
INSTRUMENT AND CONTROL FUNCTIONS
4-4
1
2
3
4
\f
6
7
8
\b
10
EAUB1520
Neutral indicator light “ N”
This indica\for li\bh\f comes on when \fhe
\fransmission is in \fh\ae neu\fral posi\fion.
The elec\frical circui\f of \fhe neu\fral indi-
ca\for li\bh\f can be checked by \furnin\b
\fhe key \fo "ON". If \fhe indica\for li\bh\f
does no\f come on for a few seconds,
\fhen \bo off, have a Yamaha dealer
check \fhe elec\frical circui\f.
EAUB1530
High beam indicator light “ 1”
This indica\for li\bh\f comes on when \fhe
hi\bh beam of \fhe headli\bh\f is swi\fched
on. The elec\frical circui\f of \fhe hi\bh
beam indica\for li\bh\f can be checked
by \furnin\b \fhe key \fo "ON". If \fhe indi-
ca\for li\bh\f does no\f come on for a few
seconds, \fhen \bo off, have a Yamaha
dealer check \fhe elec\frical circui\f.
EAU11444
Coolant temperature warning
light “u”
This warnin\b li\bh\f comes on if \fhe en-
\bine overhea\fs. If \fhis occurs, s\fop \fhe
en\bine immedia\fely and allow \fhe en-
\bine \fo cool. The elec\frical circui\f of \fhe
warnin\b li\bh\f can be checked by \furn-
in\b \fhe key \fo "ON". The warnin\b li\bh\f
should come on for a few seconds, and \fhen \bo off. If \fhe warnin\b li\bh\f
does no\f come on ini\fially when \fhe
key is \furned \fo "ON", or if \fhe warnin\b
li\bh\f remains on, have a Yamaha deal-
er check \fhe elec\frical circui\f.
ECA10021
NOTICE
Do not continue to operate the en-
gine if it is overhea\4ting.
TIP
●For radia\for-fan-equipped vehi- cles, \fhe radia\for fan(s) au\foma\fi-
cally swi\fch on or off accordin\b \fo
\fhe coolan\f \fempera\fure in \fhe ra-
dia\for.
●If \fhe en\bine overhea\fs, see pa\be
7-41 for fur\fher ins\fruc\fions.
EAU11534
Engine trouble warning light “ U”
This warnin\b li\bh\f comes on or flashes
if a problem is de\fec\fed in \fhe elec\fri-
cal circui\f moni\forin\b \fhe en\bine. If \fhis
occurs, have a Yamaha dealer check
\fhe self-dia\bnosis sys\fem. (See pa\be
4-8 for an explana\fion of \fhe self-dia\b-
nosis device.) The elec\frical circui\f of
\fhe warnin\b li\bh\f can be checked by \furnin\b \fhe key \fo "ON". The warnin\b
li\bh\f should come on for a few seconds,
and \fhen \bo off. If \fhe warnin\b li\bh\f does
no\f come on ini\fially when \fhe key is
\furned \fo "ON", or if \fhe warnin\b li\bh\f re-
mains on, have a Yamaha dealer check
\fhe elec\frical circui\f.
EAU26876
Immobilizer system indicator
light “ ”
The elec\frical circui\f of \fhe indica\for
li\bh\f can be checked by \furnin\b \fhe
key \fo "ON". The indica\for li\bh\f should
come on for a few seconds, and \fhen
\bo off. If \fhe indica\for li\bh\f does no\f
come on ini\fially when \fhe key is
\furned \fo "ON", or if \fhe indica\for li\bh\f
remains on, have a Yamaha dealer
check \fhe elec\frical circui\f.
When \fhe key is \furned \fo "OFF" and
30 seconds have passed, \fhe indica\for
li\bh\f will s\far\f flashin\b indica\fin\b \fhe
immobilizer sys\fem is enabled. Af\fer
24 hours have passed, \fhe indica\for
li\bh\f will s\fop flashin\b, however \fhe im-
mobilizer sys\fem is s\fill en\aabled.
This model is also equipped wi\fh a
self-dia\bnosis device for \fhe immobi-
lizer sys\fem. (See pa\be 4-8 for an ex-
plana\fion of \fhe self-dia\bnosis device.)
XT660Z 04-04 ING-AUS:MY03 01-03 ING 11-05-2009 9:54 Pagina 4-4

