2008 YAMAHA XT660Z turn signal

TABLE OF CONTENTS
Lubricating the rear suspension......6-27
Lubricating the swingarm pivots .....6-28
Checking the front fork ....................6-28
Checking the steering .....................6-29
Checking the wheel bearings..........6-29
Battery.............................................6-30
Replacing the fuses ........................6-31
Replacing a headlight bulb .............6-33
Tail/brake light .................................6-34
Replacing a turn signal light bulb....6-34
Replacing the license plate light bulb ...................................6-35
Replacing an auxiliary light bulb .....6-35
Supporting the motorcycle ..............6-36
Front wheel .....................................6-36
Rear wheel ......................................6-38
Troubleshooting ...............................6-39
Troubleshooting charts ....................6-40
MOTORCYCLE CARE
AND STORAGE ...................................7-1
Care ..................................................7-1
Storage..............................................7-3 SPECIFICATIONS
...............................8-1
CONSUMER INFORMATION ..............9-1
Identification numbers .......................9-1

XT660Z 01-03 ING 10-03-2008 16:11 Pagina 7

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SAFETY INFORMATION

• Always obey the speed limitand never travel faster than
warranted by road and traffic
conditions.
• Always signal before turning or changing lanes. Make sure that
other motorists can see you.
●The posture of the operator and
passenger is important for proper
control.
• The operator should keep bothhands on the handlebar and
both feet on the operator
footrests during operation to
maintain control of the motor-
cycle.
• The passenger should always hold onto the operator, the seat
strap or grab bar, if equipped,
with both hands and keep
both feet on the passenger
footrests.
• Never carry a passenger un- less he or she can firmly place
both feet on the passenger
footrests.
●Never ride under the influence of
alcohol or other drugs. Protective apparel
The majority of fatalities from motorcy-
cle accidents are the result of head in-
juries. The use of a safety helmet is the
single most critical factor in the pre-
vention or reduction of head injuries.
●Always wear an approved helmet.
●Wear a face shield or goggles.
Wind in your unprotected eyes
could contribute to an impairment
of vision that could delay seeing a
hazard.
●The use of a jacket, heavy boots,
trousers, gloves, etc., is effective
in preventing or reducing abra-
sions or lacerations.
●Never wear loose-fitting clothes,
otherwise they could catch on the
control levers, footrests, or
wheels and cause injury or an ac-
cident.
●Never touch the engine or ex-
haust system during or after oper-
ation. They become very hot and
can cause burns. Always wear
protective clothing that covers
your legs, ankles, and feet.
●Passengers should also observe
the precautions mentioned above.Modifications
Modifications made to this motorcycle
not approved by Yamaha, or the re-
moval of original equipment, may ren-
der the motorcycle unsafe for use and
may cause severe personal injury.
Modifications may also make your mo-
torcycle illegal to use.
Loading and accessories
Adding accessories or cargo to your
motorcycle can adversely affect stabili-
ty and handling if the weight distribution
of the motorcycle is changed. To avoid
the possibility of an accident, use ex-
treme caution when adding cargo or
accessories to your motorcycle. Use
extra care when riding a motorcycle
that has added cargo or accessories.
Here are some general guidelines to
follow if loading cargo or adding ac-
cessories to your motorcycle:
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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.

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

INSTRUMENT AND CONTROL FUNCTIONS
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NOTE:
If the indicator light slowly flashes five
times, and then quickly flashes two
times repeatedly, this error could be
caused by transponder interference. If
this occurs, 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 immobiliz-
er key on the same key ring! Immobi-
lizer system keys may cause signal in-
terference, 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 the
vehicle, the code re-registering
key and both standard keys to a
Yamaha dealer and have the
standard keys re-registered. If the immobilizer system indicator
light continues to flash, have a Yama-
ha dealer check the vehicle.
EAU12331
Anti-theft alarm (optional)
This motorcycle can be equipped with
an optional anti-theft alarm by a Yama-
ha dealer. Contact a Yamaha dealer for
more information.
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INSTRUMENT AND CONTROL FUNCTIONS
3-9
EAU12347
Handlebar switches
Left
1. Pass switch “1”
2. Dimmer switch “2/ 1 ”
3. Horn switch “o”
4. Turn signal switch “ y”
5. Hazard switch “
r”

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Right
1. Engine stop switch “I/”
2. Start switch “J”
EAU12350
Pass switch “1”
Press this switch to flash the head-
light.
EAU12400
Dimmer switch “ 2/1”
Set this switch to “
1” for the high
beam and to “ 2” for the low beam.
EAU12500
Horn switch “ o”
Press this switch to sound the horn.
B

