
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 ........................................ 9
Safety information ........................... 11 Limitations on who may operate the watercraft ............................. 11
Cruising limitations ........................ 12
Operation requirements ................ 13
Recommended equipment ........... 15
Hazard information........................ 16
Watercraft characteristics ............. 16
Wakeboarding and water-skiing ... 18
Safe boating rules ......................... 19
Enjoy your watercraft responsibly ................................. 20
Description....................................... 21 Watercraft glossary ....................... 21
Location of main components ...... 22
Control function operation ............. 26 Watercraft control functions ......... 26
Remote control transmitter .............. 26
Yamaha Security System ................. 27
Engine stop switch .......................... 28
Engine shut-off switch .................... 28
Start switch ..................................... 28
Throttle lever .................................... 29
Steering system ............................... 29
Telescopic steering system.............. 30
Cooling water pilot outlets ............... 30
Water separator................................ 31
Watercraft operation ...................... 32Watercraft operation functions ..... 32
Reverse system ................................ 32
Quick Shift Trim System
(Q.S.T.S.) ....................................... 32
Watercraft operation modes ......... 34
Low RPM Mode ............................... 34
Instrument operation ...................... 36Dual analog meter unit.................. 36
Speedometer.................................... 36
Tachometer ...................................... 36
Information display ........................... 37
Equipment operation ...................... 41Equipment..................................... 41
Seats ................................................ 41
Handgrips ......................................... 42
Reboarding grip................................ 42
Reboarding step ............................... 42
Bow eye............................................ 43
Stern eyes ........................................ 43
Cleat ................................................. 43
Storage compartments .................... 44
Fire extinguisher holder and cover ... 47
Operation and handling
requirements ................................... 49Fuel requirements ......................... 49
Fuel................................................... 49
Engine oil requirements ................ 51
Engine oil .......................................... 51
Draining the bilge water ................ 52
Draining the bilge water on land....... 52
Draining the bilge water on water .... 53
Transporting on a trailer................ 54
First-time operation ........................ 55 Engine break-in............................. 55
Pre-operation checks ..................... 56
Pre-operation checklist .................... 56
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General and important labels
1
EJU36452
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.
EJU41351Primary Identification (PRI-ID) number
The PRI-ID number is stamped on a plate at-
tached inside the engine compartment. (See
page 41 for seat removal and installation pro-
cedures and page 46 for information on the
watertight storage compartment.)
MODEL:
GX1800A-P (FZS 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
41 for seat removal and installation proce-
dures and page 85 for engine cover removal
and installation procedures.)
1Primary Identification (PRI-ID) number loca-
tion
1
MODELYAMAHA MOTOR CO., LTD.
ASSEMBLED IN U.S.A. FROM AMERICAN AND JAPANESE
COMPONENTS.
ASSEMBLÉ AUX ÉTATS-UNIS DE PIÈCES AMÉRICANES ET
JAPONAISES.
PRI-I.D.F3K
F3K
1Craft Identification Number (CIN) location
1 Engine serial number location
1
1
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Instrument operation
36
EJU37433
Dual analog meter unit
The dual analog meter unit displays various
watercraft information.
Dual analog meter unit initial operation
When the dual analog meter unit is activated,
the speedometer and tachometer make one
sweep, all of the display segments and indi-
cator lights come on. After 2 seconds, the
“WARNING” indicator light and the warning
indicators in the information display go off,
and then the unit starts to operate normally.
TIP:
The “UNLOCK” indicator light will go off
when the engine is started.
Dual analog meter unit standby state
If the dual analog meter unit does not receive
any operation input within 25 seconds after
the engine stops, the unit will turn off and en-
ter a standby state. When the engine is start-
ed again, the displays return to their state
before the unit turned off, and then the unit
starts to operate normally.
EJU37444Speedometer
The speedometer shows the watercraft
speed against water.
The small inner numbers on the meter show
the watercraft speed in kilometers per hour
“km/h” and the large outer numbers show the
speed in miles per hour “mph”.
EJU37245Tachometer
The tachometer shows the engine speed.
The numbers on the meter show the engine
speed × 1000 rpm (r/min).
1 Speedometer
2 Information display
3 Tachometer
4 “Hour Volt” button
5 “UNLOCK” indicator light
6 “L-MODE” indicator light
7 “WARNING” indicator light
123
7
654
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Pre-operation checks
63
EJU32664Engine 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.
[EWJ01221]
EJU32676
Switch checks
NOTICE
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.
Check the start switch, the engine stop
switch, and the engine shut-off switch for proper operation. (See pages 28 to 28 for in-
formation 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 27 for
Yamaha Security System setting proce- dures.)
(2) Push the start switch to make sure that the engine starts.
(3) As soon as the engine starts running, push the engine stop switch to make
sure that the engine stops immediately.
(4) Restart the engine, and then pull the en- gine shut-off cord (lanyard) to remove
the clip from the engine shut-off switch
to make sure that the engine stops im-
mediately.
EJU40102Storage compartment checks
Make sure that the storage compartments
are not damaged and that water has not col-
lected in the compartments. (See page 44 for
information on the storage compartments.)
1Engine shut-off switch
2 Clip
3 Start switch
4 Engine stop switch
5 Engine shut-off cord (lanyard)
23
1
5
4
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Operation
72
Operate defensively at safe speeds and
keep a safe distance away from people,
objects, and other watercraft to give you
time to stop.
Do not shut the engine off when slowing
down in case you need engine power to
steer away from a boat or other obstacle
that comes into your path.
Do not use the reverse function to slow
down or stop the watercraft as it could
cause you to lose control, be ejected, or
impact the handlebars.
