ECU YAMAHA GP1800 2017 Owner's Manual

Pre-operation checks
60
aged, obstructed, or not connected prop-
erly.
[EWJ00452]
Make sure that the electrolyte level is be-
tween the minimum and maximum level
marks. WARNING! Never operate the wa-
tercraft if the battery does not have suffi-
cient power to start the engine or if it
shows any other signs of decreased pow-
er. Loss of battery power may leave you
stranded.
[EWJ01241]
Make sure that the battery is securely held in
place.
EJU32614Steering system checks
Turn the handlebars to the right and left sev-
eral times to make sure that operation is
smooth and unrestricted throughout thewhole range, and that the free play is not ex-
cessive.
Turn the handlebars as far as possible to the
right and left to make sure that the jet thrust
nozzle moves as the handlebars are turned,
and that there is no difference between the
1Negative (–) battery terminal: Black lead
2Positive (+) battery terminal: Red lead
3Breather hose
1Maximum level mark
2Minimum level mark
13
2
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Pre-operation checks
61
right and left fully turned positions of the jet
thrust nozzle.
EJU43213RiDE lever checks
Operate the RiDE lever several times to make
sure that operation is smooth throughout the
whole range. Also, make sure that the RiDElever returns automatically to its fully closed
position when released.
EJU42181Throttle lever checks
Operate the throttle lever several times to
make sure that operation is smooth through-
out the whole range. Also, make sure that the
throttle lever returns automatically to its fully
closed (idle) position when released.
EJU40113Remote control transmitter check
Make sure that the remote control transmitter
operates properly. (See page 26 for Yamaha
Security System setting procedures and
page 35 for Low RPM Mode activation pro-
cedures.)
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- Difference between fully turned posi-
tions of jet thrust nozzle (distances A
and B):
Maximum 5 mm (0.20 in)
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Pre-operation checks
62
yard) may not pull free when the operator
falls off, allowing the watercraft to conti-
nue 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 27 to 27 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, select
the unlock mode. (See page 26 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 45 for
information on the storage compartments.)
EJU43800Fire extinguisher holder, cover, and band
checks
Make sure that the fire extinguisher holder,
cover, and band are not damaged and that
the fire extinguisher is securely held in place
using the band. (See page 47 for information
on the fire extinguisher holder, cover, and
band.)
1Clip
2Engine shut-off switch
3Start switch
4Engine stop switch
5Engine shut-off cord (lanyard)
12 3
5 4
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Pre-operation checks
63
EJU32544Fire extinguisher check
Check that there is a full fire extinguisher on
board.
To check the fire extinguisher, see the in-
structions supplied by the fire extinguisher
manufacturer. Always keep the fire extin-
guisher secured in the holder with its cover in
place.
Always carry a fire extinguisher on board. A
fire extinguisher is not standard equipment
with this watercraft. If you do not have one,
contact a Yamaha dealer or a fire extinguish-
er dealer to obtain one meeting the proper
specifications.
EJU40122Safety equipment check
Check that safety equipment meeting the ap-
plicable regulations is on board.
EJU32353Hull and deck check
Check the hull and deck for damage or other
problem.
EJU32657Jet intake checks
Make sure that the jet intake is not damaged
or clogged with weeds or debris. If the jet in-
take is clogged, clean it. (See page 92 for in-
formation on the jet intake.)
EJU43221Jet thrust nozzle and reverse gate check
Check the jet thrust nozzle and reverse gate
for damage or other problem.
EJU44250Stern drain plug checks
Loosen the stern drain plugs and remove
them, and then make sure that the 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 stern drain plugs could be damaged,
allowing water to enter the engine com-
partment. Check the O-rings on the stern
drain plugs and make sure that the plugs
are tightened securely before launching
the watercraft. Otherwise, water may
flood the engine compartment and cause
the watercraft to submerge.
[ECJ00363]
1Stern drain plug
2O-ring
2
1
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Pre-operation checks
64
Securely install the stern drain plugs by tight-
ening them until they stop.
EJU43810Hood check
Push down the hood latch and make sure
that it is securely closed.
EJU40146Post-launch checks
Perform the post-launch checks in the pre-
operation checklist while the watercraft is in
the water and the engine is running.
To perform the post-launch checks:
(1) Launch the watercraft. (See page 67 for
information on launching the watercraft.)
