2018 YAMAHA GP1800 engine oil

Table of contents
General and important labels ........... 1
Identification 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 ........................... 10
Limitations on who may operate
the watercraft ............................. 10
Cruising limitations ........................ 11
Operation requirements ................ 12
Recommended equipment ........... 14
Hazard information........................ 15
Watercraft characteristics ............. 15
Wakeboarding and water-skiing ... 17
Safe boating rules ......................... 18
Enjoy your watercraft
responsibly ................................. 19
Description....................................... 20
Watercraft glossary ....................... 20
Location of main components ...... 21
Control function operation ............. 25
Watercraft control functions ......... 25
Remote control transmitter .............. 25
Yamaha Security System ................. 26
Engine stop switch .......................... 27
Engine shut-off switch .................... 27
Start switch ..................................... 27
Throttle lever .................................... 28
RiDE lever ........................................ 28
Steering system ............................... 28
Cooling water pilot outlets ............... 29
Water separator................................ 29
Watercraft operation ...................... 31
Watercraft operation functions ..... 31
Shift system ..................................... 31
Electric trim system .......................... 33
Watercraft operation modes ......... 35
Low RPM Mode ............................... 35
Instrument operation ...................... 37
Multifunction information center ... 37
Information display ........................... 37
Hour meter ....................................... 40
Voltmeter .......................................... 41
Equipment operation ...................... 42
Equipment..................................... 42
Seats ................................................ 42
Handgrip........................................... 43
Reboarding step ............................... 43
Bow eye............................................ 44
Stern eyes ........................................ 44
Cleat ................................................. 44
Storage compartments .................... 45
Fire extinguisher holder and cover ... 47
Operation and handling
requirements ................................... 49
Fuel requirements ......................... 49
Fuel................................................... 49
Engine oil requirements ................ 52
Engine oil .......................................... 52
Draining the bilge water ................ 53
Draining the bilge water on land....... 53
Draining the bilge water on water .... 54
Transporting on a trailer................ 55
First-time operation ........................ 56
Engine break-in............................. 56
Pre-operation checks ..................... 57
Pre-operation checklist .................... 57
Pre-operation check points .......... 59
Pre-launch checks ........................... 59
Post-launch checks.......................... 65
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Table of contents
Operation ......................................... 67
Operating your watercraft ............. 67
Getting to know your watercraft ...... 67
Learning to operate your
watercraft ...................................... 67
Riding position ................................. 68
Launching the watercraft ................. 68
Starting the engine on water ............ 68
Stopping the engine ......................... 69
Leaving the watercraft...................... 69
Operating the watercraft .................. 69
Turning the watercraft ...................... 70
Stopping the watercraft ................... 71
Operating the watercraft in reverse
or neutral....................................... 72
Boarding the watercraft ................... 73
Starting off........................................ 75
Capsized watercraft ......................... 76
Beaching and docking the
watercraft ...................................... 77
Operating in weeded areas .............. 77
After removing the watercraft from
the water ....................................... 78
Care and storage............................. 79
Post-operation care ...................... 79
Flushing the cooling water
passages....................................... 79
Cleaning the watercraft .................... 80
Battery care ...................................... 80
Long-term storage ........................ 83
Cleaning ........................................... 83
Lubrication ....................................... 83
Rustproofing..................................... 83
Maintenance .................................... 84
Maintenance.................................. 84
Tool kit.............................................. 84
Removing and installing the engine
cover ............................................. 84
Periodic maintenance chart ............. 86
Engine oil and oil filter ...................... 88
Specifications .................................. 89
Specifications ............................... 89
Trouble recovery ............................. 90
Troubleshooting ............................ 90
Troubleshooting chart ...................... 90
Emergency procedures ................ 93
Cleaning the jet intake and
impeller ......................................... 93
Raising the reverse gate .................. 94
Jumping the battery ......................... 94
Replacing the fuses .......................... 95
Towing the watercraft....................... 97
Submerged watercraft ..................... 97
Index................................................. 99
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Safety information
19
EJU30992
Enjoy your watercraft
responsibly
You share the areas you enjoy when riding
your watercraft 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 courte-
sy.
