2020 YAMAHA YXZ1000R SS engine overheat

5-4
5
and/or turn the steering wheel back and
forth to help the differential to lock or un-
lock. EBU34932Shift light
This light can be set to come on and go off at
the desired engine speeds and is used to in-
form the driver when it is time to upshift.
The electrical circuit of the shift light can be
checked by turning the key to “ ” (on). If the
light does not come on initially when the key
is turned to “ ” (on), or if the light remains
on, have a Yamaha dealer check the electrical
circuit.TIPSee page 5-16 for an explanation of how to
set the shift light.
EBU35283Coolant temperature warning light “ ”
This warning light comes on when the coolant
temperature, and therefore the engine, is out-
side its normal operating temperature range.
The warning light comes on in blue to inform
the driver that the vehicle should be warmed
up. After the engine is started, warm it up until
the warning light goes off.
The vehicle can be operated normally when
the warning light is off.
The warning light comes on in red when the
engine is overheating. If the red light comes
on, stop the vehicle as soon as it is safe to do
so and allow the engine to idle for about 10
minutes. If the warning light does not go off,
stop the engine and allow it to cool. (See page
9-71.)TIPIf you continue to drive the vehicle while the
engine is overheating, a buzzer will sound.
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The coolant temperature warning light can
be checked by turning the key to “ ” (on).
The warning light should come on in purple
briefly (which confirms that both the blue
and red indicators are okay) and then go
off. If the warning light does not come on at
all, comes on in red or blue, or if the warning
light remains on, have a Yamaha dealer
check the vehicle. NOTICEECB02040The engine may overheat if the vehicle is
overloaded. If this happens, reduce the
load to specification.
 After restarting, make sure that the
warning light is out. Continuous use
while this warning light is on may cause
damage to the engine.
EBU31341Engine trouble warning light “ ”
This warning light comes on or flashes if a
problem is detected in the electrical circuit
monitoring the engine. When this occurs, the
display will indicate an error code (see page
5-18). Have a Yamaha dealer check the self-
diagnosis system.
The electrical circuit of the warning light can
be checked by turning the key to “ ” (on). If
the warning light does not come on initially
when the key is turned to “ ” (on), or if the
warning light remains on, have a Yamaha
dealer check the vehicle.EBU33041Electric Power Steering warning light
“EPS”
This warning light comes on when the key is
turned to “ ” (on), and then goes off once
the engine is started. If the warning light re-
mains on or comes on after the engine is
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started, the EPS system may not be working
correctly. When this occurs, have a Yamaha
dealer check the EPS system.
The electrical circuit of the warning light can
be checked by turning the key to “ ” (on). If
the warning light does not come on, have a
Yamaha dealer check the electrical circuit.TIPIf the steering load is too heavy (e.g., exces-
sive steering use at slow speed or when op-
erating in deep mud, sand, or snow), the
power assist is reduced to protect the EPS
motor from overheating. EBU36713Half clutch indicator light “ ”
This indicator light comes on to inform the
driver when the clutch is partially engaged.
Normal, temporary partial-engagement oc-
curs when starting off or when shifting gears.
The indicator light may also come on during
engine braking or in other situations. The electrical circuit of the indicator light can
be checked by turning the key to “ ” (on). If
the indicator light does not come on and then
go off, have a Yamaha dealer check the elec-
trical circuit.
TIPIf the indicator light stays on while driving, ei-
ther release the accelerator pedal or further
press down the accelerator pedal (release or
increase throttle) to fully engage or disengage
the clutch. NOTICEECB03351Do not use the throttle (accelerator pedal)
to hold the vehicle stationary when on an
incline or navigating obstacles. Continu-
ous operation while the indicator light is on
may lead to shortened clutch life.
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the engine is not warmed up or is overheat-
ing.
 the driver seat belt is not latched.
 the differential gear is locked (“DIFF LOCK”
is selected) or the differential gear lock indi-
cator is flashing.
 the parking brake is applied.
 an engine or system malfunction is detect-
ed (a warning light is on). To activate the launch system1. Confirm that the front wheels and steer-
ing wheel are pointed straight ahead.
2. Shift the transmission into first gear.
3. While pressing the brake pedal, pull both
shift paddles toward you and hold them
in that position. The launch system indi-
cator light will come on, and the launch
system enters standby mode. 4. While checking in front of you for obsta-
cles or anything that may cross your
path, release the brake pedal, and then
press the accelerator pedal to rev the en-
gine to the desired launch engine speed.
TIPThe engine speed at launch must be be-
tween 5000–10000 r/min.
 If you release one shift paddle, or if a sys-
tem restriction is detected during standby
mode, the launch system indicator light will
begin to flash and the launch will be can-
celled.
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9
Additionally, the fuel injection system
would be affected, resulting in poor engine
performance and possible overheating. Clean the primary air filter as follows. 1. Remove the air filter case cover by turn- ing the air filter case cover lock counter-
clockwise.TIPMake sure that the match mark on the cover
lock is aligned with the open match mark on
the air filter case cover.
2. Remove the foam air filter.1. Air filter case cover lock
2. Air filter case cover
3. Match mark
1
2
3
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9
Engine overheating
Wait for the engine to cool before removing the radiator cap. WARNING! If the engine is not
cool when removing the radiator cap, hot fluid and steam could blow out under pressure
and burn you.
[EWB03460]
Place a thick rag over the cap and remove the cap slowly to allow any re-
maining pressure to escape.
TIP Tap water can be used in an emergency. Ch ange to the recommended coolant as soon as
possible.
 The engine will tend to overheat if the radiator is caked with mud, or if air was not properly bled
from the cooling system. Wait until the
engine has cooled.
Check the coolant le vel in the
coolant reservoir and/or radiator.
Level is OK.Level is low, check the
cooling system for leakage.
No
leakage.Leakage.
Ask a Yamaha dealer to inspect
and repair the cooling system.Add coolant. (See TIP.)
Restart the engine. If the engine o verheats again, ask a
Yamaha dealer to inspect and/or repair the cooling system.
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