stop start YAMAHA XJ900S 2002 Owners Manual
Page 16 of 102
3-1
3
EAU00027
3-INSTRUMENT AND CONTROL FUNCTIONS
EAU00029
Main switch/steering lock The main switch/steering lock controls
the ignition and lighting systems, and is
used to lock the steering. The various
positions are described below.
EAU00036
ON
All electrical systems are supplied with
power, and the engine can be started.
The key cannot be removed.
EAU00038
OFF
All electrical systems are off. The key
can be removed.
EAU00040
LOCK
The steering is locked, and all electrical
systems are off. The key can be re-
moved.
To lock the steering1. Turn the handlebars all the way to
the left.
2. Push the key in from the “OFF” po-
sition, and then turn it to “LOCK”
while still pushing it.
3. Remove the key.
To unlock the steeringPush the key in, and then turn it to
“OFF” while still pushing it.
EW000016
WARNING
@ Never turn the key to “OFF” or
“LOCK” while the motorcycle is
moving, otherwise the electrical
systems will be switched off, which
may result in loss of control or an
accident. Make sure that the motor-
cycle is stopped before turning the
key to “OFF” or “LOCK”. @1. Push.
2. Turn.
E_4km.book  Page 1  Tuesday, August 28, 2001  9:51 AM 
Page 17 of 102
INSTRUMENT AND CONTROL FUNCTIONS
3-2
3
EAU04356
 (Parking)
The steering is locked, the taillight and
auxiliary light are on, and the hazard
light can be turned on, but all other
electrical systems are off. The key can
be removed.
The steering must be locked before the
key can be turned to “”.
ECA00043
CAUTION:_ Do not use the parking position for
an extended length of time, other-
wise the battery may discharge. _
EAU03034
Indicator and warning lights  
EAU04121
Turn signal indicator lights “”
and “” 
The corresponding indicator light flash-
es when the turn signal switch is
pushed to the left or right.
EAU03680
Fuel level warning light “” 
This warning light comes on when the
fuel level drops below approximately
5 L. When this occurs, refuel as soon
as possible.
The electrical circuit of the warning light
can be checked according to the fol-
lowing procedure.
1. Set the engine stop switch to “”
and turn the key to “ON”. 
2. Shift the transmission into the neu-
tral position or pull the clutch lever. 
3. Push the start switch. If the warn-
ing light does not come on, have a
Yamaha dealer check the electri-
cal circuit.
1. Left turn signal indicator light “”
2. Fuel level warning light “”
3. Neutral indicator light “”
4. High beam indicator light “”
5. Oil level warning light “”
6. Right turn signal indicator light “”
E_4km.book  Page 2  Tuesday, August 28, 2001  9:51 AM 
Page 18 of 102
INSTRUMENT AND CONTROL FUNCTIONS
3-3
3
EAU00061
Neutral indicator light “” 
This indicator light comes on when the
transmission is in the neutral position.
EAU00063
High beam indicator light “” 
This indicator light comes on when the
high beam of the headlight is switched
on.
EAU03201
Oil level warning light “” 
This warning light comes on when the
engine oil level is low.
The electrical circuit of the warning light
can be checked according to the fol-
lowing procedure.
1. Set the engine stop switch to “”
and turn the key to “ON”.
2. Shift the transmission into the neu-
tral position or pull the clutch lever.
3. Push the start switch. If the warn-
ing light does not come on while
pushing the start switch, have a
Yamaha dealer check the electri-
cal circuit.NOTE:@ Even if the oil level is sufficient, the
warning light may flicker when riding on
a slope or during sudden acceleration
or deceleration, but this is not a mal-
function. @
EAU00096
Speedometer unit The speedometer unit is equipped with
a speedometer, an odometer and a
tripmeter. The speedometer shows
riding speed. The odometer shows the
total distance traveled. The tripmeter
shows the distance traveled since it
was last set to zero with the reset but-
ton. The tripmeter can be used togeth-
er with the fuel gauge to estimate the
distance that can be traveled with a full
tank of fuel. This information will enable
you to plan future fuel stops. 
1. Left turn signal indicator light “”
2. Fuel level warning light “”
3. Neutral indicator light “”
4. High beam indicator light “”
5. Oil level warning light “”
6. Right turn signal indicator light “”
1. Tripmeter
2. Odometer
3. Tripmeter reset button
E_4km.book  Page 3  Tuesday, August 28, 2001  9:51 AM 
Page 22 of 102
INSTRUMENT AND CONTROL FUNCTIONS
3-7
3
EAU03890
Engine stop switch “/” 
Set this switch to “” before starting
the engine. Set this switch to “” to
stop the engine in case of an emergen-
cy, such as when the motorcycle over-
turns or when the throttle cable is
stuck.
EAU03898
Light switch “//”  
Set this switch to “” to turn on the
auxiliary light, meter lighting and tail-
light. Set the switch to “” to turn on
the headlight also. Set the switch to
“” to turn off all the lights.
