2008 YAMAHA SUPERJET warning

Important manual information
EJU30150
To the owner/operator
Thank you for choosing a Yamaha watercraft.
This owner’s/operator’s manual contains in-
formation you will need for proper operation,
maintenance, and care. If you have any ques-
tions about the operation or maintenance of
your watercraft, please consult a Yamaha
dealer.
This manual is not a course on boating safety
or seamanship. If this is your first watercraft,
or if you are changing to a type of watercraft
you are not familiar with, for your own comfort
and safety, please ensure that you obtain
proper training or practice before operating
the watercraft by yourself. In addition, a
Yamaha dealer or boating organization will be
pleased to recommend local sea schools, or
competent instructors.
Because Yamaha has a policy of continuing
product improvement, this product may not be
exactly as described in this owner’s/opera-
tor’s manual. Specifications are subject to
change without notice.
This manual should be considered a perma-
nent part of this watercraft and should remain
with it even if the watercraft is subsequently
sold.
In this manual, information of particular impor-
tance is distinguished in the following ways:
The Safety Alert Symbol means ATTEN-
TION! BECOME ALERT! YOUR SAFETY IS
INVOLVED!
WARNING
EWJ00080
Failure to follow WARNING instructions
could result in severe injury or death
to the
machine operator, a bystander, or a per-
son inspecting or repairing the watercraft.
CAUTION:
ECJ00090
A CAUTION indicates special precautions
that must be taken to avoid damage to the
watercraft.
NOTE:
A NOTE provides key information to make
procedures easier or clearer.
EJU30210
SuperJet
OWNER’S/OPERATOR’S MANUAL
©2007 by Yamaha Motor Co., Ltd.
1st Edition, March 2007
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Yamaha Motor Co., Ltd.
is expressly prohibited.
Printed in Japan
UF2F70E0.book Page 3 Tuesday, April 17, 2007 9:56 AM

Table of contents
General and important labels ........... 1
Identification numbers .................... 1
Primary Identification
(PRI-ID) number ............................. 1
Craft Identification Number (CIN) ...... 1
Engine serial number ........................ 1
Important labels .............................. 2
Warning labels ................................... 3
Other labels ....................................... 6
Safety information ............................. 7
Limitations on who may operate
the watercraft .............................. 7
Cruising limitations ......................... 8
Operation requirements ................. 9
Recommended equipment ........... 11
Hazard information ....................... 12
Watercraft characteristics ............. 12
Safe boating rules ........................ 13
Enjoy your watercraft
responsibly ................................ 14
Features and functions ................... 15
Location of main components ...... 15
Operation of controls and
other functions ........................... 17
Hood ................................................ 17
Fuel tank filler cap ........................... 18
Fuel cock knob ................................ 18
Engine stop switch .......................... 19
Engine shut-off switch ..................... 19
Start switch ...................................... 20
Choke knob ..................................... 20
Throttle lever ................................... 20
Cooling water pilot outlet ................. 20
Steering system ............................... 21
Steering pole ................................... 22
Bow rope hole ................................. 22
Stern rope hole ................................ 22
Engine overheat warning system .... 22
Storage pouch ................................. 23
Operation ......................................... 25
Fuel and oil .................................. 25
Gasoline .......................................... 25
2-stroke engine oil ........................... 25
Mixing fuel and oil ............................ 25
Filling the fuel tank .......................... 26
Pre-operation checks ................... 27
Pre-operation check list ................... 27
Pre-operation check points .............. 28
Operation ..................................... 33
Engine break-in ............................... 33
Launching the watercraft ................. 33
Starting the engine .......................... 33
Stopping the engine ........................ 35
Leaving the watercraft ..................... 35
Operating your watercraft ............ 36
Getting to know your watercraft ....... 36
Learning to operate
your watercraft ............................. 36
Operating positions ......................... 37
Starting the watercraft ..................... 38
Boarding and starting
in deep water ............................... 39
Capsized watercraft ......................... 40
Turning the watercraft ..................... 41
Stopping the watercraft ................... 42
Beaching the watercraft ................... 43
Rough water operation .................... 43
Post-operation care ...................... 43
Transporting ................................. 44
Maintenance and care .................... 46
Storage ........................................ 46
Flushing the cooling system ............ 46
Lubrication ....................................... 47
Fuel system ..................................... 47
Battery ............................................. 48
Cleaning the watercraft ................... 48
Maintenance and adjustments ..... 49
Owner’s/operator’s manual and
tool kit ........................................... 49
Periodic maintenance chart ............. 51
Checking the fuel system ................ 53
UF2F70E0.book Page 1 Tuesday, April 17, 2007 9:56 AM

General and important labels
3
EJU35910Warning labels
UF2F70E0.book Page 3 Tuesday, April 17, 2007 9:56 AM

Safety information
7
EJU30680
The safe use and operation of this water-
craft is dependent upon the use of proper
riding techniques, as well as upon the
common sense, good judgment, and ex-
pertise of the operator. Before using this
watercraft, make sure that its use is per-
mitted under local laws, bylaws, and regu-
lations, and always operate the watercraft
in full conformity with any requirements
and limitations imposed. Every operator
should know the following requirements
before riding the watercraft.

