2019 YAMAHA YZF-R1 engine

Instrument and control functions
4-32
1
2
34
5
6
7
8
9
10
11
12
TIP
This mark identifies the recom-
mended fuel for this vehicle as
specified by European regulation
(EN228).

Check that gasoline nozzle has thesame identifier when fueling.
Your Yamaha engine has been de-
signed to use premium unleaded gaso-
line with a research octane number of
95 or higher. If knocking (or pinging) oc-
curs, use a gasoline of a different
brand. Use of unleaded fuel will extend
spark plug life and reduce maintenance
costs.
Gasohol
There are two types of gasohol: gaso- hol containing ethanol and that contain-
ing 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.
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 hose is positioned as
shown.
E5
E10
1. Clamp
2. Paint mark
3. Fuel tank overflow hose
1
2
3
BX4-9-E2.book 32 ページ ２０１８年９月６日　木曜日　午後４時３９分

Instrument and control functions
4-33
1
2
345
6
7
8
9
10
11
12
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- pairable damage to the catalytic
converter.
BX4-9-E2.book 33 ページ ２０１８年９月６日　木曜日　午後４時３９分

Instrument and control functions
4-35
1
2
345
6
7
8
9
10
11
12
2. Install the bolts with the hexagon
wrench.
3. Insert the hexagon wrench back into its holder.
4. Install the passenger seat.
TIPMake sure that the seats are properlysecured before riding.
EAU66920
Document storageA document storage space is located
under panel C. (See page 7-9.)
When storing the owner’s manual or
vehicle registration and insurance doc-
uments in the document storage space,
be sure to wrap them in a plastic bag so
that they will not get wet. When wash-
ing the vehicle, avoid letting water enter
the document storage space.NOTICE
ECA22540
Do not place heat-sensitive items in
the document storage space. This
space can get hot when the engine
is running or when the vehicle is in
direct sunlight.
1. Projection
2. Seat holder
1
2
1. Document storage space
2. Panel C
1
2
BX4-9-E2.book 35 ページ ２０１８年９月６日　木曜日　午後４時３９分

Instrument and control functions
4-40
1
2
34
5
6
7
8
9
10
11
12 may be the same.

Although a damping force adjuster
may turn or click beyond the stated
minimum settings, such adjust-
ments are ineffective and maydamage the suspension.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 Yamaha
dealer for any service.
EAU67050
EXUP systemThis model is equipped with Yamaha’s
EXUP (EXhaust Ultimate Power valve)
system. This system boosts engine
power by means of a valve that controls
exhaust flow within the exhaust cham-
ber.NOTICE
ECA15611
The EXUP system has been set and
extensively tested at the Yamaha
factory. Changing these settings
without sufficient technical knowl-
edge may result in poor perfor-mance of or damage to the engine.
BX4-9-E2.book 40 ページ ２０１８年９月６日　木曜日　午後４時３９分

Instrument and control functions
4-42
1
2
34
5
6
7
8
9
10
11
12
EAU57952
Ignition circuit cut-off systemThis 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 sides-
tand be lowered while the transmission
is in gear.
Periodically check this system via the
following procedure.TIP
This check is most reliable if per-
formed with a warmed-up engine.

See pages 4-2 and 4-3 for switchoperation information.
BX4-9-E2.book 42 ページ ２０１８年９月６日　木曜日　午後４時３９分

Instrument and control functions
4-43
1
2
345
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
BX4-9-E2.book 43 ページ ２０１８年９月６日　木曜日　午後４時３９分

5-1
1
2
3
45
6
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 vehi cle 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. 4-31, 4-32
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. 7-16
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. 7-24
BX4-9-E2.book 1 ページ ２０１８年９月６日　木曜日　午後４時３９分

6-1
1
2
3
4
567
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 4-42) 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
BX4-9-E2.book 1 ページ ２０１８年９月６日　木曜日　午後４時３９分