Page 59 of 130

Instrument and control functions
4-37
1
2
345
6
7
8
9
10
11
12
EAU80200
Fuel tank overflow hoseBefore 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 hos e is positioned as
shown.
TIPSee page 7-12 for canister information.
EAU13434
Catalytic converterThis model is equipped with a catalytic
converter in the exhaust system.
WARNING
EWA10863
The exhaust system is hot after op-
eration. To prevent a fire hazard or
burns:
Do not park the vehicle near
possible fire hazards such as
grass or other materials that
easily burn.
Park the vehicle in a place
where pedestrians or children
are not likely to touch the hot
exhaust system.
Make sure that the exhaust sys-
tem has cooled down before do-
ing any maintenance work.
Do not allow the engine to idle
more than a few minutes. Long
idling can cause a build-up ofheat.
NOTICE
ECA10702
Use only unleaded gasoline. The use
of leaded gasoline will cause unre-
1. Clamp
2. Paint mark
3. Fuel tank overflow hose
1
2
3
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Page 63 of 130

Instrument and control functions
4-41
1
2
345
6
7
8
9
10
11
12
direct sunlight.
EAU47261
Rear view mirrorsThe rear view mirrors of this vehicle can
be folded forward for parking in narrow
spaces. Fold the mirrors back to their
original position before riding.
WARNING
EWA14372
Be sure to fold the rear view mirrors
back to their original position beforeriding.
EAU66474
Adjusting the front forkNOTICE
ECA22471
Use extra care to avoid scratch-
ing the gold-anodized finish
when making suspension ad-
justments.
To avoid damaging the suspen-
sion’s internal mechanisms, do
not attempt to turn beyond themaximum or minimum settings.
For YZF-R1
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 adjust both fork legs equal-
ly, otherwise poor handling and lossof stability may result.
Spring preload
To increase the spring preload and
thereby harden the suspension, turn
1. Riding position
2. Parking position11
2 22
2
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Page 66 of 130

Instrument and control functions
4-44
1
2
34
5
6
7
8
9
10
11
12
EAU66493
Adjusting th e shock absorber
assembly
WARNING
EWA10222
This shock absorber assembly con-
tains highly pressurized nitrogen
gas. Read and understand the fol-
lowing information before handling
the shock absorber assembly.
Do not tamper with or attempt to
open the cylinder assembly.
Do not subject the shock ab-
sorber assembly to an open
flame or other high heat source.
This may cause the unit to ex-
plode due to excessive gas
pressure.
Do not deform or damage the
cylinder in any way. Cylinder
damage will result in poor
damping performance.
Do not dispose of a damaged or
worn-out shock absorber as-
sembly yourself. Take the shock
absorber assembly to a Yamahadealer for any service.
NOTICE
ECA10102
To avoid damaging the mechanism,
do not attempt to turn beyond themaximum or minimum settings.
For YZF-R1:
This model is equipped with adjustable
suspension. The spring preload, re-
bound damping force, fast compres-
sion damping force, and slow
compression damping force can be ad-
justed.
Spring preload
1. Loosen the locknut.
2. To increase the spring preload and thereby harden the suspension,
turn the adjusting ring in direction
(a). To decrease the spring pre-
load and thereby soften the sus-
pension, turn the adjusting ring in
direction (b).
The spring preload setting is deter-
mined by measuring distance A.
The longer distance A is, the high-
er the spring preload; the shorter
distance A is, the lower the spring preload.
Use the special wrench includ-
ed in the owner’s tool kit to
make the adjustment.
1. Spring preload adjusting ring
2. Locknut
1. Distance A
(a)
(b)1
2
1
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Instrument and control functions
4-48
1
2
34
5
6
7
8
9
10
11
12
EAU70641
Auxiliary DC connectorThis vehicle is equipped with an auxilia-
ry DC connector. Consult your Yamaha
dealer before installing any accesso-
ries.
EAU15306
SidestandThe sidestand is located on the left side
of the frame. Raise the sidestand or
lower it with your foot while holding the
vehicle upright.TIPThe built-in sidestand switch is part of
the ignition circuit cut-off system, which
cuts the ignition in certain situations.
(See the following section for an expla-
nation of the ignition circuit cut-off sys-tem.)
WARNING
EWA10242
The vehicle must not be ridden with
the sidestand down, or if the sides-
tand cannot be properly moved up
(or does not stay up), otherwise the
sidestand could contact the ground
and distract the operator, resulting
in a possible loss of control.
Yamaha’s ignition circuit cut-off
system has been designed to assist
the operator in fulfilling the respon-
sibility of raising the sidestand be-
fore starting off. Therefore, check
this system regularly and have a Yamaha dealer repair it if it does not
function properly.
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Page 72 of 130

