YAMAHA YZF-R6 2016 Repair Manual

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
6-11
6 4. Install the bolts, quick fasteners,
and quick fastener screw.
Cowlin g C
To remove the cowling
1. Remove cowling B and panel B. (See page 6-11.)
2. Unfasten the wire harness by pressing on the projection to open
the plastic fastener. 3. Remove the bolts and the quick
fastener, and then pull the cowling
off as shown. To install the cowling
1. Fit the slot in cowling C over the
projection on the front cowling.
2. Install the bolts and the quick fas- tener.
3. Place the wire harness in the orig- inal position, and then close the
plastic fastener.
4. Install the cowling and the panel.
EAU39063
Panels A an d B
To remove a panelRemove the bolts, and then pull the
panel off as shown.
1. Cowling A
2. Cowling B
1. Plastic fastener
2. Projection
3. Wire harness
1. Cowling C
2. Bolt
3. Quick fastener
1. Cowling C
2. Slot
3. Front cowling
4. Projection
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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
6-14
6
6. Insert and tighten the engine oil
dipstick, and then install and tight-
en the oil filler cap.
To chan ge the en gine oil (with or
without oil filter cartri dge replace-
ment) 1. Place the vehicle on a level surfa- ce.
2. Remove cowling A. (See page 6-8.)
3. Start the engine, warm it up for several minutes, and then turn it
off.
4. Place an oil pan under the engine to collect the used oil.
5. Remove the engine oil filler cap, the engine oil drain bolt and its
gasket to drain the oil from the
crankcase.
TIPSkip steps 6–12 if the oil filter cartridge
is not being replaced.6. Remove the shift arm bolt, andthen pull the shift arm off the shift
shaft.
7. Remove the fuel tank breather hose and overflow hose from the
guides. 8. Remove the oil filter cartridge with
an oil filter wrench.1. Engine oil drain bolt
2. Gasket
12
1. Bolt
2. Shift arm
3. Oil filter cartridge
4. Guide
5. Fuel tank breather hose and overflow hose
1. Oil filter wrench
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Periodic maintenance an d a djustment
6-15
6
TIPAn oil filter wrench is available at a
Yamaha dealer.9. Apply a thin coat of clean engine oil to the O-ring of the new oil filter
cartridge.TIPMake sure that the O-ring is properly
seated.10. Install the new oil filter cartridge with an oil filter wrench, and then
tighten it to the specified torque
with a torque wrench. 11. Install the fuel tank breather hose
and overflow hose into the guides,
then place them in their original
position.
12. Install the shift arm by aligning the match mark on the shift arm with
the match mark on the shift shaft
and installing the shift arm bolt,
then tightening it to the specified
torque. NOTICE: Be sure to ali gn
the match marks to ensure
proper shiftin g. If the match
marks are not ali gne d, the shift arm will not move correctly an
d
you may not be a ble to shift up
or down.
[ECA15343]
13. Install the engine oil drain bolt and
its new gasket, and then tighten
the bolt to the specified torque.
1. O-ring
1. Torque wrenchTightenin g torque:
Oil filter cartridge: 17 Nm (1.7 m·kgf, 12 ft·lbf)
1. Bolt
2. Shift shaft
3. Match marks
4. Shift armTightenin g torque:
Shift arm bolt: 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Ti ghtenin g torque:
Engine oil drain bolt:
43 Nm (4.3 m·kgf, 31 ft·lbf)
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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
6-17
6
3. If the coolant is at or below the mi-
nimum level mark, remove panel B
to access the coolant reservoir.
(See page 6-8.)
4. Remove the coolant reservoir cap, add coolant to the maximum level
mark, and then install the reservoir
cap. WARNING! Remove only
the coolant reservoir cap. Never
attempt to remove the ra diator
cap when the en gine is hot.
[EWA15162]
NOTICE: If coolant is not
availa ble, use distille d water or
soft tap water instead . Do not
use har d water or salt water
since it is harmful to the en gine. If water has
been used instead
of coolant, replace it with cool-
ant as soon as possi ble, other-
wise the coolin g system will not
b e protecte d a gainst frost an d
corrosion. If water has been
a dde d to the coolant, have a
Yamaha dealer check the anti-
freeze content of the coolant as
soon as possi ble, otherwise the
effectiveness of the coolant will
b e re duce d.
[ECA10473]
5. Install the panel.
EAU39006
To chan ge the coolant
1. Place the vehicle on a level surfa- ce and let the engine cool if neces-
sary.
2. Remove cowlings B and C. (See page 6-8.)
3. Place a container under the en- gine to collect the used coolant.
4. Remove the radiator cap. WARNING! Never attempt to re-
move the ra diator cap when the
en gine is hot.
[EWA10382]
5. Remove the coolant drain bolt and
its gasket to drain the cooling sys-
tem.
1. Coolant reservoir
2. Maximum level mark
3. Minimum level mark
1. Coolant reservoir capCoolant reservoir capacity (up to
the maximum level mark):0.25 L (0.26 US qt, 0.22 Imp.qt)
1. Radiator cap
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Periodic maintenance an d a djustment
6-18
6
6. Move the hose clamp in the direc-
tion shown, and then disconnect
the radiator hose to drain the radi-
ator.
7. Remove the coolant reservoir by removing the bolts.
8. Remove the coolant reservoir cap, and then turn the coolant reservoir
upside down to empty it. 9. After the coolant is completely
drained, thoroughly flush the cool-
ing system with clean tap water.
10. Install the coolant reservoir by in- stalling the bolts.
11. Connect the radiator hose, and then move the hose clamp back to
its original position.
12. Install the coolant drain bolt and its new gasket, and then tighten
the bolt to the specified torque. 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.
15. Install the radiator cap, start the engine, let it idle for several minu-
tes, 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 radi-
ator, and then install the radiator
cap.
1. Coolant drain bolt
2. Gasket
3. Radiator hose
4. Hose clamp
1
2
4
3
1. Coolant reservoir cap
2. Coolant reservoir
3. Bolt
Tightenin g torque:
Coolant drain bolt:
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
2
1
3
Antifreeze/water mixture ratio: 1:1
Recommen ded antifreeze:
High-quality ethylene glycol anti-
freeze containing corrosion inhibi-
tors for aluminum engines
Coolant quantity:
Radiator (including all routes): 2.30 L (2.43 US qt, 2.02 Imp.qt)
Coolant reservoir (up to the maxi-
mum level mark): 0.25 L (0.26 US qt, 0.22 Imp.qt)
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Periodic maintenance an d a djustment
6-19
6 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.
EAU36765
Air filter elementThe air filter element must be replaced
at the intervals specified in the periodic
maintenance and lubrication chart.
Have a Yamaha dealer replace the air
filter element.
EAU44735
Checkin g the en gine i dlin g
spee dCheck the engine idling speed and, if
necessary, have it corrected by a
Yamaha dealer.En gine i dlin g spee d:
1250–1350 r/min
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