ECU YAMAHA XJ900S 2002 Owners Manual

INSTRUMENT AND CONTROL FUNCTIONS
3-12
3
To install the seat
Insert the projections on the front of the
seat into the seat holder, push the rear
of the seat down to lock it in place, and
then remove the key.
NOTE:@ Make sure that the seat is properly se-
cured before riding. @
EAU00263
Helmet holder The helmet holder is located under the
seat.
To secure a helmet to the helmet
holder
1. Remove the seat. (See page 3-11
for removal and installation proce-
dures.)
2. Attach the helmet to the helmet
holder, and then securely install
the seat.
EW000030
WARNING
@ Never ride with a helmet attached to
the helmet holder, since the helmet
may hit objects, causing loss of
control and possibly an accident. @To release the helmet from the
helmet holder
Remove the seat, remove the helmet
from the helmet holder, and then install
the seat.
1. Projection (× 2)
2. Seat holder
1. Helmet holder
E_4km.book Page 12 Tuesday, August 28, 2001 9:51 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-13
3
EAU04292
Storage compartment This storage compartment is designed
to hold an optional genuine Yamaha U-
LOCK. (Other locks may not fit.) When
placing a U-LOCK in the storage com-
partment, securely fasten it with the
straps. When the U-LOCK is not in the
storage compartment, be sure to se-
cure the straps to prevent losing them.
When storing the owner’s manual or
other documents in the storage com-
partment, be sure to wrap them in a
plastic bag so that they will not get wet.
When washing the motorcycle, be
careful not to let any water enter the
storage compartment.
EAU00285
Adjusting the front fork This front fork is equipped with spring
preload adjusting bolts.
EW000035
WARNING
_ Always adjust both fork legs equal-
ly, otherwise poor handling and loss
of stability may result. _Adjust the spring preload as follows.
To increase the spring preload and
thereby harden the suspension, turn
the adjusting bolt on each fork leg in di-
rection
a. To decrease the spring pre-
load and thereby soften the
suspension, turn the adjusting bolt on
each fork leg in direction
b.
NOTE:_ Align the appropriate groove on the ad-
justing mechanism with the top of the
front fork cap bolt. _CI-10E
1. U-LOCK
2. Strap (× 2)
1. Spring preload adjusting bolt
1. Current setting
2. Front fork cap bolt
Setting
Minimum (soft) 7
Standard 4
Maximum (hard) 1
E_4km.book Page 13 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
6-19
6Tire information
This motorcycle is equipped with cast
wheels and tubeless tires with valves.
EW000080
WARNING
@

The front and rear tires should
be of the same make and de-
sign, otherwise the handling
characteristics of the motor-
cycle cannot be guaranteed.


After extensive tests, only the
tires listed below have been ap-
proved for this model by
Yamaha Motor Co., Ltd.


Always make sure that the valve
caps are securely installed to
prevent air pressure leakage.


Use only the tire valves and
valve cores listed below to
avoid tire deflation during a
high-speed ride.
@CE-10E
CE-14EEAU00684
WARNING
@ This motorcycle is fitted with super-
high-speed tires. Note the following
points in order to make the most ef-
ficient use of these tires.

Use only the specified replace-
ment tires. Other tires may run
the danger of bursting at super
high speeds.


Brand-new tires can have a rela-
tively poor grip on certain road
surfaces until they have been
“broken in”. Therefore, it is ad-
visable before doing any high-
speed riding to ride conserva-
tively for approximately 100 km
after installing a new tire.


The tires must be warmed up
before a high-speed run.


