2018 YAMAHA YZF-R6 engine

Instrument and control functions
4-15
4
Total fuel use
d
This display shows the total amount of
fuel that has been used since it was
last reset.
When using kilometers, this figure is
shown in liters. When using miles, this
figure is shown in gallons.
To reset the total fuel used display,
push the “RESET” button for one se-
cond.
TIP
After the total fuel used display is reset,
“_ _ . _” will be shown until the vehicle
has traveled a sufficient distance.
Display bri ghtness an d shift li ght
control mod e This mode cycles through five control
functions, allowing you to make the fol-
lowing settings in the order listed be-
low.
 Display brightness - adjust the
brightness of the displays and ta-
chometer.
 Shift light activity function - set the
shift light to on, flash, or off.
 Shift light activation - set the en-
gine speed at which the shift light
will be come on.
 Shift light deactivation - set the
engine speed at which the shift
light will be go off.
 Shift light brightness - adjust the
brightness of the shift light.
TIP
Refer to the brightness level display
when adjusting brightness levels.
To adjust the display and tachometer
brightness
1. Turn the key to “OFF”.
2. Push and hold the “SELECT” but-
ton.
3. Turn the key to “ON”, and then re- lease the “SELECT” button after
five seconds.
4. Push the “RESET” button to set the brightness level.
5. Push the “SELECT” button to con- firm the setting. The control mode
changes to the shift light activity
function.
To set the shift light activity function
1. Push the “RESET” button to select one of the following shift light ac-
tivity settings:
1. Total fuel used display
1. Shift light
2. Shift light activation range
3. Brightness level display
1
12
3
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Instrument and control functions
4-16
4 
On - the shift light will come
on when activated. (This set-
ting is selected when the shift
light stays on.)
 Flash - the shift light will flash
when activated. (This setting
is selected when the shift light
flashes four times per se-
cond.)
 Off - the shift light is deacti-
vated; in other words, it will
not come on or flash. (This
setting is selected when the
shift light flashes once every
two seconds.)
2. Push the “SELECT” button to con- firm the selected shift light activity.
The control mode changes to the
shift light activation point setting
function.
To set the shift light activation point
TIP
The shift light activation point can be
set between 10000 r/min and 18000
r/min. From 10000 r/min to 13000
r/min, the shift light can be set in incre-
ments of 500 r/min. From 13000 r/min
to 18000 r/min, the shift light can be set
in increments of 200 r/min.
1. Push the “RESET” button to set the activation point engine speed.
2. Push the “SELECT” button to con- firm the setting. The control mode
changes to the shift light deactiva-
tion point setting function. To set the shift light deactivation point
TIP
The deactivation range is the same as
the activation range. However, be sure
to set the deactivation point to a higher
engine speed than the activation point,
otherwise the shift light will not come
on.
1. Push the “RESET” button to set
the deactivation point engine
speed.
2. Push the “SELECT” button to con- firm the setting. The control mode
changes to the shift light bright-
ness function.
To adjust the shift light brightness
1. Push the “RESET” button to set the shift light brightness level.
2. Push the “SELECT” button to con- firm the setting and exit the dis-
play brightness and shift light
control mode.
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Instrument and control functions
4-20
4
EAU13075
Fuel tank cap
To open the fuel tank cap
Open the fuel tank cap lock cover, in-
sert the key into the lock, and then turn
it 1/4 turn clockwise. The lock will be
released and the fuel tank cap can be
opened.
To close the fuel tank cap
1. Push the fuel tank cap into posi- tion with the key inserted in the
lock.
2. Turn the key counterclockwise to the original position, remove it,
and then close the lock cover.
TIP
The fuel tank cap cannot be closed un-
less the key is in the lock. In addition,
the key cannot be removed if the cap is
not properly closed and locked.
WARNING
EWA11092
Make sure that the fuel tank cap is
properly close d after fillin g fuel.
Leakin g fuel is a fire hazar d.
EAU13222
Fuel
Make sure there is sufficient gasoline in
the tank.
