2014 YAMAHA VIKING engine overheat

4-4
4
5
6
7
8
9
10
11
12
13
14
5B410002Coolant temperature warning light “ ”
If the coolant temperature reaches a specific
level, this light comes on to warn that the cool-
ant temperature is too hot. If the light comes
on during operation, stop the engine as soon
as it is safe to do so and allow the engine to
cool down for about 10 minutes.
(See page 8-57.)
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 electrical circuit.
NOTICE●
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.
1XP7B_EE.book Page 4 Tuesday, February 4, 2014 3:40 PM

4-5
1
2
34
5
6
7
8
9
10
11
12
13
14
5B410003Engine 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,
have a Yamaha dealer check the self-diagno-
sis system. (See page 4-11 for an explanation
of the self-diagnosis device.)
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 electrical circuit.Electric 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
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 (i.e., exces-
sive steering use when the Viking is traveling
at a slow speed), the power assist is reduced
to protect the EPS motor from overheating.
1XP7B_EE.book Page 5 Tuesday, February 4, 2014 3:40 PM

8-25
1
2
3
4
5
6
78
9
10
11
12
13
14
5B410016Cleaning the air filter elementThe air filter element should be cleaned every
20–40 hours. It should be cleaned and lubri-
cated more often if the vehicle is operated in
extremely dusty areas. Each time air filter ele-
ment maintenance is performed, check the air
inlet to the air filter case for obstructions.
Check the air filter element rubber joint to the
throttle body and manifold fittings for an air-
tight seal. Tighten all fittings securely to avoid
the possibility of unfiltered air entering the en-
gine.NOTICENever operate the engine with the air filter
element removed. This will allow unfiltered
air to enter, causing rapid engine wear and
possible engine damage. Additionally, op-
eration without the air filter element will af-
fect the fuel injection system with
subsequent poor performance and possi-
ble engine overheating.
1. Remove the center passenger seat cush-
ion. (See page 4-18 for seat cushion re-
moval and installation procedures.)
2. Remove the air filter case cover by un- hooking the holders.1. Air filter case cover holder ( × 5)
2. Air filter case cover
2
1 1
1XP7B_EE.book Page 25 Tuesday, February 4, 2014 3:40 PM

8-57
1
2
3
4
5
6
78
9
10
11
12
13
14
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. Place a thick rag over the cap and remove the cap slowly to allow any remaining
pressure to escape.TIPIf it is difficult to get the recommended coolant, tap water can be used temporarily, provided that
it is changed to the recommended coolant as soon as possible.Wait until the
engine has cooled.
Check the coolant level 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 overheats again, ask a
Yamaha dealer to inspect and/or repair the cooling system.
1XP7B_EE.book Page 57 Tuesday, February 4, 2014 3:40 PM