Whenever and wherever you ride, think of
yourself as the guest of those around you.
Remember, for example, that the sound of
your watercraft may be music to you, but it
could be just noise to others. And the exciting
splash of your wake can make waves others
won’t enjoy.
Avoid riding close to shoreline homes and
waterfowl nesting areas or other wildlife ar-
eas, and keep a respectful distance from fish-
ermen, other boats, swimmers, and
populated beaches. When travel in areas like
these is unavoidable, ride slowly and obey all
laws.
Proper maintenance is necessary to ensure
that the exhaust emission and sound levels of
your watercraft will continue to be within reg-
ulated limits. You have the responsibility to
make sure that the recommended mainte-
nance in this owner’s/operator’s manual is
carried out.
Remember, pollution can be harmful to the
environment. Do not refuel or add oil where a
spill could cause damage to nature. Remove
your watercraft from the water and move it
away from the shoreline before refueling. Dis-
pose of water and any fuel and oil residue in
the engine compartment according to local
regulations. And keep your surroundings
pleasant for the people and wildlife that share
the waterways: don’t litter.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.
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Description
24
Engine compartment
3
4
125
11
10
9
12
86
7
1Dipstick
2Engine oil filler cap (page 52)
3Electrical box
4Battery (page 60)
5Removable watertight storage compart-
ment (page 47)
6Flushing hose connector (page 79)
7Spark plug/Ignition coil8Engine cover
9Water separator (page 29)
10Fuel tank
11Air filter case
12Glove compartment (page 46)
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Instrument operation
37
EJU43760
Multifunction information
center
The multifunction information center displays
various watercraft information.
Multifunction information center initial op-
eration
When the multifunction information center is
activated, all of the display segments come
on. After 2 seconds, the warning indicators in
the information display go off, and then the
center starts to operate normally.
If only the multifunction information center is
activated, the “WARNING” indicator light
blinks once.
TIP:
The “UNLOCK” indicator light also comes on
as part of the initial operation.
The “UNLOCK” indicator light will go off
when the engine is started.
Multifunction information center standby
state
If the multifunction information center does
not receive any operation input within 25 sec-
onds after the engine stops, the center will
turn off and enter a standby state. When the
engine is started again, the displays return totheir state before the center turned off, and
then the center starts to operate normally.
EJU35027Information display
The information display shows watercraft op-
erating conditions.
EJU43832Speedometer
The speedometer shows the watercraft
speed against water.
By switching the display units, the speed can
be shown in kilometers per hour “km/h” or
miles per hour “MPH”.
1“UNLOCK” indicator light
2Information display
3“L-MODE” indicator light
4“WARNING” indicator light
123
4
1Trim indicator
2Tachometer
3Speedometer
4Oil pressure warning indicator
5Engine overheat warning indicator
6Check engine warning indicator
7Shift indicator
8Fuel level warning indicator
9Fuel level meter
1Speedometer
213
456879
1
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Instrument operation
39
display segment will be shown. (See page 33
for trim angle selection procedures.)
EJU31515Fuel level meter
The fuel level meter shows the amount of fuel
remaining in the fuel tank. The amount of re-
maining fuel is shown using eight display
segments, which disappear two at a time as
the fuel level decreases.
TIP:
The accuracy of the fuel level meter varies
depending on the operating conditions. Use
this function as a reference only.
EJU44020Fuel level warning
If the fuel remaining in the fuel tank drops to
about 18 L (4.8 US gal, 4.0 Imp.gal), the low-
est two fuel level segments, the fuel level
warning indicator, and the “WARNING” indi-cator light blink, and the buzzer sounds inter-
mittently for 30 seconds.
