When the fuel level reaches the bottom
segment near “E”, the fuel level warn-
ing indicator and the bottom segment
will flash. Refuel as soon as possible.
Coolant temperature meter
With the key in the “ON” position, the
coolant temperature meter indicates
the temperature of the coolant. The
coolant temperature varies with chang-
es in the weather and engine load. If
the top segment and coolant tempera-
ture warning indicator flash, stop thevehicle and let the engine cool. (See
page 6-40.)
CAUTION:

ECA10020
Do not operate the engine if it is
overheated.
Oil change indicator “OIL”
This indicator flashes at the initial 1000
km (600 mi), then at 5000 km (3000 mi)
and every 5000 km (3000 mi) thereafter
to indicate that the engine oil should be
changed.
After changing the engine oil, reset the
oil change indicator. (See page 6-13.)
If the engine oil is changed before the
oil change indicator comes on (i.e. be-
fore the periodic oil change interval hasbeen reached), the indicator must be
reset after the oil change for the next
periodic oil change to be indicated at
the correct time. (See page 6-13.)
The electrical circuit of the indicator can
be checked according to the following
procedure.
1. Set the engine stop switch to “”
and turn the key to “ON”.
2. Check that the indicator comes on
for a few seconds and then goes
off.
3. If the indicator does not come on,
have a Yamaha dealer check the
electrical circuit.
NOTE:

The oil change indicator may flash
when the engine is revved with the
scooter on the centerstand, but this
does not indicate a malfunction.
V-belt replacement indicator
“V-BELT”
This indicator flashes every 20000 km
(12500 mi) when the V-belt needs to be
replaced.
The electrical circuit of the indicator can
be checked according to the following

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procedure.
1. Turn the key to “ON” and make
sure that the engine stop switch is
set to “”.
2. If the indicator does not come on,
have a Yamaha dealer check the
electrical circuit.
Self-diagnosis device
This model is equipped with a self-diag-
nosis device for various electrical cir-
cuits.
If any of those circuits are defective, the
multi-function display will indicate a
two-digit error code.
If the multi-function display indicates
such an error code, note the code num-
ber, and then have a Yamaha dealer
check the vehicle.
CAUTION:

ECA11790
If the multi-function display indi-
cates an error code, the vehicle
should be checked as soon as pos-
sible in order to avoid engine dam-
age.
This model is also equipped with a
self-diagnosis device for the immobiliz-er system.
If any of the immobilizer system circuits
are defective, the immobilizer system
indicator light will flash, and then the
multi-function display will indicate a
two-digit error code when the key is
turned to “ON”.
NOTE:

If the multi-function display indicates er-
ror code 52, this could be caused by
transponder interference. If this error
appears, try the following.
1. Use the code re-registering key to
start the engine.
NOTE:

Make sure there are no other immobi-
lizer keys close to the main switch, and
do not keep more than one immobilizer
key on the same key ring! Immobilizer
system keys may cause signal interfer-
ence, which may prevent the engine
from starting.
2. If the engine starts, turn it off, and
try starting the engine with the
standard keys.
3. If one or both of the standard keys
do not start the engine, take thevehicle, the code re-registering
key and both standard keys to a
Yamaha dealer and have the stan-
dard keys re-registered.
If the multi-function display indicates
any error codes, note the code number,
and then have a Yamaha dealer check
the vehicle.
Clock mode
To set the clock:
1. Push the “SELECT” button and
“RESET” button together for at
least two seconds.
2. When the hour digits start flashing,
push the “RESET” button to set the
hours.
3. Push the “SELECT” button, and
the minute digits will start flashing.
4. Push the “RESET” button to set
the minutes.
5. Push the “SELECT” button and
then release it to start the clock.
Pushing the “SELECT” button for
at least two seconds switches the
clock display to the ambient tem-
perature display.

INSTRUMENT AND CONTROL FUNCTIONS
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9 Ambient temperature display
This display shows the ambient tem-
perature from –10 °C to 50 °C in 1 °C
increments. The temperature displayed
may vary from the ambient tempera-
ture. Pushing the “SELECT” button for
at least two seconds switches the am-
bient temperature display to the clock
display.
NOTE:


If the ambient temperature falls be-
low –10 °C, a lower temperature
than –10 °C will not be displayed.

If the ambient temperature climbs
above 50 °C, a higher temperature
than 50 °C will not be displayed.

The accuracy of the temperature
reading may be affected when
riding slowly (approximately under
20 km/h (12.5 mi/h)) or when
stopped at traffic signals, railroad
crossings, etc.
EAU12331
Anti-theft alarm (optional)
This model can be equipped with an
optional anti-theft alarm by a Yamaha
dealer. Contact a Yamaha dealer for
more information.
EAU12347
Handlebar switches
Left
1. Pass switch “PASS”
2. Dimmer switch “/”
3. Turn signal switch “/”
4. Horn switch “”
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INSTRUMENT AND CONTROL FUNCTIONS
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rear brake lock lever is applied.


