2010 YAMAHA XT660Z radiator

INSTRUMENT AND CONTROL FUNCTIONS
4-4
1
2
3
4
5
6
7
8
9
10
EAUB1520
Neutral indicator light “ N”
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 circuit.
EAUB1530
High beam indicator light “1”
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 turning the key to "ON". If the indi-
cator light does not come on for a few
seconds, then go off, have a Yamaha
dealer check the electrical circuit.
EAU11444
Coolant temperature warning
light “u”
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 turn-
ing 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 deal-
er check the electrical circuit.
ECA10021
NOTICE
Do not continue to operate the en-
gine if it is overheating.
TIP
●For radiator-fan-equipped vehi-
cles, the radiator fan(s) automati-
cally switch on or off according to
the coolant temperature in the ra-
diator.
●If the engine overheats, see page
7-41 for further instructions.
EAU11534
Engine trouble warning light “U”
This warning light comes on or flashes
if a problem is detected in the electri-
cal circuit monitoring the engine. If this
occurs, have a Yamaha dealer check
the self-diagnosis system. (See page
4-8 for an explanation of the self-diag-
nosis device.) The electrical circuit of
the warning light can be checked byturning 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 re-
mains on, have a Yamaha dealer check
the electrical circuit.
EAU26876
Immobilizer system indicator
light “ ”
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.
When the key is turned to "OFF" and
30 seconds have passed, the indicator
light will start flashing indicating the
immobilizer system is enabled. After
24 hours have passed, the indicator
light will stop flashing, however the im-
mobilizer system is still enabled.
This model is also equipped with a
self-diagnosis device for the immobi-
lizer system. (See page 4-8 for an ex-
planation of the self-diagnosis device.)
XT660Z 04-04 ING-AUS:MY03 01-03 ING 11-05-2009 9:54 Pagina 4-4

1
2
3
4
5
6
7
8
9
10
PERIODIC MAINTENANCE AND ADJUSTMENT
7-13
TIP
The coolant should be between the
minimum and maximum level marks.
1. Coolant reservoir
2. Maximum level mark
3. Minimum level mark
4. Reservoir cap
3. If the coolant is at or below the
minimum level mark, remove pan-
el E (See page 7-7.), remove the
reservoir cap, add coolant to the
maximum level mark, and then in-
stall the reservoir cap and the
panel. WARNING! Remove only
the coolant reservoir cap. Nev-
er attempt to remove the radia-
tor cap when the engine is hot.
NOTICE:If coolant is not avail-
able, use distilled water or soft
tap water instead. Do not use
hard water or salt water since it
is harmful to the engine. If wa-
ter 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 an-
tifreeze content of the coolant
as soon as possible, otherwise
the effectiveness of the coolant
will be reduced.
Coolant reservoir capacity
(up to the maximum level mark):
0.50 L (0.52 US qt) (0.44 Imp.
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.
XT660Z 05-07 ING-AUS:MY03 04-06 ING 11-05-2009 10:09 Pagina 7-13

PERIODIC MAINTENANCE AND ADJUSTMENT
7-32
1
2
3
4
5
6
7
8
9
10
ECA10640
NOTICE
Do not use a fuse of a higher am-
perage rating than recommended
to avoid causing extensive damage
to the electrical system and possi-
bly a fire.
3. Turn the key to “ON” and turn on
the electrical circuit in question to
check if the device operates.
4. If the fuse immediately blows
again, have a Yamaha dealer
check the electrical system.
1. Parking lighting fuse
2. Signaling system fuse
3. Headlight fuse
4. Ignition fuse
5. Electronic fuel injection fuse
6. Radiator fan fuse
7. Backup fuse
8. Reserve fuses
The main fuse and fuse box are locat-
ed under the seat. (See page 7-31.)
If a fuse is blown, replace it as follows.
1. Turn the key to “OFF” and turn off
the electrical circuit in question.
2. Remove the blown fuse, and then
install a new fuse of the specified
amperage.
7
8
654321Specified fuses:
Main fuse:
30 A
Parking lighting fuse:
10 A
Signalling system fuse:
10 A
Headlight fuse:
20 A
Ignition fuse:
10 A
Fuel injection system fuse:
10 A
Radiator fan fuse:
7.5 A
Backup fuse (for odometer,
clock and immobilizer):
10 A
XT660Z 05-07 ING-AUS:MY03 04-06 ING 11-05-2009 10:10 Pagina 7-32