PERIODIC MAINTENANCE AND ADJUSTMENT
7-34
1
2
3
4
\f
6
7
8
\b
10
ECA10650
NOTICE
Take care not to damage the fol-
lowing parts:
●Headlight bulb Do not touch the glass part
of the headlight bulb to keep
it free from oil, otherwise the
transparency of the glass,
the luminosity of the bulb,
and the bulb life will be ad-
versely affected. Thoroughly
clean off any dirt and finger-
prints on the headlight bulb
using a cloth moistened with
alcohol or thinner.
●Headlight lens
Do not affix any type of tinted
film or stickers to the head-
light lens.
Do not use a headlight bulb
of a wattage higher than
specified. 4. Connect t\fe couple\b, and t\fen in-
stall t\fe \feadlig\ft bulb cove\b.
5. Have a Yama\fa deale\b adjust t\fe \feadlig\ft beam if nec\ essa\by.
EAU24204
Replacing a turn signal
light bulb
1. Sc\bew
2. Tu\bn signal lig\ft lens
3. Tu\bn signal lig\ft bulb
1. Remove t\fe tu\bn signal lig\ft lensby \bemoving t\fe sc\bew.
2. Remove t\fe bu\bnt-out bulb by pus\fing it in and tu\bning it coun-
te\bclockwise.
3. Inse\bt a new bulb into t\fe socket, pus\f it in, and t\fen tu\bn it clock-
wise until it stops.
XT660Z 05-07 ING-AUS:MY03 04-06 ING 11-05-2009 10:10 Pagina 7-34

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

Dimmer switch ..................\o..............4-9
Engine sto\f switch..................\o........4-9
Hazar\b switch ..................\o.............4-10
Horn switch ..................\o..................\o.4-9
Pass switch ..................\o..................\o.4-9
Start switch ..................\o..................\o.4-9
Turn signal switch ..................\o.........4-9
Hea\blight bulb, re\flacing .................7\o-33
High beam in\bicator light ..................\o.4-4
Horn switch ..................\o..................\o....4-9
I I\bentification numbers ..................\o....10-1
I\bling s\fee\b, checking ..................\o...7-15
Ignition circuit cut-off system............4-17 Checking o\feration \froce\bure .....4-18
Immobilizer system ..................\o..........4-1
Immobilizer system in\bicator light ......4-4
In\bicator an\b warning lights ...............4-3\o Coolant tem\ferature warning light ..................\o..................\o.........4-4
Engine trouble warning light ...........4-4
High beam in\bicator light ................4-\o4
Immobilizer system in\bicator light ..................\o..................\o.........4-4
Neutral in\bicator light ..................\o....4-4
Turn signal in\bicator light................4-\o3
Instruments ..................\o..................\o....4-3
Instrument an\b control functions ........4-1
K Keys ..................\o..................\o...............4-1\o L
Labels (location of im\fortant labels) ..1-1
License \flate light bulb, re\flacing....7-35
Location of im\fortant labels ...............1-1\o
Loa\bing ..................\o..................\o..........2-3
Lubricating the brake an\b clutch levers ..................\o................7-\o26
Lubricating the brake \fe\bal..............7\o-27
Lubricating the cables ..................\o....7-25
Lubricating the \brive chain ...............7-2\o5
Lubricating the si\bestan\b .................7\o-27
Lubricating the throttle gri\f an\b cable ..................\o..................\o..7-26
Lubricating the swingarm \fivots.......7-28
M Main switch/steering lock ..................\o.4-2
Mo\bel label ..................\o..................\o...10-1
Motorcycle noise regulation (for Australia) ..................\o..............10-2\o
Multi-function \bis\flay..................\o........4-5 Clock mo\be ..................\o..................\o.4-7
Self-\biagnosis \bevices ..................\o..4-7
Tachometer ..................\o..................\o.4-6
Tri\fmeter an\b tachometer mo\bes ..4-6
N Neutral in\bicator light ..................\o.......4-4
O Oil filter element ..................\o.............7-10
O\feration an\b im\fortant ri\bing \foints ..................\o..................\o..........6-1 Owner’s tool kit ..................\o................7-\o1
P Panels, removing an\b installing .........7-6
Parking ..................\o..................\o...........6-4
Pass switch ..................\o..................\o....4-9
Perio\bic maintenance an\b a\bjustment ..................\o.............7-1
Perio\bic maintenance chart for the emission control system ...........7-2
Pre-o\feration check list ..................\o...5-2
Pre-o\feration checks ..................\o.......5-1
R Rear sus\fension, lubricating............7-27
Rear wheel ..................\o..................\o...7-38 Installing..................\o..................\o....7-39
Removing..................\o..................\o..7-38
Recor\b the i\bentification numbers ...10-1
S Safety information ..................\o............2-1
Seat ..................\o..................\o..............4-14\o
Self-\biagnosis \bevices ..................\o.....4-7
Shift \fe\bal ..................\o..................\o....4-10
Shifting ..................\o..................\o...........6-2
Shock absorber assembly (a\bjusting) ..................\o..................\o.4-16
Si\bestan\b ..................\o..................\o.....4-17
Si\bestan\b, checking an\b lubricating ..................\o..................\o.7-27
Si\bestan\b switch, checking ..............4-18\o
S\fark \flug, checking..................\o........7-8
INDEX
Australia 5/8/10 \á 16:21 Pá\fina 94