2008 YAMAHA YZF-R6 oil level

PERIODIC MAINTENANCE AND MINOR REPAIR
6-25
6
EAU22580
Checking the brake fluid level Front brake
Rear brake
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 fluid
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 quality
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 grad-
ually go down. However, if the
brake fluid level goes down sud-
denly, have a Yamaha dealer
check the cause.
1. Minimum level mark
1. Minimum level mark
Recommended brake fluid:
DOT 4
U13SE0E0.book Page 25 Monday, August 27, 2007 4:53 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-31
6
EAU23271
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
WARNING
EWA10750
Securely support the vehicle so thatthere 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 vehicle on a level sur-
face and hold it in an upright posi-
tion.
2. While applying the front brake,
push down hard on the handlebars
several times to check if the front
fork compresses and rebounds
smoothly.
CAUTION:
ECA10590
If any damage is found or the front
fork does not operate smoothly,
have a Yamaha dealer check or re-pair it.
EAU23280
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.
WARNING
EWA10750
Securely support the vehicle so thatthere is no danger of it falling over.
2. Hold the lower ends of the front
fork legs and try to move them for-
ward and backward. If any free
play can be felt, have a Yamaha
dealer check or repair the steering.
U13SE0E0.book Page 31 Monday, August 27, 2007 4:53 PM

SPECIFICATIONS
8-1
8
Dimensions:Overall length:
2040 mm (80.3 in)
Overall width:
705 mm (27.8 in)
Overall height:
1100 mm (43.3 in)
Seat height:
850 mm (33.5 in)
Wheelbase:
1380 mm (54.3 in)
Ground clearance:
130 mm (5.12 in)
Minimum turning radius:
3600 mm (141.7 in)Weight:With oil and fuel:
185.0 kg (408 lb)Engine:Engine type:
Liquid cooled 4-stroke, DOHC
Cylinder arrangement:
Forward-inclined parallel 4-cylinder
Displacement:
599.0 cm³
Bore × stroke:
67.0 × 42.5 mm (2.64 × 1.67 in)
Compression ratio:
13.10 :1
Starting system:
Electric starter
Lubrication system:
Wet sump
Engine oil:Type:
SAE 10W-30, SAE 10W-40, SAE 15W-40,
SAE 20W-40 or SAE 20W-50
Recommended engine oil grade:
API service SG type or higher, JASO
standard MA
Engine oil quantity:
Without oil filter cartridge replacement:
2.40 L (2.54 US qt) (2.11 Imp.qt)
With oil filter cartridge replacement:
2.60 L (2.75 US qt) (2.29 Imp.qt)Cooling system:Coolant reservoir capacity (up to the
maximum level mark):
0.25 L (0.26 US qt) (0.22 Imp.qt)
Radiator capacity (including all routes):
2.30 L (2.43 US qt) (2.02 Imp.qt)Air filter:Air filter element:
Oil-coated paper element
Fuel:Recommended fuel:
Premium unleaded gasoline only
Fuel tank capacity:
17.3 L (4.57 US gal) (3.81 Imp.gal)
Fuel reserve amount:
3.5 L (0.92 US gal) (0.77 Imp.gal)Fuel injection:Throttle body:
Manufacturer:
MIKUNI
Type/quantity:
41EIDW/1Spark plug (s):Manufacturer/model:
NGK/CR10EK
Spark plug gap:
0.6–0.7 mm (0.024–0.028 in)Clutch:Clutch type:
Wet, multiple-discTransmission:Primary reduction system:
Spur gear
Primary reduction ratio:
85/41 (2.073)
Secondary reduction system:
Chain drive
Secondary reduction ratio:
45/16 (2.813)
Transmission type:
Constant mesh 6-speed
Operation:
Left foot operation
-20 -10 0
10 20 30
40
50 ˚C
SAE 10W-30
SAE 15W-40SAE 20W-40SAE 20W-50
SAE 10W-40SAE 10W-50
U13SE0E0.book Page 1 Monday, August 27, 2007 4:53 PM

