
LIT-18626-03-86●
OWNER’S/OPERATOR’S
MANUAL
U.S.A.Edition
YAMAHA MOTOR CORPORATION, U.S.A.
GP800Y
WaveRunner GP
READ THIS MANUAL
CAREFULLY BEFORE
OPERATION!

EJU00271a
EJU00270
TO THE OWNER
Thank you for choosing a Yamaha Water
Vehicle. This Owner’s Manual contains
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 water vehicle, please
consult a Yamaha dealer.
YAMAHA MOTOR CO., LTD.
Because Yamaha has a policy of continuing product improvement, this product
may not be exactly as described in this
Owner’s Manual. Specifications are subject to change without notice.
This manual should be considered a permanent part of this water vehicle and
should remain with it even if the vehicle is
subsequently sold.
IMPORTANT MANUAL INFORMATION:
In this manual, information of particular
importance is distinguished in the following ways:
Q
The Safety Alert Symbol means
ATTENTION! BECOME ALERT!
YOUR SAFETY IS INVOLVED!
w
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
vehicle.
cC
A CAUTION indicates special precautions
that must be taken to avoid damage to
the water vehicle.
NOTE:
A NOTE provides key information to make
procedures easier or clearer.
WaveRunner GP800
OWNER’S/OPERATOR’S MANUAL
©1999 by Yamaha Motor Co., Ltd.
1st Edition, June 1999
All rights reserved. Any reprinting
or unauthorized use without
the written permission of
Yamaha Motor Corporation,
U.S.A. is expressly prohibited.
Printed in U.S.A.
P/N LIT-18626-03-86
E

EJU00273
CONTENTS
1
2
3
4
5
1
2
3
4
5
GENERAL AND SAFETY INFORMATION
FEATURE AND FUNCTIONS
OPERATION AND RIDING
MAINTENANCE AND CARE
TROUBLESHOOTING AND
EMERGENCY PROCEDURE
5
6
INDEX
READ THIS OWNER’S / OPERATOR’S MANUAL CAREFULLY
BEFORE OPERATING YOUR WATER VEHICLE.

1
1
1
2
1
3
1
4
1
5
1
6
EJU00274
Chapter 1
GENERAL AND
SAFETY
INFORMATION
IDENTIFICATION NUMBER
RECORDS..................................................1-1
PRI-I.D. number ..................................1-1
Hull identification number (H.I.N) ....1-1
Engine number...................................1-1
EMISSION CONTROL INFORMATION...1-2
IMPORTANT LABELS ..............................1-3
Location...............................................1-3
Labels ..................................................1-4
SAFETY INFORMATION .........................1-7
Limitations on who may
operate the vehicle ............................1-7
Cruising limitations............................1-8
Operational requirements.................1-9
Hazard information ..........................1-11
Water vehicle characteristics ..........1-12
RULES OF THE ROAD ...........................1-13
Steering and sailing rules and
sound signals ...................................1-13
Rules when encountering vessels..1-14
Other special situations...................1-15
TO GET MORE BOATING SAFETY
INFORMATION.......................................1-17
ENJOY YOUR WATER VEHICLE
RESPONSIBLY........................................1-17
FUEL REQUIREMENTS..........................1-18
Gasoline (petrol)...............................1-18
Engine oil ..........................................1-18
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EJU00288a
ENGINE NUMBER
The engine serial number is stamped on a
label 3 attached to the crankcase.
1-1
EJU00699
IDENTIFICATION NUMBER
RECORDS
Record your Primary identification (PRIID) number, Hull identification number
(HIN) and Engine serial number in the
spaces provided, to assist you in ordering
spare parts from your Yamaha water
vehicle dealer. Also record and keep these
ID numbers in a separate place in case
your water vehicle is stolen.
EJU00281a
PRI-I.D. NUMBER
The PRI-ID number is stamped on a label
1 attached to the deck under the rear
seat.
EJU00286a
HULL IDENTIFICATION
NUMBER(H.I.N)
The H.I.N. is stamped on a plate 2
attached to the stern.
E
YAMAHA MOTOR CO., LTD.
MADE IN JAPAN
PAYS D’ORIGINE JAPON
GU0-001
GU0-002
GU0-003

