TABLE OF CONTENTS
LOCATION OF IMPORTANT LABELS...1-1
SAFETY INFORMATION ..................\r...2-1
Be a Responsible Owner ..................\r2-1
\fafe riding ..................\r..................\r.....2-1
\brotective apparel ..................\r...........2-2
Avoid Carbon Monoxide \boisoning ...2-2
Loading ..................\r..................\r.........2-3
Genuine Yamaha Accessories ..........2-3
Aftermarket \barts, Accessories, and Modifications ..................\r.....2-4
Aftermarket Tires and Rims ..............2-4
DESCRIPTION ..................\r..................\r.3-1
Left view ..................\r..................\r........3-1
Right view ..................\r..................\r.....3-2
Controls and instruments ..................\r3-3
INSTRUMENT AND CONTROL
FUNCTIONS ..................\r..................\r....4-1
Immobilizer system ..................\r.........4-1
Main switch/steering lock ..................\r4-2
Indicator and warning lights ..............4-3
Multi-function display ..................\r......4-5
Tachometer ..................\r..................\r...4-6
Tripmeter and tachometer modes .....4-6
Clock mode ..................\r..................\r...4-7
Fuel meter ..................\r..................\r.....4-7
\felf-diagnosis devices ..................\r....4-7 Handlebar switches ..................\r.........4-9
Clutch lever ..................\r..................\r.4-10
\fhift pedal ..................\r..................\r...4-10
Brake lever ..................\r..................\r..4-11
Brake pedal ..................\r..................\r.4-11
Fuel tank cap ..................\r................4-\r11
Fuel ..................\r..................\r.............4-12
Fuel tank breather hose ..................\r4-13
Catalytic converter ..................\r........4-13
\feat ..................\r..................\r.............4-14
Adjusting the front fork ..................\r..4-15
Adjusting the shock absorber
assembly ..................\r................4-\r16
\fidestand ..................\r..................\r....4-17
Ignition circuit cut-off system ..........4-17
FOR YOUR SAFETY -
PRE-OPERATION C\fECKS ...............5-1\r
\bre-operation check list ..................\r..5-2
OPERATION AND IMPORTANT
RIDING POINTS ..................\r................6-\r1
\ftarting the engine..................\r..........6-1
\fhifting ..................\r..................\r..........6-2
Tips for reducing fuel consumption ...6-3
Engine break-in ..................\r...............6-3\r
\barking ..................\r..................\r..........6-4 PERIODIC MAINTENANCE AND
ADJUSTMENT
..................\r..................\r.7-1
Owner’s tool kit ..................\r...............7-1\r
\beriodic maintenance chart for the emission control system.......7-2
General maintenance and lubrication chart ..................\r7-3
Removing and installing the cowling and panels ..............7-8
Checking the spark plug ..................\r.7-8
Engine oil and oil filter element.........7-9
Coolant ..................\r..................\r........7-12
Replacing the air filter element and cleaning the check hose ...7-14
Checking the engine idling speed ...7-15
Checking the throttle cable free play ..................\r.................7\r-16
Valve clearance ..................\r.............7-16
Tires ..................\r..................\r............7-16
\fpoke wheels..................\r................7-\r19
Adjusting the clutch lever free play ...7-20
Checking the front and rear brake pads ..................\r.............7-21
Checking the brake fluid level .........7-22
Changing the brake fluid .................7\r-23
Drive chain slack ..................\r...........7-23
Cleaning and lubricating the drive chain ..................\r........7-25
XT660Z 01-03 ING-AUS:AUSTRALIA 11-05-2009 9:57 Pagina 6
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INSTRUMENT \fND CONTRO\b FUNCTIONS
4-3
To unlock the steering
1\f Push
2\f Turn
Push the key into the \bain switch, and
then turn it to “OFF” while still pushing
it\f
EAU10941
F(Parking)
The steering is locked, and the tail-
light, license plate light and auxiliary
lights are on\f The hazard lights and
turn signal lights can be turned on, but
all other electrical syste\bs are off\f The
key can be re\boved\f
The steering \bust be locked before
the key can be turned to “ F”\f
ECA11020NOTICE
Do not use the parking position for
an extended length of time, other-
wise the battery may\ discharge.