EAU00143
Start switch “” 
Push this switch to crank the engine
with the starter.
EC000005
CAUTION:@ See page 5-1 for starting instruc-
tions prior to starting the engine. @
EAU00152
Clutch lever The clutch lever is located at the left
handlebar grip. To disengage the
clutch, pull the lever toward the handle-
bar grip. To engage the clutch, release
the lever. The lever should be pulled
rapidly and released slowly for smooth
clutch operation.
The clutch lever is equipped with a
clutch switch, which is part of the igni-
tion circuit cut-off system. (See
page 3-16 for an explanation of the ig-
nition circuit cut-off system.)
1. Engine stop switch “/”
2. Light switch “//”
3. Start switch “”
1. Clutch lever
E_4km.book  Page 7  Tuesday, August 28, 2001  9:51 AM 
Page 32 of 102
INSTRUMENT AND CONTROL FUNCTIONS
3-17
3
CD-01E
With the engine turned off:
1. Move the sidestand down.
2. Make sure that the engine stop switch is set to “”.
3. Turn the key to “ON”. 
4. Shift the transmission into the neutral position.
5. Push the start switch.
Does the engine start?
The neutral switch may be defective.
The motorcycle should not be ridden until 
checked by a Yamaha dealer.
With the engine still running:
6. Move the sidestand up.
7. Keep the clutch lever pulled.
8. Shift the transmission into gear.
9. Move the sidestand down.
Does the engine stall?After the engine has stalled:
10. Move the sidestand up.
11. Keep the clutch lever pulled.
12. Push the start switch.
Does the engine start?
The sidestand switch may be defective.
The motorcycle should not be ridden until 
checked by a Yamaha dealer.The clutch switch may be defective.
The motorcycle should not be ridden until 
checked by a Yamaha dealer.
NO
NOTE:This check is most reliable if performed with
a warmed-up engine.
YESYES NO
The system is OK. 
The motorcycle can be ridden.
YES NO
E_4km.book  Page 17  Tuesday, August 28, 2001  9:51 AM 
Page 38 of 102
5-1
5
EAU00372
5-OPERATION AND IMPORTANT RIDING POINTS
EAU00373
WARNING
@ 
Become thoroughly familiar
with all operating controls and
their functions before riding.
Consult a Yamaha dealer re-
garding any control or function
that you do not thoroughly
understand.
Never start the engine or oper-
ate it in a closed area for any
length of time. Exhaust fumes
are poisonous, and inhaling
them can cause loss of con-
sciousness and death within a
short time. Always make sure
that there is adequate
ventilation.
Before starting out, make sure
that the sidestand is up. If the
sidestand is not raised com-
pletely, it could contact the
ground and distract the opera-
tor, resulting in a possible loss
of control. 
@
EAU03818*
Starting the engine In order for the ignition circuit cut-off
system to enable starting, one of the
following 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.
EW000054
WARNING
_ 
Before starting the engine,
check the function of the igni-
tion circuit cut-off system ac-
cording to the procedure
described on page 3-17. 
Never ride with the sidestand
down. 
_1. Turn the key to “ON” and make
sure that the engine stop switch is
set to “”.
EC000035
CAUTION:_ If the fuel level warning light comes
on, check the fuel level, and, if nec-
essary, refuel as soon as possible. _2. Shift the transmission into the neu-
tral position.NOTE:_ When the transmission is in the neutral
position, the neutral indicator light
should be on, otherwise have a
Yamaha dealer check the electrical cir-
cuit. _3. Turn the starter (choke) on and
completely close the throttle. (See
page 3-11 for starter (choke) oper-
ation.)
4. Start the engine by pushing the
start switch.
E_4km.book  Page 1  Tuesday, August 28, 2001  9:51 AM 
Page 39 of 102
OPERATION AND IMPORTANT RIDING POINTS
5-2
5
NOTE:_ If the engine fails to start, release the
start switch, wait a few seconds, 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. _
EC000038
CAUTION:_ 
The oil level warning light and
fuel level warning light should
come on when the start switch
is pushed, and they should go
off when the start switch is re-
leased.
If the oil level warning light flick-
ers or remains on after starting,
immediately stop the engine,
and then check the engine oil
level and the vehicle for oil leak-
age. If necessary, add engine
oil, and then check the warning
light again. If the warning light
does not come on when push-
ing the start switch, or if it doesnot go off after starting with suf-
ficient engine oil, have a
Yamaha dealer check the elec-
trical circuit.
If the fuel level warning light re-
mains on after starting, stop the
engine, and then check the fuel
level. If necessary, refuel as
soon as possible, and then
check the warning light again. If
the warning light does not come
on when pushing the start
switch, or if it does not go off af-
ter starting with sufficient fuel,
have a Yamaha dealer check the
electrical circuit. 
_5. After starting the engine, move the
starter (choke) lever back halfway.
ECA00045
CAUTION:_ For maximum engine life, never ac-
celerate hard when the engine is
cold! _6. When the engine is warm, turn the
starter (choke) off.
