check engine YAMAHA XJ900S 2002 Owners Manual

DESCRIPTION
2-2
2
Right view9. Tail/brake light (page 6-32)
10. Grab bar
11. Fuse box (page 6-30)
12. Main fuse (page 6-30)
13. Seat (page 3-11)
14. Owner’s tool kit (page 6-1)15. Air filter element (page 6-13)
16. Front fork spring preload
adjusting bolt (page 3-13)
17. Engine oil level check window (page 6-8)
18. Brake pedal (page 3-8)
E_4km.book Page 2 Tuesday, August 28, 2001 9:51 AM

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

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

INSTRUMENT AND CONTROL FUNCTIONS
3-4
3
EAU00101
Tachometer The electric tachometer allows the rider
to monitor the engine speed and keep it
within the ideal power range.
EC000003
CAUTION:@ Do not operate the engine in the ta-
chometer red zone.
Red zone: 9,500 r/min and above @
EAU01559
Self-diagnosis device This model is equipped with a self-di-
agnosis device for the following electri-
cal circuits:

throttle position sensor


ignition system
If any of those circuits are defective,
the tachometer will repeatedly display
the following error code:
CB-17EUse the table below to identify the
faulty electrical circuit.CB-18E
If the tachometer displays such an er-
ror code, note the circuit-specific num-
ber of r/min, and then have a Yamaha
dealer check the motorcycle.
EC000004
CAUTION:@ When the tachometer displays an
error code, the motorcycle should
be checked as soon as possible in
order to avoid engine damage. @
1. Tachometer
2. Tachometer red zone
Specific r/min
Faulty electrical circuit
10,000 r/min
Throttle position sensor
9,000 r/min
Ignition system
0 r/min for
3 seconds
Circuit-specific
number of r/min
for 3 seconds
(See the table
below.)
Current
engine
speed for
3 seconds
E_4km.book Page 4 Tuesday, August 28, 2001 9:51 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-11
3
EAU00196
Fuel tank breather hose
(for Germany only) Before operating the motorcycle:

Check the fuel tank breather hose
connection.


Check the fuel tank breather hose
for cracks or damage, and replace
it if damaged.


Make sure that the end of the fuel
tank breather hose is not blocked
and clean it if necessary.
EAU03839
Starter (choke) lever “” Starting a cold engine requires a richer
air-fuel mixture, which is supplied by
the starter (choke).
Move the lever in direction
a to turn on
the starter (choke).
Move the lever in direction
b to turn off
the starter (choke).
EAU02925
Seat To remove the seat
Insert the key into the seat lock, turn it
counterclockwise, and then pull the
seat off.
1. Fuel tank breather hose
1. Starter (choke) lever “”
1. Seat lock
2. Unlock.
E_4km.book Page 11 Tuesday, August 28, 2001 9:51 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-16
3
EW000044
WARNING
@ The motorcycle must not be ridden
with the sidestand down, or if the
sidestand cannot be properly
moved up (or does not stay up), oth-
erwise the sidestand could contact
the ground and distract the opera-
tor, resulting in a possible loss of
control. Yamaha’s ignition circuit
cut-off system has been designed to
assist the operator in fulfilling the
responsibility of raising the side-
stand before starting off. Therefore,
check this system regularly as de-
scribed below and have a Yamaha
dealer repair it if it does not function
properly. @
EAU03741
Ignition circuit cut-off system The ignition circuit cut-off system (com-
prising the sidestand switch, clutch
switch and neutral switch) has the fol-
lowing functions.

It prevents starting when the trans-
mission is in gear and the side-
stand is up, but the clutch lever is
not pulled.


It prevents starting when the trans-
mission is in gear and the clutch
lever is pulled, but the sidestand is
still down.


It cuts the running engine when
the transmission is in gear and the
sidestand is moved down.
Periodically check the operation of the
ignition circuit cut-off system according
to the following procedure.
EW000046
WARNING
@

The vehicle must be placed on
the centerstand during this
inspection.


If a malfunction is noted, have a
Yamaha dealer check the sys-
tem before riding.
@
E_4km.book Page 16 Tuesday, August 28, 2001 9:51 AM

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

4-1
4
EAU01114
4-PRE-OPERATION CHECKSThe condition of a vehicle is the owner’s responsibility. Vital components can start to deteriorate quickly and unexpectedly,
even if the vehicle remains unused (for example, as a result of exposure to the elements). Any damage, fluid leakage or loss
of tire air pressure could have serious consequences. Therefore, it is very important, in addition to a thorough visual inspec-
tion, to check the following points before each ride.
EAU03439
Pre-operation check list
ITEM CHECKS PAGE
FuelCheck fuel level in fuel tank.
Refuel if necessary.
Check fuel line for leakage.3-9–3-10
Engine oilCheck oil level in engine.
If necessary, add recommended oil to specified level.
Check vehicle for oil leakage.6-8
Final gear oilCheck vehicle for oil leakage. 6-11–6-12
Front brakeCheck operation.
If soft or spongy, have Yamaha dealer bleed hydraulic system.
Check fluid level in reservoir.
If necessary, add recommended brake fluid to specified level.
Check hydraulic system for leakage.6-22–6-23
Rear brakeCheck operation.
If soft or spongy, have Yamaha dealer bleed hydraulic system.
Check fluid level in reservoir.
If necessary, add recommended brake fluid to specified level.
Check hydraulic system for leakage.6-21–6-23
ClutchCheck operation.
Lubricate cable if necessary.
Check lever free play.
Adjust if necessary.6-20
Throttle gripMake sure that operation is smooth.
Check free play.
If necessary, have Yamaha dealer make adjustment or lubricate.6-16
Control cablesMake sure that operation is smooth.
Lubricate if necessary.6-24
E_4km.book Page 1 Tuesday, August 28, 2001 9:51 AM

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

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