Important manual information
EJU30193
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 com-
fort 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.
In this manual, information of particular im-
portance is distinguished in the following
ways:
This is the safety alert symbol. It is used
to alert you to potential personal injury haz-
ards. Obey all safety messages that follow
this symbol to avoid possible injury or death.
EWJ00072
A WARNING indicates a hazardous situa-
tion which, if not avoided, could result in
death or serious injury.
ECJ00092
A NOTICE indicates special precautions
that must be taken to avoid damage to the
watercraft or other property.
TIP
A TIP provides key information to make pro-
cedures easier or clearer.
EJU45451
Engine data recording
This model’s ECM stores certain engine data
to assist in the diagnosis of malfunctions and
for research, statistical analysis and develop-
ment purposes.
Although the sensors and recorded data will
vary by model, the main data points are:
Engine status and engine performance
data
This data will be uploaded only when a spe-
cial Yamaha diagnostic tool is attached to the
engine, such as when maintenance checks or
service procedures are performed. Engine
data uploaded will be handled appropriately
according to the following Privacy Policy.
Privacy Policy
Yamaha will not disclose this data to a third party except in the following cases. In addi-
tion, Yamaha may provide engine data to a
contractor in order to outsource services re-
lated to the handling of the engine data. Even
in this case, Yamaha will require the contrac-
tor to properly handle the engine data we
provided and Yamaha will appropriately
manage the data.
With the consent of the boat owner
Where obligated by law
For use by Yamaha in litigation
For general Yamaha-conducted research
purposes when the data is not related to an
individual engine or owner
https://www.yamaha-motor.eu/eu/
en/privacy/privacy-policy/
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Table of contents
General and important labels ........... 1Identification numbers .................... 1
Primary Identification (PRI-ID)
number............................................ 1
Craft Identification Number (CIN) ....... 1
Engine serial number.......................... 1
Manufactured date label .................... 2
Model information ........................... 2
Builder’s plate .................................... 2
Important labels .............................. 4
Warning labels.................................... 5
Other labels ........................................ 8
Safety information ............................. 9 Limitations on who may operate the watercraft ............................... 9
Cruising limitations ........................ 10
Operation requirements ................ 11
Recommended equipment ........... 13
Hazard information........................ 14
Watercraft characteristics ............. 14
Wakeboarding and water-skiing ... 16
Safe boating rules ......................... 17
Enjoy your watercraft responsibly ................................. 18
Description....................................... 19 Watercraft glossary ....................... 19
Location of main components ...... 20
Control function operation ............. 24 Watercraft control functions ......... 24
Yamaha Security System ................. 24
Engine start/stop switch ................. 25
Engine shut-off switch .................... 25
Throttle lever .................................... 25
RiDE lever ........................................ 26
Steering system ............................... 26
Adjustable tilt steering system ......... 26
Cooling water pilot outlets ............... 27
Water separator................................ 27
Watercraft operation ...................... 29Watercraft operation functions ..... 29
Shift system ..................................... 29
Electric trim system .......................... 31
Watercraft operation modes ......... 33
Reverse assist .................................. 33
T.D.E.
(thrust directional enhancer) ......... 33
No-wake mode ................................. 34
Drive control mode ........................... 36
Cruise assist ..................................... 37
Instrument operation ...................... 39 Multifunction information center ... 39
Operation buttons ............................ 39
Display.............................................. 39
Home screen ................................... 41
Information screen .......................... 41
Drive control mode screen .............. 42
Setting menu screen ....................... 42
Engine lock screen .......................... 43
Warning function .............................. 44
Audio system (equipped models) ..................... 46
Audio control .................................... 46
Equipment operation ...................... 48Equipment..................................... 48
Seats ................................................ 48
Handgrip........................................... 49
Reboarding grip................................ 49
Reboarding step ............................... 49
Bow eye............................................ 50
Stern eyes ........................................ 50
Cleat ................................................. 50
Storage compartments .................... 51
Fire extinguisher holder and cover ... 53
Operation and handling
requirements ................................... 55Fuel requirements ......................... 55
Fuel................................................... 55
Engine oil requirements ................ 57
Engine oil .......................................... 57
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General and important labels
1
EJU36453
Identification numbers
Record the Primary Identification (PRI-ID)
number, Craft Identification Number (CIN),
and engine serial number in the spaces pro-
vided for assistance when ordering spare
parts from a Yamaha dealer. Also record and
keep these ID numbers in a separate place in
case your watercraft is stolen.
EJU30284Primary Identification (PRI-ID) number
The PRI-ID number is stamped on a plate at-
tached inside the engine compartment. (See
page 48 for seat removal and installation pro-
cedures and page 52 for information on the
seat storage compartment.)