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EJU00631a
EMISSION CONTROL
INFORMATION
This engine conforms to 2000 U.S. Environmental Protection Agency (EPA) regulation for marine SI engines.
8 Approval label of Emission control
certificate
This label is attached to the electrical box.
1 Emission control information label
8 Manufactured date label
This label is attached to the muffler box.
2 Manufactured date label
EMISSION CONTROL INFORMATION
ENGINE FAMILY :
THIS ENGINE CONFORMS TO 2000 U.S. EPA REGULATIONS FOR MARINE SI ENGINES.
g/kw-hr
FELs :
SPARK PLUG GAP (mm) :
TROLLING SPEED :
rpm
Manufactured:

1-4
E
LABELS
Warning labels
r
YAMAHA
WARNING
Do not add gasoline to the oil tank.
Fire or explosion could result.
GD0-U418F-00

1-5
E
i
o
!0
!1
y
GP8-U411A-00
Do not touch or remove electrical parts
when starting or running the engine.
YAMAHA
WARNING
6R7-83623-40

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NGK
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R
A
BR8ES
N
T
N
E
M
T
RECOMMENDED OIL
YAMALUBE 2-W or an equivalent
TC-W3 certified outboard oil.
YAMAHA
GU0-U418J-00
R
E
H
S
I
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1-7
EJU00686
Q
SAFETY
INFORMATION
When you operate your Yamaha Water
Vehicle, you must know and practice the
following for your safety:
8 Before operating the water vehicle, read
this entire manual, the Riding Practice
Tips, the Riding Instruction card and all
warning labels on the water vehicle.
Reading these materials should give
you an understanding of the vehicle
and its operation.
Never allow anyone to operate this
water vehicle until they too have read
this Owner’s Manual, the Riding Practice Tips, the Riding Instruction card
and all warning labels.
8 This product emits exhaust gases which
contain carbon monoxide, a colorless,
odorless gas which may cause brain
damage or death when inhaled. Symptoms include nausea, dizziness, and
drowsiness. Operate the vehicle in an
open area.
EJU00300
LIMITATIONS ON WHO MAY
OPERATE THE VEHICLE
EJX10010
8 This vehicle is recommended only for
operators 16 and older with a valid
motor vehicle license.
Even though a motor vehicle operator’s
license is not required for water vehicle
operation in most states, it is one indicator that the operator has previously
demonstrated a reasonable degree of
maturity, responsibility, and good judgment.
A responsible adult must supervise
operation of this vehicle by minors.
Many states have minimum age and
education requirements. Always check
states and all applicable local boating
laws that apply to you before you operate the water vehicle.
8 Your water vehicle is designed to carry
the operator and only one passenger,
as long as the total weight does not
exceed the maximum load capacity.
ATTENTION:
Maximum vehicle load capacity: 160 kg
(353 lb)
Includes weight of operator, passenger,
and any cargo.
8 Do not try to ride with a passenger until
you have considerable practice riding
alone. Operating with a passenger
requires more skill. Take the time to
become accustomed to the handling
characteristics of the vehicle with a passenger before trying any difficult
maneuvers.
K2002

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EJU00613
CRUISING LIMITATIONS
EJX24011
8 Do not jump boat wakes or follow
another boat or watercraft too closely.
You increase your risk of colliding with
another boat, which could result in
severe injury or death. Do not jump
waves, wakes, or any objects. You risk
severe impact injuries. Jumping can
also cause damage to the water vehicle.
EJX25010
8 Do not operate the vehicle in rough
water, bad weather or when visibility is
poor; this may lead to an accident causing injury or death. Be alert to the possibility of adverse weather. Take note of
weather forecasts and the prevailing
weather conditions before setting out
on your water vehicle.
EJX23010
8 As with any water sport, you should not
ride your water vehicle without someone else near by. If you ride further than
swimming distance from shore, you
should be accompanied by another
boat or watercraft. It’s good, common
sense!
EJX22010
1-8
8 Never ride in water that is less than 60
cm ( 2 feet ) deep. You increase your
chance of hitting an underwater obstacle. You could be injured.
EJX21010
8 Do not operate water vehicle after sun-
set or before dawn. It is not equipped
with lighting required for night operation. You risk collision with another
boat which could cause injury or death.
EJX20010
8 The maximum performance potential of
this watercraft is not suitable for all conditions. Consider water conditions,
weather, boat traffic and other potential
obstacles, speed limits and other local
laws, and your abilities before attempting to travel at higher speeds. Operate
the watercraft no faster than justified by
these conditions.
K2003
60 cm (2 ft.)
K1052
K1001

