2013 YAMAHA XT660Z engine coolant

EAU20070
Coolant
The coolant level should be checked
before each ride. In addition, the coo-
lant must be changed at the intervals
specified in the periodic maintenance
and lubrication chart.
EAU20253
To check the coolant level
1. Place the vehicle on a level surface
and hold it in an upright position.
TIP
The coolant level must be chec-
ked on a cold engine since the
level varies with engine tempera-
ture.
Make sure that the vehicle is
positioned straight up when
checking the coolant level. A
slight tilt to the side can result in
a false reading.
2. Check the coolant level in the
coolant reservoir.
TIP
The coolant should be between the
minimum and maximum level marks.
1. Coolant reservoir
2. Maximum level mark
3. Minimum level mark
4. Coolant reservoir cap
3. If the coolant is at or below the
minimum level mark, remove
panel E (See page 6-8). , remove
the reservoir cap, add coolant to
the maximum level mark, and
then install the reservoir cap and
the panel. WARNING! Remove
only the coolant reservoir cap.
Never attempt to remove the
radiator cap when the engine is
hot.
[EWA15161]
NOTICE: If coolant is not avai-
lable, use distilled water or soft
tap water instead. Do not use
hard water or salt water since it
is harmful to the engine. If
water has been used instead of
coolant, replace it with coolant
as soon as possible, otherwise
the cooling system will not be
protected against frost and
corrosion. If water has been
added to the coolant, have a
Yamaha dealer check the anti-
freeze content of the coolant
as soon as possible, otherwise
the effectiveness of the coolant
will be reduced.
[ECA10472]
Coolant reservoir capacity (up to
the maximum level mark):
0.50 L (0.53 US qt, 0.44 Imp.qt)
PERIODIC MAINTENANCE AND ADJUSTMENT
6-14
6

EAU33031
Changing the coolant
The coolant must be changed at the
intervals specified in the periodic
maintenance and lubrication chart.
Have a Yamaha dealer change the
coolant. WARNING! Never attempt
to remove the radiator cap when
the engine is hot.
[EWA10381]EAUB1481
Replacing the air filter
element and cleaning the
check hose
The air filter element should be repla-
ced at the intervals specified in the
periodic maintenance and lubrication
chart. Replace the air filter element
more frequently if you are riding in
unusually wet or dusty areas. In addi-
tion, the air filter check hose must be
frequently checked and cleaned if
necessary.
To replace the air filter element
1. Remove the seat. (See page
3-16).
2. Remove the air filter case cover
by removing the screws.
1. Air filter case cover
2. Screw
3. Pull the air filter element out.
4. Insert a new air filter element into
the air filter case as shown.
NOTICE: Make sure that the air
filter element is properly sea-
ted in the air filter case. The
engine should never be opera-
ted without the air filter ele-
ment installed, otherwise the
piston(s) and/or cylinder(s)
may become excessively worn.
[ECA10481]
PERIODIC MAINTENANCE AND ADJUSTMENT
6-15
6

Engine overheatingEWA10400
Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be
blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.
After removing the radiator cap retaining bolt, place a thick rag, like a towel, over the radiator cap, and then
slowly rotate the cap counterclockwise to the detent to allow any residual pressure to escape. When the his-
sing sound has stopped, press down on the cap while turning it counterclockwise, and then remove the cap.
TIP
If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended
coolant as soon as possible.
Wait until the
engine has cooled.Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.
The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer checkand repair the cooling system.
Add coolant. (See TIP.)
Start the engine. If the engine overheats again, have a
Yamaha dealer check and repair the cooling system.
There is
leakage.
There is
no leakage.
WARNING
PERIODIC MAINTENANCE AND ADJUSTMENT
6-41
6

