stop start YAMAHA SUPERJET 2007 User Guide

Maintenance and care
46
EJU33480
Storage
WARNING
EWJ00320
Always turn the fuel cock knob to “OFF”
when storing the watercraft, otherwise
fuel could leak out into the engine or en-
gine compartment, which would create a
fire hazard.
Storage for long periods of time, such as win-
ter storage, requires preventive maintenance
to ensure against deterioration. It is advisable
to have the watercraft serviced by a Yamaha
dealer prior to storage. However, the following
procedures can be performed by the owner.
EJU33510Flushing the cooling system
Flushing the cooling system is essential to
prevent it from clogging with salt, sand, or dirt.
CAUTION:
ECJ00120

Do not supply water to the cooling water
passages when the engine is not run-
ning. The water could flow back through
the muffler into the crankcase, causing
severe engine damage.

Do not run the engine for more than 15
seconds on land without supplying wa-
ter, otherwise the engine could over-
heat.
(1) Remove the watercraft from the water
and place it in a horizontal position.
(2) Remove the flushing hose connector
cap, and then insert the garden hose
adapter into the flushing hose connector
and turn it until it is securely connected.
(3) Connect the garden hose adapter to a
water tap using a garden hose.
NOTE:
A garden hose is not included and must be
purchased separately.
(4) Start the engine, and then immediately
turn the water supply on until water flows
out continually from the cooling water pi-
lot outlet.
(5) Run the engine at idling speed for about
3 minutes watching the engine condition.
If the engine stops while flushing, turn the
water supply off immediately and repeat
the above steps.
(6) Turn the water supply off, and then force
the remaining water out of the cooling
water passages by alternately squeezing
and releasing the throttle lever for 10 to
15 seconds.
(7) Stop the engine.
1Garden hose adapter
2Flushing hose connector
3Flushing hose connector cap
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Maintenance and care
47
(8) Remove the garden hose adapter and in-
stall the flushing hose connector cap.
EJU33560Lubrication
WARNING
EWJ00300
To reduce the risk of fire or explosion:
Never pour or spray gasoline, or any sub-
stance other than a rust inhibitor through
the hole in the carburetor silencer cover.
CAUTION:
ECJ00150

Be sure to install the silencer cap se-
curely after fogging the engine, other-
wise water could enter the engine and
cause damage.

Do not run the engine for more than 15
seconds on land, otherwise the engine
could overheat.
(1) Remove the silencer cap.
(2) Start the engine with the watercraft in a
well-ventilated area.
(3) With the engine running at a fast idle,
quickly spray as much rust inhibitor as
possible through the hole in the silencer
cover. Keep spraying until the engine
stalls (or a maximum of 15 seconds).
(4) Install the silencer cap securely.
(5) Lubricate all cables such as the throttle,
choke, and steering cables.
NOTE:
Use a suitable marine grease applicator to
pressure-lubricate the cables and purge out
any moisture between the inner and outer ca-
bles.
(6) Lubricate the areas of the watercraft
specified in “Lubrication points” on page
57.
EJU33640Fuel system
WARNING
EWJ00290
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 just reaches the
bottom of the filler tube. Do not fill up the
filler tube because fuel expands as it
warms up and could overflow. If tempo-
rarily leaving the watercraft with a full
fuel tank, do not leave it in direct sun-
light. Leave it in a well-ventilated area
with the watercraft in a horizontal posi-
tion.