1-9
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EJU00616a
OPERATIONAL REQUIREMENTS
EJX16010
8 Operating your water vehicle requires
skills acquired only through practice
over a period of time. Take the time to
learn the basic operating techniques
well, before attempting more difficult
maneuvers.
EJX11211
8 Both operator and a passenger must
always wear a U.S. Coast Guard
approved personal flotation device
(vest-type) because of the drowning
hazards associated with water sports.
1 U.S. Coast Guard-approved personal
flotation device
2 Wetsuit
3 Water shoes
4 Gloves
5 Eye protection
8 Strong streams of water from the jet
nozzle, or impact with the water surface
can be dangerous. Both operator and a
passenger must wear wetsuits. Normal
swimming attire may not adequately
protect you. A wetsuit will help protect
against internal injuries to orifices (rectum and vagina) from strong jet
streams, and from impact with the
water surface. Wetsuits also help protect against hypothermia (low body
temperature) and abrasions.
EJX11710
8 Both operator and a passenger should
wear water shoes to help protect feet
from objects hidden under water. Wearing gloves can also help protect hands
from abrasions.
EJX11911
8 Wind, water, and glare from the sun
may get in your eyes while you operate
your water vehicle, reducing your ability to see. You may want to consider
wearing eye protection such as sunglasses or goggles while riding. Some
may find, however, that eye protection
obstructs or distorts their vision, and
distracts from operation. Only you
know the circumstances in which you
operate your water vehicle, so only you
can decide if the benefits of eye protection outweigh the potential hazards.
EJX11920
8 If you wear prescription lenses, consid-
er measures to secure them against
loss while riding. For example, some
goggles are designed to be worn over
glasses or contact lenses. Restraining
straps for glasses are also made which
are designed to float if your glasses
should fall in the water.
EJX12110
8 Helmets meeting Snell or DOT stan-
dards are required for IJSBA-sanctioned
races. You must decide whether to wear
a helmet while you ride recreationally.
A helmet could help protect you in certain kinds of accidents. You should also
know that a helmet could injure you in
some other riding conditions.
A helmet is designed to provide some
head protection. Although helmets cannot protect against all foreseeable
impacts, a helmet might reduce your
injuries in a collision with a boat or
other obstacle.
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KA001

1-10
8 For reasons of safety and proper care,
always perform the pre-operation
checks on page 3-3 before riding.
EJX15110
8 The operator and a passenger should
always keep both feet on the footrest
floor when the vehicle is in motion. If
you lift your feet, you increase your
chances of losing your balance, and
your feet could hit objects outside the
water vehicle. Do not give a ride to a
child whose feet cannot reach the
footrest floor.
The passenger should always firmly
grasp the operator’s waist.
EJX10310
8 If you are pregnant or in poor health,
ask your doctor’s advice on whether it
is safe for you to ride this water vehicle.
EJX90010
8 Do not attempt to modify this water
vehicle!
Modifications to your machine may
reduce safety and reliability, and may
make the vehicle unsafe or illegal for use.
EJX71010
8 The operator should always attach the
engine stop switch lanyard (cable) to
his left wrist so that the engine will stop
if the operator falls off.
Be sure the lanyard is not wrapped
around the handlebar or tangled in the
controls which would prevent the lanyard from pulling away.
EJX71110
E
A helmet may have potential safety hazard, as well. A helmet could catch the
water during a fall into the water. This
is commonly called “bucketing”. The
resulting strain on your neck could
cause choking, severe and permanent
neck injuries, or death. A helmet could
also increase the risk of an accident if it
reduces your vision or hearing, or if it
distracts you or increases your fatigue.
How should you decide if a helmet’s
potential safety benefits outweigh its
potential risks for you? Consider your
particular riding conditions. Consider
factors such as your riding environment
and your riding style and ability. Also
consider the likelihood of traffic congestion, and the water surface conditions. If
you decide to wear a helmet based
upon your riding circumstances, choose
one carefully. Look for a helmet
designed for personal watercraft use, if
possible. Consider a helmet meeting
Snell or DOT standards. If you will be
engaging in closed-course competition,
follow the helmet requirements of the
sanctioning organization.
EJX10210,EJX10410
8 NEVER ride the vehicle after consuming
alcohol or taking drugs.
EJX91010
KA002
K2004

