IMPORTANT MANUAL INFORMATION
EAUB1011
XT660Z
OWNER'S MANUAL
©2010 by Yamaha Motor España S.A. 1
stedition, May 2010
All rights reserved.
Any reprinting or unauthorized use without the written permission of Yamaha Motor España S.A.is expressly prohibited. Printed in Spain.
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TABLE OF CONTENTS
LOCATION OF IMPORTANT LABELS...1-1
SAFETY INFORMATION.....................2-1
Be a Responsible Owner ..................2-1
Safe riding .........................................2-1
Protective apparel .............................2-2
Avoid Carbon Monoxide Poisoning ...2-2
Loading .............................................2-3
Genuine Yamaha Accessories ..........2-3
Aftermarket Parts, Accessories,
and Modifications .......................2-4
Aftermarket Tires and Rims ..............2-4
DESCRIPTION.....................................3-1
Left view ............................................3-1
Right view .........................................3-2
Controls and instruments ..................3-3
INSTRUMENT AND CONTROL
FUNCTIONS........................................4-1
Immobilizer system ...........................4-1
Main switch/steering lock ..................4-2
Indicator and warning lights ..............4-3
Multi-function display ........................4-5
Tachometer .......................................4-6
Tripmeter and tachometer modes .....4-6
Clock mode .......................................4-7
Fuel meter .........................................4-7
Self-diagnosis devices ......................4-7Handlebar switches ...........................4-9
Clutch lever .....................................4-10
Shift pedal .......................................4-10
Brake lever ......................................4-11
Brake pedal .....................................4-11
Fuel tank cap ..................................4-11
Fuel .................................................4-12
Fuel tank breather hose ..................4-13
Catalytic converter ..........................4-13
Seat .................................................4-14
Adjusting the front fork ....................4-15
Adjusting the shock absorber
assembly ..................................4-16
Sidestand ........................................4-17
Ignition circuit cut-off system ..........4-17
FOR YOUR SAFETY -
PRE-OPERATION CHECKS...............5-1
Pre-operation check list ....................5-2
OPERATION AND IMPORTANT
RIDING POINTS..................................6-1
Starting the engine............................6-1
Shifting ..............................................6-2
Tips for reducing fuel consumption ...6-3
Engine break-in .................................6-3
Parking ..............................................6-4PERIODIC MAINTENANCE AND
ADJUSTMENT.....................................7-1
Owner’s tool kit .................................7-1
Periodic maintenance chart for
the emission control system.......7-2
General maintenance
and lubrication chart ..................7-3
Removing and installing
the cowling and panels ..............7-8
Checking the spark plug ...................7-8
Engine oil and oil filter element.........7-9
Coolant ............................................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 ...................................7-16
Valve clearance ...............................7-16
Tires ................................................7-16
Spoke wheels..................................7-19
Adjusting the clutch lever free play...7-20
Checking the front and rear
brake pads ...............................7-21
Checking the brake fluid level .........7-22
Changing the brake fluid .................7-23
Drive chain slack .............................7-23
Cleaning and lubricating
the drive chain ..........................7-25
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SAFETY INFORMATION
EAU10313
Be a Responsible Owner
As the vehicle's owner, you are re-
sponsible for the safe and proper op-
eration of your motorcycle.
Motorcycles are single-track vehicles.
Their safe use and operation are de-
pendent upon the use of proper riding
techniques as well as the expertise of
the operator. Every operator should
know the following requirements be-
fore riding this motorcycle.
He or she should:
●Obtain thorough instructions from
a competent source on all as-
pects of motorcycle operation.
●Observe the warnings and main-
tenance requirements in this
Owner's Manual.
●Obtain qualified training in safe
and proper riding techniques.
●Obtain professional technical ser-
vice as indicated in this Owner's
Manual and/or when made nec-
essary by mechanical conditions.
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Safe riding
Perform the pre-operation checks each
time you use the vehicle to make sure it is
in safe operating condition. Failure to in-
spect or maintain the vehicle properly in-
creases the possibility of an accident or
equipment damage. See page 5-2 for a
list of pre-operation checks.
●This motorcycle is designed to carry
the operator and a passenger.
●The failure of motorists to detect and
recognize motorcycles in traffic is the
predominating cause of automo-
bile/motorcycle accidents. Many ac-
cidents have been caused by an
automobile driver who did not see
the motorcycle. Making yourself
conspicuous appears to be very
effective in reducing the chance
of this type of accident.
