YAMAHA GP1800 2017 Service Manual

Watercraft operation
35
EJU40001
Watercraft operation modes
EJU36787Low RPM Mode
The Low RPM Mode is a function that limits
the maximum engine speed to approximately
70% of the maximum engine speed in the
normal mode.
The Low RPM Mode can only be activated
and deactivated by operating the remote
control transmitter that is included with this
watercraft. (See page 25 for information on
the remote control transmitter.)
TIP:
The Low RPM Mode can only be activated
when the engine is stopped in the unlock
mode of the Yamaha Security System.
Activating and deactivating the Low RPM
Mode
Activation of the Low RPM Mode will be con-
firmed by the number of beeps when the re-
mote control transmitter is operated, and by
the “L-MODE” indicator light of the multifunc-
tion information center. (See page 37 for in-
formation on the multifunction information
center.)
TIP:
If the remote control transmitter is operated
while the multifunction information center is
in the standby state, the center performs the
initial operation, and then the setting is se-
lected.
To activate the Low RPM Mode:
Push the “L-Mode” (unlock) button on the re-
mote control transmitter for more than 4 sec-
onds. Once the beeper sounds three times
and the “UNLOCK” indicator light blinks
three times, then comes on, the “L-MODE”
indicator light comes on and the Low RPM
Mode is activated.
TIP:
If the Low RPM Mode is activated immediate-
ly after the information display turns off, the
“L-MODE” indicator light will not come on.1Remote control transmitter
Number of
beepsLow RPM Mode
operation“L-
MODE”
indicator
light
ActivatedComes
on
Deactivated Goes off
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Watercraft operation
36
The “L-MODE” indicator light will come on
when the engine is started.
To deactivate the Low RPM Mode:
Push the “L-Mode” (unlock) button on the re-
mote control transmitter for more than 4 sec-
onds. Once the beeper sounds two times and
the “UNLOCK” indicator light blinks two
times, then comes on, the “L-MODE” indica-
tor light goes off and the Low RPM Mode is
deactivated. When the Low RPM Mode is de-
activated, the watercraft returns to the nor-
mal operation mode.
1“L-Mode” (unlock) button
1“UNLOCK” indicator light
2“L-MODE” indicator light
L-Mode1
12
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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
38
TIP:
“MPH” is selected as the display unit at the
Yamaha factory.
To switch the speedometer display units:
Start the engine, stop the engine, and then
push the engine stop switch 3 times, pushing
the switch for 0.4 seconds or more each time,
before the multifunction information center
turns off. The speedometer display units
change.
To switch the speedometer display units
again, repeat this procedure.
EJU31464Tachometer
The tachometer shows the engine speed.The outer numbers × 1000 r/min and display
segments on the meter show the engine
speed.
EJU43891Shift indicator
This indicator shows the reverse gate shift
positions: “F” (forward), “N” (neutral), and “R”
(reverse). (See page 31 for shifting proce-
dures.)
EJU44010Trim indicator
This indicator shows the trim angle of the jet
thrust nozzle. One of the two upper display
segments will be shown when the trim angle
is increased, and one of the two lower display
segments will be shown when the trim angle
is decreased. When the neutral position of
the jet thrust nozzle is selected, the middle
1Engine stop switch
1Speedometer
1
1
1Tachometer
1Shift indicator
2“F” (Forward position)
3“N” (Neutral position)
4“R” (Reverse position)
1
2
3
41
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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 51 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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Instrument operation
40
EJU44730Engine overheat warning
If the engine temperature rises significantly,
the engine overheat warning indicator, the
check engine warning indicator, and the
“WARNING” indicator light blink, and the
buzzer sounds intermittently. After 5 sec-
onds, the engine overheat warning indicator
and the “WARNING” indicator light stop
blinking and remain on, and the buzzer
sounds continuously. After 30 seconds, the
buzzer stops. While the engine overheat
warning is activated, the maximum engine
speed is limited.
If the engine overheat warning is activated,
immediately reduce the engine speed, return
to shore, and then make sure that water is
being discharged from the port (left) cooling
water pilot outlet while the engine is running.