(2) Perform the checks and make sure that
there are no malfunctioning items or oth-
er problems.
EJU41811Cooling water pilot outlet check
Make sure that water is discharged from the
port (left) cooling water pilot outlet while the
engine is running. (See page 29 for informa-
tion on the cooling water pilot outlets.)
EJU32715Multifunction information center check
Make sure that the multifunction information
center operates properly. (See page 37 for in-
formation on proper operation of the multi-
function information center.)
EJU43392Shift system check
Operate the throttle lever and RiDE lever, and
check that the watercraft moves or does not
move according to the displayed shift indica-
tor. (See page 31 for shift system operation
procedures.) WARNING! To avoid colli-
sions, operate at safe speeds and keep a
1Stern drain plug
1
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Operation
67
EJU40212Riding position
Operator riding position
The operator should grip the handlebars firm-
ly with both hands and sit astride the seat
with both feet on the floor of the footwell.
Passenger riding position
The passenger(s) should hold on firmly, either
to the person in front of them or to the hand-
grip provided, and sit astride the seat with
their feet on the floor of the footwell. Never al-
low a passenger to ride in front of the opera-
tor. (See page 17 for information on the riding
position when pulling a wakeboarder or wa-
ter-skier.)
EJU32803Launching the watercraft
When launching the watercraft, make sure
that there are no obstacles around you.
If the watercraft is launched from a trailer,
someone should make sure that waves do
not push the watercraft into the trailer.
EJU36346Starting the engine on water
WARNING
EWJ01531
Do not apply throttle when anyone is at the
rear of the watercraft. Turn the engine off
or keep it at idle. Water and debris exiting
the jet thrust nozzle can cause severe in-
jury.
To start the engine:
(1) If the lock mode is selected for the
Yamaha Security System setting, select
the unlock mode. (See page 26 for
Yamaha Security System setting proce-
dures.)
(2) Move the watercraft to an area that is
free from weeds and debris, and has a
water depth of at least 60 cm (2 ft) 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
pebbles or sand could be sucked into
the jet intake, causing impeller dam-
age and engine overheating.
[ECJ00473]
(3) Attach the engine shut-off cord (lanyard)
to your left wrist, and then attach the clip
to the engine shut-off switch. (See page
27 for information on operating the en-
gine shut-off switch.) WARNING! Check
that the engine shut-off cord (lanyard)
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Operation
73
(2) Pull yourself up to a kneeling position on
the boarding platform, and then move to
the seat and sit astride.
(3) Attach the engine shut-off cord (lanyard)
to your left wrist, and then attach the clip
to the engine shut-off switch.
(4) Grip the handlebars with both hands and
place both feet on the floor of the foot-
well.
(5) Look in all directions, start the engine,
and then start off slowly.
EJU43260Boarding with passenger(s)
WARNING
EWJ01800
Severe internal injuries can occur if wa-
ter is forced into body cavities as a re-
sult of being near the jet thrust nozzle.
Do not start the engine until the passen-
gers are seated with their feet on the
floor of the footwell and are securelyholding on to the person in front of them
or to the handgrip provided.
Before boarding the watercraft, make
sure that the engine is stopped. If the
engine is running, the reverse gate may
move down and a person boarding
could be pinched.
The heavier the total weight of the operator
and passenger(s), the more difficult it will be
to balance the watercraft. Do not operate the
watercraft when the total weight exceeds 240
kg (530 lb) including any cargo.
To board with passenger(s):
(1) Board as noted in the previous section
“Boarding alone”.
(2) Grip the handlebars with both hands and
place both feet on the floor of the foot-
well.
(3) Have the first passenger move to the rear
of the watercraft.
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Operation
74
(4) Have the first passenger board using the
same procedure as the operator, place
their feet on the floor of the footwell, and
securely hold on to the operator.
(5) Have the second passenger follow the
same procedure. When the second pas-
senger is boarding, try to balance the
watercraft together with the first passen-
ger.
(6) Make sure that the passenger(s) have
their feet on the floor of the footwell andare securely holding on to the person in
front of them or to the handgrip provided.
(7) Attach the engine shut-off cord (lanyard)
to your left wrist, and then attach the clip
to the engine shut-off switch.
(8) Look in all directions, start the engine,
and then start off slowly.