WARNING
EWA10882
Gasoline an d gasoline vapors are
extremely flamma ble. To avoi d fires
an d explosions an d to re duce the
risk of injury when refuelin g, follow
these instructions.
1. Before refueling, turn off the en- gine and be sure that no one is sit-
ting on the vehicle. Never refuel
while smoking, or while in the vi-
cinity of sparks, open flames, or
other sources of ignition such as
the pilot lights of water heaters
and clothes dryers.
2. Do not overfill the fuel tank. When refueling, be sure to insert the
pump nozzle into the fuel tank filler
hole. Stop filling when the fuel
reaches the bottom of the filler
tube. Because fuel expands when
it heats up, heat from the engine or
the sun can cause fuel to spill out
of the fuel tank.1. Fuel tank cap lock cover
2. Unlock.
1
2
1. Fuel tank filler tube
2. Maximum fuel level
12
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Instrument and control functions
4-21
4
3. Wipe up any spilled fuel immedi-
ately. NOTICE: Immediately
wipe off spilled fuel with a clean,
dry, soft cloth, since fuel may
deteriorate painted surfaces or
plastic parts.
[ECA10072]
4. Be sure to securely close the fuel tank cap.
WARNING
EWA15152
Gasoline is poisonous and can cau-
se injury or death. Handle gasoline
with care. Never siphon gasoline by
mouth. If you should swallow some
gasoline or inhale a lot of gasoline
vapor, or get some gasoline in your
eyes, see your doctor immediately. If
gasoline spills on your skin, wash
with soap and water. If gasoline
spills on your clothing, change your
clothes.
EAU75320
NOTICE
ECA11401
Use only unleaded gasoline. The use
of leaded gasoline will cause severe
damage to internal engine parts,
such as the valves and piston rings,
as well as to the exhaust system.
TIP
This mark identifies the recom-
mended fuel for this vehicle as
specified by European regulation
(EN228).
 Check that gasoline nozzle has
the same identifier when fueling.
Your Yamaha engine has been de-
signed to use premium unleaded gas-
oline with a research octane number of
95 or higher. If knocking (or pinging)
occurs, use a gasoline of a different
brand. Use of unleaded fuel will extend
spark plug life and reduce mainte-
nance costs.
Gasohol
There are two types of gasohol: gaso-
hol containing ethanol and that con-
taining methanol. Gasohol containing
ethanol can be used if the ethanol con-
tent does not exceed 10% (E10). Gas-
ohol containing methanol is not
recommended by Yamaha because it
can cause damage to the fuel system
or vehicle performance problems.
Recommended fuel:
Premium unleaded gasoline (Gaso-
hol [E10] acceptable)
Fuel tank capacity: 17 L (4.5 US gal, 3.7 Imp.gal)
Fuel reserve amount (when the fuel
level warning light comes on): 3.4 L (0.90 US gal, 0.75 Imp.gal)
E5E10
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Instrument and control functions
4-29
4
TIP
Although a damping force adjuster
may turn or click beyond the stated mi-
nimum settings, such adjustments are
ineffective and may damage the sus-
pension.
WARNING
EWA10222
This shock a bsor ber assem bly con-
tains hi ghly pressurize d nitro gen
g as. Rea d an d un derstan d the fol-
lowin g information before han dlin g
the shock a bsor ber assem bly.
 Do not tamper with or attempt
to open the cylind er assembly.
 Do not su bject the shock a b-
sor ber assem bly to an open
flame or other hi gh heat source.
This may cause the unit to ex-
plo de due to excessive g as
pressure.
 Do not deform or damag e the
cylin der in any way. Cylin der
d amag e will result in poor
d ampin g performance.
 Do not d ispose of a damag ed or
worn-out shock a bsor ber as-
sem bl

y yourself. Take the shock
a b sor ber assem bly to a Yamaha
d ealer for any service.
EAU15283
EXUP system
This model is equipped with Yamaha’s
EXUP (EXhaust Ultimate Power valve)
system. This system boosts engine
power by means of a valve that regu-
lates the inner diameter of the exhaust
pipe. The EXUP system valve is con-
stantly adjusted in accordance with the
engine speed by a computer-con-
trolled servomotor.
