2015 YAMAHA XT660Z brake
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TABLE OF CONTENTSSAFETY INFORMATION.................. 1-1
DESCRIPTION.................................. 2-1
Left view ......................................... 2-1
Right view ....................................... 2-3
Controls and instruments ............... 2-5
INSTRUMENT AND CONTROL
FUNCTIONS...................................... 3-1
Immobilizer system......................... 3-1
Main switch/steering lock............... 3-2
Indicator lights and warning
lights............................................ 3-4
Multi-function display ..................... 3-6
Handlebar switches ........................ 3-9
Clutch lever .................................. 3-10
Shift pedal .................................... 3-11
Brake lever.................................... 3-11
Brake pedal .................................. 3-11
ABS (for ABS models) .................. 3-12
Fuel tank cap ................................ 3-13
Fuel ............................................... 3-13
Fuel tank breather/overflow
hose .......................................... 3-15
Catalytic converter ....................... 3-15
Seat .............................................. 3-16
Adjusting the front fork ................. 3-16
Adjusting the shock absorber
assembly ................................... 3-18
Sidestand ..................................... 3-19
Ignition circuit cut-off system ....... 3-19FOR YOUR SAFETY –
PRE-OPERATION CHECKS............. 4-1
OPERATION AND IMPORTANT
RIDING POINTS................................ 5-1
Starting the engine .......................... 5-1
Shifting ............................................ 5-2
Tips for reducing fuel
consumption ................................ 5-3
Engine break-in ............................... 5-3
Parking ............................................ 5-4
PERIODIC MAINTENANCE AND
ADJUSTMENT................................... 6-1
Owner’s tool kit ............................... 6-2
Periodic maintenance chart for the
emission control system .............. 6-3
General maintenance and
lubrication chart ........................... 6-4
Removing and installing panels ...... 6-8
Checking the spark plug ................. 6-9
Engine oil and oil filter element ..... 6-10
Coolant.......................................... 6-13
Replacing the air filter element
and cleaning the check hose..... 6-14
Adjusting the engine idling
speed ......................................... 6-16
Checking the throttle grip free
play ............................................ 6-16
Valve clearance ............................. 6-17
Tires .............................................. 6-17Spoke wheels ............................... 6-19
Adjusting the clutch lever free
play ............................................ 6-20
Checking the front and rear brake
pads .......................................... 6-21
Checking the brake fluid level ...... 6-21
Changing the brake fluid .............. 6-23
Drive chain slack........................... 6-23
Cleaning and lubricating the drive
chain.......................................... 6-24
Checking and lubricating the
cables ........................................ 6-25
Checking and lubricating the
throttle grip and cable ............... 6-25
Checking and lubricating the
brake and clutch levers ............. 6-26
Checking and lubricating the
brake pedal ............................... 6-26
Checking and lubricating the
sidestand................................... 6-27
Lubricating the rear suspension ... 6-27
Lubricating the swingarm
pivots......................................... 6-27
Checking the front fork ................. 6-28
Checking the steering................... 6-28
Checking the wheel bearings ....... 6-29
Battery .......................................... 6-29
Replacing the fuses ...................... 6-31
Replacing a headlight bulb ........... 6-32
Replacing an auxiliary light bulb ... 6-34
Tail/brake light .............................. 6-34U2BDE1E0.book Page 1 Tuesday, December 16, 2014 5:38 PM
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DESCRIPTION
2-3
2
EAU32231
Right viewXT660Z
1
2
3
4
5
6
7
8
9
1. Grab bar
2. Main fuse (page 6-31)
3. Battery (page 6-29)
4. Rear brake fluid reservoir (page 6-21)
5. Coolant reservoir (page 6-13)
6. Front brake fluid reservoir (page 6-21)
7. Coolant drain bolt (page 6-14)8. Engine oil filter element (page 6-10)
9. Brake pedal (page 3-11)
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Page 16 of 98
DESCRIPTION
2-4
2XT660ZA
12 3 4 5 6
7 8 9 10
1. Rear brake fluid reservoir (page 6-21)
2. Fuse box 2 (page 6-31)
3. Owner’s tool kit (page 6-2)
4. Coolant reservoir (page 6-13)
5. Battery (page 6-29)
6. Front brake fluid reservoir (page 6-21)
7. Coolant drain bolt (page 6-14)
8. Engine oil filter element (page 6-10)
9. Brake pedal (page 3-11)10.Rear wheel hubU2BDE1E0.book Page 4 Tuesday, December 16, 2014 5:38 PM
Page 17 of 98
DESCRIPTION
2-5
2
EAU10431
Controls and instruments1. Clutch lever (page 3-10)
2. Left handlebar switches (page 3-9)
3. Multi-function display (page 3-6)
4. Right handlebar switches (page 3-9)
5. Throttle grip (page 6-16)
6. Brake lever (page 3-11)
7. Engine oil filler cap (page 6-10)
8. Fuel tank cap (page 3-13)9. Main switch/steering lock (page 3-2)
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Page 21 of 98
INSTRUMENT AND CONTROL FUNCTIONS
3-4
3
EAU49398
Indicator lights and warning
lights
EAUB1512
Turn signal indicator light “ ”
This indicator light flashes when a turn
signal light is flashing.
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.
EAUB1521
Neutral indicator light “ ”
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.
EAUB1531
High beam indicator light “ ”
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 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.
EAU11447
Coolant temperature warning
light “ ”
This warning light comes on if the en-
gine overheats. If this occurs, stop the
engine immediately and allow the en-
gine to cool.
The electrical circuit of the warning
light can be checked by turning the key
to “ON”. The warning light should
come on for a few seconds, and then
go off.
