water pump YAMAHA XL 700 2002 Owners Manual

1-14
E
EJU01003
Hazard information

When transporting or storing your water-
craft, always place the fuel cock knob in
the “OFF” position, otherwise gasoline
may overflow from the carburetor.

Never start the engine or let it run for any
length of time in an enclosed area.
Exhaust fumes contain carbon monoxide,
a colorless, odorless gas that may cause
loss of consciousness and death within a
short time. Always operate the watercraft
in an open area.
EJU01004
Watercraft characteristics

Jet thrust turns the watercraft. Releasing
the throttle completely produces only min-
imum thrust. If you are traveling at speeds
above trolling, you will have rapidly
decreasing ability to steer without throttle.
You may still have some turning ability
immediately after releasing the throttle,
but once the engine slows down, the
watercraft will no longer respond to han-
dlebar input until you open the throttle
again or you reach a trolling speed. Prac-
tice turning in an open area without
obstructions until you have a good feel for
this maneuver.

This watercraft are water-jet propelled.
The jet pump is directly connected to the
engine. This means that jet thrust will pro-
duce some movement whenever the
engine is running. There is no “neutral”
position.
UF0M73.book Page 14 Thursday, August 2, 2001 5:57 PM

1-15
E

Keep away from intake grate 1 while the
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.

Never insert any object into the jet thrust
nozzle 2 while the engine is running.
Severe injury or death could result from
coming in contact with the rotating parts
of the jet pump.

Stop the engine and remove the clip 3
from the engine shut-off switch 4 before
removing any debris or weeds, which may
have collected around the jet intake.
EJU01644
Water-skiing
You can use the watercraft for water-ski-
ing if it has the seating capacity to carry the
operator, a rearward-facing spotter, and the
water-skier when he or she is not skiing.
The watercraft must also have a cleat 5
designed to pull a ski tow rope; do not attach
the tow rope to any other location.
It is the watercraft operator’s responsibility
to be alert to the safety of the water-skier
and others. Know and follow all local water-
skiing regulations in effect for the waters in
which you will be operating.
The operator should be comfortable car-
rying passengers before attempting to pull a
skier.
The following are some important consid-
erations for minimizing risks while water-ski-
ing.

The skier should wear an approved PFD,
preferably a brightly colored one so boat
operators can see the skier.

The skier should wear protective clothing.
Severe internal injuries can occur if water
is forced into body cavities as a result of
falling into the water. Normal swimwear
does not adequately protect against
forceful water entry into rectum or vagina.
The skier should wear a wetsuit bottom or
clothing that provides equivalent protec-
tion.
UF0M73.book Page 15 Thursday, August 2, 2001 5:57 PM

2-1
E
EJU01008
Location of main components
1Cooling water pilot outlet
Use to verify cooling water flow.
2Bow eye
Use to attach rope for transporting, mooring or
towing the watercraft in an emergency.
3Front storage compartment
4Hood
5Fuel cock knob
Use to select either normal or reserve fuel flow
from the fuel tank to the carburetors, or to shut
off fuel flow.
6Handlebars
Use to control direction.
7Fuel tank filler cap
8Rope hole
Use to attach a rope for mooring only.
9Oil tank filler cap
0Choke knob
Use to start a cold engine.AFootwell
Use to place feet for balance.
BFootrest
CFire extinguisher container
Use to store the fire extinguisher.
DIntake grate
Prevents debris from getting into the jet pump.
EHandgrip
Use for suppor t when boarding the watercraft
or when seated facing rearward and acting as
a spotter for a water-skier.
FRear seat
GFront seat
HGlove compartment
ISeat storage compartments
UF0M73.book Page 1 Thursday, August 2, 2001 5:57 PM

2-12
E
EJU01131
Engine overheat warning
system
This model is equipped with an engine
overheat warning system.
If the engine starts to overheat, the
engine speed will be limited to about
3,400 r/min.
When this occurs, check for water dis-
charge at the cooling water pilot outlet. If
there is no discharge of water, reduce the
engine speed and beach the watercraft, and
then 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.
@
UF0M73.book Page 12 Thursday, August 2, 2001 5:57 PM

3-11
E
EJU01058
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.
@
EJU01059
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.
UF0M73.book Page 11 Thursday, August 2, 2001 5:57 PM

