ECU YAMAHA MAJESTY 400 2007 Owners Manual

SAFETY INFORMATION
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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. Make sure
to distribute the weight as evenly
as possible on both sides of the
scooter to minimize 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.

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.
Accessories
Genuine Yamaha accessories have
been specifically designed for use on
this scooter. Since Yamaha cannot test
all other accessories that may be avail-
able, you must personally be responsi-
ble for the proper selection, installationand use of non-Yamaha accessories.
Use extreme caution when selecting
and installing any accessories.
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 improper
weight 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 aerodynamiceffects. 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 an
electric failure could result, which
could cause a dangerous loss of
lights or engine power.
Gasoline and exhaust gas

GASOLINE IS HIGHLY FLAMMA-
BLE:

Always turn the engine off when
refueling.

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INSTRUMENT AND CONTROL FUNCTIONS
EAU10972
Immobilizer system
This vehicle is equipped with an immo-
bilizer system to help prevent theft by
re-registering codes in the standard
keys. This system consists of the fol-
lowing.

a code re-registering key (with a
red bow)

two standard keys (with a black
bow) that can be re-registered with
new codes

a transponder (which is installed in
the code re-registering key)

an immobilizer unit

an ECU

an immobilizer system indicator
light (See page 3-3.)
The key with the red bow is used to reg-
ister codes in each standard key. Since
re-registering is a difficult process, take
the vehicle along with all three keys to
a Yamaha dealer to have them re-reg-
istered. Do not use the key with the red
bow for driving. It should only be used
for re-registering the standard keys. Al-
ways use a standard key for driving.
CAUTION:

ECA11820

DO NOT LOSE THE CODE
RE-REGISTERING KEY! CON-
TACT YOUR DEALER IMMEDI-
ATELY IF IT IS LOST! If the code
re-registering key is lost, regis-
tering new codes in the stan-
dard keys is impossible. The
standard keys can still be used
to start the vehicle, however if
code re-registering is required
(i.e., if a new standard key is
made or all keys are lost) the en-
tire immobilizer system must be
replaced. Therefore, it is highly
recommended to use either
standard key and keep the codere-registering key in a safe
place.

Do not submerse any key in wa-
ter.

Do not expose any key to exces-
sively high temperatures.

Do not place any key close to
magnets (this includes, but not
limited to, products such as
speakers, etc.).

Do not place heavy items on any
key.

Do not grind any key or alter its
shape.

Do not disassemble the plastic
part of any key.

Do not put two keys of any im-
mobilizer system on the same
key ring.

Keep the standard keys as well
as keys of other immobilizer
systems away from this vehi-
cle’s code re-registering key.

Keep other immobilizer system
keys away from the main switch
as they may cause signal inter-
ference.
1. Code re-registering key (red bow)
2. Standard keys (black bow)

INSTRUMENT AND CONTROL FUNCTIONS
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EAU12950
Rear brake lever
The rear brake lever is located on the
left handlebar grip. To apply the rear
brake, pull this lever toward the handle-
bar grip.
EAU12962
Rear brake lock lever
This vehicle is equipped with a rear
brake lock lever to prevent the rear
wheel from moving while stopped at
traffic signals, railroad crossings, etc.
To lock the rear wheel
Push the rear brake lock lever to the left
until it snaps into place.
To unlock the rear wheel
Push the rear brake lock lever back to
the original position.
NOTE:


Be sure to check that the rear
wheel does not move when therear 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.
1. Rear brake lever
1

1. Rear brake lock lever
1

INSTRUMENT AND CONTROL FUNCTIONS
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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.
EAU13161
Fuel tank cap
To open the fuel tank cap
1. Open the lid by sliding the lever
forward, and then pull the lever up.
2. Insert the key into the lock and turn
it clockwise. The lock will be re-
leased and the fuel tank cap can
be removed.
1. Lid
2. Opening lever
2 1

INSTRUMENT AND CONTROL FUNCTIONS
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NOTE:

Do not push inward when turning the
key.
3. Fold the rider seat up.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.NOTE:

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.NOTE:

Make sure that the passenger seat is
properly secured before riding.
1. Open.
1. Rider seat
1
1

1. Passenger seat
2. Bolt2
1
1. Passenger seat
2. Seat holder
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INSTRUMENT AND CONTROL FUNCTIONS
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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 3-14.)
2. Remove the bolts.3. Slide the rider seat forward or
backward to the desired position.
4. Install bolts and securely tighten
them.
5. Close the rider seat.
EAU14492
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,
1. Rider seat
1

1. Bolt
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1. Open.
2. Button
3. Lid
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PERIODIC MAINTENANCE AND MINOR REPAIR
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9 total weight of rider, passenger,
cargo, and accessories does
not exceed the specified maxi-
mum load for the vehicle.


Do not carry along loosely
packed items, which can shift
during a ride.

Securely pack the heaviest
items close to the center of the
vehicle and distribute the
weight evenly on both sides.

Adjust the suspension and tire
air pressure with regard to the
load.

Check the tire condition and air
pressure before each ride.Tire inspection
The tires must be checked before each
ride. If the center tread depth reaches
the specified limit, if the tire has a nail or
glass fragments in it, or if the sidewall is
cracked, have a Yamaha dealer re-
place the tire immediately.
NOTE:

The tire tread depth limits may differ
from country to country. Always comply
with the local regulations.
Tire information
This model is equipped with tubeless
tires.
WARNING

EWA10470

Have a Yamaha dealer replace
excessively worn tires. Besides
being illegal, operating the vehi-
cle with excessively worn tires
decreases riding stability and
can lead to loss of control.

The replacement of all wheel
and brake related parts, includ-
ing the tires, should be left to a
Yamaha dealer, who has the
necessary professional knowl-
1. Tire sidewall
2. Tire tread depth
Minimum tire tread depth (front and
rear):
1.6 mm (0.06 in)
12

Front tire:
Size:
120/80-14M/C 58S
Manufacturer/model:
IRC/MB67
DUNLOP/D305FL
Rear tire:
Size:
150/70-13M/C 64S
Manufacturer/model:
IRC/MB67
DUNLOP/D305L

PERIODIC MAINTENANCE AND MINOR REPAIR
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EAU23271
Checking the front fork
The condition and operation of the front
fork must be checked as follows at the
intervals specified in the periodic main-
tenance and lubrication chart.
To check the condition
WARNING

EWA10750
Securely support the vehicle so that
there is no danger of it falling over.
Check the inner tubes for scratches,
damage and excessive oil leakage.
To check the operation
1. Place the vehicle on a level sur-
face and hold it in an upright posi-
tion.
2. While applying the front brake,
push down hard on the handlebars
several times to check if the front
fork compresses and rebounds
smoothly.
CAUTION:

ECA10590
If any damage is found or the front
fork does not operate smoothly,
have a Yamaha dealer check or re-
pair it.
EAU23280
Checking the steering
Worn or loose steering bearings may
cause danger. Therefore, the operation
of the steering must be checked as fol-
lows at the intervals specified in the pe-
riodic maintenance and lubrication
chart.
1. Place a stand under the engine to
raise the front wheel off the
ground.
WARNING

EWA10750
Securely support the vehicle so that
there is no danger of it falling over.
2. Hold the lower ends of the front
fork legs and try to move them for-
ward and backward. If any free
play can be felt, have a Yamaha
dealer check or repair the steering.