2002 YAMAHA XJ600N check oil

PERIODIC MAINTENANCE AND MINOR REPAIR
6-7
6Clean the surface of the spark plug
gasket and its mating surface, and then
wipe off any grime from the spark plug
threads.
NOTE:@ If a torque wrench is not available when
installing a spark plug, a good estimate
of the correct torque is 1/4–1/2 turn
past finger tight. However, the spark
plug should be tightened to the speci-
fied torque as soon as possible. @
EAU04185
Engine oil and oil filter
cartridge The engine oil level should be checked
before each ride. In addition, the oil
must be changed and the oil filter car-
tridge replaced at the intervals speci-
fied in the periodic maintenance and
lubrication chart.
To check the engine oil level
1. Place the motorcycle on the cen-
terstand.
NOTE:_ Make sure that the motorcycle is posi-
tioned straight up when checking the oil
level. A slight tilt to the side can result in
a false reading. _2. Start the engine, warm it up for
several minutes, and then turn it
off.
3. Wait a few minutes until the oil set-
tles, and then check the oil level
through the check window located
at the bottom-right side of the
crankcase.NOTE:_ The engine oil should be between the
minimum and maximum level marks. _4. If the engine oil is below the mini-
mum level mark, add sufficient oil
of the recommended type to raise
it to the correct level. Tightening torque:
Spark plug:
12.5 Nm (1.25 m·kgf)
1. Engine oil level check window
2. Maximum level mark
3. Minimum level mark
E_4br.book Page 7 Wednesday, July 25, 2001 1:40 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-10
6
EC000072
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 a higher
grade than “CD”. In addition, do
not use oils labeled “ENERGY
CONSERVING 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. _
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.
EAU02928*
Cleaning the air filter element The air filter element should be cleaned
at the intervals specified in the periodic
maintenance and lubrication chart.
Clean the air filter element more fre-
quently if you are riding in unusually
wet or dusty areas.
1. Remove the seat. (See page 3-12
for seat removal and installation
procedures.)
2. Turn the fuel cock lever to “ON”,
and then remove the fuel cock le-
ver by removing the screw.1. Screw
E_4br.book Page 10 Wednesday, July 25, 2001 1:40 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-21
6


Be careful that water does not en-
ter the brake fluid reservoir when
refilling. Water will significantly
lower the boiling point of the fluid
and may result in vapor lock.


Brake fluid may deteriorate paint-
ed surfaces or plastic parts. Al-
ways clean up spilled fluid
immediately.


As the brake pads wear, it is nor-
mal for the brake fluid level to
gradually go down. However, if the
brake fluid level goes down sud-
denly, have a Yamaha dealer
check the cause.
EAU03985*
Changing the brake fluid Have a Yamaha dealer change the
brake fluid at the intervals specified in
the NOTE after the periodic mainte-
nance and lubrication chart. In addition,
have the oil seals of the brake master
cylinders and calipers as well as the
brake hose replaced at the intervals
listed below or whenever they are dam-
aged or leaking.

Oil seals: Replace every two
years.