Dimensions:Overall length:
XT660Z 2246 mm (88.42 in)
XT660ZA 2260 mm (89.0 in)
Overall width:
900 mm (35.4 in)
Overall height:
XT660Z 1477 mm (57.1 in)
XT660ZA 1450 mm (57.1 in)
Seat height:
XT660Z 896 mm (35.27 in)
XT660ZA 865 mm (34.1 in)
Wheelbase:
XT660Z 1500 mm (59.05 in)
XT660ZA 1505 mm (59.3 in)
Ground clearance:
XT660Z 260 mm (10.23 in)
XT660ZA 205 mm (8.07 in)
Minimum turning radius:
1980 mm (78.0 in)
Weight:With oil and fuel:
XT660Z 208.5 kg (459 lb)
XT660ZA 215 kg (474 lb)
Engine:Engine type:
Liquid cooled 4-stroke, SOHC
Cylinder arrangement:
Forward-inclined single cylinder
Displacement:
660 cm
3
Bore x stroke:
100.0 x 84.0 mm (3.94 x 3.31 in)Compression ratio:
10.00 :1
Starting system:
Electric starter
Lubrication system:
Dry sump
Engine oil:Recommended brand:
YAMALUBE
Type:
SAE 10W-30, SAE 10W-40, SAE 15W-40,
SAE 20W-40 or SAE 20W-50
Recommended engine oil grade:
API service SE, SF, SG type or higher,
JASO standard MA
Engine oil quantity:Without oil filter element replacement:
2.50 L (2.64 US qt, 2.20 Imp.qt)
With oil filter element replacement:
2.60 L (2.75 US qt, 2.29 Imp.qt)
Cooling system:Coolant reservoir capacity (up to the maxi-
mum level mark):
0.50 L (0.53 US qt, 0.44 Imp.qt)
Radiator capacity (including all routes):
1.20 L (1.26 US qt, 1.05 Imp.qt)
Air filter:Air filter element:
Dry element
Fuel:Recommended fuel:
Premium unleaded gasoline only
Fuel tank capacity:
23.0 L (6.08 US gal, 5.06 Imp.gal)
Fuel reserve amount:
XT660Z 6.7 L (1.76 US gal, 1.46 Imp.gal)
XT660ZA 5.8 L (1.53 US gal, 1.28 Imp.gal)
Throttle body:ID mark:
5YK2 11
Spark plug(s):Manufacturer/model:
NGK/CR7E
Spark plug gap:
0.7–0.8 mm (0.028–0.031 in)
Clutch:Clutch type:
Wet. multiple-disc
Transmission:Primary reduction system:
Spur gear
-20 -10 0
10 20 30
40
50 ˚C
SAE 10W-30
SAE 15W-40
SAE 20W-40
SAE 20W-50
SAE 10W-40
SAE 10W-50
SPECIFICATIONS
8-1
8

Rear brake:Type:
Single disc brake
Operation:
Right foot operation
Recommended fluid:
DOT 4
Front suspension:Type:
Telescopic fork
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
XT660Z 210.0 mm (8.26 in)
XT660ZA 160.0 mm (6.30 in)
Rear suspension:Type:
Swingarm (link suspension)
Spring/shock absorber type:
Coil spring/gas-oil damper
Wheel travel:
XT660Z 200.0 mm (7.87 in)
XT660ZA 145.0 mm (5.71 in)
Electrical system:Ignition system:
TCI
Charging system:
AC magneto
Battery:Model:
GT9B-4
Voltage, capacity:
12 V, 8.0 Ah
Headlight:Bulb type:
Halogen bulb
Bulb voltage, wattage x quantity:Low beam headlight:
12 V, 55.0 W x 1
High beam headlight:
12 V, 55.0 W x 1
Tail/brake light:
LED
Front turn signal light:
12 V, 10.0 W x 2
Rear turn signal light:
12 V, 10.0 W x 2
Auxiliary light:
12 V, 5.0 W x 2
Meter lighting:
LED (backlight)
Neutral indicator light:
LED
High beam indicator light:
LED
Turn signal indicator light:
LED
Coolant temperature warning light:
LED
Engine trouble warning light:
LED
ABS warning light (for ABS models):
LED
Immobilizer system indicator light:
LED
Fuses:Main fuse:
30.0 A
Headlight fuse:
20.0 A
Signaling system fuse:
10.0 A
Ignition fuse:
10.0 A
Parking lighting fuse:
10.0 A
Radiator fan fuse:
7.5 A
Fuel injection system fuse:
10.0 A
ABS control unit fuse (for ABS models):
5.0 A
ABS motor fuse (for ABS models):
30.0 A
ABS solenoid fuse (for ABS models):
20.0 A
SPECIFICATIONS
8-3
8

