2002 YAMAHA YZF-R6 checking oil

6
PERIODIC MAINTENANCE AND MINOR REPAIR
Owner’s tool kit .................................................... 6-1
Periodic maintenance and lubrication chart ......... 6-3
Removing and installing the cowlings and
panel .................................................................. 6-6
Checking the spark plugs .................................... 6-8
Engine oil and oil filter cartridge .......................... 6-9
Coolant .............................................................. 6-13
Checking the air filter element ........................... 6-17
Air intake duct .................................................... 6-19
Adjusting the carburetors ................................... 6-20
Adjusting the engine idling speed ...................... 6-20
Adjusting the throttle cable free play .................. 6-21
Adjusting the valve clearance ............................ 6-21
Tires ................................................................... 6-21
Cast wheels ....................................................... 6-24
Adjusting the clutch lever free play .................... 6-25
Adjusting the brake pedal position ..................... 6-26
Adjusting the rear brake light switch .................. 6-26
Checking the front and rear brake pads ............. 6-27
Checking the brake fluid level ............................ 6-28
Changing the brake fluid .................................... 6-29
Drive chain slack ................................................ 6-29Lubricating the drive chain ................................ 6-31
Checking and lubricating the cables ................. 6-31
Checking and lubricating the throttle grip and
cable ............................................................... 6-32
Checking and lubricating the brake and
clutch levers .................................................... 6-32
Lubricating the brake pedal ............................... 6-32
Checking and lubricating the sidestand ............ 6-33
Lubricating the rear suspension ........................ 6-33
Checking the front fork ...................................... 6-33
Checking the steering ....................................... 6-34
Checking the wheel bearings ............................ 6-35
Battery ............................................................... 6-35
Replacing the fuses .......................................... 6-37
Replacing a headlight bulb ................................ 6-38
Tail/brake light ................................................... 6-39
Replacing a turn signal light bulb ...................... 6-39
Supporting the motorcycle ................................ 6-39
Front wheel ....................................................... 6-40
Rear wheel ........................................................ 6-41
Troubleshooting ................................................. 6-43
Troubleshooting charts ...................................... 6-44
U5MTE1.book Page 1 Monday, August 6, 2001 6:10 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-9
6Before installing a spark plug, the spark
plug gap should be measured with a
wire thickness gauge and, if necessary,
adjusted to specification.
Clean 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. @
ECA00021
CAUTION:@ Do not use any tools to remove or
install the spark plug cap, otherwise
the ignition coil coupler may get
damaged. The spark plug cap may
be difficult to remove because the
rubber seal on the end of the cap fits
tightly. To remove the spark plug
cap, simply twist it back and forth
while pulling it out; to install it, twist
it back and forth while pushing it in. @
EAU04224
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 a level
surface and hold it in an upright
position.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. _
a. Spark plug gapSpark plug gap:
0.6–0.7 mm
Tightening torque:
Spark plug:
12.5 Nm (1.25 m·kgf)
U5MTE1.book Page 9 Monday, August 6, 2001 6:10 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-12
6 7. Install the new oil filter cartridge
with an oil filter wrench, and then
tighten it to the specified torque
with a torque wrench.
8. Install the engine oil drain bolt, and
then tighten it to the specified
torque.9. 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.
_10. 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. _11. Turn the engine off, and then
check the oil level and correct it if
necessary.
12. Install the cowlings.
1. Torque wrench
Tightening torque:
Oil filter cartridge:
17 Nm (1.7 m·kgf)
Tightening torque:
Engine oil drain bolt:
43 Nm (4.3 m·kgf)Left side
Recommended engine oil:
See page 8-1.
Oil quantity:
Without oil filter cartridge
replacement:
2.5 L
With oil filter cartridge
replacement:
2.7 L
Total amount (dry engine):
3.5 L
U5MTE1.book Page 12 Monday, August 6, 2001 6:10 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-29
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.
EAU03976
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 master cylin-
ders and calipers as well as the brake
hoses replaced at the intervals listed
below or whenever they are damaged
or leaking.

Oil seals: Replace every two
years.


