maintenance YAMAHA SUPERJET 2003 Owners Manual

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EJU00989
To the owner/operator
Thank you for choosing a Yamaha water-
craft. This Owner’s/Operator’s Manual con-
tains information you will need for proper
operation, maintenance, and care.
A thorough understanding of these simple
instructions will help you to obtain maximum
enjoyment from your new Yamaha. If you
have any questions about the operation or
maintenance of your watercraft, please con-
sult a Yamaha dealer.
Because Yamaha has a policy of continu-
ing product improvement, this product may
not be exactly as described in this Owner’s/
Operator’s Manual. Specifications are sub-
ject to change without notice.
This manual should be considered a per-
manent part of this watercraft and should
remain with it even if the watercraft is subse-
quently sold.EJU01265
Important manual information:
In this manual, information of particular
importance is distinguished in the following
ways:
The Safety Alert Symbol means
ATTENTION! BECOME ALERT!
YOUR SAFETY IS INVOLVED!
WARNING@ Failure to follow WARNING instructions
could result in severe injury or death to
the machine operator, a bystander, or a
person inspecting or repairing the water-
craft.
@
CAUTION:@ A CAUTION indicates special precau-
tions that must be taken to avoid damage
to the watercraft.
@
NOTE:@ A NOTE provides key information to make
procedures easier or clearer.
@
EJU01266
SuperJet 700
OWNER’S/OPERATOR’S MANUAL
©2002 by Yamaha Motor Co., Ltd.
1st Edition, May 2002
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Yamaha Motor Co., Ltd.
is expressly prohibited.
Printed in Japan
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EEJU00992
CONTENTS
READ THIS OWNER’S/OPERATOR’S MANUAL CAREFULLY BEFORE
OPERATING YOUR WATERCRAFT.
GENERAL AND SAFETY
INFORMATION
1
FEATURES AND FUNCTIONS 2
OPERATION 3
MAINTENANCE AND CARE 4
TROUBLESHOOTING AND
EMERGENCY PROCEDURES
5
APPENDIX 6
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Steering pole
The steering pole varies in height with the
operator’s posture, enabling the operator to
assume various riding positions.
When removing the hood for pre-opera-
tion checks, maintenance, etc., lift the steer-
ing pole 1 and use the lock pin 2 to
support it. Move the lock pin into the detent.
Make sure the lock pin is returned to the
stowed position after installing the hood.
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MAINTENANCE AND
CARE
Storage ...................................................... 4-1
Flushing the cooling system .................. 4-1
Lubrication .............................................. 4-3
Fuel system ............................................ 4-5
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 jet thrust nozzle
angle ..................................................... 4-12
Inspecting and adjusting the throttle
cable ..................................................... 4-12
Cleaning and adjusting the spark
plugs ..................................................... 4-13
Lubrication points ................................. 4-14
Adjusting the choke cable .................... 4-16
Inspecting the battery .......................... 4-17
Adjusting the carburetor ...................... 4-19
Replacing the fuse ............................... 4-20
Adjusting the steering friction .............. 4-20
Adjusting the jet thrust nozzle angle ... 4-21
Specifications ........................................ 4-23
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4-1
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Storage
WARNING@ Always place the fuel cock knob in the
“OFF” position when storing the water-
craft, otherwise fuel could leak out into
the engine or engine compartment,
which would create a fire hazard.
@
Storage for prolonged periods of time,
such as winter storage, requires preventa-
tive maintenance to ensure against deterio-
ration. It is advisable to have the watercraft
serviced by a Yamaha dealer prior to stor-
age. However, the following procedures can
be performed by the owner.
EJU01088
Flushing the cooling system
Flushing the cooling system is essential
to prevent the cooling system from being
clogged with salt, sand, or dirt.
CAUTION:@
Do not supply water to the cooling
water passages when the engine is not
running. The water could flow back
through the muffler into the crankcase
causing severe engine damage.