EJU33083Starting off
WARNING
EWJ00712
To avoid collisions:
Scan constantly for people, objects, and
other watercraft. Be alert for conditions
that limit your visibility or block your vi-
sion of others.
Operate defensively at safe speeds and
keep a safe distance away from people,
objects, and other watercraft.
Do not follow directly behind watercraft
or other boats. Do not go near others to
spray or splash them with water. Avoid
sharp turns or other maneuvers that
make it hard for others to avoid you or
understand where you are going. Avoid
areas with submerged objects or shal-
low water.
Take early action to avoid collisions. Re-
member, watercraft and other boats do
not have brakes. Do not release the
throttle lever when trying to steer away
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Care and storage
79
(5) Connect the garden hose to a water tap.
(6) Make sure that the area around the wa-
tercraft is clear, and then start the en-
gine. Immediately after the engine starts,
fully turn the water supply on so that wa-
ter flows out continually from the jet
thrust nozzle.
(7) Run the engine at idling speed for about
3 minutes watching the engine condition.
If the engine stops while flushing, turn
the water supply off immediately and
perform the procedure again from step 6.
NOTICE: Do not supply water to the
cooling water passages when the en-
gine is not running. The water could
flow back through the muffler into the
engine, causing severe engine dam-
age.
[ECJ00123]
(8) Turn the water supply off.
(9) Discharge the remaining water out of the
cooling water passages by alternately
squeezing and releasing the throttle lever
quickly for 10 to 15 seconds.
(10) Stop the engine.
(11) Remove the garden hose adapter, and
then securely install the flushing hose
connector cap by tightening it until it
stops.
(12) Securely install the removable watertight
storage compartment and seats in their
original positions.
EJU33736Cleaning the watercraft
(1) Remove the seats. (See page 42 for seat
removal and installation procedures.)
(2) Rinse the engine and engine compart-
ment with a small amount of water.
NOTICE: Do not use high-pressure
water when rinsing the engine or en-
gine compartment as severe engine
damage could result.
[ECJ00572]
(3) Drain the water from the engine com-
partment. (See page 53 for information
on draining the bilge water.)
(4) Wipe the engine and engine compart-
ment with a dry cloth.
(5) Wash down the hull, deck, and jet pump
with fresh water.
(6) Wipe the hull, deck, and jet pump with a
dry cloth.
(7) Wipe all vinyl and rubber components,
such as the seats and engine compart-
ment seals, with a vinyl protectant.
(8) To minimize corrosion, spray metallic
parts of the hull, deck, and engine with a
rust inhibitor.
(9) Allow the engine compartment to air dry
completely before installing the seats.
(10) Securely install the seats in their original
positions.
EJU33688Battery care
If the watercraft will not be used for more than
a month, remove the battery from the water-
craft, check it, and then store it in a cool, dry
place.
WARNING
EWJ00792
Battery electrolyte is poisonous and dan-
gerous, causing severe burns, etc. Elec-
trolyte contains sulfuric acid. Avoid
contact with skin, eyes, or clothing.
Antidotes
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Care and storage
81
Checking the battery bands
Make sure that the battery bands are not
damaged.
To store the battery:
(1) Clean the battery case using fresh water.
(2) If the battery terminals are dirty or cor-
roded, clean them using a wire brush.
(3) Apply water-resistant grease to the bat-
tery terminals.
(4) Store the battery in a cool, dry place.
NOTICE: Storing the battery in an un-
charged condition can cause perma-
nent battery damage. Check the
battery periodically.
[ECJ00103]
To install the battery:
(1) Place the battery in the battery compart-
ment and hook the battery bands onto
the holders.
(2) Connect the positive (+) battery lead (red)
to the positive (+) battery terminal.
NOTICE: Reversal of the battery leads
will damage the electrical parts.
[ECJ00262]
(3) Connect the negative (–) battery lead
(black) to the negative (–) battery termi-
nal.
(4) Connect the breather hose to the bat-
tery. WARNING! Fire or explosion
could result if the breather hose is
damaged, obstructed, or not connect-
ed properly.
[EWJ00452]
(5) Make sure that the battery is securely
held in place.
1Battery band
1Battery terminal
Recommended water-resistant grease:
YAMALUBE MARINE
GREASE/Yamaha Grease A
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