SPECIFICATIONS
8-3
8
Electrical system:Ignition system:
Transistorized coil ignition (digital)
Charging system:
AC magnetoBattery:Model:
YTZ10S
Voltage, capacity:
12 V, 8.6 AhHeadlight:Bulb type:
Halogen bulbBulb voltage, wattage × quantity:Headlight:
12 V, 55.0 W × 2
Tail/brake light:
LED
Front turn signal light:
12 V, 10.0 W × 2
Rear turn signal light:
12 V, 10.0 W × 2
Auxiliary light:
LED
License plate light:
12 V, 5.0 W × 1
Meter lighting:
LED
Neutral indicator light:
LED
High beam indicator light:
LED
Oil level warning light:
LEDTurn signal indicator light:
LED
Fuel level warning light:
LED
Coolant temperature warning light:
LED
Engine trouble warning light:
LED
Immobilizer system indicator light:
LED
Shift timing indicator light:
LED
Fuses:Main fuse:
50.0 A
Headlight fuse:
15.0 A
Taillight fuse:
7.5 A
Signaling system fuse:
10.0 A
Ignition fuse:
15.0 A
Radiator fan fuse:
15.0 A × 2
Fuel injection system fuse:
15.0 A
Backup fuse:
7.5 A
Electronic throttle valve fuse:
7.5 A
U13SE0E0.book Page 3 Monday, August 27, 2007 4:53 PM

INDEXAAir filter element .................................... 6-19
Anti-theft alarm (optional)...................... 3-13
Auxiliary light ......................................... 6-38BBattery................................................... 6-32
Brake and clutch levers,
checking and lubricating ..................... 6-29
Brake and shift pedals,
checking and lubricating ..................... 6-29
Brake fluid, changing ............................ 6-26
Brake fluid level, checking .................... 6-25
Brake lever ............................................ 3-16
Brake pedal ........................................... 3-16CCables, checking and lubricating .......... 6-28
Care ........................................................ 7-1
Catalytic converters .............................. 3-19
Clutch lever ........................................... 3-15
Clutch lever free play, adjusting ............ 6-23
Coolant.................................................. 6-15
Coolant temperature warning light .......... 3-5
Cowlings and panels,
removing and installing ......................... 6-7DDimmer switch ...................................... 3-14
Drive chain, cleaning and lubricating .... 6-27
Drive chain slack ................................... 6-26EEngine break-in ....................................... 5-3
Engine idling speed, checking .............. 6-19
Engine oil and oil filter cartridge ............ 6-12
Engine stop switch ................................ 3-14
Engine trouble warning light.................... 3-7EXUP system ....................................... 3-26
FFront and rear brake pads, checking .... 6-24
Front fork, adjusting .............................. 3-21
Front fork, checking .............................. 6-31
Fuel....................................................... 3-17
Fuel consumption, tips for reducing........ 5-3
Fuel level warning light ........................... 3-4
Fuel tank breather/overflow hose ......... 3-18
Fuel tank cap ........................................ 3-17
Fuses, replacing ................................... 6-34HHandlebar switches .............................. 3-14
Hazard switch ....................................... 3-15
Headlight bulb, replacing ...................... 6-35
Helmet holding cable ............................ 3-20
High beam indicator light ........................ 3-4
Horn switch ........................................... 3-14IIdentification numbers ............................ 9-1
Ignition circuit cut-off system ................ 3-27
Immobilizer system ................................. 3-1
Immobilizer system indicator light........... 3-7
Indicator and warning lights .................... 3-4KKey identification number ....................... 9-1LLicense plate light bulb, replacing ........ 6-37
Luggage strap holders .......................... 3-26MMain switch/steering lock........................ 3-2
Matte color, caution ................................ 7-1
Model label ............................................. 9-2
Multi-function meter unit ......................... 3-7
NNeutral indicator light .............................. 3-4OOil level warning light .............................. 3-4PParking .................................................... 5-4
Part locations .......................................... 2-1
Pass switch ........................................... 3-14
Periodic maintenance and
lubrication chart .................................... 6-2
Pre-operation check list........................... 4-2RRear brake light switch, adjusting ......... 6-24SSafety information ................................... 1-1
Seats ..................................................... 3-19
Shifting .................................................... 5-2
Shift pedal ............................................. 3-15
Shift timing indicator light ........................ 3-7
Shock absorber assembly, adjusting .... 3-23
Sidestand .............................................. 3-27
Sidestand, checking and lubricating...... 6-30
Spark plugs, checking ........................... 6-11
Specifications .......................................... 8-1
Starting the engine .................................. 5-1
Start switch............................................ 3-14
Steering, checking................................. 6-31
Storage.................................................... 7-4
Supporting the motorcycle .................... 6-38
Swingarm pivots, lubricating ................. 6-30TTail/brake light ....................................... 6-36
Throttle cable free play, checking ......... 6-19
U13SE0E0.book Page 1 Monday, August 27, 2007 4:53 PM