3-17
E
5. While lightly squeezing the throttle lever,
push the start switch (green button).
WARNING@ On this watercraft, the engine is con-
nected directly to the jet pump. Starting
the engine immediately generates some
thrust. Apply only enough throttle to
keep the engine running.
@
6. Release the start switch as soon as the
engine starts to run.
CAUTION:@
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 may be damaged. If the engine
does not start in 5 seconds, release
the start switch, wait 15 seconds, and
try again.
@
7. After the engine has warmed up, push
the choke knob in to its original position.
NOTE:@ If the choke knob is left pulled out, the
engine will stall.
@
UF0M73.book Page 17 Thursday, August 2, 2001 5:57 PM

3-27
E
A
B
C
D
EJU01079
Turning the watercraft
Steering control depends on the combi-
nation of handlebar position and the amount
of throttle.
Water sucked in through the intake grate
is pressurized by the impeller in the jet
pump. As the pressurized water is expelled
from the pump through the jet thrust nozzle,
it creates thrust to move and steer the
watercraft. The higher the engine speed, the
more thrust is produced.
The amount of jet thrust, in addition to the
position of the handlebars, determines how
sharply you turn.
A. More throttle produces higher thrust, so
the watercraft will turn more sharply.
B. Less throttle produces lower thrust, so
the watercraft will turn more gradually.
C. Releasing the throttle completely pro-
duces only minimum thrust. If you are
traveling at speeds above trolling, you
will have rapidly decreasing ability to
steer without throttle. You may still have
some turning ability immediately after
releasing the throttle, but once the
engine slows down, the watercraft will no
longer respond to handlebar input until
you apply throttle again or you reach a
trolling speed.
At trolling speed, the watercraft can be
turned gradually by handlebar position
alone using just the amount of thrust
available at idle.
D. If the engine is stopped while riding,
there is no thrust. The watercraft will go
straight even though the handlebars are
turned.
You need throttle to steer.
UF0M73.book Page 27 Thursday, August 2, 2001 5:57 PM

E
4
EJU01086
MAINTENANCE AND
CARE
Storage ...................................................... 4-1
Flushing the cooling system .................. 4-1
Lubrication .............................................. 4-3
Fuel system ............................................ 4-4
Battery .................................................... 4-5
Cleaning the watercraft .......................... 4-6
Maintenance and adjustments .............. 4-7
Owner’s/Operator’s Manual and
tool kit ..................................................... 4-8
Periodic maintenance chart ................... 4-9
Inspecting the fuel system ................... 4-10
Inspecting the oil injection system ....... 4-12
Inspecting the steering cable ............... 4-13
Inspecting and adjusting the
throttle cable ......................................... 4-13
Cleaning and adjusting the
spark plugs ........................................... 4-14
Lubrication points ................................. 4-15
Adjusting the choke cable .................... 4-17
Inspecting the battery .......................... 4-18
Adjusting the carburetor ...................... 4-20
Replacing the fuse ............................... 4-21
Bleeding the oil injection pump ............ 4-21
Specifications ........................................ 4-22
UF0M73.book Page 1 Thursday, August 2, 2001 5:57 PM

4-10
E
EJU01383
Inspecting the fuel system
WARNING@ Gasoline is highly flammable and explo-
sive. A fire or explosion can cause
severe injury or death. Shut off the
engine. Do not smoke. Avoid spilling
gasoline.
@
Check the fuel system for leaks, cracks,
or malfunctions. If any problem is found, do
the necessary repair or replacement as
required. If repair is necessary, consult a
Yamaha dealer.
Check:

Carburetor for leakage.

Fuel pump for malfunction or leakage.

Fuel tank for water or dirt.

Fuel tank for damage, cracks or leakage.

Fuel hose joint for leakage.

Fuel hose for cracks or other damage.

Fuel filter for leakage.

Fuel cock for leakage.

Air vent check valve for leakage.

Fuel tank filler cap for damage.
WARNING@ Failure to check for and repair any fuel
leakage may result in fire or explosion.
@
UF0M73.book Page 10 Thursday, August 2, 2001 5:57 PM

4-12
E
EJU01100
Inspecting the oil injection
system
Check the oil injection system for leakage,
cracks, or malfunctions. If necessary, have a
Yamaha dealer repair the oil injection sys-
tem.
Check:

Oil tank for damage, cracks or leakage.

Oil tank for water or dirt.

Oil hose and joint for damage or cracks.

Oil filter for dirt.

Oil pump for leakage.
EJU01101
Oil tank
Check the oil tank for leakage or water in
the tank. If water is found in the oil injection
system or if the oil tank needs to be cleaned
have a Yamaha dealer service the water-
craft.
EJU01102
Oil filter
Check the oil filter 1 for dirt and clogs. If
the oil filter is clogged, remove it from the oil
tank together with the oil level sender and
clean it.
UF0M73.book Page 12 Thursday, August 2, 2001 5:57 PM