engine overheat YAMAHA V1 2015 Owners Manual

Control function operation
25
EJU31026
Watercraft control functionsEJU31153Engine stop switch “ ”
The engine stop switch (red button) stops the
engine when the switch is pushed.
EJU31164Engine shut-off switch “ ”
The engine shut-off switch automatically
stops the engine when the clip, on the end of
the engine shut-off cord (lanyard), is removed
from the switch, such as if the operator falls
off the watercraft.
Insert the clip under the engine shut-off
switch before starting the engine.
When the engine is not running, remove the
clip from the engine shut-off switch to pre-vent accidental starting or unauthorized op-
eration by children or others.
EJU43560Start switch “ ”
NOTICE
ECJ01311
Do not run the engine over 4000 r/min on
land. Also, do not run the engine for more
than 15 seconds without supplying water,
otherwise the engine could overheat.
The start switch (green button) starts the en-
gine when the switch is pushed.
Release the start switch as soon as the en-
gine starts to run. If the engine does not start
in 5 seconds, release the start switch, wait 15
seconds, and then try again. NOTICE: Never
push the start switch while the engine is
running. Do not operate the start switch
for more than 5 seconds, otherwise the
battery will be discharged and the engine
1Engine stop switch
1Engine shut-off switch
2Clip
3Engine shut-off cord (lanyard)
1
STOP
312
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Instrument operation
29
EJU43570
Multifunction information
center
The multifunction information center displays
various watercraft information.
Multifunction information center initial op-
eration
When the multifunction information center is
activated, all of the display segments come
on. After 2 seconds, the warning indicators in
the information display go off, and then the
center starts to operate normally.
If only the multifunction information center is
activated, the “WARNING” indicator light
blinks once.
Multifunction information center standby
state
If the multifunction information center does
not receive any operation input within 25 sec-
onds after the engine stops, the center will
turn off and enter a standby state. When the
engine is started again, the displays return to
their state before the center turned off, and
then the center starts to operate normally.
EJU35025Information display
The information display shows watercraft op-
erating conditions.
EJU31504Speedometer
The speedometer shows the watercraft
speed against water.
By switching the display units, the speed can
be shown in kilometers per hour “km/h” or
miles per hour “mph”.
TIP:
“mph” is selected as the display unit at the
Yamaha factory.
1Select button
2Information display
3“WARNING” indicator light
123
1Tachometer
2Speedometer
3Hour meter/voltmeter
4Fuel level meter
5Check engine warning indicator
6Engine overheat warning indicator
7Oil pressure warning indicator
8Fuel level warning indicator
1Speedometer
1234
8765
1
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Instrument operation
32
TIP:
Push the select button on the multifunction
information center to stop the buzzer.
EJU31627Oil pressure warning
If the oil pressure drops significantly, the oil
pressure warning indicator and the “WARN-
ING” indicator light blink, and the buzzer
sounds intermittently. At the same time, the
maximum engine speed is limited.
If the oil pressure warning is activated, imme-
diately reduce the engine speed, return to
shore, and then check the engine oil level.
(See page 42 for information on checking the
engine oil level.) If the oil level is sufficient,
have a Yamaha dealer check the watercraft.
TIP:
Push the select button on the multifunction
information center to stop the buzzer.
EJU3160AEngine overheat warning
If the engine temperature rises significantly,
the engine overheat warning indicator and
the “WARNING” indicator light blink, and the
buzzer sounds intermittently. Then, the en-
gine overheat warning indicator and the
“WARNING” indicator light stop blinking and
remain on, and the buzzer sounds continu-ously. At the same time, the maximum engine
speed is limited.
If the engine overheat warning is activated,
immediately reduce the engine speed, return
to shore, and then make sure that water is
being discharged from the cooling water pilot
outlet while the engine is running. If there is
no discharge of water, stop the engine, and
then check the jet intake for clogging. (See
page 82 for information on the jet intake.)
NOTICE: If you cannot locate and correct
the cause of the overheating, consult a
Yamaha dealer. Continuing to operate at
higher speeds could result in severe en-
gine damage.
[ECJ00042]
TIP:
Push the select button on the multifunction
information center to stop the buzzer.
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Pre-operation checks
53
falls off, allowing the watercraft to contin-
ue to run and cause an accident.
[EWJ01221]
EJU40692
Switch checks
NOTICE
ECJ01311
Do not run the engine over 4000 r/min on
land. Also, do not run the engine for more
than 15 seconds without supplying water,
otherwise the engine could overheat.
Check the start switch, the engine stop
switch, and the engine shut-off switch for
proper operation. (See pages 25 to 25 for in-
formation on operating each switch.)
To check the operation of the switches:
(1) Push the start switch to make sure that
the engine starts.(2) As soon as the engine starts running,
push the engine stop switch to make
sure that the engine stops immediately.
(3) Restart the engine, and then pull the en-
gine shut-off cord (lanyard) to remove
the clip from the engine shut-off switch
to make sure that the engine stops im-
mediately.