1
2
3
4
5
6
7
8
9
10
PERIODIC MAINTENANCE AND ADJUSTMENT
7-41
Engine overheatingEWA10400
WARNING0
●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 hiss-
ing 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 low.
Check the cooling
system for leakage.
The coolant level
is OK.
There is
leakage.
There is no
leakage.
Have a Yamaha dealer check
and repair the cooling system.
Start the engine. If the engine overheats again, have
a Yamaha dealer check and repair the cooling system.
Add coolant. (See TIP.)
XT660Z 05-07 ING-AUS:MY03 04-06 ING 11-05-2009 10:10 Pagina 7-41

SPECIFICATIONS
9-1
1
2
3
4
5
6
7
8
9
10
Engine oil:Type:
SAE10W30 or SAE10W40 or SAE15W40
or SAE20W40 or SAE20W50
Recommended engine oil grade:
API service SE, SF, SG type or higher
Engine oil quantity:
Without oil filter element replacement:
2.50 L (2.64 US qt) (2.19 Imp.qt)
With oil filter element replacement:
2.60 L (2.73 US qt) (2.26 Imp.qt)
Total amount (dry engine):
2.90 L (3.07 US qt) (2.55 Imp.qt)
Cooling system:Radiator capacity (including all routes):
1.2 L (1.26 US qt) (1.05 Imp.qt) (Radiator) +
0.5 L (0.52 US qt) (0.44 Imp.qt)
(Coolant reservoir)
Coolant reservoir capacity (up to the
maximum level mark):
0.50 L (0.52 US qt) (0.44 Imp.qt)
From low to full level:
0.30 L (0.32 US qt) (0.26 Imp.qt)
Air filter:Air filter element:
Paper
Fuel:Recommended fuel:
Premium unleaded gasoline only
Fuel tank capacity:
23.0 L (6.07 US gal) (5.06 Imp.gal)
Fuel reserve amount:
6.7 L (1.76 US gal) (1.46 Imp.gal)
Fuel injection:Manufacturer:
DENSO
Model:
297500-0390
Spark plug:Manufacturer/model:NGK/CR7EGap:
0.7-0.8 mm (0.028-0.032 in)
Clutch:Clutch type:
Wet, multiple-disc
Transmission:Primary reduction system:
Spur gear
Primary reduction ratio:
75/36 (2.083)
Secondary reduction system:
Chain drive
Secondary reduction ratio:
45/15 (3.00)
Transmission type:
Constant mesh 5-speed
Dimensions:Overall length:
2246 mm (88.42 in)
Overall width:
864 mm (34.01 in)
Overall height:
1477 mm (58.14 in)
Seat height:
896 mm (35.27 in)
Wheelbase:
1500 mm (59.05 in)
Ground clearance:
260 mm (10.23 in)
Minimum turning radius:
1958 mm (77.08 in)
Basic weight:With oil and fuel:
208.5 kg (459 lb)
Engine:Engine type:
Liquid cooled 4-stroke, SOHC
Cylinder arrangement:
Forward-inclined single cylinder
Displacement:
660.0 cm
3(40.27 cu.in)
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
-20-10 0 1020304050°C
SAE 10W-30
SAE 10W-40
SAE 20W-40
SAE 20W-50
SAE 15W-40
XT660Z 08-10 ING-AUS:MY03 07-10 ING 11-05-2009 10:10 Pagina 6

SPECIFICATIONS
9-3
1
2
3
4
5
6
7
8
9
10
Rear suspension:
Type:
Swingarm (link suspension)
Spring/damper type:
Coil spring/gas-oil damper, spring
preload adjustable
Wheel travel:
200 mm (7.87 in)
Electrical system:
Ignition system:
Transistorized coil ignition (digital)
Charging system:
A.C. magneto
Battery:
Model:
GT9B-4
Voltage, capacity:
12 V, 8 Ah
Headlight:
Bulb type:
Halogen bulb
Bulb voltage, wattage x quantity:Headlight:
12 V, 55 W x 2
Auxiliary light:
12 V, 5 W x 2
Tail/brake light:
LED
Front turn signal light:
12 V, 10 W x 2
Rear turn signal light:
12 V, 10 W x 2
Meter lighting:
LED (backlight)Neutral indicator light:
LED
Turn signal indicator light:
LED
High beam indicator light:
LED
Coolant temperature warning light:
LED
Engine trouble warning light:
LED
Immobilizer system indicator light:
LED
Fuses:Main fuse:
30 A
Headlight fuse:
20 A
Signaling system fuse:
10 A
Ignition fuse:
10 A
Parking lighting fuse:
10 A
Radiator fan fuse:
7.5 A
Fuel injection system fuse:
10 A
Backup fuse (for odometer, clock and
immobilizer):
10 A
XT660Z 08-10 ING-AUS:MY03 07-10 ING 11-05-2009 10:10 Pagina 8