EAU12460
Turn signal switch “ y”
To signal a right-hand turn, push this
switch to “ Δ”. To signal a left-hand
turn, push this switch to “ Ÿ”. When re-
leased, the switch returns to the cen-
ter position. To cancel the turn signal
lights, push the switch in after it has re-
turned to the center position.
EAU12660
Engine stop switch “ I/”
Set this switch to “ I” before starting the
engine. Set this switch to “ ” to stop
the engine in case of an emergency,
such as when the motorcycle overturns
or when the throttle cable is stuck.
EAU12710
Start switch “J”
Push this switch to crank the engine
with the starter.
ECA10050CAUTION:
See page 5-1 for starting instruc-
tions prior to starting the engine.
,
B
B

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INSTRUMENT AND CONTROL FUNCTIONS
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EAU12733
Hazard switch “r”
With the key in the “ON” or Fposition,
use this switch to turn on the hazard
lights (simultaneous flashing of all turn
signal lights).
The hazard lights are used in case of
an emergency or to warn other drivers
when your vehicle is stopped where it
might be a traffic hazard.
ECA10061CAUTION:
Do not use the hazard lights for an
extended length of time with the
engine not running, otherwise the
battery may discharge.
EAU12820
Clutch lever
1. Clutch lever
The clutch lever is located at the left
handlebar grip. To disengage the
clutch, pull the lever toward the han-
dlebar grip. To engage the clutch, re-
lease the lever. The lever should be
pulled rapidly and released slowly for
smooth clutch operation.
The clutch lever is equipped with a
clutch switch, which is part of the igni-
tion circuit cut-off system. (See page
3-17).

1

EAU12870
Shift pedal
1. Shift pedal
The shift pedal is located on the left
side of the engine and is used in com-
bination with the clutch lever when
shifting the gears of the 5-speed con-
stant-mesh transmission equipped on
this motorcycle.

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OPERATION AND IMPORTANT RIDING POINTS
EAU15950
EWA10270
WARNING0
●Become thoroughly familiar
with all operating controls and
their functions before riding.
Consult a Yamaha dealer re-
garding any control or function
that you do not thoroughly un-
derstand.
●Never start the engine or oper-
ate it in a closed area for any
length of time. Exhaust fumes
are poisonous, and inhaling
them can cause loss of con-
sciousness and death within a
short time. Always make sure
that there is adequate ventila-
tion.
●Before starting out, make sure
that the sidestand is up. If the
sidestand is not raised com-
pletely, it could contact the
ground and distract the opera-
tor, resulting in a possible loss
of control.

EAUB1570
Starting the engine
In order for the ignition circuit cut-off
system to enable starting, one of the
following conditions must be met:
●The transmission is in the neutral
position.
●The transmission is in gear with
the clutch lever pulled and the
sidestand up.
EWA10290
WARNING0
●Before starting the engine,
check the function of the igni-
tion circuit cut-off system ac-
cording to the procedure de-
scribed on page 3-18.
●Never ride with the sidestand
down.
1. Turn the key to “ON” and make sure that the engine stop switch is
set to “
I”.

ECAB0070CAUTION:
The following warning lights and in-
dicator lights should come on for a
few seconds, then go off.
●Neutral indicator light
●Turn signal indicator light
●High beam indicator light
●Engine trouble warning light
●Coolant temperature warning
light
●Immobilizer system indicator
light
If a warning or indicator light does
not go off, see page 3-3 for the cor-
responding warning and indicator
light circuit check.
2. Shift the transmission into the neutral position.
NOTE:
When the transmission is in the neu-
tral position, the neutral indicator light
should be on, otherwise have a Yama-
ha dealer check the electrical circuit.
5-1

XT660Z 04-06 ING 11-03-2008 8:30 Pagina 5-1

PERIODIC MAINTENANCE AND MINOR REPAIR
EAU18722
Removing and installing the
cowling and panels
The cowling and panels shown need
to be removed to perform some of the
maintenance jobs described in this
chapter. Refer to this section each
time the cowling or a panel needs to
be removed and installed.
EAUB1540
Panel A and B
1. Panel mounting bolt
A. Right panel
B. Left panel
To remove one of the panels
Remove the bolts, and then pull the
panel off at the areas shown.

Panel C and D
1. Panel mounting bolt
C. Right panel
D. Left panel
To remove one of the panels
Remove the bolts, and then pull the
panel off at the areas shown.
T
o install the panel
Place the panel in the original position,
and then install the bolts.

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1. Panel
2. Turn signal light coupler
3. Pin
To install the panel
Place the panel in the original position,
and then install the bolts.

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