EAU11004
Indicator and warning lights
1\f I\b\bobilizer syste\b indicator light “ ”
2\f Neutral indicator light “ N”
3\f Turn signal indicator light “ y”
4\f High bea\b indicator light “ 1”
5\f Engine trouble warning light “ U”
6\f Coolant te\bperature 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\f
The electrical circuit of the turn signal
indicator light can be checked by turn-
ing the key to "ON"\f
If the indicator light does not co\be on
for a few seconds, then go off, have a
Ya\baha dealer check the electrical cir-
cuit\f
XT660Z 04-04 ING-AUS:MY03 01-03 ING 11-05-2009 9:54 Pagina 4-3
INSTRUMENT AND CONTROL FUNCTIONS
4-4
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\f
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\b
10
EAUB1520
Neutral indicator light “ N”
This indica\for li\bh\f comes on when \fhe
\fransmission is in \fh\ae neu\fral posi\fion.
The elec\frical circui\f of \fhe neu\fral indi-
ca\for li\bh\f can be checked by \furnin\b
\fhe key \fo "ON". If \fhe indica\for li\bh\f
does no\f come on for a few seconds,
\fhen \bo off, have a Yamaha dealer
check \fhe elec\frical circui\f.
EAUB1530
High beam indicator light “ 1”
This indica\for li\bh\f comes on when \fhe
hi\bh beam of \fhe headli\bh\f is swi\fched
on. The elec\frical circui\f of \fhe hi\bh
beam indica\for li\bh\f can be checked
by \furnin\b \fhe key \fo "ON". If \fhe indi-
ca\for li\bh\f does no\f come on for a few
seconds, \fhen \bo off, have a Yamaha
dealer check \fhe elec\frical circui\f.
EAU11444
Coolant temperature warning
light “u”
This warnin\b li\bh\f comes on if \fhe en-
\bine overhea\fs. If \fhis occurs, s\fop \fhe
en\bine immedia\fely and allow \fhe en-
\bine \fo cool. The elec\frical circui\f of \fhe
warnin\b li\bh\f can be checked by \furn-
in\b \fhe key \fo "ON". The warnin\b li\bh\f
should come on for a few seconds, and \fhen \bo off. If \fhe warnin\b li\bh\f
does no\f come on ini\fially when \fhe
key is \furned \fo "ON", or if \fhe warnin\b
li\bh\f remains on, have a Yamaha deal-
er check \fhe elec\frical circui\f.
ECA10021
NOTICE
Do not continue to operate the en-
gine if it is overhea\4ting.
TIP
●For radia\for-fan-equipped vehi- cles, \fhe radia\for fan(s) au\foma\fi-
cally swi\fch on or off accordin\b \fo
\fhe coolan\f \fempera\fure in \fhe ra-
dia\for.
●If \fhe en\bine overhea\fs, see pa\be
7-41 for fur\fher ins\fruc\fions.
EAU11534
Engine trouble warning light “ U”
This warnin\b li\bh\f comes on or flashes
if a problem is de\fec\fed in \fhe elec\fri-
cal circui\f moni\forin\b \fhe en\bine. If \fhis
occurs, have a Yamaha dealer check
\fhe self-dia\bnosis sys\fem. (See pa\be
4-8 for an explana\fion of \fhe self-dia\b-
nosis device.) The elec\frical circui\f of
\fhe warnin\b li\bh\f can be checked by \furnin\b \fhe key \fo "ON". The warnin\b
li\bh\f should come on for a few seconds,
and \fhen \bo off. If \fhe warnin\b li\bh\f does
no\f come on ini\fially when \fhe key is
\furned \fo "ON", or if \fhe warnin\b li\bh\f re-
mains on, have a Yamaha dealer check
\fhe elec\frical circui\f.
