maintenance YAMAHA XJ900S 2000 User Guide

PERIODIC MAINTENANCE AND MINOR REPAIR
6-8
6
EAU02938
Engine oilOil level inspection
1. Place the motorcycle on the cen-
terstand. Warm up the engine for
several minutes.NOTE:@ Be sure the motorcycle is positioned
straight up when checking the oil level.
A slight tilt toward the side can result in
false readings. @
2. With the engine stopped, check
the oil level through the level win-
dow located at the lower part of
the right side crankcase cover.NOTE:@ Wait a few minutes until the oil level
settles before checking. @3. The oil level should be between
the maximum and minimum
marks. If the level is low, fill the en-
gine with sufficient oil to reach the
specified level.Engine oil and oil filter cartridge re-
placement
1. Warm up the engine for several
minutes.
2. Stop the engine. Place an oil pan
under the engine and remove the
oil filler cap.
1. Engine oil level window
2. Maximum level mark
3. Minimum level mark
1. Engine oil filler cap

PERIODIC MAINTENANCE AND MINOR REPAIR
6-9
63. Remove the drain bolt and drain
the oil.4. Remove the oil filter by using an oil
filter wrench.
NOTE:@ An oil filter wrench is available at a
nearby Yamaha dealer. @5. Install the drain bolt and tighten it
to the specified torque.6. Apply a light coat of engine oil to
the O-ring of the new oil filter.
NOTE:@ Make sure the O-ring is seated proper-
ly. @7. Install the new oil filter and tighten
it to the specified torque with an oil
filter wrench.NOTE:@ When installing the oil filter, tighten it to
the proper torque by using a torque
wrench. @
1. Engine oil drain bolt
1. Oil filter cartrige
2. Oil filter wrench
Tightening torque:
Drain bolt:
43 Nm (4.3 m·kg)
1. O-ring

PERIODIC MAINTENANCE AND MINOR REPAIR
6-10
6 8. Fill the engine with sufficient oil to
reach the specified level. Install
the oil filler cap and tighten it.
EC000066
CAUTION:@ l
Do not put in any chemical addi-
tives. Engine oil also lubricates
the clutch and additives could
cause clutch slippage.
l
Be sure no foreign material en-
ters the crankcase.
@9. Start the engine and warm it up for
several minutes. While warming
up, check for oil leakage. If oil
leakage is found, stop the engine
immediately and check for the
cause.NOTE:@ After the engine is started, the oil level
indicator light should go off if the oil is at
the specified level. @
EC000067
CAUTION:@ If the indicator light flickers or re-
mains on, immediately stop the en-
gine and consult with a Yamaha
dealer. @
Tightening torque:
Oil filter:
17 Nm (1.7 m·kg)
Recommended oil:
See page 8-1.
Oil quantity:
Total amount:
4.4 L
Periodic oil change:
3.2 L
With oil filter replacement:
3.4 L

PERIODIC MAINTENANCE AND MINOR REPAIR
6-11
6
EAU02975
Final gear oil replacement1. Put the motorcycle on the center-
stand.
2. Place an oil pan under the final
gear case.
3. Remove the oil filler bolt and the
drain bolt to drain the oil.
4. Install and tighten the drain bolt to
the specified torque.5. Fill the gear case with the recom-
mended oil.
NOTE:@ “GL-4” is a quality and additive rating.
Hypoid gear oils rated “GL-5” or “GL-6”
may also be used. @
EW000066
WARNING
@ Do not let foreign material enter the
final gear case. Be sure oil does not
get on the tire or wheel. @6. Install the oil filler bolt.
7. After replacing the final gear oil, be
sure to check for oil leakage.
EAU00574*
Air filterThe air filter should be cleaned at the
specified intervals. It should be cleaned
more frequently if you are riding in un-
usually wet or dusty areas.
1. Remove the seat.
2. Turn the fuel cock lever to “OFF”
and disconnect the fuel hose.
1. Final gear oil drain bolt
2. Final gear oil
3. Correct level
4. Final gear oil filler boltTightening torque:
Drain bolt:
23 Nm (2.3 m·kg)
Recommended oil:
SAE 80 API GL-4 Hypoid gear oil
If desired, an SAE 80W90 hypoid
gear oil may be used for all condi-
tions.
Final gear oil quantity:
0.2 L
1. Fuel tank
2. Fuel sender lead
3. Fuel hose
4. Fuel cock