To provide secure locking of the
rear wheel, apply the rear brake le-
ver first before moving the rear
brake lock lever to the left.
WARNING

EWA12361
Never move the rear brake lock lever
to the left while the vehicle is mov-
ing, otherwise loss of control or an
accident may result. Make sure that
the vehicle is stopped before mov-
ing the rear brake lock lever to the
left.
EAU12991
ABS (for ABS models)
The Yamaha ABS (Anti-lock Brake
System) features a dual electronic con-
trol system, which acts on the front and
rear brakes independently. The ABS
securely controls wheel lockup during
emergency braking on changing road
surfaces and under various weather
conditions, thereby maximizing tire ad-
hesion and performance while provid-
ing a smooth braking action. The ABS
is monitored by an ECU (Electronic
Control Unit), which will have recourse
to manual braking if a malfunction oc-
curs.
WARNING

EWA10090

The ABS performs best on long
braking distances.

On certain (rough or gravel)
roads, the braking distance may
be longer with than without the
ABS. Therefore, always keep a
sufficient distance to the vehi-
cle ahead to match the riding
speed.
NOTE:


When the ABS is activated, the
brakes are operated in the usual
way. A pulsating action may be felt
at the brake levers, but this does
not indicate a malfunction.

This ABS has a test mode which
allows the owner to experience the
pulsating at the brake levers when
the ABS is operating. However,
special tools are required, so
please consult your Yamaha deal-
er when performing this test.

PERIODIC MAINTENANCE AND MINOR REPAIR
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CAUTION:

ECA10640
Do not use a fuse of a higher amper-
age rating than recommended to
avoid causing extensive damage to
the electrical system and possibly a
fire.
3. Turn the key to “ON” and turn on
the electrical circuit in question tocheck if the device operates.
4. If the fuse immediately blows
again, have a Yamaha dealer
check the electrical system.
EAU34240
Replacing a headlight bulb
This model is equipped with quartz bulb
headlights. If a headlight bulb burns
out, have a Yamaha dealer replace it
and, if necessary, adjust the headlight
beam.
Specified fuses:
Main fuse:
40.0 A
Ignition fuse:
10.0 A
Signaling system fuse:
10.0 A
Headlight fuse:
25.0 A
Hazard fuse:
10.0 A
Radiator fan fuse:
10.0 A
Fuel injection system fuse:
10.0 A
ABS control unit fuse:
YP400A 10.0 A
ABS motor fuse:
YP400A 30.0 A
Backup fuse:
10.0 A

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SPECIFICATIONS
EAU2633M
Dimensions:
Overall length:
2230 mm (87.8 in)
Overall width:
780 mm (30.7 in)
Overall height:
1380 mm (54.3 in)
Seat height:
760 mm (29.9 in)
Wheelbase:
1565 mm (61.6 in)
Ground clearance:
120 mm (4.72 in)
Minimum turning radius:
2600 mm (102.4 in)
Weight:
With oil and fuel:
YP400 219.0 kg (483 lb)
YP400A 223.0 kg (492 lb)
Engine:
Engine type:
Liquid cooled 4-stroke, DOHC
Cylinder arrangement:
Forward-inclined single cylinder
Displacement:
395.0 cm
3

Bore
×
stroke:
83.0
×
73.0 mm (3.27
×
2.87 in)
Compression ratio:
10.60 :1Starting system:
Electric starter
Lubrication system:
Wet sump

Engine oil:
Type:
SAE 10W-30, SAE 10W-40, SAE 15W-40,
SAE 20W-40 or SAE 20W-50
Recommended engine oil grade:
API service SG type or higher, JASO stan-
dard MA
Engine oil quantity:
Without oil filter element replacement:
1.50 L (1.59 US qt) (1.32 Imp.qt)
With oil filter element replacement:
1.70 L (1.80 US qt) (1.50 Imp.qt)
Final transmission oil:
Type:
SAE 10W-30 type SE motor oil
Quantity:
0.25 L (0.26 US qt) (0.22 Imp.qt)
Cooling system:
Coolant reservoir capacity (up to the maxi-
mum level mark):
0.32 L (0.34 US qt) (0.28 Imp.qt)
Radiator capacity (including all routes):
1.57 L (1.66 US qt) (1.38 Imp.qt)
Air filter:
Air filter element:
Oil-coated paper element
Fuel:
Recommended fuel:
Regular unleaded gasoline only
Fuel tank capacity:
14.0 L (3.70 US gal) (3.08 Imp.gal)
Fuel injection:
Throttle body:
Manufacturer:
AISAN
Spark plug (s):
Manufacturer/model:
NGK/CR7E
Spark plug gap:
0.7–0.8 mm (0.028–0.031 in)
Clutch:
Clutch type:
Dry, centrifugal automatic
Transmission:
Primary reduction system:
Helical gear
Primary reduction ratio:
31/14 (2.214)
Secondary reduction system:
Helical gear
-20 -10 0
10 20 30
40
50 ˚C
SAE 10W-30
SAE 15W-40SAE 20W-40SAE 20W-50
SAE 10W-40SAE 10W-50