2007 YAMAHA GP1300R engine overheat

Features and functions
27
The bow eye is used to attach a rope to the
watercraft when transporting, mooring, or
towing it in an emergency.
EJU36020Stern rope holes
The stern rope holes are located at the stern
of the watercraft.
The stern rope holes are used to attach a rope
to the watercraft when transporting or moor-
ing it.
EJU31370Yamaha Engine Management System
(YEMS)
This model is equipped with an integrated,
computerized management system that con-
trols and adjusts ignition timing, fuel injection,
engine diagnostics, and the off-throttle steer-
ing (OTS) system.
EJU31420Multifunction information center
This meter contains the following functions for
help and convenience in operating the water-
craft.
CAUTION:
ECJ00060

Do not run the engine over 4000 r/min
when checking the operation of the
meter on land without supplying water,
otherwise the engine could overheat
and the catalytic converter could be se-
riously damaged.

Use the specified resistor-type spark
plugs and caps, otherwise the meter
may function erratically.
NOTE:

When the engine is started, all displays light
up for a few seconds, the buzzer sounds
twice, and then the meter starts to operate
normally.
1Bow eye
1Stern rope hole
1Tachometer
2Speedometer
3Hour meter/voltmeter
4Fuel level meter
5“WARNING” light
6Fuel level warning indicator
7Oil level warning indicator
8Engine overheat warning indicator
9Exhaust temperature warning indicator
10Check engine warning indicator
11Select button
UF1G74E0.book Page 27 Monday, July 31, 2006 10:10 AM

Features and functions
29
The meter shows the hours of engine opera-
tion that have elapsed since the watercraft
was new.
Voltmeter
The voltmeter is provided to display the volt-
age of the battery.
The voltmeter displays 12 volts or more when
the battery voltage is within specification.
If the voltage displayed is low, return to shore
and, if necessary, have a Yamaha dealer
check the charging system and the battery.
EJU31560Fuel level warning indicator
If the fuel remaining in the fuel tank drops to
about 13 L (3.4 US gal, 2.9 Imp gal), the low-
est two fuel level segments, the fuel level
warning indicator, and the “WARNING” light
begin to blink. The buzzer also starts sound-
ing intermittently.
If this occurs, refill the fuel tank as soon as
possible.
The warning signals will be cleared when the
engine is restarted after the fuel tank is re-
filled.
EJU31570Oil level warning indicator
If the oil remaining in the oil tank drops to
about 1.7 L (0.45 US gal, 0.37 Imp gal) or the
oil filter is clogged, the oil level warning indica-
tor and the “WARNING” light begin to blink.The buzzer also starts sounding intermittent-
ly.
If this occurs, refill the oil tank as soon as pos-
sible.
The warning signals will be cleared when the
engine is restarted after the oil tank is refilled.
NOTE:
If the oil level warning indicator and the
“WARNING” light blink when there is ade-
quate oil in the oil tank, have a Yamaha dealer
check the oil filter for dirt and clogs.
EJU31580Engine overheat warning indicator
This model is equipped with an engine over-
heat warning system.
If the engine starts to overheat, the “WARN-
ING” light and the engine overheat warning in-
dicator begin to blink, and the buzzer sounds
intermittently.
If this occurs, reduce the engine speed, return
to shore, and then check for water discharge
UF1G74E0.book Page 29 Monday, July 31, 2006 10:10 AM

Features and functions
30
at the cooling water pilot outlet while the en-
gine is running. If there is no discharge of wa-
ter, shut the engine off, and then check the
intake grate and impeller for clogging.
WARNING
EWJ00050
Before attempting to remove weeds or de-
bris from the intake grate or impeller, shut
the engine off and remove the clip from the
engine shut-off switch. Severe injury ordeath could result from coming in contact
with the rotating parts of the jet pump.
CAUTION:
ECJ00800
This watercraft is equipped with a catalytic
converter.

If the “WARNING” light, engine overheat
warning indicator, and buzzer come on,
reduce the engine speed and return to
shore. If you ignore these signals, the
engine will stop running and cannot be
restarted until the exhaust system cools
down.

