2003 YAMAHA YZF-R6 oil level

PERIODIC MAINTENANCE AND MINOR REPAIR
6-13
6
ECA00133
CAUTION:_

In order to prevent clutch slip-
page (since the engine oil also
lubricates the clutch), do not
mix any chemical additives. Do
not use oils with a diesel speci-
fication of “CD” or oils of a
higher quality than specified. In
addition, do not use oils labeled
“ENERGY CONSERVING II” or
higher.


Make sure that no foreign mate-
rial enters the crankcase.
_13. 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. _14. Turn the engine off, and then
check the oil level and correct it if
necessary.
EAU04945
Coolant The coolant level should be checked
before each ride. In addition, the cool-
ant must be changed at the intervals
specified in the periodic maintenance
and lubrication chart.
To check the coolant level
1. Place the motorcycle on a level
surface and hold it in an upright
position.NOTE:_

The coolant level must be checked
on a cold engine since the level
varies with engine temperature.


Make sure that the motorcycle is
positioned straight up when
checking the coolant level. A slight
tilt to the side can result in a false
reading.
_
U5SLE0.book Page 13 Wednesday, September 11, 2002 11:46 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-31
6
EAU04856
Checking the brake fluid level Insufficient brake fluid may allow air to
enter the brake system, possibly caus-
ing it to become ineffective.
Before riding, check that the brake fluid
is above the minimum level mark and
replenish if necessary. A low brake flu-
id level may indicate worn brake pads
and/or brake system leakage. If the
brake fluid level is low, be sure to check
the brake pads for wear and the brake
system for leakage.Observe these precautions:


When checking the fluid level,
make sure that the top of the brake
fluid reservoir is level.


Use only the recommended quali-
ty brake fluid, otherwise the rubber
seals may deteriorate, causing
leakage and poor braking perfor-
mance.


Refill with the same type of brake
fluid. Mixing fluids may result in a
harmful chemical reaction and
lead to poor braking performance.


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.
1. Minimum level markFront
1. Minimum level mark
Recommended brake fluid: DOT 4Rear
U5SLE0.book Page 31 Wednesday, September 11, 2002 11:46 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-32
6
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.3. Move the rear wheel by pushing
the motorcycle to locate the tight-
est portion of the drive chain, and
then measure the drive chain
slack as shown.
4. If the drive chain slack is incorrect,
adjust it as follows.
a. Drive chain slackDrive chain slack:
35–45 mm
U5SLE0.book Page 32 Wednesday, September 11, 2002 11:46 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-37
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. @
U5SLE0.book Page 37 Wednesday, September 11, 2002 11:46 AM

SPECIFICATIONS
8-4
8
Battery
Model GT9B-4
Voltage, capacity 12 V, 8 Ah
Headlight typeHalogen bulb
Bulb voltage, wattage × quantity
Headlight 12 V, 55 W × 2
Tail/brake light LED
Turn signal light 12 V, 10 W × 4
Auxiliary light 12 V, 5 W × 2
License plate light 12 V, 5 W × 1
Meter lighting LED
Neutral indicator light LED
High beam indicator light LED
Turn signal indicator light LED
Fuel level warning light LED
Oil level warning light LED
Coolant temperature warning
light LED
Engine trouble warning light LED
Shift timing indicator light LED
Immobilizer system
indicator light LEDFuses
Main fuse 40 A
Headlight fuse 20 A
Signaling system fuse 15 A
Radiator fan fuse 15 A
Ignition fuse 15 A
Electronic fuel injection fuse 15 A
Turn signal light, taillight,
license plate light, auxiliary
light and hazard fuse 10 A
Odometer, clock and
immobilizer system fuse
(backup fuse) 10 A
U5SLE0.book Page 4 Wednesday, September 11, 2002 11:46 AM

10-INDEXAAir filter element, checking ..................... 6-19
Air intake duct ........................................ 6-22
Anti-theft alarm ...................................... 3-13
Auxiliary light bulb, replacing .................. 6-43BBattery ................................................... 6-38
Brake and clutch levers, checking and
lubricating ............................................ 6-35
Brake and shift pedals, checking and
lubricating ............................................ 6-35
Brake fluid, changing ............................. 6-32
Brake fluid level, checking...................... 6-31
Brake lever............................................. 3-16
Brake light switch (rear), adjusting ......... 6-29
Brake pads, checking............................. 6-30
Brake pedal............................................ 3-16
Brake pedal position, adjusting .............. 6-29CCables, checking and lubricating............ 6-34
Care.........................................................7-1
Catalytic converter ................................. 3-19
Clutch lever ............................................ 3-15
Clutch lever free play, adjusting ............. 6-27
Conversion table ......................................8-5
Coolant .................................................. 6-13
Changing .......................................... 6-15
Checking .......................................... 6-13
Coolant temperature warning light............3-6
Cowlings and panels, removing and
installing ................................................6-5
DDimmer switch ....................................... 3-13
Drive chain, lubricating .......................... 6-33
Drive chain slack ................................... 6-32
Adjusting .......................................... 6-33
Checking .......................................... 6-32EEngine break-in ....................................... 5-3
Engine idling speed ............................... 6-23
Engine oil and oil filter cartridge ............... 6-9
Engine stop switch................................. 3-14
Engine trouble warning light .................... 3-5FFront fork, adjusting ............................... 3-23
Front fork, checking ............................... 6-37
Fuel ....................................................... 3-17
Fuel consumption, tips for reducing ......... 5-3
Fuel level warning light ............................ 3-4
Fuel tank breather hose ......................... 3-18
Fuel tank cap ......................................... 3-17
Fuses, replacing .................................... 6-40HHandlebar switches ............................... 3-13
Hazard switch ........................................ 3-14
Headlight bulb, replacing ....................... 6-41
Helmet holders ...................................... 3-21
High beam indicator light ......................... 3-5
Horn switch ........................................... 3-14
IIdentification numbers ..............................9-1
Ignition circuit cut-off system ..................3-28
Immobilizer system..................................3-1
Immobilizer system indicator light.............3-6
Indicator and warning lights......................3-4KKey identification number .........................9-1LLicense plate light bulb, replacing...........6-45
Luggage strap holders ...........................3-27MMain switch/steering lock .........................3-2
Model label ..............................................9-2
Multi-function display................................3-8NNeutral indicator light ...............................3-5OOil level warning light ...............................3-5PParking.....................................................5-4
Part locations ...........................................2-1
Pass switch ............................................3-13
Periodic maintenance and
lubrication chart .....................................6-2
Pre-operation check list ............................4-1
U5SLE0.book Page 1 Wednesday, September 11, 2002 11:46 AM