If the warning light does not come on
initially when the key is turned to “ON”,
or if the warning light remains on, have
a Yamaha dealer check the electrical
circuit.NOTICE
ECA10022
Do not continue to operate the en-
gine if it is overheating.TIPFor radiator-fan-equipped vehi-
cles, the radiator fan(s) automati-
cally switch on or off according to
the coolant temperature in the ra-
diator.
1. Anti-lock Brake System (ABS) warning
light “ ” (for ABS models)
2. Immobilizer system indicator light “ ”
3. Neutral indicator light “ ”
4. Turn signal indicator light “ ”
5. High beam indicator light “ ”
6. Engine trouble warning light “ ”
7. Coolant temperature warning light “ ”
ABS
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Page 22 of 98
INSTRUMENT AND CONTROL FUNCTIONS
3-5
3If the engine overheats, see page
6-41 for further instructions.
EAU11535
Engine trouble warning light “ ”
This warning light comes on or flashes
if a problem is detected in the electrical
circuit monitoring the engine. If this oc-
curs, have a Yamaha dealer check the
self-diagnosis system. (See page 3-8
for an explanation of the self-diagnosis
device.)
The electrical circuit of the warning
light can be checked by turning the key
to “ON”. The warning light should
come on for a few seconds, and then
go off.
If the warning light does not come on
initially when the key is turned to “ON”,
or if the warning light remains on, have
a Yamaha dealer check the electrical
circuit.
EAU11546
ABS warning light “ ” (for ABS
models)
If this warning light comes on or flashes
while riding, the ABS may not work
correctly. If this occurs, have a Yamaha
dealer check the system as soon aspossible. (See page 3-12.)
WARNING
EWA10082
If the ABS warning light comes on or
flashes while riding, the brake sys-
tem reverts to conventional braking.
Therefore, be careful not to cause
the wheels to lock during emergen-
cy braking. If the warning light
comes on or flashes while riding,
have a Yamaha dealer check the
brake system as soon as possible.The electrical circuit of the warning
light can be checked by turning the key
to “ON”. The warning light should
come on for a few seconds, and then
go off.
If the warning light does not come on
initially when the key is turned to “ON”,
or if the warning light remains on, have
a Yamaha dealer check the electrical
circuit.
EAU26879
Immobilizer system indicator
light “ ”
When the key is turned to “OFF” and
30 seconds have passed, the indicator
light will start flashing indicating the im-mobilizer system is enabled. After 24
hours have passed, the indicator light
will stop flashing, however the immobi-
lizer system is still enabled.
The electrical circuit of the indicator
light can be checked by turning the key
to “ON”. The indicator light should
come on for a few seconds, and then
go off.
If the indicator light does not come on
initially when the key is turned to “ON”,
or if the indicator light remains on, have
a Yamaha dealer check the electrical
circuit.
The self-diagnosis device also detects
problems in the immobilizer system
circuits. (See page 3-8 for an explana-
tion of the self-diagnosis device.)
ABS
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Page 25 of 98
INSTRUMENT AND CONTROL FUNCTIONS
3-8
3 5. Push the “SELECT” button and
then release it to start the clock.
Fuel meter
With the key in the “ON” position, the
fuel meter indicates the amount of fuel
in the fuel tank. When the key is turned
to “ON”, all of the display segments of
the fuel meter appear one after the oth-
er and then disappear in order to test
the electrical circuit. The display seg-
ments of the fuel meter disappear to-
wards “E” (Empty) as the fuel level
decreases. When only one segment is
left near “E” (Empty), refuel as soon as
possible.
TIPThis fuel meter is equipped with a self-
diagnosis system. If the electrical cir-
cuit is defective, all the segments start
flashing. If this occurs, have a Yamaha
dealer check the electrical circuit.Self-diagnosis devices
This model is equipped with a self-di-
agnosis device for various electrical
circuits.
If any engine electrical circuits are de-
fective, the engine trouble warning light
starts flashing. If this occurs, have a
Yamaha dealer check the vehicle.(for ABS models)
If any of the ABS electrical circuits are
defective, the ABS warning light will
come on. If this occurs, have a Yamaha
dealer check the vehicle.
This model is also equipped with a self-
diagnosis device for the immobilizer
system.
If any of the immobilizer system circuits
are defective, the immobilizer system
indicator light starts flashing. If this oc-
curs, have a Yamaha dealer check the
vehicle.
TIPIf 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.
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
1. Fuel meter
1. Anti-lock Brake System (ABS) warning
light Ž (for ABS models)
2. Immobilizer system indicator light Ž
3. Engine trouble warning light Ž
ABS
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INSTRUMENT AND CONTROL FUNCTIONS
3-11
3
EAU12872
Shift pedalThe shift pedal is located on the left
side of the motorcycle and is used in
combination with the clutch lever when
shifting the gears of the 5-speed con-
stant-mesh transmission equipped on
this motorcycle.
EAU26825
Brake leverThe brake lever is located on the right
side of the handlebar. To apply the
front brake, pull the lever toward the
throttle grip.
The brake lever is equipped with a
brake lever position adjusting dial. To
adjust the distance between the brake
lever and the throttle grip, turn the ad-
justing dial while holding the lever
pushed away from the throttle grip.
Make sure that the appropriate setting
on the adjusting dial is aligned with
the “ ” mark on the brake lever.
EAU12944
Brake pedalThe brake pedal is located on the right
side of the motorcycle. To apply the
rear brake, press down on the brake
pedal.
1. Shift pedalZAUM1260
1. Brake lever
2. Position adjusting dial
3. Arrow mark
4. Distance between brake lever and handle-
bar grip
11
1
ZAUM1251
1. Brake pedal
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