2018 YAMAHA YZF-R1 engine overheat

Instrument and control functions
4-8
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2
34
5
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11
12 not come on initially when the key is
turned to “ON”, or if the light remains
on, have a Yamaha dealer check the
vehicle.
EAU78410
Oil pressure and coolant tempera-
ture warning light “ ”
This warning light comes on if the en-
gine oil pressure is low or if the coolant
temperature is high. If this occurs, stop
the engine immediately.
The electrical circuit of the warning light
can be checked by turning the key to
“ON”. The warning light should come
on again after going off briefly, and then
remain on until the engine is started. If
the warning light does not come on ini-
tially when the key is turned to “ON”,
have a Yamaha dealer check the elec-
trical circuit.NOTICE
ECA22441
If the oil pressure and coolant warn-
ing light does not go off after start-
ing the engine or if it comes on while
the engine is running, stop the vehi-
cle and engine immediately.
If the engine is overheating, the coolant temperature warning
icon will come on. Let the en-
gine cool. Check the coolant
level (see page 7-38).

If the engine oil pressure is low,
the oil pressure warning icon
will come on. Check the oil level
(see page 7-12).

If the warning light remains on
after letting the engine cool and
confirming the proper oil level,
have a Yamaha dealer check the
vehicle. Do not continue to op-erate the vehicle!
EAU83700
Auxiliary system warning light “ ”
This warning light comes on if a prob-
lem is detected in a non-engine-related
system. TIPWhen the vehicle is turned on, this light
should come on for a few seconds and
then go off. Otherwise, have a Yamahadealer check the vehicle.
EAU79283
DisplayThe display has two different main
screen display modes, STREET
MODE and TRACK MODE. Most of the
functions are viewable in either mode,
but the layout differs slightly. The fol-
lowing items can be found on the dis-
play.
Speedometer

Tachometer

Information display

Transmission gear display

Front brake pressure indicator

Acceleration indicator

YRC setting display MODE/PWR/
TCS/SCS

YRC setting display LCS/QS/LIF

ERS indicator (YZF-R1M)

GPS indicator (CCU-equipped
models)

Clock

Revolution peak hold indicator

Lap timer

Various warning icons

Error mode warning “Err”
TIPThis model uses a thin-film-transistor
BX4-9-E1_1.book 8 ページ ２０１８年４月２７日　金曜日　午後４時３分

Instrument and control functions
4-14
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12 Coolant temperature warning “ ”
This icon appears if the coolant temper-
ature reaches 117 
C (242 F) or high-
er. Stop the vehicle and turn off the
engine. Allow the engine to cool.
NOTICE
ECA10022
Do not continue to operate the en-gine if it is overheating.
Oil pressure warning “ ”
This icon appears when the engine oil
pressure is low. When the main switch
is first turned to ON, engine oil pressure
has yet to build, so this icon will come
on and stay on until the engine has
been started. NOTICE
ECA21210
If the warning light comes on when
the engine is running, stop the en-
gine immediately and check oil level.
If the oil level is below the minimum
level, add sufficient oil of the recom-
mended type to raise it up to the cor-
rect level. If the oil pressure warning
light remains on even if the oil level
is correct, immediately turn the en- gine off and have a Yamaha dealer
check the vehicle.
Error mode warning “Err”
When an internal error occurs (e.g.,
communication with a system controller
has been cut off), the error mode warn-
ing will appear as follows.
“Err” and “ ” indicates an ECU error.
“Err” and “ ” indicates an SCU error.
“Err” only indicates an HCU (hydraulic
control unit) error.TIPDepending on the nature of the error,
the display may not function properly
and YRC settings may be impossible to
change. Additionally, ABS and UBS
may not function properly. Use extra
care when braking and have a Yamahadealer check the vehicle immediately.
EAU79294
MENU screenThe MENU screen contains the follow-
ing setting modules. Select a module to
make related setting changes. Al-
though some settings can be changed
or reset via the main screen, the MENU
screen offers access to all display and
control settings.
Module
Description
Switch the main screen
display between street and
track modes.
Adjust YRC settings (all
models) and ERS settings
(YZF-R1M).
View and reset lap times.
Turn vehicle information
logging function on/off
(CCU-equipped models).
YRC Setting
Lap TimeLogging
Maintenance
Unit
Display ModeMENU
km/h
GPS
12
:
00
Display ModeYRC SettingL ap TimeLogging
BX4-9-E1_1.book 14 ページ ２０１８年４月２７日　金曜日　午後４時３分

Operation and important riding points
6-3
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3
4
56
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9
10
11
12 the neutral position, do not
coast for long periods of time
with the engine off, nor tow the
motorcycle for long distances.
The transmission is properly lu-
bricated only when the engine is
running. Inadequate lubrication
may damage the transmission.

Except when using the quick
shift system, always pull the
clutch lever when changing
gears to avoid damaging the en-
gine, transmission, and drive-train.
EAU16811
Tips for reducing fuel
consumptionFuel consumption depends largely on
your riding style. Consider the following
tips to reduce fuel consumption:
Shift up swiftly, and avoid high en-
gine speeds during acceleration.

Do not rev the engine while shifting
down, and avoid high engine
speeds with no load on the engine.

Turn the engine off instead of let-
ting it idle for an extended length of
time (e.g., in traffic jams, at traffic
lights or at railroad crossings).
EAU16842
Engine break-inThere is never a more important period
in the life of your engine than the period
between 0 and 1600 km (1000 mi). For
this reason, you should read the follow-
ing material carefully.
Since the engine is brand new, do not
put an excessive load on it for the first
1600 km (1000 mi). The various parts in
the engine wear and polish themselves
to the correct operating clearances.
During this period, prolonged full-throt-
tle operation or any condition that might
result in engine overheating must be
avoided.
EAU17085
0–1000 km (0–600 mi)
Avoid prolonged operation above 7000
r/min.
NOTICE: After 1000 km (600
mi) of operation, the engine oil must
be changed and the oil filter car-
tridge or element replaced.
[ECA10303]
1000–1600 km (600–1000 mi)
Avoid prolonged operation above 8400
BX4-9-E1_1.book 3 ページ ２０１８年４月２７日　金曜日　午後４時３分

Periodic maintenance and adjustment7-38
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Engine overheating
WARNING
EWAT1041

Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be
blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.

Place a thick rag, like a towel, over the radiator cap, and then slowly rotate the cap counterclockwise to the de-
tent to allow any residual pressure to escape. When the hissing sound has stopped, press down on the capwhile turning it counterclockwise, and then remove the cap.
TIPIf coolant is not available, tap water can be temporarily
used instead, provided that it is changed to the recommended coolantas soon as possible.
Wait until the
engine has cooled.
Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer checkand repair the cooling system.Add coolant. (See TIP.)
Start the engine. If the engine overheats again,
have a
Yamaha dealer check
and repair the cooling system.
There is
leakage.
There is
no leakage.
BX4-9-E1_1.book 38 ページ ２０１８年４月２７日　金曜日　午後４時３分