Features and functions
44
Fuel consumption per hour
This display shows the current fuel consump-
tion in gallons per hour “G/HR” or liters per
hour “L/HR”.
Fuel consumption per kilometer/mile
This display shows the current fuel consump-
tion in gallons per mile “G/MILE” or liters per
kilometer “L/KM”.
NOTE:
The actual fuel consumption varies depend-
ing on the operating conditions. Use this func-
tion as a reference only.
Water temperature
This display shows the ambient water temper-
ature “L TEMP” (lake temperature).
Air temperature
This display shows the ambient air tempera-
ture “E TEMP” (environmental temperature).
Average speed/Tripmeter/Trip timer
modes
Average speed, distance traveled, and trip
time are recorded once measurements have
started, regardless of the current display.
To start the measurements, push the
“Start/Stop” button for less than 1 second.
The beeper sounds once.
To stop the measurements, push the
“Start/Stop” button for less than 1 second.
The beeper sounds once. To restart the mea-
surements, push the “Start/Stop” button for
less than 1 second. The beeper sounds once.
To reset the displays, push the “Mode/Reset”
button for at least 2 seconds while the mea-
UF1X71E0.book Page 44 Tuesday, September 26, 2006 9:52 AM
Operation
49
EJU31820
Fuel and oil
This watercraft is equipped with a 4-stroke en-
gine. Conventional 2-stroke engine oil cannot
be used.
The engine utilizes an electronic fuel injection
system to deliver the optimal air-fuel ratio re-
quired by the engine. By ensuring the optimal
combustion conditions, this system is able to
increase startability and improve fuel econo-
my.
EJU36330Gasoline
WARNING
EWJ00280
GASOLINE AND ITS VAPORS ARE HIGH-
LY FLAMMABLE AND EXPLOSIVE!
Do not smoke when refueling, and keep
away from sparks, flames, and other
sources of ignition.
Stop the 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 approxi-
mately 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 watercraft
in a horizontal position.
Tighten the fuel tank filler cap securely
after refueling.
If you should swallow some gasoline, in-
hale a lot of gasoline vapor, or get gaso-
line in your eyes, get immediate medical
attention.
If any gasoline spills on your skin or
clothing, immediately wash the affected
area with soap and water and change
your clothes.
CAUTION:
ECJ00320
Do not use leaded gasoline. Leaded gas-
oline can seriously damage the catalytic
converter.
Use only fresh gasoline that has been
stored in clean containers.
EJU31860Gasohol
There are two types of gasohol: gasohol con-
taining ethanol and that containing methanol.
Gasohol containing ethanol can be used if
ethanol content does not exceed 10% and the
fuel meets the minimum octane ratings.
Gasohol containing methanol is not recom-
mended by Yamaha because it can cause
fuel system damage and engine performance
problems.Recommended gasoline:
Regular unleaded gasoline with a mini-
mum octane rating of
86 (Pump octane number) = (R +
M)/2
90 (Research octane number)
UF1X71E0.book Page 49 Tuesday, September 26, 2006 9:52 AM
Operation
51
EJU31980
Pre-operation checks EJU31990Pre-operation check list
Before operating this watercraft, perform the checks in the following check list. See the accom-
panying text in this chapter for details on how to perform the checks.
WARNING
EWJ00410
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.
ITEM ROUTINE PAGE
BEFORE LAUNCH OR OPERATION
Engine compartmentRemove the seats to ventilate the engine compart-
ment. Check for fuel vapors and loose electrical con-
nections.53
BilgeCheck for water and fuel and drain if necessary. 54
Stern drain plugsCheck for proper installation. 55
Throttle leverCheck that the throttle lever springs back smoothly. 57
Steering systemCheck for proper operation.
Check that the handlebars are locked in place.57
Shift lever and reverse gateCheck for proper operation. 57
QSTSCheck for proper operation. 58
Fuel and oilCheck the fuel and oil levels and replenish if neces-
sary.