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1-11
8 To prevent accidental starting of the
engine, always remove the lock plate
from the engine stop lanyard switch
when the engine is not running.
1 Engine stop lanyard switch
2 Engine stop switch lanyard
3 Lock plate
8 Always watch carefully for swimmers.
Stay away from swimming areas.
Swimmers are hard to see and you
could accidentally hit someone in the
water.
EJX14010
8 Avoid being hit by another boat! You
should always take the responsibility to
watch for traffic, other boaters may not
be watching for you. If they don’t see
you, or you maneuver more quickly
than other boaters expect, you risk a
collision.
Maintain a safe distance from other
boats or watercraft, and also watch for
boat’s ski ropes or fishing lines. Obey
the “Rules of the Road” (see page 1-13
~1-16), and be sure to check behind you
before making a turn.
EJX15020
8 This water vehicle is included in the
Class A inboard boat classification of
the U.S. Coast Guard. A water craft of
this type MUST carry a fire extinguisher
of a B-1 classification, with a capacity of
two pounds or more when navigating
in waters under Coast Guard jurisdiction. In addition, most state and local
boating laws also require that the carry
a USCG-approved extinguisher wherever it is operated.
EJU00313
HAZARD INFORMATION
EJX42010
8 When transporting or storing your
water vehicle, always place the fuel
cock in the “OFF” position. Otherwise, it
is possible for gasoline to overflow
from the carburetor.
e
q
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GP7-079
KA003
GP7-016

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EJU00314a
WATER VEHICLE CHARACTERISTICS
8 Jet thrust turns the water vehicle. If you
are going faster than trolling speeds
(the lowest maneuvering speed), you
must use throttle to turn. If you release
the throttle completely, you cannot
turn-even if you turn the handlebars.
Practice turning in an open area without
obstructions until you have a good feel
for this maneuver.
8 Yamaha Water Vehicles are water-jet
propelled. The jet pump is directly connected to the engine. This means that
jet thrust will produce some vehicle
movement whenever the engine is running. There is no “neutral” position.
8 Boats, including your water vehicle, do
not have brakes. Release the throttle or
stop the engine to slow down. Remember, however, that you have no steering
control without throttle.
EJX79011
1-12
8 Keep hands, feet, hair, and all other
parts of your body and clothing away
from jet intake on the bottom of the hull
while engine is running because they
could be caught in the intake.
Stop the engine and remove the lock
plate from the engine stop lanyard
switch before removing any debris or
weeds which may have collected
around the jet intake.
Never insert any object in the jet pump
outlet. Severe injury or death could
result from coming in contact with the
rotating parts of the jet pump.
K1053
GP7-029