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-
1Silencer cap
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Maintenance and care
60
(1) Remove all of the battery caps.
(2) If the electrolyte level is low, add distilled
water to raise it to the specified level.
(3) Set the charging rate to 1.9 ampere and
charge the battery slowly until the explo-
sive gases are discharged vigorously
from the battery cells.
To install the battery:
(1) Place the battery in the battery compart-
ment and connect the battery leads to the
battery terminals.
(2) Connect the breather hose to the battery.
(3) Secure the battery in place.
WARNING
EWJ00400
Be sure to connect the breather hose to
the battery. Fire or explosion could result
if the breather hose is damaged, obstruct-
ed, or not connected properly.
CAUTION:
ECJ00260
After installation, make sure that the bat-
tery leads are properly connected to the
battery terminals.
EJU34460Adjusting the carburetor
The carburetor is a vital part of the engine and
requires very sophisticated adjustments.Most adjustments should be left to a Yamaha
dealer who has the professional knowledge
and experience to make them. However, the
operator may adjust the trolling speed as part
of the usual maintenance routine.
CAUTION:
ECJ00170
The carburetor was set at the Yamaha fac-
tory after many tests. If the settings are
disturbed by someone who does not have
the necessary technical knowledge, poor
engine performance and damage may re-
sult.
EJU34470Adjusting the trolling speed
(1) Place the watercraft in the water.
(2) Start the engine and warm it up for 1 to 2
minutes.
(3) While using a diagnostic tachometer, turn
the throttle stop screw to adjust the en-
gine speed to specification. Turn the
throttle stop screw clockwise to increase
the engine speed or counterclockwise to
decrease the engine speed.
1Positive (+) battery terminal: Red lead
2Negative (–) battery terminal: Black lead
3Breather hose
1Throttle stop screw
Trolling speed:
1300 ±50 r/min
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Index
2-stroke engine oil .................................... 25
B
Battery ................................................ 29, 48
Battery, checking...................................... 59
Battery, jumping ....................................... 65
Beaching the watercraft ........................... 43
Bilge ......................................................... 29
Boarding and starting in deep water ........ 39
Boarding and starting in shallow water .... 39
Bow rope hole .......................................... 22
Builder’s plate............................................. 2
C
Capsized watercraft ................................. 40
Carburetor, adjusting................................ 60
Choke cable, adjusting ............................. 58
Choke knob .............................................. 20
Cleaning the watercraft ............................ 48
Cooling water pilot outlet .................... 21, 32
Cruising limitations ..................................... 9
E
Emergency procedures ............................ 64
Engine break-in ........................................ 33
Engine compartment ................................ 28
Engine overheat warning system ............. 23
Engine serial number ................................. 1
Engine shut-off cord ................................. 31
Engine shut-off switch .............................. 20
Engine stop switch ................................... 20
Enjoy your watercraft responsibly ............ 15
F
Filling the fuel tank ................................... 26
Fire extinguisher....................................... 29
Flushing the cooling system ..................... 46
Fuel and oil............................................... 25
Fuel cock knob ......................................... 19
Fuel filter .................................................. 52
Fuel system ........................................ 28, 47
Fuel system, checking.............................. 52
Fuel tank .................................................. 52
Fuel tank filler cap .................................... 19
Fuse, replacing......................................... 66
G
Gasohol .................................................... 25
Gasoline ................................................... 25Getting to know your watercraft ............... 36
H
Hazard information ................................... 13
Hood ......................................................... 18
Hull and deck ........................................... 28
Hull Identification Number (HIN)................. 1
I
Identification numbers ................................ 1
Important labels .......................................... 3
J
Jet intake .................................................. 31
Jet intake and impeller, cleaning .............. 64
Jet thrust nozzle angle, adjusting ............. 53
Jet thrust nozzle angle, checking ............. 52
Jumper cables, connecting ...................... 65
K
Kneeling ................................................... 37
L
Labels, other .............................................. 7
Labels, warning .......................................... 4
Launching the watercraft .......................... 33
Learning to operate your watercraft ......... 36
Leaving the watercraft .............................. 36
Limitations on who may operate the
watercraft ................................................ 8
Lubrication................................................ 47
Lubrication points ..................................... 57
M
Main components, location of .................. 16
Maintenance and adjustments ................. 49
Mixing fuel and oil .................................... 25
Model information....................................... 2
O
Operating positions .................................. 37
Operating your watercraft ......................... 36
Operation ................................................. 33
Operation of controls and other
functions ............................................... 18
Operation requirements ........................... 10
Owner’s/operator’s manual and tool kit .... 49
P
Periodic maintenance chart ...................... 51
Post-operation care .................................. 44
Pre-operation check list ............................ 27
Pre-operation check points ...................... 28
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Index
Pre-operation checks ............................... 27
Primary Identification (PRI-ID) number ...... 1
R
Recommended equipment ....................... 12
Rough water operation ............................. 43
S
Safe boating rules .................................... 14
Spark plugs, cleaning and adjusting ........ 56
Standing ................................................... 38
Start switch............................................... 20
Starting the engine ................................... 33
Starting the watercraft .............................. 38
Steering friction, adjusting ........................ 53
Steering pole ...................................... 22, 30
Steering system ................................. 22, 30
Stern rope hole......................................... 23
Stopping the engine ................................. 35
Stopping the watercraft ............................ 43
Storage..................................................... 46
Storage pouch .......................................... 24
Submerged watercraft .............................. 67
Switches ................................................... 32
T
Throttle cable, checking and adjusting ..... 55
Throttle lever ...................................... 21, 30
Towing the watercraft ............................... 66
Transporting ............................................. 45
Trolling speed, adjusting .......................... 60
Troubleshooting ....................................... 62
Troubleshooting chart .............................. 62
Turning the watercraft .............................. 41
W
Water separator ....................................... 28
Watercraft characteristics......................... 13
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