Brake hoses: Replace every four
years.
EAU00744
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 a level
surface and hold it in an upright
position.NOTE:@ When checking and adjusting the drive
chain slack, the motorcycle should be
positioned straight up and there should
be no weight on it. @2. Shift the transmission into the neu-
tral position.
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-31
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
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-33
6
EAU03165
Checking and lubricating the
sidestand The operation of the sidestand should
be checked before each ride, and the
sidestand pivot and metal-to-metal
contact surfaces should be lubricated if
necessary.
EW000113
WARNING
@ If the sidestand does not move up
and down smoothly, have a Yamaha
dealer check or repair it. @
EAU03166
Lubricating the rear
suspension The pivoting points of the rear suspen-
sion must be lubricated at the intervals
specified in the periodic maintenance
and lubrication chart.
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.
Recommended lubricant:
Lithium-soap-based grease
(all-purpose grease)
Recommended lubricant:
Lithium-soap-based grease
(all-purpose grease)
U5MTE1.book Page 33 Monday, August 6, 2001 6:10 PM

10-INDEXAAir filter element, checking ..................... 6-17
Air intake duct ........................................ 6-19
Anti-theft alarm ........................................3-7BBattery ................................................... 6-35
Brake and clutch levers, checking and
lubricating ............................................ 6-32
Brake fluid, changing ............................. 6-29
Brake fluid level, checking...................... 6-28
Brake lever............................................. 3-10
Brake light switch (rear), adjusting ......... 6-26
Brake pads, checking............................. 6-27
Brake pedal............................................ 3-10
Brake pedal, lubricating.......................... 6-32
Brake pedal position, adjusting .............. 6-26CCables, checking and lubricating............ 6-31
Carburetors, adjusting............................ 6-20
Care.........................................................7-1
Clutch lever ..............................................3-9
Clutch lever free play, adjusting ............. 6-25
Conversion table ......................................8-5
Coolant .................................................. 6-13
Changing .......................................... 6-14
Checking .......................................... 6-13
Cowlings and panel, removing and
installing ................................................6-6DDimmer switch .........................................3-8
Drive chain, lubricating ........................... 6-31
Drive chain slack ................................... 6-29
Adjusting .......................................... 6-30
Checking .......................................... 6-29EEngine break-in ....................................... 5-4
Engine oil and oil filter cartridge ............... 6-9
Engine stop switch................................... 3-8FFront and rear suspension settings ........ 3-22
Front fork, adjusting ............................... 3-17
Front fork, checking ............................... 6-33
Fuel ....................................................... 3-11
Fuel consumption, tips for reducing ......... 5-4
Fuel level warning light ............................ 3-2
Fuel tank breather hose ......................... 3-12
Fuel tank cap ......................................... 3-11
Fuses, replacing .................................... 6-37HHandlebar switches ................................. 3-8
Headlight bulb, replacing ....................... 6-38
Helmet holders ...................................... 3-15
High beam indicator light ......................... 3-2
Horn switch ............................................. 3-8IIdentification numbers ............................. 9-1
Idling speed, adjusting ........................... 6-20
Ignition circuit cut-off system.................. 3-24
Indicator and warning lights ..................... 3-2KKey identification number ........................ 9-1
LLight switch ..............................................3-8
Luggage strap holders ...........................3-23MMain switch/steering lock .........................3-1
Model label ..............................................9-2NNeutral indicator light ...............................3-2OOil level/coolant temperature warning
light ........................................................3-3PParking.....................................................5-5
Part locations ...........................................2-1
Pass switch ..............................................3-8
Periodic maintenance and lubrication
chart ......................................................6-3
Pre-operation check list ............................4-1SSafety information ....................................1-1
Seats ....................................................... 3-13
Passenger seat .................................. 3-14
Rider seat........................................... 3-13
Self-diagnosis device ...............................3-7
Shifting .....................................................5-3
Shift pedal ................................................3-9
Shift points (for Switzerland only) .............5-3
Shock absorber assembly, adjusting ......3-19
Sidestand ...............................................3-23
Sidestand, checking and lubricating .......6-33
U5MTE1.book Page 1 Monday, August 6, 2001 6:10 PM