1-13
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EJU00319
RULES OF THE ROAD
Your Yamaha water vehicle is legally considered a power boat. Operation of the
water vehicle must be in accordance with
the rules and regulations governing the
waterway on which it is used.
Just as there are rules which apply when
you are driving on streets and highways,
there are waterway rules which apply
when you are riding your water vehicle.
These rules are used internationally, and
are also enforced by the United States
Coast Guard and local agencies. You
should be aware of these rules, and follow them whenever you encounter another vessel on the water.
Several sets of rules prevail according to
geographic location, but are all basically
the same as the International Rules of the
Road. The rules presented here in your
Owner’s Manual are condensed, and have
been provided for your convenience only.
Consult your local U.S. Coast Guard Auxiliary or Department of Motor Vehicles for
a complete set of rules governing the
waters in which you will be riding your
water vehicle.
w
Do not operate water vehicle after sunset
or before dawn. It is not equipped with
lighting required for night operation. You
risk collision with another boat which
could cause injury or death.
STEERING AND SAILING RULES AND
SOUND SIGNALS
Whenever two vessels on the water meet
one another, one vessel has the right-ofway; it is called the “stand-on” vessel.
The vessel which does not have the rightof-way is called the “give-way” or “burdened” vessel. These rules determine
which vessel has the right-of-way, and
what each vessel should do.
Stand-On Vessel
The vessel with the right-of-way has the
duty to continue its course and speed,
except to avoid an immediate collision.
When you maintain your direction and
speed, the other vessel will be able to
determine how best to avoid you.
Give-Way Vessel
The vessel which does not have the rightof-way has the duty to take positive and
timely action to stay out of the way of the
Stand-On vessel. Normally, you should
not cross in front of the vessel with the
right-of-way. You should slow down or
change directions briefly and pass behind
the other vessel. You should always move
in such a way that the operator of the
other vessel can see what you are doing.
“The General Prudential Rule”
This rule is called Rule 2 in the International Rules and says,
‘In obeying and construing these rules
due regard shall be had to all dangers of
navigation and collision, and to any special circumstances, which may render a
departure from the above rules necessary
in order to avoid immediate danger.’

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In other words, follow the standard rules
except when a collision will occur unless
both vessels try to avoid each other. If
that is the case, both vessels become
“Give-Way” vessels.
RULES WHEN ENCOUNTERING
VESSELS
There are three main situations which you
may encounter with other vessels which
could lead to a collision unless the Steering Rules are followed:
Meeting (you are approaching another
vessel head-on)
Crossing (you are traveling across the
other vessel’s path)
Overtaking (you are passing or being
passed by another vessel)
In the following illustration, your water
vehicle is in the center. You should give
the right-of-way to any vessels shown in
the white area (you are the Give-Way vessel). Any vessels in the shaded area must
yield to you (they are the Give-Way vessels). Both you and the meeting vessel
must alter course to avoid each other.
1-14
Meeting
If you are meeting another power vessel
head on, and are close enough to run the
risk of collision, neither of you has the
right-of-way! Both of you should alter
course to avoid an accident. You should
keep the other vessel on your port (left)
side. This rule doesn’t apply if both of you
will clear one another if you continue on
your set course and speed.
Crossing
When two power driven vessels are
crossing each other’s path close enough
to run the risk of collision, the vessel
which has the other on the starboard
(right) side must keep out of the way of
the other. If the other vessel is on your
right, you must keep out of its way; you
are the Give-Way vessel. If the other vessel is on your port (left) side, remember
that you should maintain course and
direction, provided the other vessel gives
you the right-of-way as it should.
KA032
KA031
STAND-ON VESSEL
GIVE-WAY VESSEL
KA033

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1-15
Overtaking
If you are passing another vessel, you are
the “Give-Way” vessel. This means that
the other vessel is expected to maintain
its course and speed. You must stay out
of its way until you are clear of it. Likewise, if another vessel is passing you, you
should maintain your speed and direction
so that the other vessel can steer itself
around you.
OTHER SPECIAL SITUATIONS
There are three other rules you should be
aware of when riding your water vehicle
around other vessels.
Narrow Channels and Bends
When navigating in narrow channels, you
should keep to the right when it is safe
and practical to do so. If the operator of a
power-driven vessel is preparing to go
around a bend that may obstruct the view
of other water vessels, the operator
should sound a prolonged blast on the
whistle (4 to 6 seconds). If another vessel
is around the bend, it too should sound
the whistle. Even if no reply is heard,
however, the vessel should still proceed
around the bend with caution. If you navigate such waters with your water vehicle,
you will need to carry a portable air horn,
available from local marine supply stores.
Fishing Vessel Right-of-Way
All vessels which are fishing with nets,
lines or trawls are considered to be “fishing vessels” under the International
Rules. Vessels with trolling lines are not
considered fishing vessels. Fishing vessels have the right-of-way regardless of
position. Fishing vessels cannot, however, impede the passage of other vessels in
narrow channels.
Sailing Vessel Right-of-Way
Sailing vessels should normally be given
the right-of-way. The exceptions to this
are:
1. When the sailing vessel is overtaking
the power-driven vessel, the powerdriven vessel has the right-of-way.
2. Sailing vessels should keep clear of
any fishing vessel.
3. In a narrow channel, a sailing vessel
should not hamper the safe passage
of a power-driven vessel which can
navigate only in such a channel.
Reading Buoys and Other Markers
The waters of the United states are
marked for safe navigation by the lateral
system of buoyage. Simply put, buoys
and markers have an arrangement of
shapes, colors, numbers and lights to
show which side of the buoy a boater
should pass on when navigating in a particular direction. The markings on these
buoys are oriented from the perspective
of being entered from seaward (the
boater is going towards the port). This
means that red buoys are passed on the
starboard (right) side when proceeding
from open water into port, and black
buoys are to port (left) side. When navigating out of port, your position with
respect to the buoys should be reversed;
red buoys should be to port and black
buoys to starboard.
Many bodies of water used by boaters are
entirely within the boundaries of a particular state. The Uniform State Waterway
Marking System has been devised for
these waters. This system uses buoys and
signs with distinctive shapes and colors
to show regulatory or advisory informa-

