Yamaha GP760Y WaveRunner GP Owner's manual

LIT-18626-03-87●
OWNER’S/OPERATOR’S
MANUAL
U.S.A.Edition
YAMAHA MOTOR CORPORATION, U.S.A.
GP760Y
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 oper-
ation, maintenance, and care. A thorough
understanding of these simple instructions
will help you to obtain maximum enjoy-
ment 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 continu-
ing product improvement, this product
may not be exactly as described in this
Owner’s Manual. Specifications are sub-
ject to change without notice.
This manual should be considered a per-
manent 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 follow-
ing ways:
QThe 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 GP760
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-18626-03-87
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 ..........................1-12
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
E

EJU00288a
ENGINE NUMBER
The engine serial number is stamped on a
label 3attached to the crankcase.
1-1
EJU00699
IDENTIFICATION NUMBER
RECORDS
Record your Primary identification (PRI-
ID) 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
1attached 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.
q
GP7-001
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GP7-002
e
GP7-0035
E
YAMAHA MOTOR CO., LTD.
MADE IN JAPAN
PAYS D’ORIGINE JAPON

1-2
EJU00631a
EMISSION CONTROL
INFORMATION
This engine conforms to 2000 U.S. Envi-
ronmental Protection Agency (EPA) regu-
lation for marine SI engines.
8Approval label of Emission control
certificate
This label is attached to the electrical box.
1Emission control information label
8Manufactured date label
This label is attached to the muffler box.
2Manufactured date label
RU0025
w
q
E
EMISSION CONTROL INFORMATION
ENGINE FAMILY :
THIS ENGINE CONFORMS TO 2000 U.S. EPA REGULATIONS FOR MARINE SI ENGINES.
FELs :
TROLLING SPEED : rpm
SPARK PLUG GAP (mm) :
g/kw-hr
Manufactured:

E
1-3
EJU00293
IMPORTANT LABELS
LOCATION
RU002
!5
u
!1
RU004
RU001
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i
eo
t
w
r
!2
!4 !0
!3

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1-4
LABELS
Warning labels
r
WARNING
Do not add gasoline to the oil tank.
Fire or explosion could result.
YAMAHA GA9-U416F-00
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GP7-U411A-10
GP8-U416C-01
GJ3-U415E-12

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WARNING
Do not touch or remove electrical parts
when starting or running the engine.
YAMAHA
6R7-83623-40
1-5
Caution labels
ui
o!0
!1
y
GP7-U411A-10

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1-6
Other labels
F
I
R
E
E
X
T
I
N
G
U
I
S
H
E
R
C
O
M
P
A
R
T
M
E
N
T
!2
RECOMMENDED OIL
YAMALUBE2-Woranequivalent
TC-W3 certified outboard oil.
YAMAHA GU0-U418J-00
!3
!4
!5
BR8HS
NGK

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EJU00759
QSAFETY
INFORMATION
When you operate your Yamaha Water
Vehicle, you must know and practice the
following for your safety:
EJX13110
8Before operating the water vehicle, read
this entire manual, the Riding Practice
Tips, the Riding Instruction card and all
warning labels on the 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/Operator’s Manual, the
Riding Practice Tips, the Riding Instruc-
tion card and all warning labels.
8This product emits exhaust gases which
contain carbon monoxide, a colorless,
odorless gas which may cause brain
damage or death when inhaled. Symp-
toms include nausea, dizziness, and
drowsiness. Operate the vehicle in an
open area.
EJU00300
LIMITATIONS ON WHO MAY
OPERATE THE VEHICLE
8This 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 indi-
cator that the operator has previously
demonstrated a reasonable degree of
maturity, responsibility, and good judg-
ment.
1-7
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 oper-
ate the water vehicle.
8Your 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.
EJX30510
ATTENTION:
Maximum vehicle load capacity: 160 kg
(353 lb)
Includes weight of operator, passenger,
and any cargo.
EJX17010
8Do 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 pas-
senger before trying any difficult
maneuvers.
K2002

E
8Never ride in water that is less than 60
cm ( 2 feet ) deep. You increase your
chance of hitting an underwater obsta-
cle. You could be injured.
8Do not operate water vehicle after sun-
set or before dawn. It is not equipped
with lighting required for night opera-
tion. You risk collision with another
boat which could cause injury or death.
EJX20010
8The maximum performance potential of
this watercraft is not suitable for all con-
ditions. Consider water conditions,
weather, boat traffic and other potential
obstacles, speed limits and other local
laws, and your abilities before attempt-
ing to travel at higher speeds. Operate
the watercraft no faster than justified by
these conditions.
EJU00613
CRUISING LIMITATIONS
EJX24011
8Do 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.
8Do not operate the vehicle in rough
water, bad weather or when visibility is
poor; this may lead to an accident caus-
ing injury or death. Be alert to the possi-
bility of adverse weather. Take note of
weather forecasts and the prevailing
weather conditions before setting out
on your water vehicle.
EJX23010
8As with any water sport, you should not
ride your water vehicle without some-
one 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
K2003
K1052
60 cm (2 ft.)
K1001

