2021 YAMAHA VX engine

Control function operation
27
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.
EJU46190Start switch “ ” (VX-C)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 startin 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
will not start. Also, the starter motor could
be damaged.
[ECJ01041]
The engine will not start under any of the fol-
lowing conditions:
Clip is removed from the engine shut-off
switch.
Throttle lever is squeezed.
Throttle lever is malfunctioning.EJU31212Throttle lever
The throttle lever increases the engine speed
when the lever is squeezed.
The throttle lever returns automatically to its
fully closed (idle) position when released.
1 Engine shut-off switch
2 Clip
3 Engine shut-off cord (lanyard)
1
2
3
1Start switch
1 Throttle lever
START
1
1
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Control function operation
28
EJU43342RiDE lever (VX / VX DELUXE /
VX CRUISER / VX LIMITED)
When the RiDE lever is squeezed, the reverse
gate lowers and the watercraft starts moving
in reverse. If the watercraft is moving forward,
the watercraft gradually slows down until it
stops, and then the watercraft starts moving
in reverse.
When the RiDE lever is released, it automati-
cally returns to its fully closed (idle) position
and the reverse gate moves to the neutral po-
sition.
EJU31262Steering system
By turning the handlebars in the direction you
wish to travel, the angle of the jet thrust noz-
zle is changed, and the direction of the water-
craft is changed accordingly.Since the strength of the jet thrust determines
the speed and degree of a turn, throttle must
always be applied when attempting a turn,
except at trolling speed.
This model is equipped with the Yamaha En-
gine Management System (YEMS) that in-
cludes an off-throttle steering (OTS) system.
It will activate at planing speeds should you
attempt to steer the watercraft after releasing
the throttle lever. The OTS system assists in
turning by continuing to supply some thrust
while the watercraft is decelerating, but you
can turn more sharply if you apply throttle
while turning the handlebars. The OTS sys-
tem does not function below planing speeds
or when the engine is off. Once the engine
slows down, the watercraft will no longer turn
in response to handlebar input until you apply
throttle again or you reach trolling speed.
EJU35975Cooling water pilot outlet
When the engine is running, some of the
cooling water that is circulated in the engine
is discharged from the cooling water pilot
outlet.
There is a cooling water pilot outlet on the
port (left) side of the watercraft. To check for
proper operation of the cooling system, make
sure that water is being discharged from the
cooling water pilot outlet. If water is not being
discharged from the outlet, stop the engine
1
RiDE lever
1 Handlebar
2 Jet thrust nozzle
1
1
2
1 Cooling water pilot outlet
1
UF4N70E0.book Page 28 Tuesday, October 6, 2020 5:13 PM

Control function operation
29
and check the jet intake for clogging. (See
page 107 for information on the jet intake.)
TIP:
It will take about 60 seconds for the water
to reach the outlet after the engine is start-
ed.
Water discharge may not be constant
when the engine is running at idling speed.
If this occurs, apply a little throttle to make
sure that water discharges properly.
EJU40323Water separator
The water separator prevents water from en-
tering the fuel tank by collecting any water
that has entered the fuel tank breather hose if
the watercraft was capsized.
If water has collected in the water separator,
drain it by loosening the drain screw.
To drain water from the water separator:
(1) Place a drain pan or dry cloth under thewater separator.
(2) Gradually loosen the drain screw to drain the water. Catch the draining water in the
drain pan or soak it up with the dry cloth
so that it does not spill into the engine
compartment. If any water spills into the
watercraft, be sure to wipe it up with a
dry cloth.
(3) Securely tighten the drain screw until it stops.
1Water separator
2 Drain screw
1
2
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Watercraft operation
30
EJU40014
Watercraft operation functions
EJU43155Shift system (VX / VX DELUXE /
VX CRUISER / VX LIMITED)
EWJ01773
Make sure that there are no obstacles or
people behind you before shifting into
reverse.
Do not touch the reverse gate while the
RiDE lever is being operated, otherwise
you could be pinched.
If the RiDE lever and throttle lever are
being operated at the same time, do not
release only the RiDE lever. Otherwise,
the watercraft could accelerate more
quickly than expected, which may lead
to an accident.
The RiDE lever and throttle lever can be oper-
ated to change the forward or rearward
movement of the watercraft only when the
engine is running. When the RiDE lever is
squeezed, the reverse gate lowers and de-
flects the water jet being discharged from the
jet thrust nozzle so that the watercraft moves
in reverse or is in neutral. When the throttle le-
ver is squeezed, the reverse gate rises and
the watercraft moves forward.
TIP:
This model is equipped with a function
which limits the engine speed in reverse.
When the engine is started, the reverse
gate automatically moves to the neutral po-
sition.
To shift into reverse:
(1) Release the throttle lever.
(2) Squeeze the RiDE lever. The reverse gate will lower, the engine speed will in-
crease, the watercraft will start moving in reverse, and the “R” (reverse) shift indi-
cator will be displayed.
VX
1 RiDE lever
1 Reverse gate
2 Reverse position
1 “R” (Reverse position)
1
1
2
1
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Watercraft operation
31
VX DELUXE / VX CRUISER / VX LIMITED
To shift into neutral from reverse:
Release the RiDE lever. The reverse gate will
automatically return to the neutral position
and the “N” (neutral) shift indicator will be dis-
played.VX
VX DELUXE / VX CRUISER / VX LIMITED
TIP:
Although the neutral position helps keep the
watercraft from moving even when the en-
gine is running, some movement may occur.
To shift into forward:
(1) Release the RiDE lever.
(2) Squeeze the throttle lever. The reverse
gate will rise completely, the engine
speed will increase, the watercraft will
1“R” (Reverse position)
1 RiDE lever
1 Reverse gate
2 Neutral position
14.3V
km/h
RPM
1
1
1
2
1“N” (Neutral position)
1 “N” (Neutral position)
1
14.3V
km/h
RPM
1
UF4N70E0.book Page 31 Tuesday, October 6, 2020 5:13 PM

