2008 YAMAHA XT660Z key

IMPORTANT MANUAL INFORMATION
Particularly important information is distinguished in this manual by the following notations:
WARNING0

NOTE:
CAUTION:

The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR SAFETY IS
INVOLVED!
Failure to follow WARNING instructions could result in severe injury or death to the
motorcycle operator, a bystander, or a person inspecting or repairing the motorcycle.
A CAUTION indicates special precautions that must be taken to avoid damage to
the motorcycle.
A NOTE provides key information to make procedures easier or clearer.
NOTE:
●This manual should be considered a permanent part of this motorcycle and should remain with it even if the motor-
cycle is subsequently sold.
●Yamaha continually seeks advancements in product design and quality. Therefore, while this manual contains the
most current product information available at the time of printing, there may be minor discrepancies between your mo-
torcycle and this manual. If you have any questions concerning this manual, please consult your Yamaha dealer..
EWA10030
WARNING0
PLEASE READ THIS MANUAL CAREFULLY AND COMPLETELY BEFORE OPERATING THIS MOTORCYCLE.
* Product and specifications are subject to change without notice.

EAU10151

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SAFETY INFORMATION

• Certain accessories can dis-place the operator from his or
her normal riding position. This
improper position limits the
freedom of movement of the
operator and may limit control
ability, therefore, such acces-
sories are not recommended.
●Use caution when adding electri-
cal accessories. If electrical ac-
cessories exceed the capacity of
the motorcycle's electrical sys-
tem, an electric failure could re-
sult, which could cause a danger-
ous loss of lights or engine power.
Gasoline and exhaust gas
●GASOLINE IS HIGHLY FLAMMA-
BLE:
• Always turn the engine off when refueling.
• Take care not to spill any gaso- line on the engine or exhaust
system when refueling.
• Never refuel while smoking or in the vicinity of an open flame.
●Never start the engine or let it run
for any length of time in a closed
area. The exhaust fumes are poi-
sonous and may cause loss of
consciousness and death within a
short time. Always operate your
motorcycle in an area that has ad-
equate ventilation.
●Always turn the engine off before
leaving the motorcycle unattend-
ed and remove the key from the
main switch. When parking the
motorcycle, note the following:
• The engine and exhaust sys-tem may be hot, therefore, park
the motorcycle in a place where
pedestrians or children are not
likely to touch these hot areas.
• Do not park the motorcycle on a slope or soft ground, other-
wise it may fall over.
• Do not park the motorcycle near a flammable source, (e.g.,
a kerosene heater, or near an
open flame), otherwise it could
catch fire.
●When transporting the motorcycle
in another vehicle, make sure that
it is kept upright and that the fuel
cock(s) are turned to “ON” or
“RES” (for vacuum type)/”OFF”
(for manual type). If the motorcy-
cle should lean over, gasoline
may leak out of the carburetor or
fuel tank.
●If you should swallow any gaso-
line, inhale a lot of gasoline vapor,
or allow gasoline to get into your
eyes, see your doctor immediate-
ly. If any gasoline spills on your
skin or clothing, immediately
wash the affected area with soap
and water and change your
clothes.
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3-1
INSTRUMENT AND CONTROL FUNCTIONS
EAU10973
Immobilizer system
1. Code re-registering key (red bow)
2. Standard keys (black bow)
This vehicle is equipped with an im-
mobilizer 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-regis-
tered. 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.
ECA11821CAUTION:
●DO NOT LOSE THE CODE RE-
REGISTERING KEY! CONTACT
YOUR DEALER IMMEDIATELY
IF IT IS LOST! If the code re-reg-
istering key is lost, registering
new codes in the standard keys
is impossible. The standard keys
can still be used to start the ve-
hicle, however if code re-regis-
tering is required (i.e., if a new
standard key is made or all keys
are lost) the entire immobilizer
system must be replaced.
Therefore, it is highly recom-
mended to use either standard key and keep the code re-regis-
tering key in a safe place.
●Do not submerse any key in water.
●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 items that transmit
electrical signals close to any key.
●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 immobi-
lizer 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.

XT660Z 01-03 ING 10-03-2008 16:11 Pagina 3-1

INSTRUMENT AND CONTROL FUNCTIONS
3-2
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EAU10471
Main switch/steering lock
The main switch/steering lock controls
the ignition and lighting systems, and
is used to lock the steering.
NOTE:
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.

EAU10550
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.
NOTE:
The headlights comes on automatical-
ly when the engine is started and stay
on until the key is turned to “OFF”,
even if the engine stalls.
EAU10660
OFF
All electrical systems are off. The key
can be removed.
EAU10680
LOCK
The steering is locked, and all electri-
cal systems are off. The key can be re-
moved T
o lock the steering
1. Push
2. Turn
1. Turn the handlebars all the way to
the left.
2. Push the key in from the “OFF” position, and then turn it to
“LOCK” while still pushing it.
3. Remove the key.