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1-9
EJU00616a
OPERATIONAL REQUIREMENTS
EJX16010
8Operating 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
8Both 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.
EJX31210
1U.S. Coast Guard-approved personal flota-
tion device
2Wetsuit
3Water shoes
4Gloves
5Eye protection
8Strong 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 (rec-
tum and vagina) from strong jet
streams, and from impact with the
water surface. Wetsuits also help pro-
tect against hypothermia (low body
temperature) and abrasions.
EJX11710
EJX11710
8Both operator and a passenger should
wear water shoes to help protect feet
from objects hidden under water. Wear-
ing gloves can also help protect hands
from abrasions.
EJX11911
8Wind, water, and glare from the sun
may get in your eyes while you operate
your water vehicle, reducing your abili-
ty to see. You may want to consider
wearing eye protection such as sun-
glasses 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 protec-
tion outweigh the potential hazards.
EJX11920
8If 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
8Helmets meeting Snell or DOT stan-
dards are required for IJSBA-sanctioned
races. You must decide whether to
wear a helmet while you ride recre-
ationally. 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 condi-
tions.
A helmet is designed to provide some
head protection. Although helmets can-
not protect against all foreseeable
impacts, a helmet might reduce your
injuries in a collision with a boat or
other obstacle.
t
r
e
w
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KA001

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1-10
8For reasons of safety and proper care,
always perform the pre-operation
checks on page 3-3 before riding.
EJX15110
8The 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
EJX10310
EJX71110
8If 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
8Do 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
8The 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 lan-
yard from pulling away.
A helmet may have potential safety haz-
ard, 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 you 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 conges-
tion, 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
8NEVER ride the vehicle after consuming
alcohol or taking drugs.
EJX91010
K2004
KA002

E
GP7-016
1-11
8To prevent accidental starting of the
engine, always remove the lock plate
from the engine stop lanyard switch
when the engine is not running.
1Engine stop lanyard switch
2Engine stop switch lanyard
3Lock plate
8Always watch carefully for swimmers.
Stay away from swimming areas.
Swimmers are hard to see and you
could accidentally hit someone in the
water.
EJX14010
8Avoid 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-
14~1-17), and be sure to check behind
you before making a turn.
EJX15020
EJX15020
GP7-079
eq
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8This 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 jurisdic-
tion. In addition, most state and local
boating laws also require that the carry
a USCG-approved extinguisher wherev-
er it is operated.
EJU00313
HAZARD INFORMATION
EJX42010
8When 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.
KA003

E
EJU00314a
WATER VEHICLE CHARACTERISTICS
EJX34010
8Jet 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.
EJX31010
8Yamaha Water Vehicles are water-jet
propelled. The jet pump is directly con-
nected to the engine. This means that
jet thrust will produce some vehicle
movement whenever the engine is run-
ning. There is no “neutral” position.
EJX35010
8Boats, including your water vehicle, do
not have brakes. Release the throttle or
stop the engine to slow down. Remem-
ber, however, that you have no steering
control without throttle.
EJX79011
1-12
8Keep 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

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1-13
EJU00319
RULES OF THE ROAD
Your Yamaha water vehicle is legally con-
sidered 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 fol-
low them whenever you encounter anoth-
er 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 Aux-
iliary 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-of-
way; it is called the “stand-on” vessel.
The vessel which does not have the right-
of-way is called the “give-way” or “bur-
dened” 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 right-
of-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 Interna-
tional Rules and says,
‘In obeying and construing these rules
due regard shall be had to all dangers of
navigation and collision, and to any spe-
cial circumstances, which may render a
departure from the above rules necessary
in order to avoid immediate danger.’

E
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 Steer-
ing 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 ves-
sel). Any vessels in the shaded area must
yield to you (they are the Give-Way ves-
sels). 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 ves-
sel 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.
KA031
KA032
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. Like-
wise, 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 navi-
gate 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 “fish-
ing vessels” under the International
Rules. Vessels with trolling lines are not
considered fishing vessels. Fishing ves-
sels have the right-of-way regardless of
position. Fishing vessels cannot, howev-
er, 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 power-
driven 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 par-
ticular 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 navi-
gating 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 partic-
ular state. The Uniform State Waterway
Marking System has been devised for
these waters. This system uses buoys and
signs with distinctive shapes and colors

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1-16
to show regulatory or advisory informa-
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 geo-
graphic location. Always consult local
boating authorities before riding your
water vehicle in unfamiliar waters.
11
A
11
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
22
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 naviga-
tion. Leave to starboard (right) proceeding up-
stream.
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
KA034