PERIODIC MAINTENANCE AND MINOR REPAIR
6-12
6 3. Remove the fuel tank bolts.
4. Disconnect the fuel sender lead
and remove the fuel tank.5. Remove the air filter case cover by
removing the screws.6. Pull out the air filter.
1. Bolt (´ 2)
1. Screw (´ 4)
1. Air filter

PERIODIC MAINTENANCE AND MINOR REPAIR
6-13
67. Tap the air filter lightly to remove
most of the dust and dirt and blow
out the remaining dirt with com-
pressed as shown. If the air filter is
damaged, replace it.
8. Reassemble by reversing the re-
moval procedure.
EC000082
CAUTION:@ l
Make sure the air filter is prop-
erly seated in the air filter case.
l
The engine should never be run
without the air filter installed.
Excessive piston and/or cylin-
der wear may result.
@
EAU00630
Carburetor adjustmentThe carburetors are important parts of
the engine and require very sophisti-
cated adjustment. Most adjustments
should be left to a Yamaha dealer who
has the professional knowledge and
experience to do so. However, the idle
speed may be adjusted by the owner
as part of routine maintenance.
EC000095
CAUTION:@ The carburetors were set at the
Yamaha factory after many tests. If
they are changed, poor engine per-
formance and damage may result. @
EAU00632
Idle speed adjustment1. Start the engine and warm it up for
a few minutes at approximately
1,000 to 2,000 r/min. Occasionally
rev the engine to 4,000 to
5,000 r/min. The engine is warm
when it quickly responds to the
throttle.

PERIODIC MAINTENANCE AND MINOR REPAIR
6-14
6 2. Set the idle to the specified engine
speed by adjusting the throttle
stop screw. Turn the screw in di-
rection
a to increase engine
speed and in direction
b to de-
crease engine speed.
NOTE:@ If the specified idle speed cannot be
obtained by performing the above ad-
justment, consult a Yamaha dealer. @
EAU00635
Throttle cable free play
inspectionThere should be a free play of 3 ~
5 mm at the throttle grip. If the free play
is incorrect, ask a Yamaha dealer to
make this adjustment.
EAU00637
Valve clearance adjustmentThe correct valve clearance changes
with use, resulting in improper fuel/air
supply or engine noise. To prevent this,
the valve clearance must be adjusted
regularly. This adjustment however,
should be left to a professional
Yamaha service technician.
1. Throttle stop screw
Standard idle speed:
950 ~ 1,050 r/min
a. Free play