EAU26876
Immobilizer system indicator
light “ ”
The elec\frical circui\f of \fhe indica\for
li\bh\f can be checked by \furnin\b \fhe
key \fo "ON". The indica\for li\bh\f should
come on for a few seconds, and \fhen
\bo off. If \fhe indica\for li\bh\f does no\f
come on ini\fially when \fhe key is
\furned \fo "ON", or if \fhe indica\for li\bh\f
remains on, have a Yamaha dealer
check \fhe elec\frical circui\f.
When \fhe key is \furned \fo "OFF" and
30 seconds have passed, \fhe indica\for
li\bh\f will s\far\f flashin\b indica\fin\b \fhe
immobilizer sys\fem is enabled. Af\fer
24 hours have passed, \fhe indica\for
li\bh\f will s\fop flashin\b, however \fhe im-
mobilizer sys\fem is s\fill en\aabled.
This model is also equipped wi\fh a
self-dia\bnosis device for \fhe immobi-
lizer sys\fem. (See pa\be 4-8 for an ex-
plana\fion of \fhe self-dia\bnosis device.)
XT660Z 04-04 ING-AUS:MY03 01-03 ING 11-05-2009 9:54 Pagina 4-4
your skin, wash with soap and
water. I\f gasoline spills on your
clothing, change your clothes.
EAU13390
ECA11400
\bse only unleaded gasoline. The use
o\f leaded gasoline will cause severe
damage to internal engine parts,
such as the valves and piston rings,
as well as to the exhaust system.
Your Yamaha en\fine has been \besi\f-
ne\b to use premium unlea\be\b \fasoli-
ne with a research octane number of
95 or hi\fher. If knockin\f (or pin\fin\f)
occurs, use a \fasoline of a \bifferent
bran\b. Use of unlea\be\b fuel will
exten\b spark plu\f life an\b re\buce
maintenance costs.
EAUB1300
Fuel tank breather/over\flow
hose
1. Fuel tank breather/hose
2. Hose clamp
Before operatin\f the motorcycle:
Check the fuel tank breather/over-
flow hose connection.
Check the fuel tank
breather/overflow hose for
cracks or \bama\fe, an\b replace it
if \bama\fe\b.
Make sure that the en\b of the fuel
tank breather/overflow hose is
not blocke\b, an\b clean it if
necessary.
Make sure that the en\b of the fuel
tank breather/overflow hose is
positione\b insi\be of the clamp.
EAU13433
Catalytic converters
This vehicle is equippe\b with catalytic
converters in the exhaust system.
EWA10862
The exhaust system is hot a\fter
operation. To prevent a \fire hazard
or burns:
Do not park the vehicle near
possible \fire hazards such as
grass or other materials that
easily burn.
Park the vehicle in a place
where pedestrians or children
are not likely to touch the hot
exhaust system.
Make sure that the exhaust
system has cooled down be\fo-
re doing any maintenance
work.
Do not allow the engine to idle
more than a \few minutes. Long
idling can cause a build-up o\f
heat.
WARNING
NOTICE
Recommended \fuel:PREMIUM UNLEADED
GASOLINE ONLY
Fuel tank capacity: 23.0 L (6.07 US \fal) (5.05 Imp.\fal)
Fuel reserve amount (when the
\fuel level warning light comes on): 6.7 L (1.77 US \fal) (1.47 Imp.\fal)
INSTR\bMENT AND CONTROL F\bNCTIONS
4-13
4
Australia 5/8/10 \g 16:16 Pági\fa 29
OPERATION AND IMPORTANT RIDING POINTS
3. Start the engine by pushing thestart switch.
TIP
\ff the engine fails to start\b release the
start switch\b wait a few seconds\b and
then try again. Each starting attempt
should be as short as possible to pre-
serve the battery. Do not crank the en-
gine more than 10 seconds on any one
attempt.
ECA11040
NOTICE
For max\fmum en\b\fne l\ffe, never ac-
celerate hard when the en\b\fne \fs
cold!
TIP
The engine is warm when it quickly re-
sponds to the thrott\cle.
EAU16671
Sh\fft\fn\b
1. Shift pedal
N. Neutral position
Shifting gears lets you control the
amount of engine power available for
star ting off\b accelerating\b climbing
hills\b etc.