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1-16
tion. These markers are white with black
letters and orange boarders. They signify
speed zones, restricted areas, danger
areas, and general information.
Remember, markings may vary by geographic location. Always consult local
boating authorities before riding your
water vehicle in unfamiliar waters.
1
1
A
1
1
Proceeding toward head
of navigation from seaward
CAN BUOY
Odd number. Leave to port.
OR
SECONDARY CHANNEL BUOYS
STARTS NEW NUMBERING SYSTEM
old new
C" 1
"
NUN BUOY
Even number. Leave to starboard
N " 2
"
No change
BUOY
COLOR CODE
BLACK
RED
GREEN
"A"
"
2
"
"
1
"
"
3
"
"4"
"
5
"
"
7
"
N" 2
"
"
6
"
C"1
"
RB "L
"
RG "L
"
or
SECONDARY CHANNEL
MAIN CHANNEL
old
new
2
2
2
A
L
L
Odd number. increasing toward head of naviga-
MAIN CHANNEL BUOYS
"1" " 3" " 5" " 7"
tion.Leave to port (left) proceeding upstream.
LIGHTED BUOY (Port Hand)`
White Light
Green Light
old
new
old
new
old
new
LIGHTED BUOY (Starboard Hand)`
" 2" " 4" " 6"
Even number,increasing toward head of navigation. Leave to starboard (right) proceeding upstream.
White Light Red Light
"A"
LIGHTED SAFE WATER BUOY
No number. Marks midchannel, pass on either
side. Letter has no lateral significance, used for
No number. Topmost band red
-
preferred
Top Mark
White Light
White Light
OR
OR
LIGHTED PREFERRED CHANNEL TO
RB
"L"
RG"L
"
PORT BUOY
identification and location purposes.
channel is to left of buoy. Letter has no lateral
significance, used for identification and location
purposes.
Red Light
Red or
White Light
OR

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1-17
EJU00320
TO GET MORE BOATING
SAFETY INFORMATION
Be informed about boating safety. Additional publications and information can
be obtained from many organizations,
including the following.
United States Coast Guard
Consumer Affairs Staff (G-BC)
Office of Boating, Public, and Consumer
Affairs
U.S. Coast Guard Headquaters
Washington, D.C. 20593-0001
Boating Safety Hotline: 1-800-368-5647
Personal Watercraft Industry Association
(PWIA)
401 N. Michigan Ave.
Chicago, IL 60611
Personal Watercraft Riders Association
(PWRA)
401 N. Michigan Ave.
Chicago, IL 60611
EJU00322
ENJOY YOUR WATER VEHICLE
RESPONSIBLY
8 You share the areas you enjoy when
riding your Water Vehicle with others
and with nature. So your enjoyment
includes a responsibility to treat these
other people, and the lands, waters, and
wildlife with respect and courtesy.
8 Whenever and wherever you ride, think
of yourself as the guest of those around
you. Remember, for example, that the
sound of your Water Vehicle may be
music to you, but it could be just noise
to others. And the exciting splash of
your wake can make waves others wont
enjoy. Avoid riding close to shoreline
homes and waterfowl nesting areas or
other wildlife areas, and keep a respectful distance from fishermen, other
boats, swimmers, and populated beaches. When travel in areas like these is
unavoidable, ride slowly and obey all
laws.
8 Remember that pollution can be harm-
ful to the environment. Do not refuel or
add oil where a spill could cause damage to nature. Remove your Water
Vehicle from the water and move it
away from the shoreline before refueling. And keep your surroundings pleasant for the people and wildlife that
share the waterways: do not litter!
8 When you ride responsibly, with
respect and courtesy for others, you
help ensure that our waterways stay
open for the enjoyment of a variety of
recreational opportunities.

