warning YAMAHA VX 2005 User Guide

2-22
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EJU21182
Engine overheat warning indicator
This model is equipped with an engine
overheat warning system.
If the engine starts to overheat, the warn-
ing light and the overheat warning indicator
blink, and then come on. The buzzer also
begins to sound intermittently, and then it
sounds continuously. After the light and indi-
cator start to blink and the buzzer sounds,
the engine speed is limited to help prevent
damage.
If this occurs, immediately reduce the
engine speed, beach the watercraft, and
then check for water discharge at the port
(left) cooling water pilot outlet. If there is no
discharge of water, check the intake grate
and impeller for clogging.
WARNING@ Before attempting to remove weeds or
debris from the intake grate or impeller,
shut the engine off and remove the clip
from the engine shut-off switch. Severe
injury or death could result from coming
in contact with the rotating parts of the
jet pump.
@
CAUTION:@ 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
engine damage.
@
NOTE:@ Press the select button 1 on the multifunc-
tion meter to stop the buzzer.
@
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3-1
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EJU17980
Fuel and oil
This watercraft is equipped with a
4-stroke engine. Conventional 2-stroke
engine oil cannot be used.
The engine utilizes an electronic fuel
injection system to deliver the optimal air-
fuel mixture ratio required by the engine.
With optimal combustion conditions, this
system is able to increase startability and
improve fuel economy.
EJU19112
Gasoline
WARNING@ GASOLINE AND ITS VAPORS ARE
HIGHLY FLAMMABLE AND EXPLOSIVE!

Do not smoke when refueling, and
keep away from sparks, flames, or
other sources of ignition.

Stop engine before refueling.

Refuel in a well-ventilated area with
the watercraft in a horizontal position.

Do not stand or sit on the watercraft
while refueling in case of fire.

Take care not to spill gasoline. If gaso-
line spills, wipe it up immediately with
dry rags. Always properly dispose of
gasoline-soaked rags.

Avoid overfilling the fuel tank. Stop fill-
ing when the fuel level reaches approx-
imately 50 mm (2 in) from the top of the
fuel tank. Fuel expands as it warms up
and could overflow if the fuel tank has
been overfilled. If temporarily leaving
the watercraft with a full fuel tank, do
not leave it in direct sunlight. Leave it
in a well-ventilated area with the water-
craft in a horizontal position.
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3-5
E
EJU13460
Pre-operation checks
EJU13470
Pre-operation check list
Before operating this watercraft, perform the checks in the following check list. See the
accompanying text in this chapter for details on how to perform the checks.
WARNING@ If any item in the pre-operation check list is not working properly, have it inspected
and repaired before operating the watercraft, otherwise an accident could occur.
@
NOTE:@ Pre-operation checks should be made thoroughly each time the watercraft is used. This pro-
cedure can be completed in a short time. It is worth the time spent to assure safety and reli-
ability.
@
ITEM ROUTINE PAGE
Engine compartment Remove the seat to ventilate the engine compartment.
Check for fuel vapors and loose electrical connections.3-6
Bilge Check for water and fuel and remove if necessary. 3-9
Stern drain plugs Check for proper installation. 3-9
Throttle lever Check that the throttle lever springs back smoothly. 3-11
Steering system Check for proper operation. 3-12
Shift lever and reverse gate
(VX110 Deluxe)Check for proper operation.
3-12
Fuel and oil Check fuel and oil levels and add if necessary.
Check the hoses and tanks for leakage.3-6, 3-7
Water separator Check for water and drain if necessary. 3-8
Battery Check electrolyte level, battery terminal connections,
breather hose connection, and battery condition.3-10
Hood Check that the hood is properly secured. 2-6
Seat Check that the seat is properly secured. 2-5
Hull and deck Check the hull and deck for cracks or other damage. 3-6
Jet unit Check for debris and remove if necessary. 3-13
Fire extinguisher Check condition and replace if necessary. 3-11
Engine shut-off cord Check condition and replace if frayed or broken. 3-13
Switches Check the start switch, engine stop switch, and engine
shut-off switch for proper operation.3-14
Cooling water pilot outlet Check that water is discharged while the engine is run-
ning and the watercraft is in the water.3-14
Multifunction meter Check for warning indications and proper operation. 3-14
UF1K70.book Page 5 Friday, November 19, 2004 2:42 PM

3-6
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EJU10480
Pre-operation check points
EJU21210
Engine compartment
Ventilate the engine compar tment before
each use.
To ventilate the engine compartment,
remove the seat. (See page 2-5 for seat
removal and installation procedures.) Leave
the engine compartment open for a few min-
utes to allow any fuel vapors to escape.
While the engine compartment is open,
check for loose electrical connections.
WARNING@ Failure to ventilate the engine compart-
ment could result in fire or explosion. Do
not start the engine if there is a fuel leak
or a loose electrical connection.
@
EJU20570
Hull and deck
Check the hull and deck for cracks or
other damage. If any damage is found, have
a Yamaha dealer repair the watercraft.
EJU21220
Fuel level
Check the fuel system for leakage,
cracks, or malfunctions before each use.
(See page 4-10 for check points and correct
procedures.)
1. Remove the fuel tank filler cap to release
any pressure that might have built up in
the fuel tank.
2. Remove the seat. (See page 2-5 for seat
removal and installation procedures.)
3. Check the fuel level in the tank and
replenish if necessary. (See page 3-4 for
filling instructions.)
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3-10
E
EJU19690
Battery
Check the battery condition and the elec-
trolyte level.
Check that the battery leads are tightened
securely and there is no corrosion on the
battery terminals.
WARNING@
The battery must always be fully
charged and in good condition. Loss
of battery power may leave you
stranded. Never operate the watercraft
if the battery does not have sufficient
power to start the engine or if it shows
any other signs of decreased power.

