engine YAMAHA XJ600S 2002 User Guide

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
Front brake
Check operation, fluid level and fluid leakage.
Fill with DOT 4 brake fluid if necessary.6-19–6-21
Rear brake6-18–6-21
ClutchCheck operation, condition and free play.
Adjust if necessary.6-17–6-18
Throttle grip and housing
Make sure that operation is smooth.
Check free play.
If necessary, have Yamaha dealer make adjustment or lubricate.
6-13, 6-24
Engine oilCheck oil level.
Fill with oil if necessary.6-7–6-10
Drive chainCheck chain slack and condition.
Adjust if necessary.6-21–6-23
Wheels and tiresCheck tire pressure, wear and damage. 6-14–6-17
Control and meter cablesCheck smooth operation.
Lubricate if necessary.6-23
Brake and shift pedal
shaftsCheck smooth operation.
Lubricate if necessary.6-24
Brake and clutch lever
pivotsCheck smooth operation.
Lubricate if necessary.6-25
Center and sidestand
pivotsCheck smooth operation.
Lubricate if necessary.6-25
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OPERATION AND IMPORTANT RIDING POINTS
5
Starting a cold engine ....................................................................... 5-1
Starting a warm engine ..................................................................... 5-2
Shifting .............................................................................................. 5-3
Recommended shift points (for Switzerland only) ............................. 5-3
Tips for reducing fuel consumption ................................................... 5-4
Engine break-in ................................................................................. 5-4
Parking .............................................................................................. 5-5
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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 ventila-
tion.


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.
@
EAU00381*
Starting a cold 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 fuel cock lever to “ON”.
2. Turn the key to “ON” and make
sure that the engine stop switch is
set to “”.
3. 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
circuit. @4. Turn the starter (choke) on and
completely close the throttle. (See
page 3-12 for starter (choke) oper-
ation.)
5. Start the engine by pushing the
start switch.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. @
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OPERATION AND IMPORTANT RIDING POINTS
5-2
5
EC000034
CAUTION:@ The oil level warning light should
come on when the start switch is
pushed, and it should go off when
the start switch is released. If the oil
level warning light flickers or re-
mains on after starting, immediately
stop the engine, and then check the
engine oil level and the vehicle for
oil leakage. If necessary, add engine
oil, 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 after
starting with sufficient engine oil,
have a Yamaha dealer check the
electrical circuit. @6. 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! @7. 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. @
EAU01258
Starting a warm engine Follow the same procedure as for start-
ing a cold engine with the exception
that the starter (choke) is not required
when the engine is warm.
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OPERATION AND IMPORTANT RIDING POINTS
5-3
5
EAU00423
Shifting Shifting gears lets you control the
amount of engine power available for
starting off, accelerating, climbing hills,
etc.
The gear positions are shown in the
illustration.NOTE:@ To shift the transmission into the neu-
tral position, press the shift pedal down
repeatedly until it reaches the end of its
travel, and then slightly raise it. @
EC000048
CAUTION:@

Even with the transmission in
the neutral position, do not
coast for long periods of time
with the engine off, and do not
tow the motorcycle for long dis-
tances. The transmission is
properly lubricated only when
the engine is running. Inade-
quate lubrication may damage
the transmission.


Always use the clutch while
changing gears to avoid dam-
aging the engine, transmission,
and drive train, which are not
designed to withstand the
shock of forced shifting.
@
EAU02937
Recommended shift points
(for Switzerland only) The recommended shift points during
acceleration are shown in the table
below.CF-02ENOTE:@ When shifting down two gears at a
time, reduce the speed accordingly
(e.g., down to 35 km/h when shifting
from 5th to 3rd gear). @
1. Shift pedal
N. Neutral position
Shift point
(km/h)
1st→2nd
2nd→3rd
3rd→4th
4th→5th
5th→6th20
30
40
50
60
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OPERATION AND IMPORTANT RIDING POINTS
5-4
5
EAU00424
Tips for reducing fuel
consumption Fuel consumption depends largely on
your riding style. Consider the following
tips to reduce fuel consumption:

Thoroughly warm up the engine.


Turn the starter (choke) off as
soon as possible.


Shift up swiftly, and avoid high en-
gine speeds during acceleration.


Do not rev the engine while shift-
ing down, and avoid high engine
speeds with no load on the engine.


Turn the engine off instead of let-
ting it idle for an extended length
of time (e.g., in traffic jams, at traf-
fic lights or at railroad crossings).
EAU00436
Engine break-in There is never a more important period
in the life of your engine than the period
between 0 and 1,000 km. For this rea-
son, you should read the following ma-
terial carefully.
Since the engine is brand new, do not
put an excessive load on it for the first
1,000 km. The various parts in the en-
gine wear and polish themselves to the
correct operating clearances. During
this period, prolonged full-throttle oper-
ation or any condition that might result
in engine overheating must be avoided.
EAU00440*
0–150 km

Avoid prolonged operation above
5,000 r/min.