PERIODIC MAINTENANCE AND MINOR REPAIR
6-15
6
EAU00658
TiresTo ensure maximum performance,
long service and safe operation, note
the following:
Tire air pressure
Always check and adjust the tire pres-
sure before operating the motorcycle.
EW000082
WARNING
@ Tire inflation pressure should be
checked and adjusted when the
temperature of the tire equals the
ambient air temperature. Tire infla-
tion pressure must be adjusted ac-
cording to total weight of cargo,
rider, passenger, and accessories
(fairing, saddlebags, etc. if approved
for this model), and vehicle speed. @
CE-33EEW000083
WARNING
@ Proper loading of your motorcycle
is important for several characteris-
tics of your motorcycle, such as
handling, braking, performance and
safety. Do not carry loosely packed
items that can shift. Securely pack
your heaviest items close to the
center of the motorcycle, and dis-
tribute the weight evenly from side
to side. Properly adjust the suspen-
sion for your load, and check the
condition and pressure of your tires.
NEVER OVERLOAD YOUR MOTOR-
CYCLE. Make sure the total weight
of the cargo, rider, passenger, and
accessories (fairing, saddlebags,
etc. if approved for this model) does
not exceed the maximum load of the
motorcycle. Operation of an over-
loaded motorcycle could cause tire
damage, an accident, or even injury. @
Maximum load* 205 kg
Cold tire pressure Front Rear
Up to 90 kg load*225 kPa
(2.25 kg/cm
2,
2.25 bar)250 kPa
(2.50 kg/cm
2,
2.50 bar)
90 kg Maximum load*250 kPa
(2.50 kg/cm
2,
2.50 bar)290 kPa
(2.90 kg/cm
2,
2.90 bar)
High speed riding250 kPa
(2.50 kg/cm
2,
2.50 bar)290 kPa
(2.90 kg/cm
2,
2.90 bar)
* Load is the total weight of cargo, rider, passenger
and accessories.

PERIODIC MAINTENANCE AND MINOR REPAIR
6-16
6 Tire inspection
Always check the tires before operating
the motorcycle. If center tread depth
reaches the limit as shown, if the tire
has a nail or glass fragments in it, or if
the side wall is cracked, contact a
Yamaha dealer immediately and have
the tire replaced.
EW000095
WARNING
@ Operating the motorcycle with ex-
cessively worn tires decrease riding
stability and can lead to loss of con-
trol. Have excessively worn tires re-
placed by a Yamaha dealer
immediately. Brakes, tires, and relat-
ed wheel parts replacement should
be left to a Yamaha Service Techni-
cian. @CE-26ENOTE:@ These limits may be different by regula-
tion from country to country. If so, con-
form to the limits specified by the
regulations of your own country. @
Tire information
This motorcycle is equipped with tube-
less tires, tire valves and cast wheels.
1. Side wall
a. Tread depth
Minimum tire tread depth
(front and rear)1.6 mm
1. Tire valve
2. Valve core
3. Valve cap with seal

PERIODIC MAINTENANCE AND MINOR REPAIR
6-17
6
EW000080
WARNING
@ l
After extensive tests, the tires
mentioned below have been ap-
proved by Yamaha Motor Co.,
Ltd. for this model. No guaran-
tee for handling characteristics
can be given if tire combina-
tions other than what is ap-
proved are used on this
motorcycle. The front and rear
tires should be of the same
manufacture and design.
l
The use of tire valves and valve
cores other than listed below
could cause tire deflation dur-
ing extreme high speed riding.
Always use genuine parts or
their equivalent for replace-
ment.
l
Be sure to install the valve caps
securely, as these are important
to prevent air pressure leakage
during extreme high speed
riding.
@
CE-10E
CE-12EEAU00684
WARNING
@ This motorcycle is fitted with super
high-speed running tires. The fol-
lowing points must be observed in
order for you to make fully effective
use of these tires.l
Never fail to use the specified
tires in tire replacement. Other
tires may have a danger of
bursting at super high-speeds.
l
New tires have a relatively low
grip on the road surface until
they have been slightly worn.
Therefore, approximately 100 km
should be traveled at normal
speed before any high-speed
riding is done.
l
Before any high-speed runs, the
tires should be warmed-up suf-
ficiently.
l
Always inflate to the correct tire
pressure according to the oper-
ating conditions.
@
FRONT
Manufacturer Size Type
Metzeler 120/70-17 58V ME33
Dunlop 120/70-17 58V K505F
Bridgestone 120/70-17 58V G601
REAR
Manufacturer Size Type
Metzeler 150/70-17 69V ME55A
Dunlop 150/70-17 69V K505
Bridgestone 150/70-17 69V G602
Type
Tire valve TR412
Valve core #9000A (original)