EJU40372Operating the watercraft in reverse
Pull the shift lever rearward to the reverse po-
sition. The watercraft will move in reverse.
(See page 32 for information on the reverse
system.)Make sure that there are no obstacles or peo-
ple behind you before shifting into reverse.
TIP:
This model is equipped with a function which
limits the engine speed in reverse.
EJU36087Boarding the watercraft
WARNING
EWJ01112
Be sure the operator and any passengers
have practiced boarding from the water
while still close to shore before riding. A
person who has made many unsuccessful
attempts to get back on the watercraft
may become fatigued and suffer from ex-
posure, increasing the risk of injury and
drowning.
Board the watercraft in water free from
weeds and debris and at least 60 cm (2 ft)
deep from the bottom of the watercraft.
NOTICE: Never run the engine in water
that is less than 60 cm (2 ft) deep from the
bottom of the watercraft, otherwise peb-
bles or sand could be sucked into the jet
intake, causing impeller damage and en-
gine overheating.
[ECJ00473]
TIP:
This watercraft is equipped with a reboarding
step, which can be lowered and used to as-
sist in reboarding. (See page 42 for informa-
tion on operating the reboarding step.)
1 Shift lever
2 Reverse position
1
2
60 cm (2 ft)
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Trouble recovery
91
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.
EJU36986Troubleshooting 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
27
Engine shut-
off switch Clip not in place Install clip
28
Fuse Burned out Replace fuse and
check wiring 95
Battery Run down Recharge80
Poor terminal con-
nections Tighten as required
80
Terminal corroded Clean or replace 80
Starter motor Faulty Have serviced by
Yamaha dealer —
Engine does not
start (Starter motor
turns over) Throttle lever Squeezed
Release28
Fuel Fuel tank empty Refill as soon as pos-
sible 49
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—
Spark plug
cap Not connected or
loose Have serviced by
Yamaha dealer
—
Connected to wrong
cylinder Have serviced by
Yamaha dealer
—
Fuel injec-
tion system Fuel pump faulty Have serviced by
Yamaha dealer —
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Trouble recovery
93
Watercraft slow or
loses powerShift lever Not completely shift-
ed into forward posi-
tion Push lever forward
until it stops 32
Watercraft
operation
mode Low RPM Mode acti-
vated
Deactivate Low RPM
Mode 34
Cavitation Jet intake clogged Clean 94 Impeller damaged or
worn Have serviced by
Yamaha dealer
94
Engine over-
heat warning Engine speed reduc-
tion control activated Clean jet intake and
cool engine
39
Oil pressure
warning Engine speed reduc-
tion control activated Add oil
38
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 —
Spark plug
cap Not connected or
loose 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
49
Air filter Clogged Have serviced by Yamaha dealer—
Oil buildup Have serviced by Yamaha dealer —
TROUBLE POSSIBLE CAUSE REMEDY PAGE
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Index
99
Long-term storage ................................... 83
Low RPM Mode ....................................... 34
Lubrication ............................................... 83
M
Main components, location of ................. 22
Maintenance ............................................ 85
Manufactured date label ............................ 2
Model information ...................................... 2
O
Oil pressure warning ................................ 38
Operating in weeded areas ...................... 78
Operating the watercraft .......................... 69
Operating the watercraft in reverse ......... 72
Operating your watercraft ........................ 67
Operation requirements ........................... 13
P
Periodic maintenance chart ..................... 87
Post-launch checks ................................. 65
Post-operation care ................................. 79
Pre-launch checks ................................... 58
Pre-operation check points ..................... 58
Pre-operation checklist ............................ 56
Primary Identification (PRI-ID) number ...... 1
Q
Quick Shift Trim System (Q.S.T.S.) .......... 32
Quick Shift Trim System (Q.S.T.S.) checks .................................................. 61
R
Reboarding grip ....................................... 42
Reboarding step ...................................... 42
Recommended equipment ...................... 15
Remote control transmitter ...................... 26
Remote control transmitter check ........... 62
Reverse system........................................ 32
Reverse system checks ........................... 61
Riding position ......................................... 68
Rustproofing ............................................ 83
S
Safe boating rules .................................... 19
Safety equipment check .......................... 64
Seats ........................................................ 41
Speedometer ........................................... 36
Start switch .............................................. 28
Starting off ............................................... 75
Starting off from a trailer .......................... 76 Starting the engine on water .................... 68
Steering system ....................................... 29
Steering system checks ........................... 60
Stern drain plug checks ........................... 64
Stern eyes ................................................ 43
Stopping the engine ................................. 69
Stopping the watercraft ........................... 71
Storage compartment checks.................. 63
Storage compartments ............................ 44
Submerged watercraft ............................. 97
Switch checks .......................................... 63
T
Tachometer .............................................. 36
Telescopic steering system...................... 30
Telescopic steering system checks ......... 61
Throttle lever ............................................ 29
Throttle lever checks ................................ 62
Tool kit ..................................................... 85
Towing the watercraft .............................. 97
Transporting on a trailer ........................... 54
Troubleshooting ....................................... 91
Troubleshooting chart .............................. 91
Turning the watercraft .............................. 70
W
Wakeboarding and water-skiing .............. 18
Water separator ....................................... 31
Water separator check ............................. 58
Watercraft characteristics ........................ 16
Watercraft control functions..................... 26
Watercraft operation functions ................ 32
Watercraft operation modes .................... 34
Watertight storage compartment ............. 46
Y
Yamaha Security System ......................... 27
Yamaha Security System settings ........... 27
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