
PERIODIC MAINTENANCE AND ADJUSTMENT
7-36
1
2
3
4
\f
6
7
8
\b
10
To service the rear wheel
Raise the rear wheel off the grou\fd by
usi\fg a \botorcycle sta\fd or, if a \bo-
torcycle sta\fd is \fot available, by plac-
i\fg a jack either u\fder each side of the
fra\be i\f fro\ft of the rear wheel or u\f-
der each side of t\uhe swi\fgar\b.EAU24360
Front wheelEAUB1440To remove the front wheel
EWA10820
WARNING0
●It is advisable to have a Yama-
ha dealer service t\4he wheel.
●Securely support the motorcy-
cle so that there is no danger of
it falling over.
1. Wheel axle
2. Brake caliper bolts
A. Fro\ft wheel axle pi\fch bolt
B. Fro\ft wheel axle pi\fch bolt
A
2
B
1
EAU24350
Supporting the motorcycle
Si\fce this \bodel is \fot equipped with
a ce\ftersta\fd, follow these precau-
tio\fs whe\f re\bovi\fg the fro\ft a\fd rear
wheel or perfor\bi\fg other \bai\fte-
\fa\fce requiri\fg the \botorcycle to
sta\fd upright. Check that the \botorcy-
cle is i\f a stable a\fd level positio\f be-
fore star ti\fg a\fy \bai\fte\fa\fce. A
stro\fg woode\f box ca\f be placed u\f-
der the e\fgi\fe for added stability.
To service the front wheel 1. Stabilize the rear of the \botorcy- cle by usi\fg a \botorcycle sta\fd
or, if a\f additio\fal \botorcycle
sta\fd is \fot available, by placi\fg a
jack u\fder the fra\be i\f fro\ft of the
rear wheel.
2. Raise the fro\ft wheel off the grou\fd by usi\fg a \botorcycle
sta\fd.
XT660Z 05-07 ING-AUS:MY03 04-06 ING 11-05-2009 10:10 Pagina 7-36

1
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5
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7
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10
PERIODIC M\fINTEN\fNCE \fND \fDJ\bSTMENT
7-37
1. Loosen the front wheel axle \finchbolts\b the wheel axle and the
brake cali\fer bolts.
2. Lift the front wheel off the ground according to the \frocedure on
\fage 7-36.
3. Remove the brake cali\fer on each side by removing the bolts.
ECA11050
NOTICE
Do not apply the brake after the
brake calipers have been removed,
otherwise the brake pads will be
forced shut.
4. Pull the wheel axle out\b and then remove the wheel.
EAUB1470
To install the front wheel1. Lift the wheel u\f between the fork legs.
2. Insert the wheel axle.
3. Install the brake cali\fers by in- stalling the bolts.
TIP
Make sure that there is enough s\face
between the brake \fads before in-
stalling the brake cali\fers onto the
brake discs.
4. Lower the front wheel so that it is on the ground.
5. Tighten the wheel axle and the brake cali\fer bolts to the s\fecified
torques.
ECAB0060
NOTICE
Be sure the right brake disc is posi-
tioned exactly in the middle of the
caliper pads to prevent any brake
drag. Tap the side of the right fork
leg to position th\Me disc correctly.
Tightening torques: Wheel axle:60 Nm (6.0 m·kgf\b 44 ft·lbf)
Front wheel axle \fin\xch bolt: 18 Nm (1.8 m·kgf\b 13 ft·lbf)
Brake cali\fer bolt: 40 Nm (4.0 m·kgf\b 29 ft·lbf)
6. Tighten wheel axle \finch bolt A\b and then \finch bolt B to the s\fec-
ified torque.
7. Retighten \finch bolt A to the s\fecified torque.
8. A\f\fly the front brake several times\b and then while holding the
brake lever in\b \fush down hard on
the handlebar several times to
check for \fro\fer fork o\feration.
XT660Z 05-07 ING-AUS:MY03 04-06 ING 11-05-2009 10:10 Pagina 7-37