Brake hose: Replace every four
years.
EAU00745
Drive chain slack The drive chain slack should be
checked before each ride and adjusted
if necessary.
To check the drive chain slack
1. Place the motorcycle on the
centerstand.
2. Shift the transmission into the neu-
tral position.
3. Spin the rear wheel several times
to locate the tightest portion of the
drive chain.
4. Measure the drive chain slack as
shown.a. Drive chain slack
E_4br.book Page 21 Wednesday, July 25, 2001 1:40 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-23
6
EAU03006
Lubricating the drive chain The drive chain must be cleaned and
lubricated at the intervals specified in
the periodic maintenance and lubrica-
tion chart, otherwise it will quickly wear
out, especially when riding in dusty or
wet areas. Service the drive chain as
follows.
EC000097
CAUTION:@ The drive chain must be lubricated
after washing the motorcycle or
riding in the rain. @1. Clean the drive chain with kero-
sene and a small soft brush.
ECA00053
CAUTION:@ To prevent damaging the O-rings,
do not clean the drive chain with
steam cleaners, high-pressure
washers or inappropriate solvents. @
2. Wipe the drive chain dry.
3. Thoroughly lubricate the drive
chain with a special O-ring chain
lubricant.
ECA00052
CAUTION:@ Do not use engine oil or any other
lubricants for the drive chain, as
they may contain substances that
could damage the O-rings. @
EAU02962
Checking and lubricating the
cables The operation of all control cables and
the condition of the cables should be
checked before each ride, and the ca-
bles and cable ends should be lubricat-
ed if necessary. If a cable is damaged
or does not move smoothly, have a
Yamaha dealer check or replace it.
EW000112
WARNING
@ Damage to the outer sheath may in-
terfere with proper cable operation
and will cause the inner cable to
rust. Replace a damaged cable as
soon as possible to prevent unsafe
conditions. @
Recommended lubricant:
Engine oil
E_4br.book Page 23 Wednesday, July 25, 2001 1:40 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-26
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_4br.book Page 26 Wednesday, July 25, 2001 1:40 PM

10-INDEXAAir filter element, cleaning ...................... 6-10BBattery ................................................... 6-27
Brake and clutch levers, checking and
lubricating ............................................ 6-25
Brake and shift pedals, checking and
lubricating ............................................ 6-24
Brake fluid, changing ............................. 6-21
Brake fluid level, checking...................... 6-20
Brake lever...............................................3-8
Brake light switch (rear), adjusting ......... 6-19
Brake pads, checking............................. 6-19
Brake pedal..............................................3-9
Brake pedal position, adjusting .............. 6-18CCables, checking and lubricating............ 6-23
Carburetors, adjusting............................ 6-12
Care.........................................................7-1
Centerstand and sidestand,
checking and lubricating ...................... 6-25
Clutch lever ..............................................3-7
Clutch lever free play, adjusting ............. 6-17
Conversion table ......................................8-5
DDimmer switch ......................................... 3-6
Drive chain, lubricating .......................... 6-23
Drive chain slack ................................... 6-21
Checking .......................................... 6-21
Adjusting .......................................... 6-22EEngine break-in ....................................... 5-4
Engine oil and oil filter cartridge ............... 6-7
Engine stop switch................................... 3-7FFront fork, checking ............................... 6-26
Fuel ....................................................... 3-10
Fuel cock ............................................... 3-11
Fuel consumption, tips for reducing ......... 5-4
Fuel tank breather hose
(Germany only) ................................... 3-11
Fuel tank cap ........................................... 3-9
Fuses, replacing .................................... 6-29HHandlebar switches ................................. 3-6
Hazard switch .......................................... 3-6
Headlight bulb, replacing (for XJ600S)... 6-30
Headlight bulb, replacing (for XJ600N) .. 6-31
Helmet holders ...................................... 3-13
High beam indicator light ......................... 3-4
Horn switch ............................................. 3-6
IIdentification numbers ..............................9-1
Idling speed, adjusting ...........................6-13
Ignition circuit cut-off system ..................3-16
Indicator and warning lights......................3-3KKey identification number (for XJ600N) ....9-1
Key identification number (for XJ600S) ....9-1LLight switch ..............................................3-7
Luggage strap holders ...........................3-15MMain switch/steering lock .........................3-1
Model label ..............................................9-2NNeutral indicator light ...............................3-3OOil level warning light ...............................3-4PPanel, removing and installing..................6-5
Parking.....................................................5-5
Part locations ...........................................2-1
Pass switch ..............................................3-6
Periodic maintenance and lubrication
chart ......................................................6-2
Pre-operation check list ............................4-1
E_4br.book Page 1 Wednesday, July 25, 2001 1:40 PM