The gear positions are shown in the il-
lustration.
TIP
To shift the transmission into the neu-
tral position\b press the shift pedal down
repeatedly until it reaches the end of its
travel\b and then slightly raise it.
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ECAB0070
NOTICE
The follow\fn\b warn\fn\b l\f\bhts and \fn-
d\fcator l\f\bhts should come on for a
few seconds, then \bo o\xff.
●Neutral \fnd\fcator l\f\b\xht
●Turn s\f\bnal \fnd\fcator l\f\bht\x
●H\f\bh beam \fnd\fcator l\f\b\xht
●En\b\fne trouble warn\fn\b l\f\bht
●Coolant temperature warn\fn\b
l\f\bht
●Immob\fl\fzer system \fnd\fcator
l\f\bht
If a warn\fn\b or \fnd\fcator l\f\bht does
not \bo off, see pa\be 4-3 for the cor-
respond\fn\b warn\fn\b and \fnd\fcator
l\f\bht c\frcu\ft check.
2. Shift the transmission into the neutral position.
TIP
When the transmission is in the neu-
tral position\b the neutral indicator light
should be on\b otherwise have a Yama-
ha dealer check the electrical circuit.
XT660Z 05-07 ING-AUS:MY03 04-06 ING 11-05-2009 10:09 Pagina 6
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PERIODIC M\fINTEN\fNCE \fND \fDJ\bSTMENT
7-57-5
EAUM1890
TIP
●Replace t\fe air filte\tr ele\bent \bore frequen\ttly if you are riding in unusually wet or dusty areas.
●Hydraulic brake service
●Regularly c\feck and, if necessary, correct t\fe brake fluid level.
●Every two years replace t\fe inter\tnal co\bponents of t\fe \tbrake \baster cylinder, and c\fange t\fe brake fluid.
●Replace t\fe brake \foses every four years and if cracked or da\baged.
NO. ITEMCHECK OR M\fINTEN\fNCE\M JOB
ODOMETER RE\fDING
1000 km 10000 km 20000 km 30000 km 40000 km(600 mi) (6000 mi) (12000 mi) (18000 mi) (24000 mi)
\fNN\b\fL
CHECK
√ √ √
√ √ √ √ √
√ √ √ √ √ √ √ √ √ √ √
√ √ √ √ √
√ √ √ √ √ √ Replace.
C\feck coolant level and ve\ficle for coolant leakage.
C\fange.
C\feck operation.
Lubricate.
C\feck operation and free play.
Adjust t\fe t\frottle cab\tle free play if necessary.
Lubricate t\fe t\frottle grip \fousing
and cable.
C\feck operation.
Adjust \feadlig\ft bea\b.\t
Engine oil filter
element
Cooling system
Front and rear brake
switches
Moving parts and
cables
Throttle grip housing
and cable
Lights, signals and
switches
Every 3 years
19
22 20
✻
21✻
24✻
23✻
XT660Z 05-07 ING-AUS:MY03 04-06 ING 11-05-2009 10:09 Pagina 7-5
PERIODIC MAINTENANCE AND ADJUSTMENT
7-8
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\f
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\b
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2. Remove the spark pl\fg as shown\b with the spark pl\fg wrench incl\fd-
ed in the owner’s tool kit.
To check the spark plug 1. Check that the porcelain ins\flator aro\fnd the center electrode of the
spark pl\fg is a medi\fm-to-light
tan (the ideal color when the vehi-
cle is ridden normally).
TIP
If the spark pl\fg shows a distinctly dif-
ferent color\b the engine co\fld be oper-
ating improperly. Do not attempt to di-
agnose s\fch problems yo\frself.
Instead\b have a Yamaha dealer check
the vehicle.
2. Check the spark pl\fg for elec- trode erosion and excessive car-
bon or other deposits\b and re-
place it if necessa\lry.
Specified spark plu\4g:CR7E (NGK)
Spark plug gap:0.7-0.8 mm (0.028-0\l.032 in)
To install the spark plug
1. Meas\fre the spark pl\fg gap with a wire thickness ga\fge and\b if
necessar y\b adj\fst the gap to
specification.
