2015 YAMAHA YZF-R6 engine

PERIODIC MAINTENANCE AND ADJUSTMENT
6-46
6
En
gine overheatin g
WARNING
EWAT1041
Do not remove the ra diator cap when the en gine an d ra diator are hot. Scal din g hot flui d an d steam may be
b lown out un der pressure, which coul d cause serious injury. Be sure to wait until the en gine has coole d.
 Place a thick ra g, like a towel, over the ra diator cap, an d then slowly rotate the cap counterclockwise to the
d etent to allow any resi dual pressure to escape. When the hissin g soun d has stoppe d, press down on the cap
while turnin g it counterclockwise, an d then remove the cap.TIPIf coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended cool-
ant as 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 TIP.)
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.
U2CXE1E0.book Page 46 Friday, July 25, 2014 11:05 AM

MOTORCYCLE CARE AND STORAGE
7-1
7
EAU37834
Matte color cautionNOTICE
ECA15193
Some models are equipped with
matte colore d finishe d parts. Be
sure to consult a Yamaha d ealer for
a d vice on what prod ucts to use be-
fore cleanin g the vehicle. Usin g a
b rush, harsh chemical prod ucts or
cleanin g compoun ds when cleanin g
these parts will scratch or damag e
their surface. Wax also shoul d not
b e applied to any matte colore d fin-
ishe d parts.
EAU54721
CareWhile the open design of a motorcycle
reveals the attractiveness of the tech-
nology, it also makes it more vulnera-
ble. Rust and corrosion can develop
even if high-quality components are
used. A rusty exhaust pipe may go un-
noticed on a car, however, it detracts
from the overall appearance of a mo-
torcycle. Frequent and proper care
does not only comply with the terms of
the warranty, but it will also keep your
motorcycle looking good, extend its
life and optimize its performance.
Before cleanin g
1. Cover the muffler outlet with a plastic bag after the engine has
cooled down.
2. Make sure that all caps and cov- ers as well as all electrical cou-
plers and connectors, including
the spark plug caps, are tightly in-
stalled.
3. Remove extremely stubborn dirt, like oil burnt onto the crankcase,
with a degreasing agent and a
brush, but never apply such prod- ucts onto seals, gaskets, sprock-
ets, the drive chain and wheel
axles. Always rinse the dirt and
degreaser off with water.
Cleanin g
NOTICE
ECA11143
Avoi d usin g stron g aci dic wheel
cleaners, especially on spoke d
wheels. If such pro ducts are
use d on har d-to-remove dirt, do
not leave the cleaner on the af-
fected area any lon ger than in-
structe d. Also, thorou ghly rinse
the area off with water, imme di-
ately dry it, an d then apply a cor-
rosion protection spray.
 Improper cleanin g can d amage
plastic parts (such as cowlin gs,
panels, win dshiel ds, hea dlig ht
lenses, meter lenses, etc.) an d
the mufflers. Use only a soft,
clean cloth or spon ge with wa-
ter to clean plastic. However, if
the plastic parts cannot b e thor-
ou ghly cleaned with water, di-
lute d mil d d eter gent with water
may be used . Be sure to rinse
U2CXE1E0.book Page 1 Friday, July 25, 2014 11:05 AM

MOTORCYCLE CARE AND STORAGE7-2
7
off any
deter gent resi due usin g
plenty of water, as it is harmful
to plastic parts.
 Do not use any harsh chemical
prod ucts on plastic parts or the
muffler. Be sure to avoi d usin g
cloths or spon ges which have
b een in contact with stron g or
a b rasive cleanin g prod ucts, sol-
vent or thinner, fuel ( gasoline),
rust removers or inhi bitors,
b rake flui d, antifreeze or elec-
trolyte.
 Do not use hi gh-pressure wash-
ers or steam-jet cleaners since
they cause water seepag e and
d eterioration in the followin g ar-
eas: seals (of wheel an d swin g-
arm bearin gs, fork an d b rakes),
stora ge compartments, electric
components (couplers, connec-
tors, instruments, switches an d
li g hts), breather hoses an d
vents.
 For motorcycles equippe d with
a win dshiel d: Do not use stron g
cleaners or har d spon ges as
they will cause dullin g or
sc

