spark plugs YAMAHA YZF-R6 2015 Owners Manual

TABLE OF CONTENTSSAFETY INFORMATION.................. 1-1
DESCRIPTION .................................. 2-1
Left view ......................................... 2-1
Right view ....................................... 2-2
Controls and instruments ............... 2-3
INSTRUMENT AND CONTROL
FUNCTIONS ...................................... 3-1
Immobilizer system......................... 3-1
Main switch/steering lock............... 3-2
Indicator lights and warning lights............................................ 3-4
Multi-function meter unit ................ 3-8
Handlebar switches ...................... 3-14
Clutch lever .................................. 3-15
Shift pedal .................................... 3-15
Brake lever.................................... 3-16
Brake pedal .................................. 3-16
Fuel tank cap ................................ 3-17
Fuel ............................................... 3-17
Fuel tank breather hose and overflow hose ............................ 3-19
Catalytic converters...................... 3-19
Seats ............................................ 3-20
Helmet holding cable.................... 3-21
Rear view mirrors.......................... 3-22
Adjusting the front fork ................. 3-22
Adjusting the shock absorber assembly ................................... 3-24
Luggage strap holders ................. 3-27 EXUP system ................................ 3-27
Sidestand ...................................... 3-28
Ignition circuit cut-off system ....... 3-28
FOR YOUR SAFETY –
PRE-OPERATION CHECKS ............. 4-1
OPERATION AND IMPORTANT
RIDING POINTS ................................ 5-1
Starting the engine .......................... 5-1
Shifting ............................................ 5-2
Tips for reducing fuel consumption ................................ 5-3
Engine break-in ............................... 5-3
Parking ............................................ 5-4
PERIODIC MAINTENANCE AND
ADJUSTMENT ................................... 6-1
Owner’s tool kit ............................... 6-2
Periodic maintenance chart for the emission control system .............. 6-3
General maintenance and lubrication chart ........................... 6-4
Removing and installing cowlings and panels ................................... 6-8
Checking the spark plugs ............. 6-12
Engine oil and oil filter cartridge.... 6-13
Coolant.......................................... 6-16
Air filter element ............................ 6-19
Checking the engine idling
speed ......................................... 6-19 Checking the throttle grip free
play ............................................ 6-20
Valve clearance............................. 6-20
Tires .............................................. 6-20
Cast wheels .................................. 6-23
Adjusting the clutch lever free play ............................................ 6-23
Checking the brake lever free
play ............................................ 6-24
Brake light switches ..................... 6-24
Checking the front and rear brake pads .......................................... 6-25
Checking the brake fluid level ...... 6-25
Changing the brake fluid .............. 6-27
Drive chain slack........................... 6-27
Cleaning and lubricating the drive chain.......................................... 6-29
Checking and lubricating the cables ........................................ 6-29
Checking and lubricating the
throttle grip and cable ............... 6-30
Checking and lubricating the brake and shift pedals............... 6-30
Checking and lubricating the brake and clutch levers ............. 6-31
Checking and lubricating the
sidestand................................... 6-31
Lubricating the swingarm pivots......................................... 6-32
Checking the front fork ................. 6-32
Checking the steering................... 6-33U2CXE1E0.book Page 1 Friday, July 25, 2014 11:05 AM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-12
6
To install a panel
Place the panel in the original position,
and then install the bolts.
EAU19653
Checkin
g the spark plu gsThe spark plugs are important engine
components, which should be
checked periodically, preferably by a
Yamaha dealer. Since heat and depos-
its will cause any spark plug to slowly
erode, they should be removed and
checked in accordance with the peri-
odic maintenance and lubrication
chart. In addition, the condition of the
spark plugs can reveal the condition of
the engine.
The porcelain insulator around the
center electrode of each spark plug
should be a medium-to-light tan (the
ideal color when the vehicle is ridden
normally), and all spark plugs installed
in the engine should have the same
color. If any spark plug shows a dis-
tinctly different color, the engine could
be operating improperly. Do not at-
tempt to diagnose such problems
yourself. Instead, have a Yamaha deal-
er check the vehicle.
If a spark plug shows signs of elec-
trode erosion and excessive carbon or
other deposits, it should be replaced. Before 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.
1. Panel B
2. Bolt
Specified
spark plu g:
NGK/CR10EK
1. Spark plug gap
Spark plu g g ap:
0.6–0.7 mm (0.024–0.028 in)
Ti ghtenin g torque:
Spark plug: 13 Nm (1.3 m·kgf, 9.4 ft·lbf)
1
1
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-45
6
EAU42505
Troubleshootin g chartsStartin g pro blems or poor en gine performance
Check the fuel level in
the fuel tank.1. Fuel
There is enough fuel.
There is no fuel.
Check the battery.
Supply fuel.
The engine does not start.
Check the battery.
Remove the spark plugs
and check the electrodes.3. Ignition
Wipe off with a dry cloth and correct the
spark plug gaps, or replace the spark plugs.
Have a Yamaha dealer check the vehicle.
Operate the electric starter.4. Compression
There is compression.
There is no compression.
The engine does not start.
Have a Yamaha dealer check the vehicle.Have a Yamaha dealer check the vehicle.
The engine does not start.
Check the compression.
Operate the electric starter.2. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The engine does not start.
Check the ignition.
The battery is good.Check the battery lead connections,
and have a Yamaha dealer charge
the battery if necessary.
DryWet
Operate the electric starter.
U2CXE1E0.book Page 45 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]
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MOTORCYCLE CARE AND STORAGE
7-5
7e. Remove the spark plug caps
from the spark plugs, and then
install the spark plugs and the
spark plug caps.
4. Lubricate all control cables and the pivoting points of all levers and
pedals as well as of the side-
stand/centerstand.
5. Check and, if necessary, correct the tire air pressure, and then lift
the motorcycle so that both of its
wheels are off the ground. Alterna-
tively, turn the wheels a little every
month in order to prevent the tires
from becoming degraded in one
spot.
6. Cover the muffler outlet with a plastic bag to prevent moisture
from entering it.
7. Remove the battery and fully charge it. Store it in a cool, dry
place and charge it once a month.
Do not store the battery in an ex-
cessively cold or warm place [less
than 0 °C (30 °F) or more than 30
°C (90 °F)]. For more information
on storing the battery, see page
6-34.
TIPMake any necessary repairs before
storing the motorcycle.
U2CXE1E0.book Page 5 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