Instrument and control functions
4-50
1
2
34
5
6
7
8
9
10
11
12
With the engine turned off:
1. Move the sidestand down.
2. Set engine stop s witch to run position.
3. T urn m ain switch to on position.
4. Shift tr ansmission into neutr al.
5. Push the start switch.
Does the engine start?
With the engine still r unning:
6. Move the sidestand up.
7. Pull the clutch lever.
8. Shift tr ansmission into gear.
9. Move the sidestand down.
Does the en gine 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.
YES NO
YES
NO
YES
NO
The neutral switch ma y not be working.
The motorcycle should not be ridden until
checked b y a Yamaha dealer.
The clutch s witch may not be working.
The motorcycle should not be ridden until
checked b y a Yamaha dealer.The sidestand s witch may not be working.
The motorcycle should not be ridden until
checked b y a Yamaha dealer.If a malfunction is found, have the vehicle
inspected before riding.
WARNING
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Page 73 of 130

5-1
1
2
3
456
7
8
9
10
11
12
For your safety – pre-operation checks
EAU15599
Inspect your vehicle each time you use it to make sure the vehicle is in safe operating 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 accident or equipment damage.
Do not operate the vehicle if you find any problem. If a problem cannot be corrected by the procedures provided inthis manual, have the vehicle inspected by a Yamaha dealer.
Before using this vehicle, check the following points:
ITEM CHECKS PAGE
Fuel Check fuel level in fuel tank.
Refuel if necessary.
Check fuel line for leakage.
Check fuel tank breather hose and overflow hose for obstructions, cracks or
damage, and check hose connections. 4-35, 4-37
Engine oil Check oil level in engine.
If necessary, add recommended oil to specified level.
Check vehicle for oil leakage. 7-12
Coolant Check coolant level in reservoir.
If necessary, add recommended coolant to specified level.
Check cooling system for leakage. 7-15
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. 7-23, 7-24
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Page 76 of 130

6-1
1
2
3
4
56
7
8
9
10
11
12
Operation and important riding points
EAU15952
Read the Owner’s Manual carefully to
become familiar with all controls. If
there is a control or function you do not
understand, ask your Yamaha dealer.
WARNING
EWA10272
Failure to familiarize yourself with
the controls can lead to loss of con-
trol, which could cause an accidentor injury.
EAU73461
TIPThis model is equipped with:
an inertial measurement unit (IMU)
that will stop the engine in case of
turnover. In this case, turn the
main switch off (and then back on)
before attempting to restart the en-
gine. Failing to do so will prevent
the engine from starting even
though the engine will crank when
the start switch is pushed.
an engine auto-stop system. The
engine stops automatically if left
idling for 20 minutes. In this case,
simply push the start switch to re-start the engine.
EAU79303
Starting the engineIn order for the ignition circuit cut-off
system (page 4-49) to enable starting,
one of the following conditions must be
met:
The transmission is in the neutral
position.
The transmission is in gear with
the clutch lever pulled and the sid-
estand up.
To start the engine
1. Insert the key into the main switch.
2. Set the Stop/Run/Start switch to “”.
3. Turn the main switch (key) to “ON”.
4. Confirm the following warning lights and indicator lights perform a
self-check.
Engine trouble warning light
Oil pressure and coolant tem-
perature warning light
ABS warning light
Fuel level warning light
Auxiliary system warning light
Shift indicator light
Stability control indicator light
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Operation and important riding points
6-2
1
2
3
4
567
8
9
10
11
12
Immobilizer system indicator
light
TIP
The oil pressure and coolant tem-
perature warning light will come
on, go off briefly, and then remain
on until the engine is started.
The ABS warning light will remainon until the vehicle starts moving.
NOTICE
ECA24110
If a warning or indicator light does
not work as described above, have aYamaha dealer check the vehicle.
5. Shift the transmission into the neu- tral position (or hold the clutch le-
ver pulled with the sidestand up).
6. Push the start switch, and release it when the engine starts.
If the engine does not start within 5
seconds of pressing the start
switch, wait 10 seconds before
pressing the switch again to allow
battery voltage to restore.
NOTICE
ECA11043
For maximum engine life, never ac-
celerate hard when the engine iscold!
EAU67082
ShiftingShifting gears lets you control the
amount of engine power available for
starting off, accelerating, climbing hills,
etc.
This model is equipped with QSS. See
pages 3-3 and 4-17.TIPTo shift into neutral ( ), gently de-
press the shift pedal from 2nd gear, orslightly raise it while in 1st gear.NOTICE
ECA22521
Even with the transmission in
1. Gear positions
2. Shift pedal
1 2 3 4
5 6
N
1
2
BX4-9-E1_1.book 2 ページ 2018年4月27日 金曜日 午後4時3分