Be sure to connect the breather hose
to the battery. Fire or explosion could
result if the breather hose is damaged,
obstructed, or not connected properly.
@
Make sure that the battery is securely
held in place.
1
Positive (+): Red lead
2
Negative (–): Black lead
3
Breather hose
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3-11
E
EJU21240
Fire extinguisher
Check that there is a full fire extinguisher
on board. The fire extinguisher holder and
cover 1 are located in the front storage
compartment.
To store the fire extinguisher, unhook the
band 2 and remove the cover. Place the fire
extinguisher in the holder, and then place
the cover over the fire extinguisher. Fasten
the cover and the fire extinguisher with the
band securely.
NOTE:@
See the instructions supplied by the fire
extinguisher manufacturer for checking
the fire extinguisher. Always keep the
extinguisher secured in the holder with its
cover in place.

Always carry a fire extinguisher on board.
A fire extinguisher is not standard equip-
ment with this watercraft. If you do not
have one, contact a Yamaha dealer or a
fire extinguisher dealer to obtain one
meeting the proper specifications.
@
EJU18340
Throttle
Squeeze and release the throttle lever
several times to make sure that there is no
hesitation in its travel. It should be smooth
over the complete range, and spring back to
the idle position when released.
WARNING@ Before starting the engine, always check
the operation of the throttle lever.
@
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3-12
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EJU10570
Steering system
Check for looseness in the handlebars.
Turn them as far as possible to the right
and left to make sure that operation is
smooth and unrestricted throughout the
whole range. Make sure that the jet thrust
nozzle also changes directions as the han-
dlebars are turned, and that there is no free
play between the handlebars and the jet
thrust nozzle.
EJU12451
Shift lever and reverse gate
(for VX110 Deluxe)
Check for proper operation of the shift
lever and reverse gate.
Make sure that the reverse gate goes
down completely when the shift lever is
pulled up.
Also, make sure that the reverse gate
goes up completely when the shift lever is
pushed down.
WARNING@
Make sure that the throttle is com-
pletely released and that the engine is
at idle before shifting into reverse.

Do not use the reverse function to
slow down or stop the watercraft as it
could cause you to lose control, be
ejected, or impact the handlebars.

Use reverse for slow-speed maneuver-
ing only.

Make sure that there are no obstacles
or people behind you before shifting
into reverse.

Do not touch the reverse gate while the
shift lever is being operated, otherwise
you could be pinched.
@
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3-13
E
EJU10580
Jet unit
Carefully check the jet intake for weeds,
debris, or anything else that might restrict
the intake of water. If the intake is clogged,
cavitation could occur, reducing jet thrust,
and possibly damaging the jet pump.
In some cases, the engine may overheat
because of lack of cooling water, and dam-
age to the engine could result. Engine cool-
ing water is fed to the engine by the jet
pump. (See page 5-3 for jet intake cleaning
procedures.)
WARNING@
Keep away from intake grate while
engine is on. Items such as long hair,
loose clothing, or PFD straps can
become entangled in moving parts
resulting in severe injury or drowning.

Stop the engine and remove the clip
from the engine shut-off switch before
removing any debris or weeds, which
may have collected around the jet
intake.
@
EJU10590
Engine shut-off cord (lanyard)
Check that the engine shut-off cord is not
frayed or broken. If the cord is damaged,
replace it; never try to repair it or tie it
together.
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3-15
E
EJU18360
Operation
WARNING@ Before operating your watercraft,
become familiar with all controls. Con-
sult your Yamaha dealer about any con-
trol or function you do not fully
understand. Failure to understand how
controls work could cause an accident or
prevent you from avoiding an accident.
@
CAUTION:@ Make sure that the stern drain plugs are
securely tightened before launching the
watercraft.
@
EJU18072
Engine break-in
The engine break-in period is essential to
allow the various components of the engine
to wear and polish themselves to the correct
operating clearances. This ensures proper
performance and promotes longer compo-
nent life.
CAUTION:@ Be sure to check the engine oil level
before operating the watercraft for the
first time. (See page 3-7 for engine oil
checking procedures.)
@
1. Launch the watercraft and start the
engine. (See page 3-17 for engine start-
ing procedures.)
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3-17
E
EJU20841
Starting the engine
WARNING@ Never start the engine or let it run for any
length of time in an enclosed area.
Exhaust fumes contain carbon monox-
ide, a colorless, odorless gas that may
cause loss of consciousness and death
within a short time. Always operate the
watercraft in an open area.
@
1. If the lock mode of the Yamaha Security
System is selected (for VX110 Deluxe),
use the remote control transmitter to
select the unlock mode. (See page 2-15
for Yamaha Security System and low-
RPM mode selection procedures.)
2. Launch the watercraft in water free from
weeds and debris and at least 60 cm
(2 ft) deep.
WARNING@ Never operate in water that is less than
60 cm (2 ft) deep, otherwise you increase
your chance of hitting a submerged
object, which could result in injury.
@
CAUTION:@ Never operate in water that is less than
60 cm (2 ft) deep, otherwise pebbles or
sand could be sucked into the jet intake,
causing impeller damage or engine over-
heating.
@
UF1K70.book Page 17 Friday, November 19, 2004 2:42 PM