Page 39 of 100

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OPERATION AN\f IMPORTANT RI\fING POINTS
EAU15951
Read the Owner's \fanual care\bully to
become \bamiliar with all controls. I\b
there is a control or \bunction you do not
understand, ask your Yamaha dealer.
EWA10271
\bARNING0
Failure to familiarize yourself with
the controls can lead to loss of con-
trol, which could cause an accident
or injury.
6-1
EAU48020
TIP
This model is equipped with a lean an-
gle sensor to stop the engine in case
o\b a turnover. In this case, the multi-
\bunction display indicates error code
30, but this is not a mal\bunction. Turn
the key to "OFF" and then to "ON" to
clear the error code. Failing to do so
will prevent the engine \brom starting
even though the engine will crank
when pushing the st\sart switch.
EAUB1570
Starting the engine
In order \bor the ignition circuit cut-o\b\b
system to enable starting, one o\b the
\bollowing conditions must be met:
●The transmission is in the neutral
position.
●The transmission is in gear with
the clutch lever pulled and the
sidestand up.
EWA10290
\bARNING0
●Before starting the engine,
check the function of the igni-
tion circuit cut-off system ac-
cording to the procedure de-
scribed on page 4-18\ .
●Never ride with the sidestand
down.
1. Turn the key to “ON” and make sure that the engine stop switch is
set to “
I”.
XT660Z 05-07 ING-AUS:MY03 04-06 ING 11-05-2009 10:09 Pagina 5
Page 40 of 100

OPERATION AND IMPORTANT RIDING POINTS
3. Start the engine by pushing thestart switch.
TIP
\ff the engine fails to start\b release the
start switch\b wait a few seconds\b 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 max\fmum en\b\fne l\ffe, never ac-
celerate hard when the en\b\fne \fs
cold!
TIP
The engine is warm when it quickly re-
sponds to the thrott\cle.
EAU16671
Sh\fft\fn\b
1. Shift pedal
N. Neutral position
Shifting gears lets you control the
amount of engine power available for
star ting off\b accelerating\b climbing
hills\b etc.
The gear positions are shown in the il-
lustration.
TIP
To shift the transmission into the neu-
tral position\b press the shift pedal down
repeatedly until it reaches the end of its
travel\b and then slightly raise it.
6-2
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ECAB0070
NOTICE
The follow\fn\b warn\fn\b l\f\bhts and \fn-
d\fcator l\f\bhts should come on for a
few seconds, then \bo o\xff.
●Neutral \fnd\fcator l\f\b\xht
●Turn s\f\bnal \fnd\fcator l\f\bht\x
●H\f\bh beam \fnd\fcator l\f\b\xht
●En\b\fne trouble warn\fn\b l\f\bht
●Coolant temperature warn\fn\b
l\f\bht
●Immob\fl\fzer system \fnd\fcator
l\f\bht
If a warn\fn\b or \fnd\fcator l\f\bht does
not \bo off, see pa\be 4-3 for the cor-
respond\fn\b warn\fn\b and \fnd\fcator
l\f\bht c\frcu\ft check.
2. Shift the transmission into the neutral position.
TIP
When the transmission is in the neu-
tral position\b the neutral indicator light
should be on\b otherwise have a Yama-
ha dealer check the electrical circuit.
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PERIODIC M\fINTEN\fNCE \fND \fDJ\bSTMENT
7-23
EAU22731
Changing the brake fluid
Have a Yamaha dealer \fhange the
\brake fluid at the intervals spe\fified in
the TIP after the periodi\f maintenan\fe
and lu\bri\fation \fhart. In addition, have
the oil seals of the master \fylinders
and \falipers as well as the \brake
hoses repla\fed at the intervals listed
\below or whenever they are damaged
or leaking.
●Oil seals: Repla\fe ever y two
years.
●Brake hoses: Repla\fe every four
years.
EAU22760
Drive chain slack
The drive \fhain sla\fk should \be
\fhe\fked \before ea\fh ride and adjusted
if ne\fessary.
EAU22783
To check the drive chain slack
1. Drive \fhain sla\fk
1. Pla\fe the motor\fy\fle on the side-stand.
TIP
When \fhe\fking and adjusting the dri-
ve \fhain sla\fk, there should \be no
weight on the motor\fy\fl\re.
2. Shift the transmission into theneutral position.
3. Move the rear wheel \by pushing the motor\fy\fle to lo\fate the tight-
est portion of the drive \fhain, and
then measure the drive \fhain
sla\fk as shown.
4. If the drive \fhain sla\fk is in\for- re\ft, adjust it as follows.
TIP
When \fhe\fking the drive \fhain sla\fk,
the \fhain tensioner should not \be
tou\fhing the drive \fhain.
Drive chain slack:50.0-60.0 mm (1.96\r-2.36 in)
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Page 88 of 100

SPECIFICATIONS
9-1
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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