Watercraft operation
33
(2) Lightly squeeze and release the RiDE le-ver. The “N” (neutral) shift indicator will
be displayed.
VX
VX DELUXE / VX CRUISER / VX LIMITED
TIP:
If the RiDE lever is squeezed continuously,
the reverse gate will move to the reverse po-
sition.
EJU40003
Watercraft operation modes
(VX DELUXE / VX CRUISER / VX LIMITED)
EJU45891Reverse assist
The reverse assist is a function for temporar-
ily increasing the engine speed when moving
in reverse, such as to enter the water
smoothly when launching the watercraft from
a trailer.
This function operates after the engine is
started and only if the watercraft is not shifted
into forward.
TIP:
Once the watercraft is shifted into forward af-
ter the engine is started, the reverse assist
cannot be operated.
Activating and deactivating the reverse
assist
The activation of the reverse assist can be
confirmed by the reverse assist indicator on
the multifunction information center.
To activate the reverse assist:
(1) Start the engine.
(2) Squeeze the RiDE lever to the fully open
position, and then push the upper side of
the “SPEED ADJUST” switch. Once the
beeper sounds three times and the re-
1“N” (Neutral position)
1 “N” (Neutral position)
1
14.3V
km/h
RPM
1
1 Reverse assist indicator
2 Reverse assist level
14.3V
km/h
RPM
Rever se Assist +2
21
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Watercraft operation
34
verse assist indicator is displayed, the
engine speed will increase. The engine
speed can be adjusted to two levels: +1
and +2.
To deactivate the reverse assist:
Perform one of the following operations. The
beeper sounds two times and the reverse as-
sist indicator disappears when the reverse
assist is deactivated.
Relax your grip on the RiDE lever.
Push the lower side of the “SPEED AD-
JUST” switch when the reverse assist level
is set to +1.
Squeeze the throttle lever.EJU46280T.D.E. (thrust directional enhancer)
The T.D.E. is a function for slightly lifting or
lowering the reverse gate from the neutral po-
sition to operate the watercraft at very low speeds when the engine is running at idling
speed.
This function can be used only when the wa-
tercraft is in neutral.
Activating and deactivating the T.D.E.
The activation of the T.D.E. can be confirmed
by the T.D.E. indicator on the multifunction
information center.
To activate the T.D.E.:
(1) Shift into neutral.
(2) Push the upper side of the “T.D.E.”
switch to move forward at a very low
speed or push the lower side of the
“T.D.E.” switch to move in reverse at a
very low speed.
1RiDE lever
1 “SPEED ADJUST” switch
1
1
1T.D.E. indicator
2 Forward operation at a very low speed
3 Reverse operation at a very low speed
1 “T.D.E.” switch
14.3V
MPH
RPM
T.D.E. FORWARD
T.D.E. REVERSE T.D.E. FORWARD
1
3
2
1
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Watercraft operation
35
TIP:
While the T.D.E. is activated, the “N” (neutral)
shift indicator will be displayed and “0” will be
displayed on the speedometer.
To deactivate the T.D.E.:
Perform one of the following operations. The
T.D.E. indicator disappears and the T.D.E. is
deactivated.
Squeeze the throttle lever.
Squeeze the RiDE lever.
Push and hold the “CRUISE/NO WAKE”
switch.
While moving forward at a very low speed,
push the lower side of the “T.D.E.” switch.
While moving in reverse at a very low
speed, push the upper side of the “T.D.E.”
switch.
TIP:
The T.D.E. is also deactivated when the en-
gine is stopped.
EJU46420No-wake mode
The no-wake mode is a function that main-
tains the engine speed at a fixed setting for
operating the watercraft at low speeds.
This function can be used only when the wa-
tercraft is in neutral, or when the watercraft is
shifted into forward and the engine is operat-
ing at idling speed.
TIP:
If the no-wake mode is activated when the
watercraft is in neutral, the watercraft will au-
tomatically shift into forward and the water-
craft will start moving at a low speed.Activating and deactivating the no-wake
mode
The activation of the no-wake mode can be
confirmed by the no-wake mode indicator on
the multifunction information center.
To activate the no-wake mode:
(1) Shift into neutral, or release the throttle
lever and let the engine speed return to
idle.
(2) Push and hold the “CRUISE/NO WAKE” switch. Once the beeper sounds three
times and the no-wake mode indicator is
displayed, the no-wake mode is activat-
ed.
To deactivate the no-wake mode:
Perform one of the following operations. The
beeper sounds two times and the no-wake
mode indicator disappears when the no-
wake mode is deactivated.
1 No-wake mode indicator
1 “CRUISE/NO WAKE” switch
14.3V
km/h
RPM
No Wake
1
1
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