EJU40102Storage compartment checks
Make sure that the storage compartments
are not damaged and that water has not col-
lected in the compartments. (See page 36 for
information on the storage compartments.)
EJU41082Fire extinguisher holder, cover, and band
checks
Make sure that the fire extinguisher holder,
cover, and band are not damaged and that
the cover is securely held in place using the
band. (See page 38 for information on the fire
extinguisher holder, cover, and band.)
EJU32544Fire extinguisher check
Check that there is a full fire extinguisher on
board.
To check the fire extinguisher, see the in-
structions supplied by the fire extinguisher
manufacturer. Always keep the fire extin-
guisher secured in the holder with its cover in
place.
Always carry a fire extinguisher on board. A
fire extinguisher is not standard equipment
1Engine shut-off switch
2Clip
3Start switch
4Engine stop switch
5Engine shut-off cord (lanyard)
123
4
5
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Operation
57
EJU40212Riding position
Operator riding position
The operator should grip the handlebars firm-
ly with both hands and sit astride the seat
with both feet on the floor of the footwell.
Passenger riding position
The passenger(s) should hold on firmly, either
to the person in front of them or to the hand-
grip provided, and sit astride the seat with
their feet on the floor of the footwell. Never al-
low a passenger to ride in front of the opera-
tor. (See page 17 for information on the riding
position when pulling a wakeboarder or wa-
ter-skier.)
EJU32803Launching the watercraft
When launching the watercraft, make sure
that there are no obstacles around you.
If the watercraft is launched from a trailer,
someone should make sure that waves do
not push the watercraft into the trailer.
EJU43580Starting the engine on water
WARNING
EWJ01531
Do not apply throttle when anyone is at the
rear of the watercraft. Turn the engine off
or keep it at idle. Water and debris exiting
the jet thrust nozzle can cause severe in-
jury.
To start the engine:
(1) Move the watercraft to an area that is
free from weeds and debris, and has a
water depth of at least 60 cm (2 ft) from
the bottom of the watercraft. NOTICE:
Never run the engine in water that is
less than 60 cm (2 ft) deep from the
bottom of the watercraft, otherwise
pebbles or sand could be sucked into
the jet intake, causing impeller dam-
age and engine overheating.
[ECJ00473]
(2) Attach the engine shut-off cord (lanyard)
to your left wrist, and then attach the clip
to the engine shut-off switch. (See page
25 for information on operating the en-
gine shut-off switch.) WARNING! Check
that the engine shut-off cord (lanyard)
is attached correctly. If the engine
shut-off cord (lanyard) is not attached
correctly, it may not pull free when the
operator falls off, allowing the water-
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Operation
62
Make sure that there are no obstacles or peo-
ple behind you before shifting into reverse.
EJU36087Boarding the watercraft
WARNING
EWJ01112
Be sure the operator and any passengers
have practiced boarding from the water
while still close to shore before riding. A
person who has made many unsuccessful
attempts to get back on the watercraft
may become fatigued and suffer from ex-
posure, increasing the risk of injury and
drowning.
Board the watercraft in water free from
weeds and debris and at least 60 cm (2 ft)
deep from the bottom of the watercraft.
NOTICE: Never run the engine in water
that is less than 60 cm (2 ft) deep from the
bottom of the watercraft, otherwise peb-
bles or sand could be sucked into the jet
intake, causing impeller damage and en-
gine overheating.
[ECJ00473]
TIP:
V1 Sport: This watercraft is equipped with a
reboarding step, which can be lowered and
used to assist in reboarding. (See page 35 for
information on operating the reboarding
step.)
EJU36354Boarding alone
(1) From the rear of the watercraft, place
both hands on the boarding platform,
pull yourself up, and then grasp the
handgrip with one hand.
(2) Pull yourself up to a kneeling position on
the boarding platform, and then move to
the seat and sit astride.
(3) Attach the engine shut-off cord (lanyard)
to your left wrist, and then attach the clip
to the engine shut-off switch.
60 cm (2 ft)
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Operation
65
senger crawl onto the seat while main-
taining their balance.
(7) Have the second passenger sit astride
the seat, place their feet on the floor of
the footwell, securely hold on to the per-
son in front of them or to the handgrip
provided, and balance there.
(8) Make sure that the passenger(s) have
their feet on the floor of the footwell and
are securely holding on to the person in
front of them or to the handgrip provided,
and then gradually increase the speed to
balance the watercraft.
EJU33083Starting off
WARNING
EWJ00712
To avoid collisions:
Scan constantly for people, objects, and
other watercraft. Be alert for conditions
that limit your visibility or block your vi-
sion of others.
Operate defensively at safe speeds and
keep a safe distance away from people,
objects, and other watercraft.
Do not follow directly behind watercraft
or other boats. Do not go near others to
spray or splash them with water. Avoid
sharp turns or other maneuvers that
make it hard for others to avoid you or
understand where you are going. Avoid
areas with submerged objects or shal-
low water.