ratchin g. Some cleanin gcompoun
ds for plastic may
leave scratches on the win d-
shiel d. Test the pro duct on a
small hi dden part of the win d-
shiel d to make sure that it does
not leave any marks. If the win d-
shiel d is scratche d, use a quality
plastic polishin g compoun d af-
ter washing .
After normal useRemove dirt with warm water, a mild
detergent, and a soft, clean sponge,
and then rinse thoroughly with clean
water. Use a toothbrush or bottlebrush
for hard-to-reach areas. Stubborn dirt
and insects will come off more easily if
the area is covered with a wet cloth for
a few minutes before cleaning.
After riding in the rain, near the sea oron salt-sprayed roadsSince sea salt or salt sprayed on roads
during winter are extremely corrosive
in combination with water, carry out
the following steps after each ride in
the rain, near the sea or on salt-
sprayed roads.
TIPSalt sprayed on roads in the winter
may remain well into spring.1. Clean the motorcycle with cold
water and a mild detergent, after
the engine has cooled down.
NOTICE: Do not use warm wa-
ter since it increases the corro-
sive action of the salt.
[ECA10792]
2. After drying the motorcycle, apply a corrosion protection spray on all
metal, including chrome- and
nickel-plated, surfaces (except the
titanium muffler) to prevent corro-
sion.
Cleaning the windshieldAvoid using any alkaline or strong acid
cleaner, gasoline, brake fluid, or any
other solvent. Clean the windshield
with a cloth or sponge dampened with
a neutral detergent, and after cleaning,
thoroughly wash it off with water. For
additional cleaning, use Yamaha Wind-
shield Cleaner or other quality cleaner.
Some cleaning compounds for plastics
may leave scratches on surfaces of the
U2CXE1E0.book Page 2 Friday, July 25, 2014 11:05 AM

MOTORCYCLE CARE AND STORAGE7-4
7
TIPConsult a Yamaha dealer for ad-
vice on what products to use.
 Washing, rainy weather or humid
climates can cause the headlight
lens to fog. Turning the headlight
on for a short period of time will
help remove the moisture from the
lens.
EAU26183
Stora geShort-term
Always store your motorcycle in a cool,
dry place and, if necessary, protect it
against dust with a porous cover. Be
sure the engine and the exhaust sys-
tem are cool before covering the mo-
torcycle.NOTICE
ECA10811
 Storin g the motorcycle in a
poorly ventilated room or cover-
in g it with a tarp, while it is still
wet, will allow water an d humi d-
ity to seep in an d cause rust.
 To prevent corrosion, avoi d
d amp cellars, sta bles ( because
of the presence of ammonia)
an d areas where stron g chemi-
cals are store d.Lon g-term
Before storing your motorcycle for sev-
eral months: 1. Follow all the instructions in the “Care” section of this chapter. 2. Fill up the fuel tank and add fuel
stabilizer (if available) to prevent
the fuel tank from rusting and the
fuel from deteriorating.
3. Perform the following steps to protect the cylinders, piston rings,
etc. from corrosion.a. Remove the spark plug caps and spark plugs.
b. Pour a teaspoonful of engine oil into each spark plug bore.
c. Install the spark plug caps onto the spark plugs, and then
place the spark plugs on the
cylinder head so that the elec-
trodes are grounded. (This will
limit sparking during the next
step.)
d. Turn the engine over several times with the starter. (This will
coat the cylinder walls with oil.)
WARNING! To prevent dam-
a g e or injury from sparkin g,
make sure to groun d the
spark plu g electro des while
turnin g the en gine over.
[EWA10952]
U2CXE1E0.book Page 4 Friday, July 25, 2014 11:05 AM

SPECIFICATIONS
8-1
8
Dimensions:Overall length:2040 mm (80.3 in)
Overall width:
705 mm (27.8 in)
Overall height: 1095 mm (43.1 in)
Seat height: 850 mm (33.5 in)
Wheelbase:
1375 mm (54.1 in)
Ground clearance: 130 mm (5.12 in)
Minimum turning radius: 3600 mm (141.7 in)Wei ght:Curb weight:
189 kg (417 lb)Engine:Engine type:
Liquid cooled 4-stroke, DOHC
Cylinder arrangement: Inline 4-cylinder
Displacement: 599 cm³
Bore × stroke:
67.0 × 42.5 mm (2.64 × 1.67 in)
Compression ratio: 13.1 : 1
Starting system: Electric starter
Lubrication system:
Wet sump
Engine oil:Recommended brand:
YAMALUBE
Type:
SAE 10W-40, 10W-50, 15W-40, 20W-40 or
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)Coolant quantity:Coolant reservoir (up to the maximum level
mark):0.25 L (0.26 US qt, 0.22 Imp.qt)
Radiator (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 (Gasohol (E10)
acceptable)
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:ID mark:13S1 00Spark plu g(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 ratio:2.073 (85/41)
Final drive:
Chain
Secondary reduction ratio: 2.813 (45/16)
Transmission type: Constant mesh 6-speed
Operation:
Left foot operation
Gear ratio: 1st:
2.583 (31/12)
–20 –10 0 1020 30 40 50 C
10 30 50 70 90 110
0 130 F
SAE 20W-50SAE 20W-40SAE 15W-40SAE 10W-40SAE 10W-50
U2CXE1E0.book Page 1 Friday, July 25, 2014 11:05 AM