INDEX
AABS (for ABS models)..............................3-12
ABS warning light (for ABS models) ..........3-5
Air filter element and check hose, replacing
and cleaning ..........................................6-15
Anti-theft alarm (optional) ..........................3-9
Auxiliary light bulb, replacing ...................6-34
BBattery......................................................6-29
Brake and clutch levers, checking and
lubricating ..............................................6-25
Brake fluid level, checking .......................6-21
Brake lever ...............................................3-11
Brake pedal ..............................................3-12
Brake pedal, checking and lubricating ....6-26
CCables, checking and lubricating ............6-25
Care............................................................7-1
Catalytic converters .................................3-16
Clutch lever ..............................................3-11
Clutch lever free play, adjusting...............6-20
Coolant.....................................................6-14
Coolant temperature warning light ............3-5
DDimmer switch .........................................3-10
Drive chain slack ......................................6-23
Drive chain, cleaning and lubricating.......6-24
EEngine break-in ..........................................5-3
Engine idling speed, checking .................6-16
Engine oil and oil filter element................6-11
Engine stop switch ..................................3-10
Engine trouble warning light ......................3-5
FFront and rear brake pads, checking ......6-21
Front fork, adjusting .................................3-17
Front fork, checking .................................6-27
Fuel ..........................................................3-14
Fuel consumption, tips for reducing ............5-
Fuel tank breather/overflow hose ............3-15
Fuel tank cap ...........................................3-13
Fuses, replacing .......................................6-31
HHandlebar switches ...................................3-9
Hazard switch ..........................................3-10
Headlight bulb, replacing .........................6-32
High beam indicator light...........................3-4
Horn switch ..............................................3-10
IIdentification numbers ...............................9-1
Ignition circuit cut-off system ..................3-20
Immobilizer system ....................................3-1
Immobilizer system indicator light .............3-6
Indicator and warning lights ......................3-4
LLicense plate light bulb, replacing ...........6-34
MMain switch/steering lock ..........................3-2
Maintenance and lubrication, periodic ......6-4
Maintenance, emission control system .....6-3
Matte color, caution ...................................7-1
Model label ................................................9-1
Multi-function display ................................3-6
NNeutral indicator light.................................3-4
PPanels, removing and installing .................6-8Parking .......................................................5-4
Part locations .............................................2-1
Pass switch ..............................................3-10
RRear suspension, lubricating ...................6-27
SSafety information ......................................1-1
Seat ..........................................................3-16
Shift pedal ................................................3-11
Shifting .......................................................5-2
Shock absorber assembly, adjusting.......3-18
Sidestand .................................................3-19
Sidestand, checking and lubricating .......6-26
Spark plug, checking .................................6-9
Specifications.............................................8-1
Start switch ..............................................3-10
Starting the engine.....................................5-1
Steering, checking ...................................6-28
Storage.......................................................7-3
Supporting the motorcycle ......................6-35
Swingarm pivots, lubricating ...................6-27
TTail/brake light ..........................................6-33
Throttle cable free play, checking ............6-17
Tool kit ........................................................6-1
Troubleshooting .......................................6-38
Troubleshooting charts ............................6-40
Turn signal indicator light ...........................3-4
Turn signal light bulb, replacing ...............6-34
Turn signal switch ....................................3-10
VValve clearance ........................................6-17
Vehicle identification number .....................9-1