If there is no discharge of water, stop the en-
gine, and then check the jet intake for clog-
ging. (See page 92 for information on the jet
intake.) NOTICE: If you cannot locate and
correct the cause of the overheating, con-
sult a Yamaha dealer. Continuing to oper-ate at higher speeds could result in severe
engine damage. [ECJ00042]
EJU43731
Check engine warning
If a sensor malfunction or a short circuit is de-
tected, the check engine warning indicator
and the “WARNING” indicator light blink, and
the buzzer sounds intermittently for 30 sec-
onds.
If the engine is stopped after the check en-
gine warning is activated, the information dis-
play will indicate an error code.
If the check engine warning is activated, im-
mediately reduce the engine speed, return to
shore, and have a Yamaha dealer check the
engine.
EJU43740Hour meter
The hour meter shows the total number of
hours that the engine has been running since
the watercraft was new.
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Instrument operation
41
TIP:
The elapsed time will be kept even if the bat-
tery terminals have been disconnected.
EJU43751Voltmeter
The voltmeter shows the battery voltage.
When the battery voltage is normal, the volt-
meter displays approximately 12 volts.
If the battery voltage has dropped significant-
ly, “Lo” is displayed on the voltmeter, and the
information display, hour meter, and indicator
lights turn off. If the battery voltage has risen
significantly, “HI” is displayed. If “Lo” or “HI”
is displayed, immediately return to shore and
have a Yamaha dealer service the watercraft.
1Hour meter
1Vo l t m et e r
1
1
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Equipment operation
42
EJU40334
EquipmentEJU42203Seats
The front and rear seats are removable.
Remove the seats to access the engine com-
partment and removable watertight storage
compartment.
To remove the rear seat:
(1) Pull the rear seat latch up, and then lift up
the rear of the seat.
(2) Pull the seat rearward and remove it.To install the rear seat:
(1) Insert the projections on the front of the
seat into the stays on the deck.
(2) Push the rear of the seat down to secure-
ly lock it in place.
To remove the front seat:
(1) Remove the rear seat.
(2) Pull the front seat latch up, and then lift
up the rear of the seat.
1Seat latch
1
1Seat latch
1
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Equipment operation
43
(3) Pull the seat rearward and remove it.
To install the front seat:
(1) Insert the projection on the front of the
seat into the stay on the deck.
(2) Push the rear of the seat down to secure-
ly lock it in place.
(3) Securely install the rear seat in its original
position.
EJU31364Handgrip
The handgrip is used when boarding the wa-
tercraft from the water and when the spotter
is facing rearward. WARNING! Do not use
the handgrip to lift the watercraft. The
handgrip is not designed to support the
watercraft’s weight. If the handgrip
breaks, the watercraft could fall, which
could result in severe injury.
[EWJ00022]
EJU34865
Reboarding step
The reboarding step is used to assist in re-
boarding the watercraft from the water.
When boarding the watercraft, push the re-
boarding step down until it stops. The step
returns automatically to its original position
when released. WARNING! Do not use the
reboarding step to lift the watercraft. The
reboarding step is not designed to support
the watercraft’s weight. If the reboarding
1Handgrip
1
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Equipment operation
44
step breaks, the watercraft could fall,
which could result in severe injury.
[EWJ01212]
NOTICE
ECJ00743
Use the reboarding step only to board the
watercraft in the water. Do not use the re-
boarding step for any other purpose. The
watercraft can be damaged.
EJU34873Bow eye
The bow eye is used to attach a rope to the
watercraft when transporting, mooring, or
towing it in an emergency. (See page 96 for
information on towing the watercraft.)
EJU34882Stern eyes
The stern eyes are used to attach a rope to
the watercraft when transporting or mooring
it.
EJU40423Cleat
The cleat is used to attach a ski rope to the
watercraft when pulling a wakeboarder or
water-skier. WARNING! Do not use the
cleat to lift the watercraft. The cleat is not
designed to support the watercraft’s
weight. If the cleat breaks, the watercraft
1Reboarding step
1
1Bow eye
1Stern eye
1
1
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