2008 YAMAHA YZF-R6 coolant level

PERIODIC MAINTENANCE AND MINOR REPAIR
6-16
6 3. If the coolant is at or below the
minimum level mark, remove pan-
el B. (See page 6-7.)
4. Remove the reservoir cap, add
coolant to the maximum level
mark, and then install the reservoir
cap.
CAUTION:
ECA10471


If coolant is not available, use
distilled water or soft tap water
instead. Do not use hard water
or salt water since it is harmful
to the engine.


If water has been used instead
of coolant, replace it with cool-
ant as soon as possible, other-
wise the cooling system will not
be protected against frost and
corrosion.


If water has been added to the
coolant, have a Yamaha dealer
check the antifreeze content of
the coolant as soon as possible,
otherwise the effectiveness ofthe coolant will be reduced.WARNING
EWA10380
Never attempt to remove the radiatorcap when the engine is hot.
5. Install the panel.NOTE:

The radiator fans are automatically
switched on or off according to the
coolant temperature in the radia-
tor.


If the engine overheats, see page6-44 for further instructions.
EAU39002
To change the coolant
1. Place the vehicle on a level sur-
face and let the engine cool if nec-
essary.
2. Remove cowlings B and C. (See
page 6-7.)
1. Coolant reservoir
2. Maximum level mark
3. Minimum level mark
1. Coolant reservoir cap
Coolant reservoir capacity (up to the
maximum level mark):
0.25 L (0.26 US qt) (0.22 Imp.qt)
U13SE0E0.book Page 16 Monday, August 27, 2007 4:53 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-18
6 13. Pour the recommended coolant
into the reservoir to the maximum
level mark, and then install the
coolant reservoir cap.
14. Pour the recommended coolant
into the radiator until it is full.
CAUTION:
ECA10471


If coolant is not available, use
distilled water or soft tap water
instead. Do not use hard water
or salt water since it is harmful
to the engine.


If water has been used instead
of coolant, replace it with cool-
ant as soon as possible, other-
wise the cooling system will not
be protected against frost and
corrosion.


If water has been added to the
coolant, have a Yamaha dealer
check the antifreeze content of
the coolant as soon as possible,
otherwise the effectiveness ofthe coolant will be reduced.
15. Install the radiator cap, start the
engine, let it idle for several min-
utes, and then turn it off.
16. Remove the radiator cap to check
the coolant level in the radiator. If
necessary, add sufficient coolant
until it reaches the top of the radia-
tor, and then install the radiator
cap.17. Start the engine, and then check
the vehicle for coolant leakage. If
coolant is leaking, have a Yamaha
dealer check the cooling system.
18. Install the cowlings.
Tightening torque:
Coolant drain bolt:
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Antifreeze/water mixture ratio:
1:1
Recommended antifreeze:
High-quality ethylene glycol anti-
freeze containing corrosion inhibitors
for aluminum engines
Coolant quantity:
Radiator capacity (including all
routes):
2.30 L (2.43 US qt) (2.02 Imp.qt)
Coolant reservoir capacity (up to the
maximum level mark):
0.25 L (0.26 US qt) (0.22 Imp.qt)
U13SE0E0.book Page 18 Monday, August 27, 2007 4:53 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-45
6Engine overheating
WARNING
EWAT1040


Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be
blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.


Place a thick rag, like a towel, over the radiator cap, and then slowly rotate the cap counterclockwise to the de-
tent to allow any residual pressure to escape. When the hissing sound has stopped, press down on the capwhile turning it counterclockwise, and then remove the cap.
NOTE:If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended coolantas soon as possible.
Wait until the
engine has cooled.
Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer checkand repair the cooling system.Add coolant. (See NOTE.)
Start the engine. If the engine overheats again,
have a
Yamaha dealer check
and repair the cooling system.
There is
leakage.
There is
no leakage.
U13SE0E0.book Page 45 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