MODEL:
GP1800A-X (GP1800R SVHO)
GP1800C-X (GP1800R SVHO)
EJU36551Craft Identification Number (CIN)
The CIN is stamped on a plate attached to
the aft deck.
EJU40471Engine serial number
The engine serial number is stamped on a
plate attached to the engine unit. (See page
48 for seat removal and installation proce-
dures and page 88 for engine cover removal
and installation procedures.)
1Primary Identification (PRI-ID) number loca-
tion
1
MODELYAMAHA MOTOR CO.,LTD.
ASSEMBLED IN U.S.A. WITH FOREIGN AND DOMESTIC COMPONENTS.
ASSEMBLÉ EN U.S. AVEC DES COMPOSANTS ÉTRANGERS ET
DOMESTIQUES. PRI-I.D.
1
Craft Identification Number (CIN) location
1 Engine serial number location
1
1
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Control function operation
25
EJU46112Engine start/stop switch “ / ”ECJ01311
Do not run the engine over 4000 r/min on
land. Also, do not run the engine for more
than 15 seconds without supplying water,
otherwise the engine could overheat.
The engine start/stop switch (red button)
starts the engine when the switch is pushed
while the engine is stopped, and stops the
engine when the switch is pushed while the
engine is running.
Release the engine start/stop switch as soon
as the engine starts to run. If the engine does
not start in 5 seconds, release the engine
start/stop switch, wait 15 seconds, and then
try again.
The engine will not start under any of the fol-
lowing conditions:
Lock mode of the Yamaha Security System
has been selected. (See page 24 for
Yamaha Security System setting proce- dures.)
Clip is removed from the engine shut-off
switch.
Throttle lever is squeezed.
Throttle lever is malfunctioning.
RiDE lever is squeezed.
RiDE lever is malfunctioning.
EJU31164Engine shut-off switch “ ”
The engine shut-off switch automatically
stops the engine when the clip, on the end of
the engine shut-off cord (lanyard), is removed
from the switch, such as if the operator falls
off the watercraft.
Insert the clip under the engine shut-off
switch before starting the engine.
When the engine is not running, remove the
clip from the engine shut-off switch to pre-
vent accidental starting or unauthorized op-
eration by children or others.
EJU31212Throttle lever
The throttle lever increases the engine speed
when the lever is squeezed.
1 Engine start/stop switch
1
1Engine shut-off switch
2 Clip
3 Engine shut-off cord (lanyard)
1
2
3
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Pre-operation checks
67
EJU45351Yamaha Security System checkMake sure that the Yamaha Security System
operates properly. (See page 24 for Yamaha
Security System setting procedures.)
EJU32666Engine shut-off cord (lanyard) check
Make sure that the engine shut-off cord (lan-
yard) is not damaged. If the cord is damaged,
replace it. WARNING! Never try to repair
the engine shut-off cord (lanyard) or tie it
together. The engine shut-off cord (lan-
yard) may not pull free when the operator
falls off, allowing the watercraft to contin-
ue to run and cause an accident.
[EWJ01222]
EJU46050
Switch checksECJ01311
Do not run the engine over 4000 r/min on
land. Also, do not run the engine for more than 15 seconds without supplying water,
otherwise the engine could overheat.
Check the engine start/stop switch and the
engine shut-off switch for proper operation.
(See page 25 for information on operating
each switch.)
To check the operation of the switches:
(1) If the lock mode is selected for the
Yamaha Security System setting, selectthe unlock mode. (See page 24 for
Yamaha Security System setting proce- dures.)
(2) Push the engine start/stop switch to make sure that the engine starts.
(3) As soon as the engine starts running, push the engine start/stop switch to
1Clip
2 Engine shut-off switch
3 Engine shut-off cord (lanyard)
1 Engine start/stop switch
12
3
1
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Trouble recovery
95
EJU34562
Troubleshooting
If you have any trouble with your watercraft, use the troubleshooting chart to check for the
possible cause.
If you cannot find the cause, consult a Yamaha dealer.
EJU46470Troubleshooting chart
Confirm the possible cause and remedy, and then refer to the applicable page.