PERIODIC MAINTENANCE AND ADJUSTMENT
7-38
1
2
3
4
\f
6
7
8
\b
10
TIP
●If the drive chain is difficu\ft to re-
move, remove the \bhee\f ax\fe first,
and then \fift the \bhee\f up\bard
enough to remove the drive chain
from the rear sprocket.
●The drive chain cannot be disas-
semb\fed.
7. Whi\fe suppor ting the brake ca\fiper bracket, pu\f\f the \bhee\f
ax\fe out, and then remove the
\bhee\f. NOTICE: Do not apply
the brake after the wheel has
been removed together with
the brake disc, otherwise the
brake pads will be\4 forced shut.
EAUB1450
To install the rear wheel 1. Insta\f\f the \bhee\f and the brake ca\fiper bracket by inserting the
\bhee\f ax\fe from the right-hand
side.
EAU25080
Rear wheelEAU25312
To remove the rear wheelEWA10821
WARNING0
To avoid injury, securely support
the vehicle so there is no danger of
it falling over.
1. Whee\f ax\fe nut
2. Drive chain s\fack adjusting bo\ft
3. Locknut
4. Drive chain
3
4
1
1. Whee\f ax\fe
2. Drive chain s\fack adjusting bo\ft
3. Locknut
4. Brake ca\fiper
1. Loosen the ax\fe nut.
2. Lift the rear \bhee\f off the groundaccording to the procedure on
page 7-36.
3. Remove the ax\fe nut.
4. Loosen the \focknut on each side of the s\bingarm.
5. Turn the drive chain s\fack adjust- ing bo\fts fu\f\fy in direction (a) and
push the \bhee\f for\bard.
6. Remove the drive chain from the rear sprocket.
4
3
1
2
a
XT660Z 05-07 ING-AUS:MY03 04-06 ING 11-05-2009 10:10 Pagina 7-38

MOTORCYCLE CARE AND STORAGE
8-1
1
2
3
4
5
\f
7
8
9
1\b
EAU26004
Care
While the ope\f desig\f o\b a motorcycle
reveals the attractive\fess o\b the tech-
\fology, it also makes it more vul\fera-
ble. Rust a\fd corrosio\f ca\f develop
eve\f i\b high-quality compo\fe\fts are
used. A rusty exhaust pipe may go u\f-
\foticed o\f a car, however, it detracts
\brom the overall appeara\fce o\b a mo-
torcycle. Freque\ft a\fd proper care
does \fot o\fly comply with the terms o\b
the warra\fty, but it will also keep your
motorcycle looki\fg good, exte\fd its
li\be a\fd optimize its per\borma\fce.
Before cleaning 1. Cover the mu\b\bler outlet with a plastic bag a\bter the e\fgi\fe has
cooled dow\f.
2. Make sure that all caps a\fd cov- ers as well as all electrical cou-
plers a\fd co\f\fectors, i\fcludi\fg
the spark plug cap, are tightly i\f-
stalled. 3. Remove extremely stubbor\f dirt,
like oil bur\ft o\fto the cra\fkcase,
with a degreasi\fg age\ft a\fd a
brush, but \fever apply such prod-
ucts o\fto seals, gaskets, sprockets,
the drive chai\f a\fd wheel axles. Al-
ways ri\fse the dirt a\fd degreaser
o\b\b 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 p\5arts.
●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.
XT660Z 08-10 ING-AUS:MY03 07-10 ING 11-05-2009 10:10 Pagina 2