1. Spark pl\fg gap
2. Clean the s\frface of the sparkpl\fg gasket and its mating s\fr-
face\b and then wipe off any grime
from the spark pl\fg threads.
3. Install the spark pl\fg with the spark pl\fg wrench\b and then tight-
en it to the specif\lied torq\fe.
EAU19603
Checking the spark plug
The spark pl\fg is an important engine
component\b which is easy to check.
Since heat and deposits will ca\fse
any spark pl\fg to slowly erode\b the
spark pl\fg sho\fld be removed and
checked in accordance with the peri-
odic maintenance and l\fbrication
chart. In addition\b the condition of the
spark pl\fg can reveal the condition of
the engine.
To remove the spark plug
1. Spark pl\fg cap
2. Spark pl\fg wrench
1. Remove the spark pl\fg cap.
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INDEX
AAftermarket Parts, Accessories, and Modifications ...................................\f\.-4
Aftermarket Tires and \bims ...............\f-4
Air filter element, cleaning the check hose ....................................\...........7-14
Air filter element, replacing ..............7-14
Auxiliary light bulb, replacing............7-35
Avoid Carbon Monoxide poisoning ....\f-\f
B Battery ....................................\...........7-30 To access the battery ...................7-30
To charge the battery....................7-30
To store the battery.......................7-31
Be a \besponsible Owner ...................\f-1
Brake and clutch levers, checking and lubricating ..............................7-\f6\.
Brake fluid ....................................\.....7-\f\f Changing ....................................\...7-\f3
Checking fluid level .......................7-\f\f
Brake lever ....................................\....4-11
Brake pads, checking .......................7-\f1
Brake pedal ....................................\...4-11 Checking ....................................\....7-\f7
Lubricating ....................................\.7-\f7
C Cables, checking and lubricating .....7-\f5
Carbon Monoxide (avoid Carbon Monoxide poisoning).......................\f-\f
Care and storage ...............................8-1\. Catalytic converter ...........................4-13
Checking and lubricating the brake
and clutch levers ...........................7-\f6
Checking and lubricating the brake pedal ....................................\..........7-\f7
Checking and lubricating the cables..7-\f5
Checking and lubricating the sidestand ....................................\...7-\f7
Checking and lubricating the throttle grip and cable ...............................7-\f\.6
Checking the brake pedal ................7-\f7
Checking the sidestand switch .........4-18
Clock mode ....................................\.....4-7
Clutch lever ....................................\...4-10
Clutch lever free play, adjusting .......7-\f0
Consumer information ......................10-1
Controls and instruments ...................3-3 Function ....................................\.......4-1
Coolant ....................................\..........7-1\f
Coolant temperature warning light .....4-4
D Description ....................................\......3-1 Controls and instrument .................3-3
Left view....................................\.......3-1
\bight view ....................................\....3-\f
Dimmer switch....................................\.4-9
Drive chain, cleaning and lubricating ..............................7-\f5\.
Drive chain slack ..............................7-\f3\. Adjusting ....................................\....7-\f3
Checking ....................................\....7-\f3 Cleaning and lubricating ...............7-\f5
E Emission control system (periodic maintenance chart) .........................7-\f
Engine break-in ..................................6\.-3
Engine idling speed, adjusting .........7-15
Engine oil and oil filter element ..........7-9
Engine oil filter element....................7-10
Engine stop switch .............................4-9
Engine trouble warning light...............4-4
F For your safety - Pre-operation checks ....................................\..........5-1
Front fork ....................................\.......4-15 Adjusting ....................................\....4-15
Checking ....................................\....7-\f8
Front wheel ....................................\...7-36 Installing....................................\.....7-37
\bemoving....................................\...7-36
Fuel ....................................\...............4-1\f
Fuel consumption, tips for reducing ...6-3
Fuel meter ....................................\.......4-7
Fuel tank breather hose ...................4-13
Fuel tank cap ...................................4\.-11
Fuses, replacing ...............................7-3\.1
\f Genuine Yamaha Accessories ...........\f-3
H Handlebar switches ............................4-9
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