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INSTRUMENT AND CONTROL FUNCTIONS
3-3
To unlock the steering
1. Push
2. Turn
Push the key in, and then turn it to
“OFF” while still pushing it.
EWA10060
WARNING0
Never turn the key to “OFF” or
“LOCK” while the vehicle is mov-
ing, otherwise the electrical sys-
tems will be switched off, which
may result in loss of control or an
accident. Make sure that the vehi-
cle is stopped before turning the
key to “OFF” or “LOCK”.

EAU10941
F(Parking)
The steering is locked, and the tail-
light, license plate light and auxiliary
lights are on. The hazard lights and
turn signal 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 “ F”.
ECA11020CAUTION:
Do not use the parking position for
an extended length of time, other-
wise the battery may discharge.
EAU11003
Indicator and warning lights
1. Immobilizer system indicator light “ ”
2. Neutral indicator light “ N”
3. Turn signal indicator light “ y”
4. High beam indicator light “ 1”
5. Engine trouble warning light “ U”
6. Coolant temperature warning light “ u”
EAUB1510
Turn signal indicator light “ y”
This indicator light flashes when the
turn signal switch is pushed to the left
or right.
The electrical circuit of the turn signal
indicator light can be checked by turn-
ing the key to "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.

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INSTRUMENT AND CONTROL FUNCTIONS
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EAUB1520
Neutral indicator light “ N”
This indicator light comes on when the
transmission is in the neutral position.
The electrical circuit of the neutral indi-
cator light can be checked by turning
the key to "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.
EAUB1530
High beam indicator light “ 1”
This indicator light comes on when the
high beam of the headlight is switched
on. The electrical circuit of the high
beam indicator light can be checked
by turning the key to "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.
EAU11440
Coolant temperature warning
light “u ”
This warning light comes on when the
engine overheats. When this occurs,
stop the engine immediately and allow
the engine to cool. 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 cir-
cuit.
ECA10020
CAUTION:
Do not operate the engine if it is
overheated.
EAU11530
Engine trouble warning light “ U”
This warning light comes on or flashes
when an electrical circuit monitoring
the engine is defective. When this oc-
curs, have a Yamaha dealer check the
self-diagnosis system. (See page 3-7
for an explanation of the self-diagnosis
device.)
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.
EAU26873
Immobilizer system indicator
light “ ”
The electrical circuit of the indicator
light can be checked by turning the
key to “ON”.
If the inidcator 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
immobilizer system is enabled. After
24 hours have passed, the indicator
light will stop flashing, however the im-
mobilizer system is still enabled.
This model is also equipped with a
self-diagnosis device for the immobi-
lizer system. (See page 3-7 for an ex-
planation of the self-diagnosis device.)

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INSTRUMENT AND CONTROL FUNCTIONS
3-5
EAUB1501
Multi-function display
1. Tachometer
2. Speedometer
3. Odometer
4. Tripmeters/Fuel reserve tripmeter
5. Clock
6. Fuel meter
7. “RESET” button
8. “SELECT” button
EWA12311
WARNING0
Be sure to stop the vehicle before
making any setting changes to the
multi-function display.
The multi-function display is equipped
with the following:
●a speedometer (which shows the
riding speed)
●a digital tachometer (which shows
engine r/min)
●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 started flashing)
●a clock
●a fuel meter
●a self-diagnosis device
NOTE:
●Be sure to turn the key to "ON"
before using the "SELECT" and
"RESET" buttons.
●For the U.K. only: To switch the
speedometer and odometer/trip-
meter displays between kilome-
ters and miles, push the "SE-
LECT" and "RESET" buttons
together and turn the key to "ON".
When the digits start flashing,
push the "SELECT" button to
choose kilometers or miles.
XT660Z 01-03 ING 30-07-2008 11:43 Pagina 3-5

INSTRUMENT AND CONTROL FUNCTIONS
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Tachometer
1. Tachometer
2. Red zone
The tachometer allows the rider to
monitor the engine speed and keep it
within the ideal power range.
When the key is turned to "ON", the
tachometer needle will sweep once
across the r/min range and then return
to zero r/min in order to test the elec-
trical circuit.
ECA10030CAUTION:
Do not operate the engine in the
tachometer red zone.
Red zone: 7,500 r/min and above.

Tripmeter and tachometer modes
1. “SELECT” button
2. “RESET” button
Pushing the "SELECT" button switch-
es the display between the tripmeter
modes "TRIP 1" and "TRIP 2" in the
following order:
TRIP 1
6TRIP 2 6TRIP 1
When the fuel amount in the fuel tank
decreases to 6.7 L (1.77 US gal) (1.47
Imp.gal), the bottom segment of the
fuel meter will start flashing, and the
tripmeter display will automatically
change to the fuel reserve tripmeter
mode “F-TRIP” and start counting the
distance traveled from that point. In
that case, pushing the "SELECT" but-

ton switches the display between the
various tripmeter modes in the follow-
ing order:
F-TRIP
6TRIP 1 6TRIP 2 6F-TRIP
To reset a tripmeter, select it by push-
ing the "SELECT" button, and then
push the "RESET" button for at least
four seconds. If you do not reset the
fuel reserve tripmeter manually, it will
reset itself automatically and the dis-
play will return to the prior mode after
refueling and traveling 5 km (3 mi).

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