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8
9
10
MOTORCYCLE C\fRE \fND STOR\f\bE
8-4
Long-term
Before storing your motorcycle for se\f-
eral months:\b. Follow all the instructions in the “Care” section of this ch\lapter.
2. Fill up the fuel tank and add fuel stabilizer (if a\failable) to pre\fent
the fuel tank from rusting and the
fuel from deteriorating.
3. Perform the following steps to protect the cylinder, piston rings,
etc. from corrosion.a. Remo\fe the spark plug cap and spark plug.
b. Pour a teaspoonful of engine oil into the spark plug bore.
c. Install the spark plug cap onto the spark plug, and then place
the spark plug on the cylinder
head so that the electrodes
are grounded. (This will limit
sparking during the next step.)
d. Turn the engine o\fer se\feral times with the starter. (This will
coat the cylinder wall with oil.)
e. Remo\fe the spark plug cap from the spark plug, and then
install the spark plug and the
spark plug cap. W\fRNIN\b! To prevent damage or injury
from sparking, make sure to
ground the spark plug elec-
trodes while turning the en-
gine over.
4. Lubricate all control cables and the pi\foting points of all le\fers
and pedals as well as of the side-
stand/centerstand.\l
5. Check and, if necessary, correct the tire air pressure, and then lift
the motorcycle so that both of its
wheels are off the ground. Alter-
nati\fely, turn the wheels a little
e\fery month in order to pre\fent
the tires from becoming degraded
in one spot.
6. Co\fer the muffler outlets with plastic bags to pre\fent moisture
from entering them. 7. Remo\fe the battery and fully
charge it. Store it in a cool, dry
place and charge it once a month.
Do not store the battery in an ex-
cessi\fely cold or warm place [less
than 0 °C (30 °F) or more than 30
°C (90 °F)]. For more information
on storing the batter y, see
page 7-3\b.
TIP
Make any necessary repairs before
storing the motorcycle.
XT660Z 08-10 ING-AUS:MY03 07-10 ING 11-05-2009 10:10 Pagina 5

SPECIFICATIONS
9-1
1
2
3
4
5
6
7
8
9
1\f
Engin\b oil:Type: SAE10W30 or SAE10W40 or SAE15W40
or SAE\f0W40 or SAE\f0W50
Recomme\bded e\bgi\be oil grade: API service SE, SF, SG type or higher
E\bgi\be oil qua\btity: Without oil filter eleme\bt replaceme\bt:\f.50 L (\f.64 US qt) (\f.19 Imp.qt)
With oil filter eleme\bt replaceme\bt: \f.60 L (\f.73 US qt) (\f.\f6 Imp.qt)
Total amou\bt (dry e\bgi\be): \f.90 L (3.07 US qt) (\f.55 Imp.qt)
Cooling syst\bm:Radiator capacity (i\bcludi\bg all routes): 1.\f L (1.\f6 US qt) (1.05 Imp.qt) (Radiator) +
0.5 L (0.5\f US qt) (0.44 Imp.qt)
(Coola\bt reservoir)
Coola\bt reservoir capacity (up to the
maximum level mark): 0.50 L (0.5\f US qt) (0.44 Imp.qt)
From low to full level: 0.30 L (0.3\f US qt) (0.\f6 Imp.qt)
Air filt\br:Air filter eleme\bt:Paper
Fu\bl:Recomme\bded fuel:Premium u\bleaded gasoli\be o\bly
Fuel ta\bk capacity: \f3.0 L (6.07 US gal) (5.06 Imp.gal)
Fuel reserve amou\bt: 6.7 L (1.76 US gal) (1.46 Imp.gal)
Fu\bl inj\bction:Ma\bufacturer:DENSO
Model: \f97500-0390
Spark plug:Ma\bufacturer/model:NGK/CR7EGap:0.7-0.8 mm (0.0\f8-0.03\f i\b)
Clutch:Clutch type:Wet, multiple-disc
Transmission:Primary reductio\b system:Spur gear
Primary reductio\b ratio: 75/36 (\f.083)
Seco\bdary reductio\b system: Chai\b drive
Seco\bdary reductio\b ratio: 45/15 (3.00)
Tra\bsmissio\b type: Co\bsta\bt mesh 5-speed
Dim\bnsions:Overall le\bgth:\f\f46 mm (88.4\f i\b)
Overall width: 864 mm (34.01 i\b)
Overall height: 1477 mm (58.14 i\b)
Seat height: 896 mm (35.\f7 i\b)
Wheelbase: 1500 mm (59.05 i\b)
Grou\bd cleara\bce: \f60 mm (10.\f3 i\b)
Mi\bimum tur\bi\bg radius: 1958 mm (77.08 i\b)
Basic w\bight:With oil a\bd fuel:\f08.5 kg (459 lb)
Engin\b:E\bgi\be type:Liquid cooled 4-stroke, SOHC
Cyli\bder arra\bgeme\bt: Forward-i\bcli\bed si\bgle cyli\bder
Displaceme\bt: 660.0 cm
3(40.\f7 cu.i\b)
Bore x stroke: 100.0 x 84.0 mm (3.94 x 3.31 i\b)
Compressio\b ratio: 10.00 : 1
Starti\bg system: Electric starter
Lubricatio\b system: Dry sump
-\f0 -10 0 10 \f0 30 40 50 °C
SAE 10W-30
SAE 10W-40
SAE \f0W-40
SAE \f0W-50
SAE 15W-40
XT660Z 08-10 ING-AUS:MY03 07-10 ING 11-05-2009 10:10 Pagina 6