After every hour of operation, stop
the engine, and then let it cool for
five to ten minutes.


Vary the engine speed from time
to time. Do not operate the engine
at one set throttle position.
150–500 km


Avoid prolonged operation above
6,000 r/min.


Rev the engine freely through the
gears, but do not use full throttle at
any time.
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OPERATION AND IMPORTANT RIDING POINTS
5-5
5500–1,000 km


Avoid prolonged full-throttle oper-
ation.


Avoid prolonged operation above
7,000 r/min.
EC000052*
CAUTION:@ After 1,000 km of operation, the en-
gine oil must be changed and the oil
filter cartridge replaced. @1,000 km and beyond
The vehicle can now be operated
normally.
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
vehicle.
@
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.
@
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6
PERIODIC MAINTENANCE AND MINOR REPAIR
Owner’s tool kit .................................................... 6-1
Periodic maintenance and lubrication chart ......... 6-2
Removing and installing the panel ....................... 6-5
Checking the spark plugs .................................... 6-6
Engine oil and oil filter cartridge .......................... 6-7
Cleaning the air filter element ............................ 6-10
Adjusting the carburetors ................................... 6-12
Adjusting the engine idling speed ...................... 6-13
Adjusting the throttle cable free play .................. 6-13
Adjusting the valve clearance ............................ 6-14
Tires ................................................................... 6-14
Cast wheels ....................................................... 6-17
Adjusting the clutch lever free play .................... 6-17
Adjusting the brake pedal position ..................... 6-18
Adjusting the rear brake light switch .................. 6-19
Checking the front and rear brake pads ............. 6-19
Checking the brake fluid level ............................ 6-20
Changing the brake fluid .................................... 6-21
Drive chain slack ................................................ 6-21
Lubricating the drive chain ................................. 6-23
Checking and lubricating the cables .................. 6-23Checking and lubricating the throttle grip and
cable ............................................................... 6-24
Checking and lubricating the brake and shift
pedals ............................................................. 6-24
Checking and lubricating the brake and clutch
levers ............................................................... 6-25
Checking and lubricating the centerstand and
sidestand ......................................................... 6-25
Lubricating the rear suspension ........................ 6-25
Checking the front fork ...................................... 6-26
Checking the steering ....................................... 6-26
Checking the wheel bearings ............................ 6-27
Battery ............................................................... 6-27
Replacing the fuses .......................................... 6-29
Replacing the headlight bulb (for XJ600S)......... 6-30
Replacing the headlight bulb (for XJ600N) ........ 6-31
Front wheel ....................................................... 6-33
Rear wheel ........................................................ 6-35
Troubleshooting ................................................. 6-36
Troubleshooting chart ........................................ 6-37
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-4
6
EAU03884
NOTE:_

The air filter needs more frequent service if you are riding in unusually wet or dusty areas.


Hydraulic brake service
Regularly check and, if necessary, correct the brake fluid level.
Every two years replace the internal components of the brake master cylinders and calipers, and change the brake
fluid.
Replace the brake hoses every four years and if cracked or damaged.
_22
*CarburetorsCheck starter (choke) operation.
Adjust engine idling speed and synchronization.√√√√√ √
23 Engine oilChange.√√√√√ √
Check oil level and vehicle for oil leakage.√√√√√ √
24 Engine oil filter cartridgeReplace.√√√
25*Front and rear brake
switchesCheck operation.√√√√√ √
26 Moving parts and cablesLubricate.√√√√ √
27*Lights, signals and
switchesCheck operation.
Adjust headlight beam.√√√√√ √ NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING (×1,000 km)
Annual
check
1 10203040
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-6
6 To install the panel
1. Place the panel in the original po-
sition, and then install the screws.
2. Install the seat.
EAU01880
Checking the spark plugs The spark plugs are important engine
components, which should be checked
periodically, preferably by a Yamaha
dealer. Since heat and deposits will
cause any spark plug to slowly erode,
they should be removed and checked
in accordance with the periodic mainte-
nance and lubrication chart. In addition,
the condition of the spark plugs can re-
veal the condition of the engine.The porcelain insulator around the cen-
ter electrode of each spark plug should
be a medium-to-light tan (the ideal col-
or when the motorcycle is ridden nor-
mally), and all spark plugs installed in
the engine should have the same color.
If any spark plug shows a distinctly dif-
ferent color, the engine could be defec-
tive. Do not attempt to diagnose such
problems yourself. Instead, have a
Yamaha dealer check the motorcycle.
If a spark plug shows signs of electrode
erosion and excessive carbon or other
deposits, it should be replaced.
Before installing a spark plug, the spark
plug gap should be measured with a
wire thickness gauge and, if necessary,
adjusted to specification.a. Spark plug gap
Specified spark plug:
CR8E (NGK) or
U24ESR-N (DENSO)
Spark plug gap:
0.7–0.8 mm
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