ignition YAMAHA XJ900S 2002 Owners Manual

3
INSTRUMENT AND CONTROL FUNCTIONS
Main switch/steering lock ..................................... 3-1
Indicator and warning lights ................................ 3-2
Speedometer unit ................................................ 3-3
Tachometer .......................................................... 3-4
Self-diagnosis device ........................................... 3-4
Fuel gauge ........................................................... 3-5
Clock .................................................................... 3-5
Anti-theft alarm (optional) .................................... 3-5
Handlebar switches ............................................. 3-6
Clutch lever .......................................................... 3-7
Shift pedal ............................................................ 3-8
Brake lever .......................................................... 3-8
Brake pedal .......................................................... 3-8Fuel tank cap ...................................................... 3-9
Fuel ..................................................................... 3-9
Fuel tank breather hose (for Germany only) ..... 3-11
Starter (choke) lever .......................................... 3-11
Seat ................................................................... 3-11
Helmet holder .................................................... 3-12
Storage compartment ....................................... 3-13
Adjusting the front fork ...................................... 3-13
Adjusting the shock absorber assembly ............ 3-14
Luggage strap holders ...................................... 3-15
Sidestand .......................................................... 3-15
Ignition circuit cut-off system ............................. 3-16
E_4km.book Page 1 Tuesday, August 28, 2001 9:51 AM

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

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
3-15
3
EAU00315
WARNING
@ This shock absorber contains high-
ly pressurized nitrogen gas. For
proper handling, read and under-
stand the following information be-
fore handling the shock absorber.
The manufacturer cannot be held re-
sponsible for property damage or
personal injury that may result from
improper handling.

Do not tamper with or attempt to
open the gas cylinder.


Do not subject the shock ab-
sorber to an open flame or other
high heat sources, otherwise it
may explode due to excessive
gas pressure.


Do not deform or damage the
gas cylinder in any way, as this
will result in poor damping per-
formance.


Always have a Yamaha dealer
service the shock absorber.
@
EAU04389
Luggage strap holders There are two luggage strap holders
below the rear of the seat.
EAU00330
Sidestand The sidestand is located on the left side
of the frame. Raise the sidestand or
lower it with your foot while holding the
motorcycle upright.NOTE:@ The built-in sidestand switch is part of
the ignition circuit cut-off system, which
cuts the ignition in certain situations.
(See further down for an explanation of
the ignition circuit cut-off system.) @
1. Luggage strap holder (× 2)
E_4km.book Page 15 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

PRE-OPERATION CHECKS
4-2
4
NOTE:@ Pre-operation checks should be made each time the motorcycle is used. Such an inspection can be accomplished in a very
short time; and the added safety it assures is more than worth the time involved. @
EWA00033
WARNING
@ If any item in the Pre-operation check list is not working properly, have it inspected and repaired before operating
the motorcycle. @Wheels and tiresCheck for damage.
Check tire condition and tread depth.
Check air pressure.
Correct if necessary.6-17–6-20
Brake and shift pedalsMake sure that operation is smooth.
Lubricate pedal pivoting points if necessary.6-25
Brake and clutch leversMake sure that operation is smooth.
Lubricate lever pivoting points if necessary.6-25
Centerstand, sidestandMake sure that operation is smooth.
Lubricate pivots if necessary.6-25–6-26
Chassis fastenersMake sure that all nuts, bolts and screws are properly tightened.
Tighten if necessary.—
Instruments, lights, signals
and switchesCheck operation.
Correct if necessary.—
Sidestand switchCheck operation of ignition circuit cut-off system.
If system is defective, have Yamaha dealer check vehicle.3-15 ITEM CHECKS PAGE
E_4km.book Page 2 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

PERIODIC MAINTENANCE AND MINOR REPAIR
6-30
6
EC000102
CAUTION:@

Always keep the battery
charged. Storing a discharged
battery can cause permanent
battery damage.


To charge a sealed-type (MF)
battery, a special (constant-
voltage) battery charger is re-
quired. Using a conventional
battery charger will damage the
battery. If you do not have ac-
cess to a sealed-type (MF) bat-
tery charger, have a Yamaha
dealer charge your battery.
@
EAU04359*
Replacing the fuses The main fuse and the fuse box, which
contains the fuses for the individual cir-
cuits, are located behind cowling B.
(See page 6-6 for cowling removal and
installation procedures.)
If a fuse is blown, replace it as follows.
1. Turn the key to “OFF” and turn off
the electrical circuit in question.
2. Remove the blown fuse, and then
install a new fuse of the specified
amperage.1. Fuse box
2. Main fuse
1. Headlight fuse
2. Ignition fuse
3. Clock fuse
4. Hazard fuse
5. Main fuse
6. Spare fuse (× 3)
7. Signaling system fuseSpecified fuses:
Main fuse: 30 A
Headlight fuse: 15 A
Signaling system fuse: 20 A
Ignition fuse: 10 A
Clock fuse: 10 A
Hazard fuse: 10 A
E_4km.book Page 30 Tuesday, August 28, 2001 9:51 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-37
68. Install the brake torque rod cotter
pin.
EW000124
WARNING
_ Always use a new cotter pin. _
EAU01008
Troubleshooting Although Yamaha motorcycles receive
a thorough inspection before shipment
from the factory, trouble may occur dur-
ing operation. Any problem in the fuel,
compression, or ignition systems, for
example, can cause poor starting and
loss of power.
The following troubleshooting chart
represents a quick and easy procedure
for checking these vital systems your-
self. However, should your motorcycle
require any repair, take it to a Yamaha
dealer, whose skilled technicians have
the necessary tools, experience, and
know-how to service the motorcycle
properly.
Use only genuine Yamaha replace-
ment parts. Imitation parts may look
like Yamaha parts, but they are often
inferior, have a shorter service life and
can lead to expensive repair bills.
E_4km.book Page 37 Tuesday, August 28, 2001 9:51 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-38
6
EAU01297
Troubleshooting chart
EW000125
WARNING
@ Keep away open flames and do not smoke while checking or working on the fuel system. @
Check the fuel level in
the fuel tank.1. Fuel
There is enough fuel.
There is no fuel.
Check the compression.
Supply fuel.
The engine does not start.
Check the compression.
Operate the electric starter.2. Compression
There is compression.
There is no compression.
Check the ignition.
Have a Yamaha dealer
check the vehicle.
Remove the spark plugs
and check the electrodes.3. Ignition
Wipe off with a dry cloth and correct the
spark plug gaps, or replace the spark plugs.
Have a Yamaha dealer check the vehicle.
The engine does not start.
Have a Yamaha dealer
check the vehicle.
The engine does not start.
Check the battery.
Operate the electric starter.4. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.Check the battery lead connections,
and charge the battery if necessary.
DryWet
Open the throttle halfway and operate
the electric starter.
E_4km.book Page 38 Tuesday, August 28, 2001 9:51 AM