Therefore:
Wear a brightly colored jacket.
Use extra caution when you are
approaching and passing
through intersections, since in-
tersections are the most likely
places for motorcycle accidents
to occur. Ride where other motorists can
see you. Avoid riding in another
motorist's blind spot.
●Many accidents involve inexperi-
enced operators. In fact, many op-
erators who have been involved in
accidents do not even have a cur-
rent motorcycle license.
Make sure that you are quali-
fied and that you only lend your
motorcycle to other qualified
operators.
Know your skills and limits.
Staying within your limits may
help you to avoid an accident.
We recommend that you prac-
tice riding your motorcycle
where there is no traffic until
you have become thoroughly
familiar with the motorcycle and
all of its controls.
●Many accidents have been caused
by error of the motorcycle opera-
tor. A typical error made by the op-
erator is veering wide on a turn
due to excessive speed or under-
cornering (insufficient lean angle
for the speed).
Always obey the speed limit
and never travel faster than
warranted by road and traffic
conditions.
XT660Z 01-03 ING-AUS:AUSTRALIA 11-05-2009 9:57 Pagina 10
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SAFETY INFORMATION
products or having other modifications
performed to your vehicle that change
any of the vehicle's design or opera-
tion characteristics can put you and
others at greater risk of serious injury
or death. You are responsible for in-
juries related to changes in the vehi-
cle.
Keep the following guidelines in mind,
as well as those provided under
"Loading" when mounting acces-
sories.
●Never install accessories or carry
cargo that would impair the perfor-
mance of your motorcycle. Care-
fully inspect the accessory before
using it to make sure that it does
not in any way reduce ground
clearance or cornering clearance,
limit suspension travel, steering
travel or control operation, or ob-
scure lights or reflectors.
Accessories fitted to the han-
dlebar or the front fork area can
create instability due to improp-
er weight distribution or aerody-
namic changes. If accessories
are added to the handlebar or
front fork area, they must be aslightweight as possible and
should be kept to a minimum.
Bulky or large accessories may
seriously affect the stability of
the motorcycle due to aerody-
namic effects. Wind may at-
tempt to lift the motorcycle, or
the motorcycle may become
unstable in cross winds. These
accessories may also cause in-
stability 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
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.Aftermarket Tires and Rims
The tires and rims that came with your
motorcycle were designed to match
the performance capabilities and to
provide the best combination of han-
dling, braking, and comfort. Other
tires, rims, sizes, and combinations
may not be appropriate. Refer to page
7-16 for tire specifications and more
information on replacing your tires.
2-4
XT660Z 01-03 ING-AUS:AUSTRALIA 11-05-2009 9:57 Pagina 13
EWA10240
WARNING0
The vehicle must not be ridden
with the sidestand down, or if the
sidestand cannot be properly
moved up (or does not stay up),
otherwise the sidestand could con-
tact the ground and distract the
operator, resulting in a possible
loss of control. Yamaha’s ignition
circuit cut-off system has been de-
signed to assist the operator in ful-
filling the responsibility of raising
the sidestand before starting off.
Therefore, check this system regu-
larly as described below and have
a Yamaha dealer repair it if it does
not function properly.
EAU15301
Sidestand
1. Sidestand
The sidestand is located on the left
side of the frame. Raise the sidestand
or lower it with your foot while holding
the motorcycle upright.
TIP
The built-in sidestand switch is part of
the ignition circuit cut-off system,
which cuts the ignition in certain situa-
tions. (See further down for an expla-
nation of the ignition circuit cut-off sys-
tem.)
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INSTRUMENT AND CONTROL FUNCTIONS
4-17
EAU15314
Ignition circuit cut-off
system
The ignition circuit cut-off system
(comprising the sidestand switch,
clutch switch and neutral switch) has
the following functions.
●It prevents starting when the
transmission is in gear and the
sidestand is up, but the clutch
lever is not pulled.
●It prevents starting when the
transmission is in gear and the
clutch lever is pulled, but the side-
stand is still down.
●It cuts the running engine when
the transmission is in gear and
the sidestand is moved down.
Periodically check the operation of the
ignition circuit cut-off system accord-
ing to the following procedure.
TIP
This check is most reliable if per-
formed with a warmed-up engine.
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OPERATION AND IMPORTANT RIDING POINTS
3. Start the engine by pushing the
start switch.
TIP
If the engine fails to start, release the
start switch, wait a few seconds, 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 maximum engine life, never ac-
celerate hard when the engine is
cold!