Take early action to avoid collisions. Re-
member, watercraft and other boats do
not have brakes. Do not release the
throttle lever when trying to steer away
from objects—you need throttle to
steer.
NOTICE
ECJ01341
Never run the engine in water that is less
than 60 cm (2 ft) deep from the bottom of
the watercraft, otherwise pebbles or sand
could be sucked into the jet intake, caus-
ing impeller damage and engine overheat-
ing.
EJU40593Starting off from a trailer
V1:
(1) Launch the watercraft, and then turn it
around so that the bow faces the direc-
tion you wish to go.
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Operation
67
which can result in severe damage.
[ECJ00542]
(3) Start the engine and operate the water-
craft at planing speed to drain the bilge
water from the engine compartment.
(See page 43 for information on draining
the bilge water. If the engine does not
start, see “Towing the watercraft” on
page 85 or “Submerged watercraft” on
page 85.) NOTICE: Do not run the en-
gine at full throttle for at least 1 minute
after the engine has been restarted.
Bilge water in the engine compart-
ment can splash into the engine,
which can result in severe damage.
[ECJ00554]
EJU35963
Beaching and docking the watercraft
To beach the watercraft:
(1) Make sure that there are no boats, swim-
mers, or obstacles near the beach.(2) Release the throttle lever to reduce
speed about 100 m (330 ft) before you
reach the intended beaching area.
(3) Slowly approach the beach and stop the
engine just before reaching land.
WARNING! You need throttle to steer.
Shutting the engine off can cause you
to hit an obstacle you are attempting
to avoid. A collision could result in se-
vere injury or death.
[EWJ00602] NOTICE:
Never run the engine in water that is
less than 60 cm (2 ft) deep from the
bottom of the watercraft, otherwise
pebbles or sand could be sucked into
the jet intake, causing impeller dam-
age and engine overheating.
[ECJ00473]
( 4 ) G e t o f f t h e w a t e r c r a f t a n d p u l l i t u p o n t h e
beach.
To dock the watercraft:
(1) Make sure that there are no boats, swim-
mers, or obstacles near the dock.
(2) Release the throttle lever to reduce
speed about 100 m (330 ft) away from
the dock.
(3) Slowly approach the dock and stop the
engine just before coming alongside it.
WARNING! You need throttle to steer.
Shutting the engine off can cause you
to hit an obstacle you are attempting
to avoid. A collision could result in se-
vere injury or death.
[EWJ00602]
(4) Come alongside the dock and get off the
watercraft.
EJU37194Operating in weeded areas
Always avoid using your watercraft in areas
where weed growth is thick. If operating in
weeded areas is unavoidable, alternately
squeeze the throttle lever and relax your grip
on the throttle lever to vary the engine speed.
Weeds tend to become clogged more when
operating at a steady speed and at trolling
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Operation
68
speed. If weeds may have clogged the intake
area, clean the jet intake. (See page 82 for in-
formation on the jet intake.)
EJU40242After removing the watercraft from
the water
NOTICE
ECJ01311
Do not run the engine over 4000 r/min on
land. Also, do not run the engine for more
than 15 seconds without supplying water,
otherwise the engine could overheat.
After operating and removing the watercraft
from the water, promptly discharge the re-
maining water from the cooling water pas-
sages.
To discharge water from the cooling water
passages:
(1) Make sure that the area around the wa-
tercraft is clear, and then start the en-
gine.
(2) Discharge the remaining water out of the
cooling water passages by alternately
squeezing and releasing the throttle lever
quickly for 10 to 15 seconds.
(3) Stop the engine.
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Care and storage
69
EJU37146
Post-operation care
WARNING
EWJ00331
Always place the watercraft upright in a
horizontal position when storing it, other-
wise fuel could leak out into the engine or
engine compartment, which could create
a fire hazard.
After using the watercraft, always take it out
of the water, clean it, and store it. Leaving the
watercraft in the water for extended periods
will accelerate the rate of normal deteriora-
tion of the jet pump and hull. Marine organ-
isms and corrosion are some of the
conditions that can shorten the life of many
watercraft components.
EJU33548Flushing the cooling water passages
NOTICE
ECJ01311
Do not run the engine over 4000 r/min on
land. Also, do not run the engine for more
than 15 seconds without supplying water,
otherwise the engine could overheat.
Flush the cooling water passages to prevent
them from clogging with salt, sand, or dirt.
(1) Place the watercraft in a horizontal posi-
tion.
(2) Remove the seat. (See page 34 for seat
removal and installation procedures.)(3) Connect the garden hose adapter to a
garden hose.
(4) Loosen the flushing hose connector cap
and remove it. Insert the garden hose
adapter into the flushing hose connector
and turn it until it is securely connected.
(5) Connect the garden hose to a water tap.
(6) Make sure that the area around the wa-
tercraft is clear, and then start the en-
gine. Immediately after the engine starts,
fully turn the water supply on so that wa-
1Garden hose adapter
1Garden hose adapter
2Flushing hose connector
3Flushing hose connector cap
321
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