warning YAMAHA XJ900S 2002 User Guide

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

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

OPERATION AND IMPORTANT RIDING POINTS
5-5
5
EAU04032*
0–1,000 km
Avoid prolonged operation above
5,000 r/min.
1,000–1,600 km
Avoid prolonged operation above
6,000 r/min.
EC000056*
CAUTION:_ After 1,000 km of operation, the en-
gine oil and final gear oil must be
changed, and the oil filter cartridge
replaced. _1,600 km and beyond
The vehicle can now be operated nor-
mally.
EC000053
CAUTION:_

Keep the engine speed out of
the tachometer red zone.


If any engine trouble should oc-
cur during the engine break-in
period, immediately have a
Yamaha dealer check the vehi-
cle.
_
EAU00460
Parking When parking, stop the engine, and
then remove the key from the main
switch.
EW000058
WARNING
@

Since the engine and exhaust
system can become very hot,
park in a place where pedestri-
ans or children are not likely to
touch them.


Do not park on a slope or on
soft ground, otherwise the
motorcycle may overturn.
@
E_4km.book Page 5 Tuesday, August 28, 2001 9:51 AM

6-1
6
EAU00462
6-PERIODIC MAINTENANCE AND MINOR REPAIR
EAU00464
Safety is an obligation of the owner.
Periodic inspection, adjustment and lu-
brication will keep your vehicle in the
safest and most efficient condition pos-
sible. The most important points of in-
spection, adjustment, and lubrication
are explained on the following pages.
The intervals given in the periodic
maintenance and lubrication chart
should be simply considered as a gen-
eral guide under normal riding condi-
tions. However, DEPENDING ON THE
WEATHER, TERRAIN, GEOGRAPHI-
CAL LOCATION, AND INDIVIDUAL
USE, THE MAINTENANCE INTER-
VALS MAY NEED TO BE
SHORTENED.
EW000060
WARNING
@ If you are not familiar with motor-
cycle maintenance work, have a
Yamaha dealer do it for you. @
EAU03758
Owner’s tool kit The owner’s tool kit is located under
the seat. (See page 3-11 for seat re-
moval and installation procedures.)
The service information included in this
manual and the tools provided in the
owner’s tool kit are intended to assist
you in the performance of preventive
maintenance and minor repairs. How-
ever, additional tools such as a torque
wrench may be necessary to perform
certain maintenance work correctly.
NOTE:_ If you do not have the tools or experi-
ence required for a particular job, have
a Yamaha dealer perform it for you. _
EW000063
WARNING
_ Modifications not approved by
Yamaha may cause loss of perfor-
mance and render the vehicle un-
safe for use. Consult a Yamaha
dealer before attempting any chang-
es. _
1. Owner’s tool kit
E_4km.book Page 1 Tuesday, August 28, 2001 9:51 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-10
6 5. Apply a thin coat of engine oil to
the O-ring of the new oil filter car-
tridge.
NOTE:_ Make sure that the O-ring is properly
seated. _6. Install the new oil filter cartridge
with an oil filter wrench, and then
tighten it to the specified torque
with a torque wrench.7. Install the engine oil drain bolt, and
then tighten it to the specified
torque.
8. Add the specified amount of the
recommended engine oil, and
then install and tighten the oil filler
cap.
ECA00105
CAUTION:_

In order to prevent clutch slip-
page (since the engine oil also
lubricates the clutch), do not
mix any chemical additives with
the oil or use oils of grade “CD”
or higher. In addition, do not
use oils labeled “ENERGY CON-
SERVING II” or higher.