TIP
The engine is warm when it quickly re-
sponds to the throttle.
EAU16671
Shifting
1. Shift pedal
N. Neutral position
Shifting gears lets you control the
amount of engine power available for
starting off, accelerating, climbing
hills, etc.
The gear positions are shown in the il-
lustration.
TIP
To shift the transmission into the neu-
tral position, press the shift pedal down
repeatedly until it reaches the end of its
travel, and then slightly raise it.
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ECAB0070
NOTICE
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 4-3 for the cor-
responding warning and indicator
light circuit check.
2. Shift the transmission into the
neutral position.
TIP
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.
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PERIODIC MAINTENANCE AND ADJUSTMENT
7-25
EAU23023
Cleaning and lubricating
the drive chain
The drive chain must be cleaned and
lubricated at the intervals specified in
the periodic maintenance and lubrica-
tion chart, otherwise it will quickly
wear out, especially when riding in
dusty or wet areas. Service the drive
chain as follows.
ECA10581
NOTICE
The drive chain must be lubricated
after washing the motorcycle and
riding in the rain.
1. Clean the drive chain with kerosene
and a small soft brush. NOTICE:
To prevent damaging the O-
rings, do not clean the drive
chain with steam cleaners,
high-pressure washers or inap-
propriate solvents.2. Wipe the drive chain dry.
3. Thoroughly lubricate the drive
chain with a special O-ring chain
lubricant. NOTICE:Do not use
engine oil or any other lubri-
cants for the drive chain, as
they may contain substances
that could damage the O-rings.
EAU23101
Checking and lubricating
the cables
The operation of all control cables and
the condition of the cables should be
checked before each ride, and the ca-
bles and cable ends should be lubri-
cated if necessary. If a cable is dam-
aged or does not move smoothly, have
a Yamaha dealer check or replace it.
WARNING! Damage to the outer
sheath may interfere with proper
cable operation and will cause the
inner cable to rust. Replace a dam-
aged cable as soon as possible to
prevent unsafe conditions.
Recommended lubricant:
Engine oil
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MOTORCYCLE CARE AND STORAGE
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EAU26004
Care
While the open design of a motorcycle
reveals the attractiveness of the tech-
nology, it also makes it more vulnera-
ble. Rust and corrosion can develop
even if high-quality components are
used. A rusty exhaust pipe may go un-
noticed on a car, however, it detracts
from the overall appearance of a mo-
torcycle. Frequent and proper care
does not only comply with the terms of
the warranty, but it will also keep your
motorcycle looking good, extend its
life and optimize its performance.
Before cleaning
1. Cover the muffler outlet with a
plastic bag after the engine has
cooled down.
2. Make sure that all caps and cov-
ers as well as all electrical cou-
plers and connectors, including
the spark plug cap, are tightly in-
stalled.3. Remove extremely stubborn dirt,
like oil burnt onto the crankcase,
with a degreasing agent and a
brush, but never apply such prod-
ucts onto seals, gaskets, sprockets,
the drive chain and wheel axles. Al-
ways rinse the dirt and degreaser
off with water.
Cleaning
ECA10772
NOTICE
●Avoid using strong acidic
wheel cleaners, especially on
spoked wheels. If such prod-
ucts are used on hard-to-re-
move dirt, do not leave the
cleaner on the affected area
any longer than instructed. Al-
so, thoroughly rinse the area
off with water, immediately dry
it, and then apply a corrosion
protection spray.
●Improper cleaning can damage
plastic parts (such as cowlings,
panels, windshields, headlight
lenses, meter lenses, etc.) and
the mufflers. Use only a soft,
clean cloth or sponge with wa-ter to clean plastic. However, if
the plastic parts cannot be
thoroughly cleaned with water,
diluted mild detergent with wa-
ter may be used. Be sure to
rinse off any detergent residue
using plenty of water, as it is
harmful to plastic parts.
●Do not use any harsh chemical
products on plastic parts. Be
sure to avoid using cloths or
sponges which have been in
contact with strong or abrasive
cleaning products, solvent or
thinner, fuel (gasoline), rust re-
movers or inhibitors, brake flu-
id, antifreeze or electrolyte.
●Do not use high-pressure
washers or steam-jet cleaners
since they cause water seep-
age and deterioration in the fol-
lowing areas: seals (of wheel
and swingarm bearings, fork
and brakes), electric compo-
nents (couplers, connectors,
instruments, switches and
lights), breather hoses and
vents.
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