Before operating the watercraft, read this
owner’s/operator’s manual, the Riding
Practice Guide, and all warning and caution
labels on the watercraft. These materials
should give you an understanding of the
watercraft and its operation.

Never allow anyone to operate this water-
craft until they too have read this own-
er’s/operator’s manual, the Riding Practice
Guide, and all warning and caution labels.
EJU30700
Limitations on who may
operate the watercraft

Yamaha recommends a minimum operator
age of 16 years old.
Adults must supervise use by minors.
Know your local operator age and training
requirements.

This watercraft is designed to carry the op-
erator only. Never have more than one per-
son on the watercraft at any time.
UF2F70E0.book Page 7 Tuesday, April 17, 2007 9:56 AM

Features and functions
19
The fuel cock knob positions are explained as
follows and are shown in the illustration.
OFF:
With the fuel cock knob in this position, fuel
does not flow. Always turn the fuel cock knob
to this position when the engine is not running.
ON:
With the fuel cock knob in this position, fuel
flows to the carburetors. Turn the fuel cock
knob to this position when starting the engine
and operating the watercraft.
RES:
This indicates reserve. With the fuel cock
knob in this position, the fuel reserve is made
available. Turn the fuel cock knob to this posi-
tion if you run out of fuel while operating the
watercraft. When this occurs, refuel as soon
as possible and be sure to turn the fuel cock
knob back to “ON”!EJU31150Engine stop switch
Push the engine stop switch (red button) to
stop the engine normally.
EJU31160Engine shut-off switch
Insert the clip, on the end of the engine shut-
off cord, under the engine shut-off switch
(black button). The engine will stop automati-
cally when the clip is removed from the
switch, such as if the operator falls off the wa-
tercraft.
WARNING
EWJ00010

Always attach the engine shut-off cord
to your left wrist and the clip to the en-
gine shut-off switch BEFORE starting
the engine.
1Fuel cock knob
1Engine stop switch
1Engine shut-off cord
2Clip
3Engine shut-off switch
UF2F70E0.book Page 19 Tuesday, April 17, 2007 9:56 AM

Features and functions
22
EJU31270Steering pole
The steering pole varies in height with the op-
erator’s posture, enabling the operator to as-
sume various riding positions.
When removing the hood for pre-operation
checks, maintenance, etc., lift the steering
pole and use the lock pin to support it. Move
the lock pin into the detent. Make sure that the
lock pin is returned to the stowed position af-
ter installing the hood.
EJU36000Bow rope hole
The bow rope hole is located at the bow of the
watercraft.The bow rope hole is used to attach a rope to
the watercraft when transporting, mooring, or
towing it in an emergency.
EJU36010Stern rope hole
The stern rope hole is located at the stern of
the watercraft.
The stern rope hole is used to attach a rope to
the watercraft when mooring it.
EJU31660Engine overheat warning system
This model is equipped with an engine over-
heat warning system.
If the engine starts to overheat, the engine
speed will be limited to about 3400 r/min.
If this occurs, immediately reduce the engine
speed, return to shore, and then check for wa-
ter discharge at the cooling water pilot outlet
while the engine is running. If there is no dis-
charge of water, shut the engine off, and then
1Steering pole
2Lock pin
1Bow rope hole
1Stern rope hole
UF2F70E0.book Page 22 Tuesday, April 17, 2007 9:56 AM

Features and functions
23
check the intake grate and impeller for clog-
ging.
WARNING
EWJ00050
Before attempting to remove weeds or de-
bris 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:
ECJ00040
If you cannot locate and correct the cause
of the overheating, consult a Yamaha deal-
er. Continuing to operate at higher speeds
could result in severe engine damage.
EJU31671Storage pouch
A storage pouch is provided on the underside
of the hood for the owner’s/operator’s manual,
tool kit, and other small items.
Bend the owner’s/operator’s manual slightly
to insert it into the storage pouch, and then
add the tool kit and any other small items.
Fold the pouch, and then wrap the strap
around it. Install the storage pouch on the
hood and secure it with the bands.
1Storage pouch
1Band
UF2F70E0.book Page 23 Tuesday, April 17, 2007 9:56 AM

Operation
25
EJU31790
Fuel and oil EJU31831Gasoline
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-
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:
ECJ00310
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.
EJU318702-stroke engine oil
If YAMALUBE 2-W engine oil is not available,
another 2-stroke engine oil with an NMMA-
certified TC-W3 rating may be used.
EJU31900Mixing fuel and oil
CAUTION:
ECJ00330

Avoid using any mixture of gasoline and
oil other than those specified.

Make sure that the gasoline and oil are
thoroughly mixed in the correct ratio,
otherwise the following problems may
occur. Too little oil in the fuel-to-oil ratio
could result in major engine trouble,
such as seizure. Too much oil in the fuel-Recommended gasoline:
Regular unleaded gasoline with a mini-
mum octane rating of
86 (Pump octane number) = (R +
M)/2
90 (Research octane number)
Recommended engine oil:
YAMALUBE 2-W or TC-W3 outboard
motor oil or equivalent
UF2F70E0.book Page 25 Tuesday, April 17, 2007 9:56 AM