SPECIFICATIONS
8-3
8
Charging system:AC magnetoBattery:Model:
YTZ10S
Voltage, capacity: 12 V, 8.6 AhHea dlig ht:Bulb type:
Halogen bulbBul b volta ge, watta ge × 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: LED
Turn 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 motor fuse:
15.0 A × 2
Fuel injection system fuse: 15.0 A
Backup fuse: 7.5 A
Electronic throttle valve fuse:
7.5 A
U2CXE1E0.book Page 3 Friday, July 25, 2014 11:05 AM

CONSUMER INFORMATION
9-1
9
EAU53562
Id entification num bersRecord the vehicle identification num-
ber, engine serial number, and the
model label information in the spaces
provided below. These identification
numbers are needed when registering
the vehicle with the authorities in your
area and when ordering spare parts
from a Yamaha dealer.
VEHICLE IDENTIFICATION NUMBER:
ENGINE SERIAL NUMBER:
MODEL LABEL INFORMATION:
EAU26401
Vehicle i dentification num ber
The vehicle identification number is
stamped into the steering head pipe.
Record this number in the space pro-
vided.TIPThe vehicle identification number is
used to identify your motorcycle and
may be used to register your motorcy-
cle with the licensing authority in your
area.
EAU26441
En gine serial num ber
The engine serial number is stamped
into the crankcase.
EAU26521
Mo del la bel
1. Vehicle identification number
1. Engine serial number
1. Model label
1
U2CXE1E0.book Page 1 Friday, July 25, 2014 11:05 AM

10-1
10
INDEXAAir filter element .................................... 6-19
Auxiliary light......................................... 6-37BBattery .................................................. 6-34
Brake and clutch levers, checking and lubricating .................... 6-31
Brake and shift pedals, checking and lubricating .................... 6-30
Brake fluid, changing ............................ 6-27
Brake fluid level, checking .................... 6-25
Brake lever ............................................ 3-16
Brake lever free play, checking............. 6-24
Brake light switches.............................. 6-24
Brake pedal........................................... 3-16CCables, checking and lubricating ......... 6-29
Care ........................................................ 7-1
Catalytic converters .............................. 3-19
Clutch lever ........................................... 3-15
Clutch lever free play, adjusting ........... 6-23
Coolant ................................................. 6-16
Coolant temperature warning light ......... 3-5
Cowlings and panels, removing and installing......................... 6-8DDimmer switch ...................................... 3-14
Drive chain, cleaning and lubricating .... 6-29
Drive chain slack................................... 6-27EEngine break-in....................................... 5-3
Engine idling speed, checking .............. 6-19
Engine oil and oil filter cartridge ........... 6-13
Engine serial number .............................. 9-1 Engine stop switch ............................... 3-14
Engine trouble warning light ................... 3-7
EXUP system........................................ 3-27
FFront and rear brake pads, checking ... 6-25
Front fork, adjusting ............................. 3-22
Front fork, checking ............................. 6-32
Fuel ....................................................... 3-17
Fuel consumption, tips for reducing ...... 5-3
Fuel level warning light ........................... 3-4
Fuel tank breather hose and overflow
hose ................................................... 3-19
Fuel tank cap ........................................ 3-17
Fuses, replacing ................................... 6-35HHandlebar switches .............................. 3-14
Hazard switch....................................... 3-15
Headlight bulb, replacing ..................... 6-36
Helmet holding cable ........................... 3-21
High beam indicator light ....................... 3-4
Horn switch .......................................... 3-14IIdentification numbers ............................ 9-1
Ignition circuit cut-off system ............... 3-28
Immobilizer system ................................ 3-1
Immobilizer system indicator light .......... 3-7
Indicator lights and warning lights ......... 3-4LLicense plate light bulb, replacing........ 6-39
Luggage strap holders ......................... 3-27MMain switch/steering lock....................... 3-2
Maintenance and lubrication, periodic ... 6-4 Maintenance, emission control
system ..................................................6-3
Matte color, caution ................................7-1
Model label .............................................9-1
Multi-function meter unit .........................3-8
NNeutral indicator light ..............................3-4OOil level warning light ..............................3-4PParking ....................................................5-4
Part locations ..........................................2-1
Pass switch ...........................................3-14RRear view mirrors ..................................3-22SSafety information ...................................1-1
Seats .....................................................3-20
Shifting ....................................................5-2
Shift pedal .............................................3-15
Shift timing indicator light .......................3-7
Shock absorber assembly, adjusting ....3-24
Sidestand ..............................................3-28
Sidestand, checking and lubricating.....6-31
Spark plugs, checking ..........................6-12
Specifications .........................................8-1
Starting the engine ..................................5-1
Start switch ...........................................3-14
Steering, checking ................................6-33
Storage ...................................................7-4
Supporting the motorcycle ...................6-39
Swingarm pivots, lubricating ................6-32TTail/brake light ......................................6-38
U2CXE1E0.book Page 1 Friday, July 25, 2014 11:05 AM