Check the hoses and tanks for leakage.53, 53
Water separatorCheck for water and drain if necessary. 54
BatteryCheck the electrolyte level and battery condition. 55
HoodCheck that the hood is securely closed. 25
Front and rear seatsCheck that the seats are securely installed. 24
Hull and deckCheck the hull and deck for cracks and other dam-
age.53
Jet intakeCheck for debris and remove if necessary. 59
Fire extinguisherCheck the condition and replace if necessary. 56
Engine shut-off cordCheck the condition and replace if frayed or broken. 59
SwitchesCheck the start switch, engine stop switch, and en-
gine shut-off switch for proper operation.60
AFTER LAUNCH
Cooling water pilot outletCheck that water is discharged while the engine is
running and the watercraft is in the water.60
Multifunction information
centerCheck for warning indications and proper operation. 60
UF1X71E0.book Page 51 Tuesday, September 26, 2006 9:52 AM
Operation
72
put until you apply throttle again or you reach
trolling speed.
EJU33290Stopping the watercraft
The watercraft is not equipped with a sepa-
rate braking system. It is stopped by water re-
sistance when the throttle lever is released.
From full speed, the watercraft comes to a
complete stop in approximately 100 m (330 ft)
after the throttle lever is released or the en-
gine is stopped, although this distance will
vary depending on many factors, including
gross weight, water surface conditions, and
wind direction. The watercraft slows down as
soon as the throttle lever is released, but will
coast for a distance before fully stopping. If
you are not sure you can stop in time before
hitting an obstacle, apply throttle and turn in
another direction.
WARNING
EWJ00740
Allow adequate stopping distance.
Take early action to avoid collisions. Re-
member, watercraft and other boats do
not have brakes.
Operate defensively at safe speeds and
keep a safe distance away from people,
objects, and other watercraft to give you
time to stop.
Do not shut the engine off when slowing
down in case you need engine power tosteer away from a boat or other obstacle
that comes into your path.
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.
EJU35960Beaching the watercraft
(1) Make sure that there are no boats, swim-
mers, or obstacles near the beach. Re-
lease the throttle lever about 100 m (330
ft) before you reach the intended beach-
ing area.
(2) Approach the beach slowly and stop the
engine before reaching land.
Remember, you need throttle to steer.
(3) Get off the watercraft and pull it up on the
beach.
CAUTION:
ECJ00490
Small pebbles, sand, seaweed, and other
debris can be sucked into the jet intake
and impair or damage the impeller. Always
stop the engine and get off the watercraft
before beaching it.
EJU36060Docking the watercraft
(1) Make sure that there are no boats, swim-
mers, or obstacles near the watercraft.
Reduce speed about 100 m (330 ft) away
from the dock.
(2) Slowly approach the dock and stop the
engine just before coming alongside it.
EJU33320Reverse on waterways
Reverse can be used for slow-speed maneu-
vering when it is necessary to back up out of
tight spots where you cannot turn around. Re-
verse can be used to slow down or stop only
during slow-speed maneuvering, such as
when docking.
UF1X71E0.book Page 72 Tuesday, September 26, 2006 9:52 AM
Maintenance and care
79
(5) Wipe all vinyl and rubber components,
such as the seat and engine compart-
ment seals, with a vinyl protectant.EJU33761
Maintenance and adjustments
Periodic inspection, adjustment, and lubrica-
tion will keep your watercraft in the safest and
most efficient condition possible. Safety is an
obligation of the watercraft owner. Proper
maintenance must be carried out to keep the
exhaust emission and sound levels within the
regulated limits. The most important points of
watercraft inspection, adjustment, and lubri-
cation are explained on the following pages.
See a Yamaha dealer for genuine Yamaha re-
placement parts and optional accessories de-
signed for your watercraft.
Remember, failures that are the result of the
installation of parts or accessories which are
not qualitatively equivalent to genuine
Yamaha parts are not covered by the limited
warranty.
Maintenance, replacement, or repair of the
emission control devices and system may
be performed by any marine SI engine re-
pair establishment or individual. Warranty
repair, however, must be performed at an
authorized Yamaha marine dealership.
