2016 YAMAHA YZF-R6 light

Periodic maintenance an d a djustment
6-10
6
3. Remove the forward-most projec-
tion from the slot, slide the cowling
forward, and then remove the re-
maining projections from the slots
as shown.
4. Disconnect the turn signal light lead coupler.
To install a cowling
1. Connect the turn signal light leadcoupler.
2. Fit the projections into the slots, slide the cowling rearward, and
then fit the forward-most projec-
tion into the slot.
3. Fit the projection on cowling A intothe hole in cowling B as shown.
1. Cowling A
2. Turn signal light lead coupler
1. Cowling B
2. Turn signal light lead coupler
1. Cowling A
2. Turn signal light lead coupler
1. Cowling B
2. Turn signal light lead coupler
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Periodic maintenance an d a djustment
6-12
6
To install a panel
Place the panel in the original position,
and then install the bolts.
EAU19653
Checkin
g the spark plug sThe 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 an d a djustment
6-13
6
TIPIf a torque wrench is not available
when installing a spark plug, a good
estimate of the correct torque is 1/4–
1/2 turn past finger tight. However, the
spark plug should be tightened to the
specified torque as soon as possible.NOTICE
ECA10841
Do not use any tools to remove or in-
stall the spark plu g cap, otherwise
the i gnition coil coupler may get
d amag ed . The spark plu g cap may
b e difficult to remove b ecause the
ru bber seal on the en d of the cap fits
ti g htly. To remove the spark plu g
cap, simply twist it b ack and forth
while pullin g it out; to install it, twist
it back an d forth while pushin g it in.
EAU3899E
En gine oil an d oil filter car-
tri dgeThe engine oil level should be checked
before each ride. In addition, the oil
must be changed and the oil filter car-
tridge replaced at the intervals speci-
fied in the periodic maintenance and
lubrication chart.
To check the en gine oil level
1. Place the vehicle on a level surfa- ce and hold it in an upright posi-
tion. A slight tilt to the side can
result in a false reading.
2. Start the engine, warm it up for several minutes, and then turn it
off.
3. Wait a few minutes until the oil set- tles.
4. Remove the engine oil dipstick and wipe it clean, insert it back
into the hole (without screwing it
in), and then remove it again to
check the oil level.TIPThe engine oil should be between the
minimum and maximum level marks.
5. If the engine oil is at or below theminimum level mark, remove the
engine oil filler cap, and then add
sufficient oil of the recommended
type to raise it to the correct level.1. Engine oil dipstick
2. Maximum level mark
3. Minimum level mark
1. Engine oil filler cap
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Periodic maintenance an d a djustment
6-16
6
14. Refill with the specified amount of
the recommended engine oil, and
then install and tighten the oil filler
cap.
TIPBe sure to wipe off spilled oil on any
parts after the engine and exhaust sys-
tem have cooled down.NOTICE
ECA11621
In or der to prevent clutch slip-
pa ge (since the en gine oil also
lu bricates the clutch), do not
mix any chemical additives. Do
not use oils with a diesel speci-
fication of “CD” or oils of a hi gh-
er quality than specifie d. In
a ddition, do not use oils lab eled
“ENERGY CONSERVING II” or
hi gher. 
Make sure that no forei gn mate-
rial enters the crankcase.
15. 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.TIPAfter the engine is started, the engine
oil level warning light should go off if
the oil level is sufficient.NOTICE
ECA10402
If the oil level warnin g li ght flickers
or remains on even if the oil level is
correct, imme diately turn the en gine
off an d have a Yamaha dealer check
the vehicle.16. Turn the engine off, and then check the oil level and correct it if
necessary.
17. Install the cowling.
EAU20071
CoolantThe 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.
EAU3908A
To check the coolant level 1. Place the vehicle on a level surfa- ce and hold it in an upright posi-
tion.TIPThe coolant level must be
checked on a cold engine since
the level varies with engine tem-
perature.
 Make sure that the vehicle is posi-
tioned straight up when checking
the coolant level. A slight tilt to the
side can result in a false reading.2. Check the coolant level in the
coolant reservoir.TIPThe coolant should be between the mi-
nimum and maximum level marks.
Recommen ded en gine oil:
See page 8-1.
Oil quantity: Oil change:
2.40 L (2.54 US qt, 2.11 Imp.qt)
With oil filter removal: 2.60 L (2.75 US qt, 2.29 Imp.qt)
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Periodic maintenance an d a djustment
6-24
6
EAU37914
Checkin g the brake lever free
playThere should be no free play at the
brake lever end. If there is free play,
have a Yamaha dealer inspect the
brake system.