Do not run the engine for more 15 sec-
onds without supplying water, other-
wise the engine may overheat.
@
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Maintenance and
adjustments
Periodic inspection, adjustment and lubri-
cation will keep your watercraft in the safest
and most efficient condition possible. Safety
is an obligation of the watercraft owner. The
most important points of watercraft inspec-
tion, adjustment and lubrication are
explained on the following pages.
See your Yamaha dealer for genuine
Yamaha replacement parts and optional
accessories designed for your watercraft.
Remember that failures that are the result
of the installation of parts or accessories
which are not qualitatively equivalent to gen-
uine Yamaha parts are not covered by the
limited warranty.
WARNING@
Be sure to turn off the engine when
you perform maintenance unless oth-
erwise specified, otherwise an acci-
dent or injury could result from
unexpected operation, moving parts,
or electric shock. If the owner is not
familiar with watercraft servicing, this
work should be done by a Yamaha
dealer. Improperly serviced compo-
nents could fail or stop operating cor-
rectly, which could result in an
accident.

Modifications to this watercraft not
approved by Yamaha may cause loss
of performance or excessive noise, or
render it unsafe for use. Consult a
Yamaha dealer before attempting any
changes.
@
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Periodic maintenance chart
The following chart gives general guidelines for periodic maintenance. However, depend-
ing on your operating conditions maintenance may need to be performed more frequently.
*1: Grease capacity: 20.0–22.0 cm3 (0.68–0.74 oz)
*2: Grease capacity: 3.0–5.0 cm3 (0.10–0.17 oz)
*3: After every use
*4: Before every use
*5: Inspect fluid level before every use
(
) This mark indicates maintenance that you may do yourself.
(
❍) This mark indicates work to be done by a Yamaha dealer.
MAINTENANCE INTERVAL INITIALTHEREAF-
TER EVERYPA G E
10
hours50
hours100
hours 100
hours 200
hours
ITEM
6
months12
months12
months24
months
Spark plug Inspect, clean, adjust




4-13
Lubrication points Lubricate


4-14
Intermediate housing Lubricate❍
*1

*2

*2 4-16
Fuel system Inspect❍❍
4-10
Fuel filter Check, clean, replace❍❍
4-11
Fuel tank Clean❍
4-11
Carburetor setting Inspect, adjust❍❍❍
4-19
Trolling speed Inspect, adjust