TROUBLEPOSSIBLE CAUSE REMEDYPAGE
Engine does not
start (Starter motor
does not turn over) Ya m a h a S e -
curity System
Lock mode selected Select unlock mode
24
Engine shut-
off switch Clip not in place Install clip
25
Fuse Burned out Have serviced by
Yamaha dealer —
Battery Run down Recharge84
Poor terminal con-
nections Tighten as required
84
Terminal corroded Clean or replace 84
Starter motor Faulty Have serviced by
Yamaha dealer —
Engine does not
start (Starter motor
turns over) Throttle lever Squeezed
Release25
Faulty Have serviced by
Yamaha dealer —
RiDE lever Squeezed Release25
Faulty Have serviced by
Yamaha dealer —
Fuel Fuel tank empty Refill as soon as pos-
sible 55
Stale or contaminat-
ed Have serviced by
Yamaha dealer
—
Fuel tank Water or dirt present Have serviced by Yamaha dealer—
Spark plug Fouled or defective Have serviced by Yamaha dealer—
Fuel injec-
tion system Fuel pump faulty Have serviced by
Yamaha dealer —
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Trouble recovery
97
Watercraft slow or
loses powerWatercraft
operation
modeDrive control mode
activated
Deactivate or adjust
drive control mode 36
Cavitation Jet intake clogged Clean 98 Impeller damaged or
worn Have serviced by
Yamaha dealer
98
Engine over-
heat warning Engine speed reduc-
tion control activated Clean jet intake and
cool engine
45
Oil pressure
warning Engine speed reduc-
tion control activated Add oil
45
Spark plug Fouled or defective Have serviced by Yamaha dealer—
Incorrect heat range Have serviced by Yamaha dealer —
Gap incorrect Have serviced by Yamaha dealer —
Electrical wir-
ing Loose connection Have serviced by
Yamaha dealer —
Fuel Stale or contaminat- ed Have serviced by
Yamaha dealer
—
Incorrect octane
number Use correct fuel
55
Air filter Clogged Have serviced by Yamaha dealer—
Oil buildup Have serviced by Yamaha dealer —
Throttle lever Faulty Have serviced by Yamaha dealer—
Audio system does
not activate
(equipped models) Fuse Burned out Have serviced by
Yamaha dealer —
TROUBLE POSSIBLE CAUSE REMEDY PAGE
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Index
103
Launching the watercraft ......................... 72
Learning to operate your watercraft ........ 71
Leaving the watercraft ............................. 73
Limitations on who may operate the watercraft................................................ 9
Long-term storage ................................... 86
Lubrication ............................................... 86
M
Main components, location of ................. 20
Maintenance ............................................ 88
Manufactured date label ............................ 2
Model information ...................................... 2
Multifunction information center .............. 39
Multifunction information center check ... 70
N
No-wake mode ........................................ 34
O
Operating in weeded areas ...................... 81
Operating the watercraft .......................... 73
Operating the watercraft in reverse or neutral ................................................... 76
Operating your watercraft ........................ 71
Operation buttons .................................... 39
Operation requirements ........................... 11
P
Periodic maintenance chart ..................... 90
Post-launch checks ................................. 69
Post-operation care ................................. 83
Pre-launch checks ................................... 64
Pre-operation check points ..................... 64
Pre-operation checklist ............................ 62
Primary Identification (PRI-ID) number ...... 1
R
Raising the reverse gate .......................... 99
Reboarding grip ....................................... 49
Reboarding step ...................................... 49
Recommended equipment ...................... 13
Reverse assist .......................................... 33
RiDE lever................................................. 26
RiDE lever checks .................................... 66
Riding position ......................................... 72
Rustproofing ............................................ 87
S
Safe boating rules .................................... 17
Safety equipment check .......................... 68 Seat storage compartment ...................... 52
Seats ........................................................ 48
Setting menu screen ................................ 42
Shift system ............................................. 29
Shift system check ................................... 70
Starting off ............................................... 79
Starting off from a trailer .......................... 80
Starting the engine on water .................... 72
Steering system ....................................... 26
Steering system checks ........................... 65
Stern drain plug checks ........................... 69
Stern eyes ................................................ 50
Stopping the engine ................................. 73
Stopping the watercraft ........................... 75
Storage compartment checks.................. 68
Storage compartments ............................ 51
Submerged watercraft ........................... 100
Switch checks .......................................... 67
T
T.D.E. (thrust directional enhancer) .......... 33
Throttle lever ............................................ 25
Throttle lever checks ................................ 66
Towing the watercraft ............................ 100
Transporting on a trailer ........................... 60
Troubleshooting ....................................... 95
Troubleshooting chart .............................. 95
Turning the watercraft .............................. 74
W
Wakeboarding and water-skiing .............. 16
Warning function ...................................... 44
Water separator ....................................... 27
Water separator check ............................. 64
Watercraft characteristics ........................ 14
Watercraft control functions..................... 24
Watercraft operation functions ................ 29
Watercraft operation modes .................... 33
Y
Yamaha Security System ......................... 24
Yamaha Security System check .............. 67
Yamaha Security System setting ............. 24
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