Make sure that no foreign mate-
rial enters the crankcase.
_9. Start the engine, and then let it idle
for several minutes while checking
it for oil leakage. If oil is leaking,
immediately turn the engine off
and check for the cause.NOTE:_ After the engine is started, the engine
oil level warning light should go off if the
oil level is sufficient. _
1. O-ring
Tightening torque:
Oil filter cartridge:
17 Nm (1.7 m·kgf)
Tightening torque:
Engine oil drain bolt:
43 Nm (4.3 m·kgf)
Recommended engine oil:
See page 8-1.
Oil quantity:
Without oil filter cartridge
replacement:
3.2 L
With oil filter cartridge
replacement:
3.4 L
Total amount (dry engine):
4.4 L
E_4km.book Page 10 Tuesday, August 28, 2001 9:51 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-11
6
EC000067
CAUTION:_ If the oil level warning light flickers
or remains on, immediately turn the
engine off and have a Yamaha deal-
er check the vehicle. _10. Turn the engine off, and then
check the oil level and correct it if
necessary.
EAU03681
Final gear oil The final gear case must be checked
for oil leakage before each ride. If any
leakage is found, have a Yamaha deal-
er check and repair the motorcycle. In
addition, the final gear oil must be
changed as follows at the intervals
specified in the periodic maintenance
and lubrication chart.
EW000066
WARNING
_

Make sure that no foreign mate-
rial enters the final gear case.


Make sure that no oil gets on
the tire or wheel.
_
To check the final gear oil level
1. Place the motorcycle on the cen-
terstand.NOTE:_

The final gear oil level must be
checked on a cold engine.


Make sure that the motorcycle is
positioned straight up when
checking the oil level. A slight tilt to
the side can result in a false read-
ing.
_
E_4km.book Page 11 Tuesday, August 28, 2001 9:51 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-17
6
EAU00658
Tires To maximize the performance, durabil-
ity, and safe operation of your motor-
cycle, note the following points
regarding the specified tires.
Tire air pressure
The tire air pressure should be
checked and, if necessary, adjusted
before each ride.
EW000082
WARNING
@

The tire air pressure must be
checked and adjusted on cold
tires (i.e., when the temperature
of the tires equals the ambient
temperature).


The tire air pressure must be
adjusted in accordance with the
riding speed and with the total
weight of rider, passenger, car-
go, and accessories approved
for this model.
@
CE-01E
CE-07E
EWA00012
WARNING
@ Because loading has an enormous
impact on the handling, braking,
performance and safety characteris-
tics of your motorcycle, you should
keep the following precautions in
mind.

NEVER OVERLOAD THE
MOTORCYCLE! Operation of an
overloaded motorcycle may re-
sult in tire damage, loss of con-
trol, or severe injury. Make surethat the total weight of rider,
passenger, cargo, and accesso-
ries does not exceed the speci-
fied maximum load for the
vehicle.


Do not carry along loosely
packed items, which can shift
during a ride.


Securely pack the heaviest
items close to the center of the
motorcycle and distribute the
weight evenly on both sides.


Adjust the suspension and tire
air pressure with regard to the
load.


Check the tire condition and air
pressure before each ride.
@
Tire air pressure
(measured on cold tires)
Load* Front Rear
Up to 90 kg225 kPa
(2.25 kgf/cm
2,
2.25 bar)250 kPa
(2.50 kgf/cm
2,
2.50 bar)
90 kg–maximum250 kPa
(2.50 kgf/cm
2,
2.50 bar)290 kPa
(2.90 kgf/cm
2,
2.90 bar)
High-speed riding250 kPa
(2.50 kgf/cm
2,
2.50 bar)290 kPa
(2.90 kgf/cm
2,
2.90 bar)
Maximum load* 205 kg
* Total weight of rider, passenger, cargo and
accessories
E_4km.book Page 17 Tuesday, August 28, 2001 9:51 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-18
6 Tire inspection
The tires must be checked before each
ride. If the center tread depth reaches
the specified limit, if the tire has a nail
or glass fragments in it, or if the side-
wall is cracked, have a Yamaha dealer
replace the tire immediately.
CE-08ENOTE:@ The tire tread depth limits may differ
from country to country. Always comply
with the local regulations. @
EW000079
WARNING
@

Have a Yamaha dealer replace
excessively worn tires. Besides
being illegal, operating the
motorcycle with excessively
worn tires decreases riding sta-
bility and can lead to loss of
control.


The replacement of all wheel-
and brake-related parts, includ-
ing the tires, should be left to a
Yamaha dealer, who has the
necessary professional knowl-
edge and experience.
@
1. Tire sidewall
a. Tire tread depthMinimum tire tread depth
(front and rear)1.6 mm
E_4km.book Page 18 Tuesday, August 28, 2001 9:51 AM