1-18
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EJU00323a
FUEL REQUIREMENTS
GASOLINE(PETROL)
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GASOLINE (PETROL) AND ITS VAPORS
ARE HIGHLY FLAMMABLE AND EXPLOSIVE!
8 Do not smoke when refueling, and
keep away from sparks, flames, or
other sources of ignition.
8 Stop engine before refueling.
8 Refuel in a well-ventilated area. Do not
stand or sit on the water vehicle while
refueling in case of fire.
8 Take care not to spill gasoline (petrol).
If gasoline (petrol) spills, wipe it up
immediately with dry rags. Always
properly dispose of gasoline-soaked
rags.
8 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.
8 Tighten the filler cap securely after
refueling.
8 If you should swallow some gasoline
(petrol), inhale a lot of gasoline (petrol)
vapor, or get gasoline (petrol) in your
eyes, get immediate medical attention.
8 If any gasoline (petrol) spills onto your
skin, immediately wash with soap and
water. Change clothing if gasoline
(petrol) spills on it.
cC
Use only fresh gasoline (petrol) that has
been stored in clean containers.
Gasohol
There are two types of gasohol: gasohol
containing ethanol and that containing
methanol. Gasohol containing ethanol
can be used if ethanol content does not
exceed 10% and the fuel meets minimum
octane ratings. Gasohol containing
methanol is not recommended by
Yamaha because it can cause fuel system
damage or engines performance problems.
EJU00324a
ENGINE OIL
If YAMALUBE 2-W is not available, another 2-stroke engine oil with a NMMA-certified TC-W3 rating may be used.
Recommended gasoline:
Unleaded regular gasoline
Minimum octane rating:
86 (Pump octane number): (R+M)/2
90 (Research octane number)
Recommended oil:
YAMALUBE 2-W

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EJU00326
Chapter 2
FEATURES AND
FUNCTIONS
LOCATION OF MAIN
COMPONENTS.........................................2-1
OPERATION OF CONTROLS
AND OTHER FUNCTIONS.......................2-4
Front seat ............................................2-4
Rear seat .............................................2-4
Front hood ..........................................2-5
Fuel tank filler cap ..............................2-6
Fuel cock .............................................2-6
Engine stop switch ............................2-7
Engine stop lanyard switch ..............2-7
Choke knob .........................................2-8
Throttle lever ......................................2-8
Starter switch .....................................2-8
Cooling water pilot outlet..................2-9
Steering...............................................2-9
Quick shift trim system (Q.S.T.S.) ..2-10
Overheat warning system...............2-11
Handgrips .........................................2-12
Bow eye, Rope holes, and Cleat.....2-12
Multifunction meter .........................2-13
Storage compartments ...................2-22
Yamaha adjustable sponson
(Y.A.S.) ..............................................2-24

2-1
EJU00327
EJD10010
LOCATION OF MAIN COMPONENTS
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TK001A
1 Cooling water pilot outlets
Check point of cooling water flowing.
2 Bow eye
Rope attachment point for transporting,
mooring, or towing the water vehicle in an
emergency.
3 Front storage compartment
4 Fire extinguisher compartment
5 Front hood
6 Choke knob
Pull knob when starting a cold engine.
7 Rope hole
Rope attachment point for transporting,
mooring.
8 Fuel tank filler cap
9 Fuel cock
Select fuel flow from normal or reserve area
of the fuel tank, or shut off fuel flow.
0 Handlebars
Control steering direction.
q Footrest floor
To place feet for balance.
w Cleat
Rope attachment point for mooring only.
e Intake grille
Prevents debris from getting into the jet
pump.
r Speed sensor
t Seat storage compartment
y Rear seat
u Front seat
i Grove compartment
o Yamaha Adjustable Sponson (Y.A.S.)
Changes maneuvering characteristic by
adjusting the sponson angle.