If the fuel level warning is activated, refill the
fuel tank as soon as possible. (See page 49
for information on filling the fuel tank.)
After the fuel tank is refilled, the warning sig-
nals will be cleared when the engine is re-
started.
EJU43720Oil pressure warning
If the oil pressure drops significantly, the oil
pressure warning indicator, the check engine
warning indicator, and the “WARNING” indi-
cator light blink, and the buzzer sounds inter-
mittently for 30 seconds. At the same time,
the maximum engine speed is limited.
If the oil pressure warning is activated, imme-
diately reduce the engine speed, return to
shore, and then check the engine oil level.
(See page 52 for information on checking the
engine oil level.) If the oil level is sufficient,
have a Yamaha dealer check the watercraft.
1Trim indicator
1Fuel level meter
1
1
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Operation and handling requirements
52
EJU40291
Engine oil requirementsEJU41513Engine oil
NOTICE
ECJ00282
Use only 4-stroke engine oil. Usage of 2-
stroke engine oil could result in severe en-
gine damage.
TIP:
When the engine is operated at high speeds,
some engine oil may be consumed. Be sure
to check the engine oil level.
Checking the engine oil level
WARNING
EWJ00341
Engine oil is extremely hot immediately af-
ter the engine is turned off. Coming in con-
tact with or getting any engine oil on your
clothes could result in burns.
NOTICE
ECJ01002
Make sure that debris and water do not
enter the oil filler hole. Debris and water in
the engine oil can cause serious engine
damage.
To check the engine oil level:
(1) Place the watercraft in a precisely level
position on land with the engine
stopped. If the engine was running, allow
the engine oil to settle by waiting 5 minu-
tes or more before checking the oil level.
(2) Remove the seats. (See page 42 for seat
removal and installation procedures.)(3) Remove the dipstick and wipe it clean.
(4) Insert the dipstick back into the dipstick
tube completely. Remove the dipstick
again and make sure that the engine oil
level is between the minimum and maxi-
mum level marks.
(5) If the engine oil level is significantly
above the maximum level mark, consult
a Yamaha dealer. If the engine oil level is
below the minimum level mark, add en-
gine oil. Recommended engine oil type:
SAE 10W-30, 10W-40, 20W-40,
20W-50
Recommended engine oil grade:
API SG, SH, SJ, SL
1Dipstick
1Maximum level mark
2Minimum level mark
1
1
2
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Operation and handling requirements
53
(6) Loosen the engine oil filler cap and re-
move it.
(7) Slowly add engine oil.
TIP:
The difference between the minimum and
maximum level marks on the dipstick is equal
to approximately 1 L (1.06 US qt, 0.88 Imp.qt)
of engine oil.
(8) Wait approximately 5 minutes to allow
the engine oil to settle, and then check
the engine oil level again.
(9) Repeat steps 3–8 until the engine oil is at
the proper level.
(10) Securely install the engine oil filler cap by
tightening it until it stops.
(11) Securely install the seats in their original
positions.
EJU40022
Draining the bilge water
NOTICE
ECJ01302
Do not run the engine at full throttle when
bilge water remains in the engine com-
partment. The bilge water can splash into
the engine, which can result in severe
damage.
EJU44260Draining the bilge water on land
To drain the bilge water on land:
(1) Loosen the stern drain plugs and remove
them.
(2) Raise the bow of the watercraft, such as
by placing the watercraft on a slope, to
drain the bilge water from the engine
compartment.
(3) After the bilge water has drained from the
stern drain plug holes, wipe up any re-
maining moisture in the engine compart-
ment with a dry cloth.
(4) Check that the stern drain plugs and O-
rings on the plugs are not damaged and
that there is no foreign material on the
threads or O-rings on the plugs.
NOTICE: Before installing the stern
drain plugs, clean the drain plug
threads and the O-rings on the plugs
to remove any foreign materials, such
as dirt or sand. Otherwise, the stern1Engine oil filler cap
1
1Stern drain plug
1
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