WARNING
EWA14212
A soft or spon gy feelin g in the brake
lever can in dicate the presence of
air in the hy draulic system. If there is
air in the hy draulic system, have a
Yamaha dealer blee d the system be-
fore operatin g the vehicle. Air in the
hy draulic system will diminish the b
rakin g performance, which may re-
sult in loss of control an d an acci-
d ent.
EAU22274
Brake li ght switchesThe brake light, which is activated by
the brake pedal and brake lever,
should come on just before braking
takes effect. If necessary, adjust the
rear brake light switch as follows, but
the front brake light switch should be
adjusted by a Yamaha dealer.
Turn the rear brake light switch adjust-
ing nut while holding the rear brake
light switch in place. To make the
brake light come on earlier, turn the ad-
justing nut in direction (a). To make the
brake light come on later, turn the ad-
justing nut in direction (b).
1. No brake lever free play
1
1. Rear brake light switch
2. Rear brake light switch adjusting nut
2
(b)
(a)
1
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Periodic maintenance an d a djustment
6-35
6
EAU23708
Replacin g the fusesThe main fuse, the fuel injection sys-
tem fuse, and fuse box 1 are located
under the rider seat. (See page 3-20.)TIPTo access the fuel injection system
fuse, remove the starter relay cover by
pulling it upward.
Fuse box 2 is located under panel A.
(See page 6-8.)
If a fuse is blown, replace it as follows.
1. Turn the key to “OFF” and turn off the electrical circuit in question.
2. Remove the blown fuse, and then install a new fuse of the specified
amperage. WARNING! Do not
use a fuse of a hi gher ampera ge
ratin g than recommen ded to avoi
d causin g extensive d am-
a g e to the electrical system an d
possi bly a fire.
[EWA15132]
3. Turn the key to “ON” and turn on
the electrical circuit in question to
check if the device operates.
4. If the fuse immediately blows again, have a Yamaha dealer
check the electrical system.
1. Main fuse
2. Fuel injection system spare fuse
3. Starter relay cover
4. Fuel injection system fuse
5. Fuse box 1
6. Backup fuse (for clock and immobilizer sys-tem)
7. Electronic throttle valve fuse
8. Spare fuse
2
1
5
6
3
748
1. Fuse box 2
2. Left radiator fan motor fuse
3. Right radiator fan motor fuse
4. Signaling system fuse
5. Ignition fuse
6. Taillight fuse
7. Headlight fuse
8. Spare fuse
Specifie d fuses:
Main fuse: 50.0 A
Fuel injection system fuse:
15.0 A
Electronic throttle valve fuse: 7.5 A
Backup fuse: 7.5 A
Radiator fan motor fuse:
15.0 A × 2
Ignition fuse: 15.0 A
Signaling system fuse: 10.0 A
Taillight fuse:
7.5 A
Headlight fuse: 15.0 A
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Periodic maintenance an d a djustment
6-36
6
EAU39014
Replacin g a hea dlig ht bul bThis model is equipped with halogen
bulb headlights. If a headlight bulb
burns out, replace it as follows.NOTICE
ECA10651
Take care not to damag e the follow-
in g parts:
 Hea dlig ht bul b
Do not touch the glass part of
the hea dlig ht bul b to keep it free
from oil, otherwise the transpar-
ency of the g lass, the luminosity
of the b ulb, an d the b ulb life will
b e ad versely affected . Thor-
ou ghly clean off any d irt and fin-
g erprints on the head light bul b
using a cloth moistened with al-
cohol or thinner.
 Hea dlig ht lens
Do not affix any type of tinted
film or stickers to the head light
lens.
Do not use a hea dlig ht bul b of a
watta ge hi gher than specified .
1. Remove the headlight bulb cover
by turning it counterclockwise.
2. Disconnect the headlight coupler. 3. Unhook the headlight bulb holder,
and then remove the burnt-out
bulb.
4. Place a new headlight bulb into position, and then secure it with
the bulb holder.
5. Connect the headlight coupler.1. Do not touch the glass part of the bulb.
1. Headlight bulb cover
1
1. Headlight coupler
1. Headlight bulb holder
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Periodic maintenance an d a djustment
6-37
6 6. Install the headlight bulb cover by
turning it clockwise.
7. Have a Yamaha dealer adjust the headlight beam if necessary.
EAU44941
Auxiliary li ghtThis model is equipped with an LED-
type auxiliary light.
If the auxiliary light does not come on,
have a Yamaha dealer check it.
EAU70540
Brake/tail li ghtThis model is equipped with an LED-
type brake/tail light.
If the brake/tail light does not come on,
have a Yamaha dealer check it.
1. Auxiliary light
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