WARNING
EWJ00310
Be sure to shut the engine off when you
perform maintenance unless otherwise
specified, otherwise an accident or inju-
ry could result from unexpected opera-
tion, moving parts, or electric shock. If
the owner is not familiar with watercraft
servicing, this work should be done by a
Yamaha dealer. Improperly serviced
components could fail or stop operating
correctly, which could result in an acci-
dent.
Modifications to this watercraft not ap-
proved by Yamaha may cause loss of
performance or excessive noise and ex-
haust emissions, or render it unsafe for
UF1X71E0.book Page 79 Tuesday, September 26, 2006 9:52 AM
Maintenance and care
84
CAUTION:
ECJ00190
If oil is leaking or the oil pressure warning
indicator comes on when the engine is
running, immediately shut the engine off
and have a Yamaha dealer check the wa-
tercraft. Continuing to operate the engine
under such conditions could cause severe
engine damage.
EJU34300Checking the air filter element
The air filter element should be checked every
12 months or every 100 hours of operation.
To check the air filter element:
(1) Remove the seats. (See page 24 for seat
removal and installation procedures.)
(2) Remove the air filter case cover screws,
slide the locks open, and then remove the
air filter case cover.
(3) Remove the air filter element and check it
for dirt and oil. Replace the air filter ele-ment if there is any oil buildup, or every 2
years or every 200 hours of operation.
(4) Install the air filter element in the air filter
case, and then install the air filter case
cover.
(5) Install the seats.
CAUTION:
ECJ00200
Make sure that the air filter element is in-
stalled in the air filter case properly.
Do not start the engine with the air filter
element removed, otherwise the pistons
and cylinders could be damaged.
If cleaning the air filter element, use cold
or lukewarm water and let it air dry com-
pletely. Do not use detergent or solvent
to clean the air filter element, or dry it
with hot or compressed air, otherwise it
could be damaged.
1Air filter case cover screw
2Lock
UF1X71E0.book Page 84 Tuesday, September 26, 2006 9:52 AM
Maintenance and care
86
EJU34381Cleaning and adjusting the spark
plugs
The spark plug is an important engine compo-
nent and is easy to inspect. The condition of
the spark plug can indicate something about
the condition of the engine. For example, if
one spark plug has a distinctly different color,
the engine could require servicing. Do not at-
tempt to diagnose any problems yourself.
Have a Yamaha dealer service the watercraft.
Remove and inspect the spark plugs periodi-
cally; heat and deposits will cause the spark
plugs to slowly break down and erode. If elec-
trode erosion becomes excessive, or if carbon
and other deposits are excessive, replace the
spark plug with the specified plug.
To remove a spark plug:
(1) Remove the air filter case cover and air
filter element. (See page 84 for air filter
element removal and installation proce-
dures.)
(2) Remove the spark plug cap.
CAUTION:
ECJ00210
Do not use any tools to remove or install
the spark plug cap, otherwise the ignition
coil coupler could be damaged. The spark
plug cap may be difficult to remove be-
cause the rubber seal on the end of the
cap fits tightly. To remove the spark plug
cap, simply twist it back and forth while
pulling it up; to install it, twist it back and
forth while pushing it down.
(3) Remove the spark plug.
Measure the spark plug gap with a wire
thickness gauge. Replace the spark plugor adjust the gap to specification if neces-
sary.
To install a spark plug:
(1) Clean the gasket surface.
(2) Wipe any dirt from the threads of the
spark plug.
(3) Install the spark plug, and then tighten it
to the specified torque.
(4) Install the spark plug cap.
NOTE:
Wipe off any water on the spark plug or in-
side the spark plug cap before installing the
cap. Push the spark plug cap down until it is
securely installed.
If a torque wrench is not available when you
are installing a spark plug, a good estimate
of the correct torque is 1/4 turn to 1/2 turn
past finger tight using the spark plug
wrench included in the tool kit. Have the
spark plug adjusted to the correct torque
with a torque wrench as soon as possible.
Specified spark plug:
CR9EB
1Spark plug gap
Spark plug gap:
0.7–0.8 mm (0.028–0.031 in)
Spark plug tightening torque:
12.5 Nm (9.2 ft-lb) (1.27 kgf-m)
UF1X71E0.book Page 86 Tuesday, September 26, 2006 9:52 AM