2021 YAMAHA GRIZZLY 700 overheating

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EBU38261Battery voltage warning light “ ”
This warning light comes on if the detected battery
voltage is less than 10 volts, or greater than 18
volts.EBU38091Coolant temperature warning light “ ”
This warning light comes on in red when the en-
gine 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 9-65.)TIPThe coolant temperature warning light can be
checked by turning the key to “ ” (on). The
warning light should come on in purple briefly and
then go off. 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 deal-
er 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 warn-
ing light is on may cause damage to the en-
gine. EBU30484Engine 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 5-10). Have a Yamaha
dealer check the self-diagnostic system.
The electrical circuit of the warning light can be
checked by turning the key to “ ” (on). The
warning light should come on for a few seconds,
and then go off.
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.
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EBU30511Electric 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 remains on or
comes on after the engine is started, the EPS sys-
tem may not be working correctly. When this oc-
curs, 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.TIPIf the engine is stopped using the engine stop
switch and the key is in the “ ” (on) position,
the EPS warning light comes on to indicate that
the power assistance for the steering is not
functioning.
 If the steering load is too heavy (i.e., excessive
steering use when the ATV is traveling at a slow
speed), the power assist is reduced to protect
the EPS motor from overheating.
EBU38100Four-wheel drive icon “ ”, differential gear
lock icon “ ” and indicator light “ ”
The four-wheel drive icon “ ” comes on when the
drivetrain is set to “4WD” (four-wheel drive).
The differential gear lock icon “ ” and the differ-
ential gear lock indicator light “ ” come on
when the drivetrain is set to “4WD” with the differ-
ential gear locked.TIPDue to the synchronizing mechanism in the dif-
ferential gear case, the four-wheel drive icon
may not come on until the ATV starts moving.
 When the On-Command differential gear lock
switch is set to “LOCK” or “4WD”, the “ ” icon
and the “ ” indicator light will flash until the
differential gear is completely locked or un-
locked. Turn the handlebar or start moving to
help the differential lock to engage or disen-
gage.
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TIPWhen in reverse, the reverse indicator light
should come on. If the indicator light does not
come on, have a Yamaha dealer check the elec-
trical circuit.
 Due to the synchronizing mechanism in the en-
gine, the indicator light may not come on until
the ATV starts moving. 4. Check behind for people or obstacles, and
then release the brake pedal.
5. Open the throttle lever gradually and continue to watch to the rear while backing.EBU36861Engine break-inThere is never a more important period in the life
of your engine than the first 240 km (150 mi) or 20
hours of operation. For this reason, you should fol-
low the engine break-in instructions carefully.
Since the engine is brand new, do not put an ex-
cessive load on it for the first 240 km (150 mi) or
20 hours. During this period the various parts in
the engine wear and polish themselves to the cor-
rect operating clearances. Avoid prolonged full-
throttle operation or any condition that might re-
sult in engine overheating. 0–120 km (0–75 mi) or 0–10 hours
Avoid prolonged operation above 1/2 throttle.
Vary the speed of the ATV regularly. Do not oper-
ate it at one set throttle position.
120–240 km (75–150 mi) or 10–20 hours
Avoid prolonged operation above 3/4 throttle. Rev
the engine freely, but do not use full throttle at any
time.
240 km (150 mi) or 20 hours and beyond
The ATV can now be operated normally.
NOTICEECB00221If any engine trouble should occur during the
engine break-in period, immediately have a
Yamaha dealer check the ATV. EBU27322ParkingWhen parking the ATV, stop the engine, and shift
the drive select lever into the park position.
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9-65
9Engine overheating
WARNING
EWB02291Wait for the engine and radiator to cool before removing the radiator cap. You could be burned by
hot fluid and steam blown out under pressure. Always put a thick rag over the cap when opening.
Allow any remaining pressure to escape before completely removing the cap. TIP
Tap water can be used in an emergency. Change to the recommended coolant as soon as possible.
 The engine will tend to overheat if the radiator is caked with mud, or if the ATV is overloaded. 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 check
and 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.
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