2018 YAMAHA YZF-R6 warning

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
4-22
4
EAU80200
Fuel tank overflow hose
Before operating the vehicle:
 Check the fuel tank overflow hose
connection.
 Check the fuel tank overflow hose
for cracks or damage, and replace
it if necessary.
 Make sure that the end of the fuel
tank overflow hose is not blocked,
and clean it if necessary.
 Make sure that the end of the fuel
tank overflow hose is positioned
as shown.
TIP
See page 7-12 for canister information.
EAU13447
Catalytic converters
This vehicle is equipped with catalytic
converters in the exhaust system.
WARNING
EWA10863
The exhaust system is hot after op-
eration. To prevent a fire hazar d or
b urns:
 Do not park the vehicle near
possi ble fire hazar ds such as
g rass or other materials that
easily burn.
 Park the vehicle in a place
where ped estrians or child ren
are not likely to touch the hot
exhaust system.
 Make sure that the exhaust sys-
tem has coole d down before
d oin g any maintenance work.
 Do not allow the eng ine to idle
more than a few minutes. Lon g
i d lin g can cause a b uild-up of
heat.
NOTICE
ECA10702
Use only unlea ded g asoline. The use
of lead ed g asoline will cause unre-
paira ble damag e to the catalytic
converter.
1. Guide
2. Fuel tank overflow hose
1 2
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Instrument and control functions
4-24
4 2. Install the bolts with the hexagon
wrench.
3. Insert the hexagon wrench back into its holder.
4. Install the passenger seat.
TIP
Make sure that the seats are properly
secured before riding.
EAU39672
Rear view mirrors
The rear view mirrors of this vehicle
can be folded forward or backward for
parking in narrow spaces. Fold the mir-
rors back to their original position be-
fore riding.
WARNING
EWA14372
Be sure to fol d the rear view mirrors
b ack to their ori ginal position before
ri din g.
1. Seat holder
2. Projection
2
1
1. Riding position
2. Parking position
1
2
2
1
UBN6E1E0.book Page 24 Thursday, October 5, 2017 2:48 PM

Instrument and control functions
4-25
4
EAU79921
A djustin g the front fork
This model is equipped with adjustable
suspension. The spring preload, re-
bound damping force, and compres-
sion damping force of each leg can be
adjusted.
WARNING
EWA10181
Always a djust both fork le gs equally,
otherwise poor han dlin g an d loss of
sta bility may result.
NOTICE
ECA24120
 Use extra care to avoi d scratch-
in g the ano dize d finish of the
a d justin g nuts and b olts when
makin g suspension a djust-
ments.
 To avoi d d amag ing the suspen-
sion’s internal mechanisms, do
not attempt to turn beyon d the
maximum or minimum settin gs.
Sprin g preloa d
To increase the spring preload and
thereby harden the suspension, turn
the adjusting nut on each fork in direc-
tion (a). To decrease the spring preload
and thereby soften the suspension,
turn the adjusting nut on each fork in
direction (b). Re
boun d d ampin g force
To increase the rebound damping for-
ce and thereby harden the rebound
damping, turn the adjusting bolt on
each fork leg in direction (a). To de-
crease the rebound damping force and
thereby soften the rebound damping,
turn the adjusting bolt on each fork leg
in direction (b).
1. Spring preload adjusting nut
Sprin g preloa d settin g:
Minimum (soft): 0 turn(s) in direction (a)*
Standard: 6 turn(s) in direction (a)*
Maximum (hard):
15 turn(s) in direction (a)*
* With the adjusting nut fully turned in direction (b)
1. Rebound damping force adjusting bolt
(a)(b)
1
(a)(b)
1
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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
4-30
4
EAU70641
Auxiliary DC connector
This vehicle is equipped with an auxil-
iary DC connector. Consult your
Yamaha dealer before installing any accessories.
EAU15306
Si destan d
The sidestand is located on the left
side of the frame. Raise the sidestand
or lower it with your foot while holding
the vehicle upright.
TIP
The built-in sidestand switch is part of
the ignition circuit cut-off system,
which cuts the ignition in certain situa-
tions. (See the following section for an
explanation of the ignition circuit cut-
off system.)
WARNING
EWA10242
The vehicle must not be ri dden with
the si destan d d own, or if the si de-
stan d cannot b e properly move d up
(or does not stay up), otherwise the
si destan d coul d contact the groun d
an d d istract the operator, resultin g
in a possi ble loss of control.
Yamaha’s ig nition circuit cut-off
system has been desi gne d to assist
the operator in fulfillin g the respon-
si bility of raisin g the si destan d b e-
fore startin g off. Therefore, check
this system re gularly an d have a
Yamaha dealer repair it if it does not
function properly.
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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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