4-19
Carburetor throttle shaft Inspect❍❍
—
Cooling water passages Flush

*34-1
Bilge strainer Clean


—
Impeller Inspect

*4❍❍
—
Jet thrust nozzle angle Inspect


4-12
Steering pivot Inspect❍❍❍
—
Steering friction Inspect, adjust



4-20
Throttle lever Check operation

*44-12
Throttle cable Inspect, adjust


4-12
Choke knob Check operation

*44-16
Choke cable Inspect, adjust ❍❍
4-16
Battery Inspect

*5❍❍
4-17
Rubber coupling Inspect❍
—
Engine mount Inspect❍
—
Nuts and bolts Inspect❍❍❍
—
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Adjusting the carburetor
The carburetor is a vital part of the engine
and requires very sophisticated adjustment.
Most adjusting should be left to a Yamaha
dealer who has the professional knowledge
and experience to perform it. However, the
operator may adjust the trolling speed as
part of the usual maintenance routine.
CAUTION:@ The carburetor was set at the Yamaha
factory after many tests. If the settings
are disturbed by someone who does not
have the necessary technical knowledge,
poor engine performance and damage
may result.
@
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Adjusting the trolling speed
1. Put the watercraft in the water.
2. Start the engine and warm it up for 1 or
2 minutes. Using a diagnostic tachome-
ter, adjust the engine speed to specifica-
tion.
3. Turn the throttle stop screw 1 clockwise
to increase engine speed if necessary.
Turn it counterclockwise to decrease
engine speed if necessary.
Trolling speed: 1,250–1,350 r/min
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Index
2-stroke engine oil ................................... 3-2
A
Adjusting the carburetor ........................ 4-19
Adjusting the choke cable ..................... 4-16
Adjusting the jet thrust nozzle angle ..... 4-21
Adjusting the steering friction ................ 4-20
Adjusting the trolling speed ................... 4-19
B
Battery .............................................. 3-8, 4-5
Beaching the watercraft ........................ 3-30
Bilge ........................................................ 3-7
Boarding and starting in deep water ..... 3-22
Boarding and starting in shallow
water ..................................................... 3-24
C
Capsized watercraft .............................. 3-26
Choke knob ............................................. 2-6
Cleaning and adjusting the spark
plugs...................................................... 4-13
Cleaning the jet intake and impeller ........ 5-3
Cleaning the watercraft ........................... 4-6
Connecting the jumper cables................. 5-5
Cooling water pilot outlet ................ 2-7, 3-12
Cruising limitations .................................. 1-7
E
Emergency procedures ........................... 5-3
Engine break-in ..................................... 3-13
Engine compartment ............................... 3-6
Engine overheat warning system ............ 2-9
Engine serial number .............................. 1-1
Engine shut-off cord (lanyard) ............... 3-11
Engine shut-off switch ............................. 2-5
Engine stop switch .................................. 2-5
Enjoy your watercraft responsibly ......... 1-13
F
Filling the fuel tank .................................. 3-4
Fire extinguisher...................................... 3-9
Flushing the cooling system .................... 4-1
Fuel and oil.............................................. 3-1
Fuel cock knob ........................................ 2-4Fuel filter ............................................... 4-11
Fuel system ......................................3-6, 4-5
Fuel tank ............................................... 4-11
Fuel tank filler cap ................................... 2-4
G
Gasohol ................................................... 3-2
Gasoline .................................................. 3-1
Getting to know your watercraft ............ 3-19
H
Hazard information ................................ 1-11
Hood........................................................ 2-3
Hull Identification Number (HIN).............. 1-1
I
Identification numbers ............................. 1-1
Important labels ....................................... 1-2
Inspecting and adjusting the throttle
cable...................................................... 4-12
Inspecting the battery ............................ 4-17
Inspecting the fuel system ..................... 4-10
Inspecting the jet thrust nozzle angle .... 4-12
J
Jet unit................................................... 3-11
Jumping the battery ................................. 5-4
K
Kneeling ................................................ 3-25
L
Label location .......................................... 1-2
Learning to operate your watercraft ...... 3-19
Leaving the watercraft ........................... 3-18
Limitations on who may operate the
watercraft ................................................ 1-6
Location of main components ................. 2-1
Lubrication............................................... 4-3
Lubrication points .................................. 4-14
M
Maintenance and adjustments ................ 4-7
Mixing fuel and oil ................................... 3-3
O
Operating positions ............................... 3-25
Operating your watercraft ...................... 3-19
Operation .............................................. 3-13
Operation of controls and other
functions .................................................. 2-3
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Operation requirements .......................... 1-8
Other labels ............................................. 1-5
Owner’s/Operator’sManualandtoolkit ...... 4-8
P
Periodic maintenance chart..................... 4-9
Post-operation checks........................... 3-31
Pre-operation check list........................... 3-5
Pre-operation check points ..................... 3-6
Pre-operation checks .............................. 3-5
Primary Identification (PRI-ID) number ... 1-1
R
Recommended equipment .................... 1-10
Replacing the fuse ................................ 4-20
Rough water operation .......................... 3-30
S
Safe boating rules ................................. 1-12
Safety information ................................... 1-6
Specifications ........................................ 4-23
Standing ................................................ 3-25
Starting the engine ................................ 3-15
Starting the watercraft ........................... 3-21
Start switch.............................................. 2-6
Steering pole .................................. 2-8, 3-10
Steering system ............................. 2-7, 3-10
Stopping the engine .............................. 3-18
Stopping the watercraft ......................... 3-29
Storage.................................................... 4-1
Storage pouch ....................................... 2-10
Submerged watercraft ............................. 5-7
Switches ................................................ 3-12
T
Throttle .................................................. 3-10
Throttle lever ........................................... 2-6
Towing the watercraft .............................. 5-6
Transporting .......................................... 3-33
Troubleshooting ...................................... 5-1
Troubleshooting chart ............................. 5-1
Turning the watercraft ........................... 3-27
W
Warning labels ................................. 1-2, 1-3
Watercraft characteristics...................... 1-11
Water separator ...................................... 3-7
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