Always adjust the tire air pres-
sure according to the operating
conditions.
@
1. Tire air valve
2. Tire air valve core
3. Tire air valve cap with seal
FRONT
Manufacturer Size Model
Metzeler120/70-17 58V
ME33
120/70-17 M/C 58V
Dunlop120/70-17 58V
K505F
120/70-17 M/C 58V
Bridgestone120/70-17 58V
G601
120/70-17 M/C 58V
REAR
Manufacturer Size Model
Metzeler150/70-17 69V
ME55A
150/70-17 M/C 69V
Dunlop150/70-17 69V
K505
150/70-17 M/C 69V
Bridgestone150/70-17 69V
G602
150/70-17 M/C 69V
FRONT & REAR
Tire air valve TR412
Valve core #9000A (original)
E_4km.book Page 19 Tuesday, August 28, 2001 9:51 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-27
6
EAU02939
Checking the front fork The condition and operation of the front
fork must be checked as follows at the
intervals specified in the periodic main-
tenance and lubrication chart.
To check the condition
EW000115
WARNING
@ Securely support the motorcycle so
that there is no danger of it falling
over. @Check the inner tubes for scratches,
damage and excessive oil leakage.To check the operation
1. Place the motorcycle on a level
surface and hold it in an upright
position.
2. While applying the front brake,
push down hard on the handle-
bars several times to check if the
front fork compresses and re-
bounds smoothly.
EC000098
CAUTION:@ If any damage is found or the front
fork does not operate smoothly,
have a Yamaha dealer check or re-
pair it. @
EAU00794
Checking the steering Worn or loose steering bearings may
cause danger. Therefore, the operation
of the steering must be checked as fol-
lows at the intervals specified in the pe-
riodic maintenance and lubrication
chart.
1. Place a stand under the engine to
raise the front wheel off the
ground.
EW000115
WARNING
@ Securely support the motorcycle so
that there is no danger of it falling
over. @
E_4km.book Page 27 Tuesday, August 28, 2001 9:51 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-32
6 3. Place a new headlight bulb into
position, and then secure it with
the bulb holder.
EC000105
CAUTION:_ 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 adversely af-
fected. Thoroughly clean off any dirt
and fingerprints on the headlight
bulb using a cloth moistened with
alcohol or thinner. _4. Install the headlight bulb cover,
and then connect the coupler.
5. Have a Yamaha dealer adjust the
headlight beam if necessary.
EAU01623
Replacing the tail/brake light
bulb 1. Remove the tail/brake light lens by
removing the screws.
2. Remove the defective bulb by
pushing it in and turning it counter-
clockwise.
3. Insert a new bulb into the socket,
push it in, and then turn it clock-
wise until it stops.
4. Install the lens by installing the
screws.
EC000108
CAUTION:_ Do not overtighten the screws, oth-
erwise the lens may break. _
EAU03497
Replacing a turn signal light
bulb 1. Remove the turn signal light lens
by removing the screw.
2. Remove the defective bulb by
pushing it in and turning it counter-
clockwise.
3. Insert a new bulb into the socket,
push it in, and then turn it clock-
wise until it stops.
4. Install the lens by installing the
screw.
ECA00065
CAUTION:_ Do not overtighten the screw, other-
wise the lens may break. _
1. Do not touch this area.
1. Screw (× 2)
1. Screw
E_4km.book Page 32 Tuesday, August 28, 2001 9:51 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-33
6
EAU03598
Front wheel To remove the front wheel
EW000122
WARNING
@

It is advisable to have a Yamaha
dealer service the wheel.


Securely support the motor-
cycle so that there is no danger
of it falling over.
@1. Place the motorcycle on the
centerstand.
2. Disconnect the speedometer ca-
ble from the front wheel.3. Remove the brake hose holders
by removing the bolts.
4. Remove the brake calipers by re-
moving the bolts.
ECA00047
CAUTION:@ Do not pull the brake lever after the
brake caliper has been removed,
otherwise the brake pads will be
forced shut. @
5. Loosen the front wheel axle pinch
bolt, then the wheel axle.
6. Pull the wheel axle out, and then
remove the wheel.
1. Speedometer cable
1. Bolt (× 3)
2. Brake hose holder
3. Brake caliperLeft
Right
1. Front wheel axle pinch bolt
2. Wheel axle
E_4km.book Page 33 Tuesday, August 28, 2001 9:51 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-35
6
EAU04361
Rear wheel To remove the rear wheel
EW000122
WARNING
_

It is advisable to have a Yamaha
dealer service the wheel.


Securely support the motor-
cycle so that there is no danger
of it falling over.
_
1. Remove the axle nut, and then
loosen the rear wheel axle pinch
bolt.
2. Place the motorcycle on the cen-
terstand.3. Remove the brake caliper by re-
moving the bolts.
4. Disconnect the brake torque rod
from the brake caliper bracket by
removing the cotter pin, the nut,
and the bolt.
5. While supporting the rear wheel,
pull the wheel axle out.
6. Remove the brake caliper bracket
and spacer.
7. Pull the wheel to the right to sepa-
rate it from the final gear case, and
then remove it.
1. Rear wheel axle pinch bolt
1. Axle nut
1. Nut
2. Bolt
3. Brake torque rod
4. Cotter pin
5. Brake caliper bracket
6. Bolt (× 2)
E_4km.book Page 35 Tuesday, August 28, 2001 9:51 AM