1
2
3
4
5
6
7
8
9
10
SPECIFICATIO\fS
9-2
Operation:Left foot operation
Gear ratio: 1
st:\f0/12 (2\b500)
2
nd:
26/16 (1\b625)
\f
rd: 2\f/20 (1\b150)
4
th: 20/22 (0\b909)
5
th: 20/26 (0\b769)
Chass\bs:
Frame type:
Diamond
Caster angle: 28°
Trail: 11\f\b0 mm (4\b44 in)
Front t\bre:
Type:With tube
Size: 90/90-21M/C 54S,
90/90-21M/C 54T
Manufacturer/model: METZELER/TOURANCE FRONT
MICHELIN/SIRAC
Rear t\bre:
Type:With tube
Size: 1\f0/80-17M/C 65S,
1\f0/80-17M/C 65T Manufacturer/model:
METZELER/TOURANCE
MICHELIN/SIRAC A
Load:
Maximum load:190 kg (419 lb)
(Total weight of rider, passenger, cargo
and accessories)
T\bre a\br pressure
(measured on cold t\bres):
Load:Up to 90 kg (0-198 lb)
Front: 210 kPa (\f0 psi) (2\b1 kgf/cm
2)
Rear: 2\f0 kPa (\f\f psi) (2\b\f kgf/cm
2)
Load: 90-190 kg (198-419 lb)
Front: 2\f0 kPa (\f\f psi) (2\b\f kgf/cm
2)
Rear: 250 kPa (\f6 psi) (2\b5 kgf/cm
2)
Off-road riding:
Front: 200 kPa (29 psi) (2\b0 kgf/cm
2)
Rear: 200 kPa (29 psi) (2\b0 kgf/cm
2)
High-speed riding:
Front: 210 kPa (\f0 psi) (2\b1 kgf/cm
2)
Rear: 2\f0 kPa (\f\f psi) (2\b\f kgf/cm
2)
Front wheel:
Type:
Spoke wheel
Rim size: 21 x 1\b85
Rear wheel:
Type:Spoke wheel
Rim size: 17M/C x MT2\b75
Front brake:
Type:Dual disc brake
Operation: Right hand
Fluid: DOT 4
Rear brake:
Type:Single disc brake
Operation: Right foot
Fluid: DOT 4
Front suspens\bon:
Type:Telescopic fork
Spring/damper type: Coil spring/oil damper
Wheel travel: 210 mm (8\b26 in)
XT660Z 08-10 ING-AUS:MY03 07-10 ING 11-05-2009 10:10 Pagina 7

SPECIFICATIONS
9-3
1
2
3
4
5
6
7
8
9
1\f
Rea\b suspension:
Type: Swingarm (lin\f suspension\b
Spring/damper type: Coil spring/gas-oil damper, spring
preload adjustable
Wheel travel: 200 mm (7.87 in\b
Elect\bical system:
Ignition system:Transistorized coil ignition (digital\b
Charging system: A.C. magneto
Batte\by:
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/bra\fe 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 (bac\flight\b 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
Par\fing lighting fuse: 10 A
Radiator fan fuse: 7.5 A
Fuel injection system fuse: 10 A
Bac\fup fuse (for odometer, cloc\f and immobilizer\b:
10 A
XT660Z 08-10 ING-AUS:MY03 07-10 ING 11-05-2009 10:10 Pagina 8