NOTE:_ The engine is warm when it responds
normally to the throttle with the starter
(choke) turned off. _
E_4km.book  Page 2  Tuesday, August 28, 2001  9:51 AM 
Page 58 of 102
PERIODIC MAINTENANCE AND MINOR REPAIR
6-15
6
EAU00630
Adjusting the carburetors The carburetors are important parts of
the engine and require very sophisti-
cated adjustment. Therefore, most car-
buretor adjustments should be left to a
Yamaha dealer, who has the neces-
sary professional knowledge and expe-
rience. The adjustment described in
the following section, however, may be
serviced by the owner as part of routine
maintenance.
EC000095
CAUTION:@ The carburetors have been set and
extensively tested at the Yamaha
factory. Changing these settings
without sufficient technical knowl-
edge may result in poor perfor-
mance of or damage to the engine. @
EAU00632
Adjusting the engine idling 
speed The engine idling speed must be
checked and, if necessary, adjusted as
follows at the intervals specified in the
periodic maintenance and lubrication
chart.
1. Start the engine and warm it up
for several minutes at 1,000–
2,000 r/min while occasionally rev-
ving it to 4,000–5,000 r/min.NOTE:@ The engine is warm when it quickly re-
sponds to the throttle. @
2. Check the engine idling speed
and, if necessary, adjust it to spec-
ification by turning the throttle stop
screw. To increase the engine
idling speed, turn the screw in di-
rection 
a. To decrease the engine
idling speed, turn the screw in
direction 
b.NOTE:@ If the specified idling speed cannot be
obtained as described above, have a
Yamaha dealer make the adjustment. @ 1. Throttle stop screw
Engine idling speed:
950–1,050 r/min
E_4km.book  Page 15  Tuesday, August 28, 2001  9:51 AM 
Page 98 of 102
10-INDEXAAir filter element, cleaning ...................... 6-13
Anti-theft alarm ........................................3-5BBattery ................................................... 6-29
Brake and clutch levers, checking and 
lubricating ............................................ 6-25
Brake and shift pedals, checking and 
lubricating ............................................ 6-25
Brake fluid, changing ............................. 6-24
Brake fluid level, checking...................... 6-23
Brake lever...............................................3-8
Brake light switch (rear), adjusting ......... 6-21
Brake pads, checking............................. 6-22
Brake pedal..............................................3-8
Brake pedal position, adjusting .............. 6-21CCables, checking and lubricating............ 6-24
Carburetors, adjusting............................ 6-15
Care.........................................................7-1
Centerstand and sidestand, 
checking and ubricating ....................... 6-25
Clock .......................................................3-5
Clutch lever ..............................................3-7
Clutch lever free play, adjusting ............. 6-20
Conversion table ......................................8-5
Cowlings, removing and installing ............6-5DDimmer switch .........................................3-6EEngine break-in........................................5-4
Engine oil and oil filter cartridge ............... 6-8
Engine stop switch................................... 3-7FFinal gear oil .......................................... 6-11
Front fork, adjusting ............................... 3-13
Front fork, checking ............................... 6-27
Fuel ......................................................... 3-9
Fuel consumption, tips for reducing ......... 5-4
Fuel gauge .............................................. 3-5
Fuel level warning light ............................ 3-2
Fuel tank breather hose 
(Germany only) ................................... 3-11
Fuel tank cap ........................................... 3-9
Fuses, replacing .................................... 6-30HHandlebar switches ................................. 3-6
Hazard switch .......................................... 3-6
Headlight bulb, replacing ....................... 6-31
Helmet holder ........................................ 3-12
High beam indicator light ......................... 3-3
Horn switch ............................................. 3-6IIdentification numbers ............................. 9-1
Idling speed, adjusting ........................... 6-15
Ignition circuit cut-off system.................. 3-16
Indicator and warning lights ..................... 3-2KKey identification number ........................ 9-1LLight switch.............................................. 3-7
Luggage strap holders ...........................3-15MMain switch/steering lock .........................3-1
Model label ..............................................9-2NNeutral indicator light ...............................3-3OOil level warning light ...............................3-3PParking.....................................................5-5
Part locations ...........................................2-1
Pass switch ..............................................3-6
Periodic maintenance and lubrication 
chart ......................................................6-2
Pre-operation check list ............................4-1RRear suspension, lubricating ..................6-26SSafety information ....................................1-1
Seat .......................................................3-11
Self-diagnosis device ...............................3-4
Shifting .....................................................5-3
Shift pedal ................................................3-8
Shift points (for Switzerland only) .............5-4
Shock absorber assembly, adjusting ......3-14
Sidestand ...............................................3-15
Spark plugs, checking ..............................6-7
Specifications ...........................................8-1
Speedometer unit.....................................3-3
Starter (choke) lever...............................3-11
E_4km.book  Page 1  Tuesday, August 28, 2001  9:51 AM