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2
EJU10070
FEATURES AND
FUNCTIONS
Location of main components .............. 2-1
Operation of controls and other
functions ................................................... 2-5
Seat ........................................................ 2-5
Hood ....................................................... 2-6
Fuel tank filler cap .................................. 2-6
Oil tank filler cap ..................................... 2-6
Engine stop switch ................................. 2-7
Engine shut-off switch ............................ 2-7
Throttle lever .......................................... 2-7
Start switch ............................................. 2-8
Cooling water pilot outlet ....................... 2-8
Steering system ..................................... 2-9
Quick Shift Trim System (QSTS)
selector ................................................. 2-10
Handgrip ............................................... 2-11
Engine overheat warning system ........ 2-12
Exhaust temperature warning system 2-13
Yamaha Engine Management
System (YEMS) ................................... 2-14
Multifunction information center .......... 2-15
Tachometer .......................................... 2-16
Speedometer ....................................... 2-16
Fuel meter ............................................ 2-16
Hour meter/Voltmeter .......................... 2-17
Fuel warning indicator .......................... 2-17
Oil warning indicator ............................ 2-18
Check engine warning indicator .......... 2-18
Engine overheat warning indicator ...... 2-19
Exhaust temperature warning
indicator ................................................ 2-19
Storage compartments ........................ 2-20
Yamaha Adjustable Sponson
(Y.A.S.) ................................................. 2-21
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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
5Jet intake
6Handgrip
7Seat
8Glove compartment
9Yamaha Adjustable Sponson (Y.A.S.)
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2-4
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1Spark plugs/Spark plug caps
2Electrical box
Protects electrical components from water.
3Flush hose connector
Use to flush the engine cooling water pas-
sages.
4Spark plug lead
5Muffler
6Fuel tank
7Oil tank8Battery
9Fire extinguisher container
0Water separator
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2-8
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EJU18610
Start switch
Push the start switch 1 (green button) to
start the engine.
NOTE:@ The engine will not start when the clip is
removed from the engine shut-off switch or if
the throttle lever is squeezed.
@
EJU10201
Cooling water pilot outlet
This watercraft is equipped with cooling
water pilot outlets.
When the engine is running, cooling
water is circulated in the engine, and then it
is discharged from the pilot outlets.
To check for proper operation of the cool-
ing system, check that water is being dis-
charged from the pilot outlets. If water is not
being discharged from the outlets, cooling
water may not be circulating in the engine.
When this occurs, stop the engine and
check for the cause. (See pages 2-12 and
5-4 for further instructions.)
NOTE:@ If the cooling water passages are dry, it will
take about 20 seconds for the water to reach
the outlet after the engine is started.
@
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EJU20450
Engine overheat warning
system
This model is equipped with an engine
overheat warning system.
If the engine starts to overheat, the warn-
ing light and the engine overheat warning
indicator begin to blink, and the buzzer
sounds intermittently.
When this occurs, reduce the engine
speed and beach the watercraft. Check for
water discharge. If there is no discharge of
water at the cooling water pilot outlet, whole
the engine is running, 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:@ This watercraft is equipped with a cata-
lytic converter.
Return to shore at low speed if over-
heat warning indicator and buzzer
come on. If you ignore these signals,
engine will stop running and cannot be
restarted until exhaust system cools
down.
Have your watercraft inspected and
serviced by a Yamaha dealer if engine
stops due to overheating.
@
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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.
@
POC-***
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 and front storage compartment
to ventilate engine compartment. Check for fuel
vapors or loose electrical connections3-7
Bilge Check for water and fuel residue and remove if
necessary3-8
Throttle Check that the throttle lever springs back 3-11
Steering system Check for proper steering system operation 3-11
Fuel and oil Check fuel and oil level and add if necessary
Check hoses and tanks for leakage3-7
Water separator Check for water and drain if necessary 3-8
Battery Check electrolyte level and battery condition 3-9
Hood Check that the hood is properly secured 2-6
Seat Check that the seat is properly secured 2-5
Hull/Deck Check the hull and deck for cracks or other dam-
age—
Jet unit Check for debris and remove if necessary 3-12
Fire extinguisher Check the condition and replace if necessary 3-10
Engine shut-off cord Check condition and replace is frayed or broken 3-12
Switches Check the start switch, engine stop switch and
engine shut-off switch for proper operation when
the watercraft is in the water3-13
Cooling water pilot outlet Check that water is discharged while the engine
is running and the watercraft is in the water3-13
Multifunction information center Check for warning indications and proper opera-
tion3-13
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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 5-4 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.
@
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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EJU18350
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
2-7 to 2-8 for information on proper opera-
tion of the start switch, the engine stop
switch and the engine shut-off switch.)
EJU10610
Cooling water pilot outlet
Check that water comes out from the out-
lets while the engine is running and the
watercraft is in the water.
EJU10620
Multifunction information center
Check the operation of the multifunction
information center. (See pages 2-15 to 2-19
for multifunction information center.)
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