Page 64 of 134
3-7
E
EJU01961
Water separator
Check the water separator 1 for water.
Normally the water separator is empty. The
water separator retains any water entering
through the fuel tank breather hose if the
watercraft is capsized.
If water remains in the water separator,
drain it by removing the drain screw 2.
Place a drain pan under the water separator
to catch the draining water or use a dry cloth
to soak up any water that could spill into the
watercraft. If any water spills into the water-
craft, be sure to wipe it up with a dry cloth.
Be sure to install the drain screw after drain-
ing the water separator.
EJU01053
Bilge
Check for moisture and fuel residue in the
bilge.
Excessive water in the bilge can splash
into the carburetor and engine which could
cause engine damage.
To remove water from the bilge:
1. Remove the stern drain plugs.
2. Raise the bow of the watercraft until the
water drains.
3. After the water has drained, wipe the
bilge with dry rags to make sure that the
bilge is thoroughly dry.
4. Install the drain plugs.
CAUTION:@ Make sure that the stern drain plugs
are tightened securely before launch-
ing the watercraft.
Clean any foreign materials, such as
dirt or sand, from the drain plug
threads before installing the drain
plugs.
@
UGU572.book Page 7 Wednesday, August 28, 2002 1:31 PM
Page 65 of 134
3-8
E
EJU01969
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
UGU572.book Page 8 Wednesday, August 28, 2002 1:31 PM
Page 67 of 134
3-10
E
EJU01834
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.
@
EJU01848
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.
Check that the handlebars are locked in
position. (See “Tilt lever” on page 2-12 for
more information.)
UGU572.book Page 10 Wednesday, August 28, 2002 1:31 PM
Page 68 of 134
3-11
E
EJU01245
Shift lever and reverse gate
Check for proper operation of the shift
lever and reverse gate.
Make sure that the reverse gate goes
down to its stopper position when the shift
lever is pulled up.
Also, make sure that the reverse gate
goes up to its stopper position when 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.
@
UGU572.book Page 11 Wednesday, August 28, 2002 1:31 PM
Page 69 of 134
3-12
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 5-4 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.
UGU572.book Page 12 Wednesday, August 28, 2002 1:31 PM
Page 70 of 134
3-13
E
EJU01835
Switches
Check the start switch 1, the engine stop
switch 2, and the engine shut-off switch 3
for proper operation.
To check these switches, place the water-
craft in the water to provide adequate cool-
ing. Start the engine, and then pull the
engine shut-off cord 5 to remove the clip 4
from the engine shut-off switch. Verify that
the engine stops immediately. (See pages
2-9 to 2-10 for information on proper opera-
tion of the start switch, the engine stop
switch and the engine shut-off switch.)
EJU01320
Cooling water pilot outlet
Check that water comes out from the out-
let while the engine is running and the
watercraft is in the water.
EJU01246
Multifunction meter
Check the operation of the multifunction
meter. (See pages 2-18 to 2-27 for operation
of the meter.)
UGU572.book Page 13 Wednesday, August 28, 2002 1:31 PM
Page 71 of 134
3-14
E
EJU01836
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.
@
EJU01888
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:@ For the first tankful of operation, pre-
mix a 50:1 mixture of fuel and oil (in
addition to the oil in the oil tank).
After break-in, use straight gasoline
for normal operation.
@
1. Launch the watercraft and start the
engine. (See page 3-16 for engine start-
ing procedures.)
2. Run the engine at the lowest possible
speed for 5 minutes.
UGU572.book Page 14 Wednesday, August 28, 2002 1:31 PM
Page 72 of 134
3-15
E
3. Gradually open the throttle to 3/4 or less.
4. Continue operation at 3/4 throttle or less
until the first tankful of fuel has been
used.
5. Fill the tank with straight gasoline, and
then proceed with normal operation.
CAUTION:@ Failure to follow the engine break-in pro-
cedure properly can result in severe
damage to the engine.
@
UGU572.book Page 15 Wednesday, August 28, 2002 1:31 PM