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2-2
1 Engine stop switch lanyard (Cable)
By connecting to the stop switch and operator will stop the engine if the operator falls
off the vehicle.
2 Engine stop switch
Depress to stop the engine.
3 Engine stop lanyard switch
Removing the lock plate makes to stop the
engine and disable to start the engine.
4 Lock plate
Insert the lock plate in the engine stop lanyard switch to allow the engine to be started. Remove the plate to stop the engine or
prevent it from starting.
5 Quick Shift Trim System (QSTS) controller
Controls thrust trim for different operating
conditions.
6 Starter switch
Depress to start the engine.
7 Multifunction meter
Shows engine speed and vehicle speed and
some other conditions on the vehicle.
8 Throttle lever
Controls the engine speed when accelerating and decelerate.
9 Drain plugs
Open to drain water in the bilge when the
vehicle is on dry land. Tighten securely
before launching craft.
0 Steering jet nozzle
Changes the direction of jet thrust according
to handlebar position to steer the vehicle.
TK002A TK003A

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TK004A
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2-3
1 Fuel tank
2 Water separator
To trap water from the air passage to the
fuel tank.
3 Fuel filter
Prevents dust contained in fuel from getting
into the engine.
4 Oil tank
5 Silencer
To help prevent water from getting into the
engine and reduce the air intake noise.
6 High tension cord
Deliver electrical current to the spark plug.
7 Spark plug/Spark plug cap
8 Electrical box
Contains most electrical components,
included fuse in this water resistant box.
9 Battery
0 Flush hose connector
q Muffler box

2-4
EJU00328
OPERATION OF CONTROLS
AND OTHER FUNCTIONS
EJU00334
FRONT SEAT
There is a seat latch under the rear seat.
First remove the rear seat to reach the
front seat latch lever, then remove the
front seat.
Removal
Pull the front seat latch lever up, then lift
the rear of the seat , and pull back.
1 Front seat latch lever
Installation
Position the seat on the deck so the front
projection of the seat fits under the stay
on the deck. Then push the rear of the
seat down until the seat locks latch.
2 Stay
NOTE:
Make sure the seat is firmly secured
before riding.
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EJU00335
EJD13510
REAR SEAT
There is a seat latch lever at the rear of
the seat to remove the rear seat.
Removal
Pull the rear seat latch lever up, then lift
the rear of the seat and pull back.
1 Rear seat latch lever
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GP7-005
GU0-006
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GP7-007
GP7-008

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2-5
Installation
Position the seat on the deck so the front
projections on the underside of the seat
fits into the stays on the deck. Then push
the rear of the seat down until the seat
lock latches.
NOTE:
Make sure the seat is firmly secured
before riding.
EJU00343a
EJD15710
FRONT HOOD
The front food is secured by the latch 1.
Pull up the latch lever and lift the food to
open it.
NOTE:
Make sure the front food is firmly secured
with the latch before riding.
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GP7-009
GP7-010
GP7-011
GP7-012

2-6
EJU00345
EJD18010
FUEL TANK FILLER CAP
To remove the fuel tank filler cap, turn it
counterclockwise.
1 Fuel tank filler cap
Be sure to tighten the cap securely before
riding.
EJU00704
FUEL COCK
The fuel cock 1 supplies fuel from the
fuel tank to the carburetor.
The fuel cock has three positions;
OFF
With the knob in this position, fuel does
not flow. Always turn the knob to this
position when the engine is not running.
ON
With the knob in this position, fuel flows
to the carburetor. Normal running is done
with the knob in this position.
RES
If you run out of fuel in the ”ON” position, turn the knob to this position to be
able to continue for a short time.
Remember to FILL THE TANK AT THE
FIRST OPPORTUNITY.
After refueling, return the fuel cock knob
to the ”ON” position for further riding.
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GP7-013
GP7-014
GP7-015