NOTICE
ECA10192
 The EXUP system has been set
an d extensively teste d at the
Yamaha factory. Chan gin g
these settin gs without sufficient
technical knowle dge may result
in poor performance of or dam-
a g e to the en gine.
 If the EXUP system cannot be
hear d when the main switch is
turne d on, have a Yamaha deal-
er check it.
Slow compression dampin g settin g
Minimum (soft): 18 click(s) in direction (b)*
Standard:
14 click(s) in direction (b)*
Maximum (hard): 1 click(s) in direction (b)*
* With the adjusting bolt fully turned in direction (a)
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Instrument and control functions
4-31
4
EAU64051
Ig nition circuit cut-off system
This system prevents in-gear engine
starts unless the clutch lever is pulled
and the sidestand is up. Also, it will
stop the running engine should the
sidestand be lowered while the trans-
mission is in gear.
Periodically check the system via the
following procedure.
TIP
 This check is most reliable if per-
formed with a warmed-up engine.
 See pages 4-2 and 4-4 for switch
operation information.
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Instrument and control functions
4-32
4
With the engine turned off:
1. Move the sidestand down.
2. Set engine stop switch to run position.
3. Turn main switch to on position.
4. Shift transmission into neutral.
5. Push the start switch.
Does the engine start?
With the engine still running:
6. Move the sidestand up.
7. Pull the clutch lever.
8. Shift transmission into gear.
9. Move the sidestand down.
Does the engine stall?
After the engine has stalled:
10. Move the sidestand up.
11. Pull the clutch lever.
12. Push the start switch.
Does the engine start?
The system is OK. The motorcycle can
be ridden.
The neutral switch may not be working.
The motorcycle should not be ridden
until checked by a Yamaha dealer.
The sidestand switch may not be
working.
The motorcycle should not be ridden
until checked by a Yamaha dealer.
The clutch switch may not be working.
The motorcycle should not be ridden
until checked by a Yamaha dealer.
WARNING
If a malfunction is found, have the
vehicle inspected before riding.
YES NO
YESNO
YESNO
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For your safety – pre-operation checks
5-1
5
EAU63440
Inspect your vehicle each time you use it to make sure the vehicle is in safe oper-
ating condition. Always follow the inspection and maintenance procedures and
schedules described in the Owner’s Manual.
WARNING
EWA11152
Failure to inspect or maintain the vehicle properly increases the possibility
of an acci dent or equipment d amage. Do not operate the vehicle if you fin d
any prob lem. If a pro blem cannot be corrected b y the proce dures provi ded
in this manual, have the vehicle inspecte d b y a Yamaha d ealer.
Before using this vehicle, check the following points:
ITEM CHECKSPAGE
Fuel • Check fuel level in fuel tank.
• Refuel if necessary.
• Check fuel line for leakage.
• Check fuel tank overflow hose for obstructions, cracks
or damage, and check hose connection. 4-20,
4-22
En gine oil • Check oil level in engine.
• If necessary, add recommended oil to specified level.
• Check vehicle for oil leakage. 7-13
Coolant • Check coolant level in reservoir.
• If necessary, add recommended coolant to specified
level.
• Check cooling system for leakage. 7-17
Front brake • Check operation.
• If soft or spongy, have Yamaha dealer bleed hydraulic
system.
• Check brake pads for wear.
• Replace if necessary.
• Check fluid level in reservoir.
• If necessary, add specified brake fluid to specified level.
• Check hydraulic system for leakage. 7-25,
7-26
Rear brake • Check operation.
• If soft or spongy, have Yamaha dealer bleed hydraulic
system.
• Check brake pads for wear.
• Replace if necessary.
• Check fluid level in reservoir.
• If necessary, add specified brake fluid to specified level.
• Check hydraulic system for leakage. 7-25,
7-26
Clutch • Check operation.
• Lubricate cable if necessary.
• Check lever free play.
• Adjust if necessary. 7-23
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