If you cannot locate and correct the
cause of the overheating, consult a
Yamaha dealer. Continuing to operate at
higher speeds could result in severe en-
gine damage.
If the overheat warning is ignored, engine and
exhaust system heat may increase, particu-
larly if the watercraft is operated at higher
UF1G74E0.book Page 30 Monday, July 31, 2006 10:10 AM

Features and functions
31
speeds. If this occurs, the “WARNING” light
and the engine overheat warning indicator
come on and the buzzer sounds continuously.
In addition, the warning system will cut the ig-
nition to the engine to reduce the risk of se-
vere overheating. The engine cannot be
started until it cools down, so it may be neces-
sary to have the watercraft towed back to the
shore. (See “Towing the watercraft” on page
78 for towing procedures.)
The warning signals will be cleared when the
engine is restarted after it has cooled down.
NOTE:
If multiple warnings occur at the same time,
their priority is as follows:
(1) Final engine overheat warning
(2) Fuel level warning
(3) Oil level warning
(4) Initial engine overheat warning
(5) Exhaust temperature warning
(6) Check engine warning
EJU31610Exhaust temperature warning indicator
This model is equipped with an exhaust tem-
perature warning system.
If the exhaust temperature becomes too hot,
the “WARNING” light and the exhaust tem-
perature warning indicator begin to blink, and
the buzzer sounds intermittently.If this occurs, reduce the engine speed and
return to shore to allow the exhaust system to
cool down.
WARNING
EWJ00830
Do not touch the hot muffler or catalytic
converter during or immediately after en-
gine operation; they can cause serious
burns. In addition, the catalytic converter
becomes hotter after the engine stops be-
fore cooling down.
CAUTION:
ECJ00810
This model is equipped with a catalytic
converter.

If the “WARNING” light, exhaust temper-
ature warning indicator, and buzzer
come on, reduce the engine speed (be-
low 4000 r/min) and return to shore.

If you cannot locate and correct the
cause of the overheating, consult a
Yamaha dealer. Continuing to operate at
higher speeds could result in severe en-
gine damage.
The warning signals will be cleared when the
engine is restarted after it has cooled down.
EJU31630Check engine warning indicator
If a sensor malfunction or a short circuit is de-
tected, the “WARNING” light and the check
UF1G74E0.book Page 31 Monday, July 31, 2006 10:10 AM

Operation
43
(3) Check that the QSTS selector turns
smoothly when the lever is squeezed and
held in place.
(4) Check that the angle of the jet thrust noz-
zle changes when the QSTS selector is
shifted from neutral to bow up or bow
down.
If the mechanism does not work properly,
have a Yamaha dealer service it.
EJU32650Jet intake
Carefully check the jet intake for weeds, de-
bris, or anything else that might restrict the in-
take of water. If the jet intake is clogged,
cavitation could occur, reducing jet thrust, and
possibly damaging the jet pump.
In some cases, the engine may overheat be-
cause of lack of cooling water, and damage to
the engine could result. Cooling water is fed to
the engine by the jet pump. (See page 76 for
jet intake cleaning procedures.)
WARNING
EWJ00470

Keep away from the intake grate while
the engine is on. Items such as long hair,
loose clothing, or PFD straps can be-
come entangled in moving parts, result-
ing in severe injury or drowning.

Stop the engine and remove the clip
from the engine shut-off switch before
removing any debris or weeds, which
may have collected around the jet in-
take.
UF1G74E0.book Page 43 Monday, July 31, 2006 10:10 AM

Operation
44
EJU32660Engine shut-off cord
Check that the engine shut-off cord is not
frayed or broken. If the cord is damaged, re-
place it; never try to repair it or tie it together.
EJU32670Switches
CAUTION:
ECJ00410
Do not run the engine for more than 15
seconds when checking the switches on
land 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.
Push the start switch to start the engine. As
soon as the engine starts running, push the
engine stop switch to verify that the engine
stops immediately. Restart the engine, and
then pull the engine shut-off cord to remove
the clip from the engine shut-off switch to ver-
ify that the engine stops immediately. (See
pages 22 to 23 for information on proper op-eration of the start switch, the engine stop
switch, and the engine shut-off switch.)
EJU32690Cooling water pilot outlets
Check that water comes out from the cooling
water pilot outlets while the engine is running
and the watercraft is in the water.
EJU32710Multifunction information center
Check the multifunction information center for
proper operation. (See page 27 for informa-
1Start switch
2Engine stop switch
3Engine shut-off switch
4Clip
5Engine shut-off cord
UF1G74E0.book Page 44 Monday, July 31, 2006 10:10 AM

Operation
46
(1) Launch the watercraft and start the en-
gine. (See page 46 for engine starting
procedures.)
(2) Run the engine at trolling speed for 5 min-
utes.
(3) Gradually apply throttle and run the en-
gine at 5000 r/min or less.
(4) Operate the watercraft at 5000 r/min or
less for the first tankful of fuel.
(5) Fill the fuel tank with straight gasoline,
and then proceed with normal operation.
CAUTION:
ECJ00430
Failure to follow the engine break-in pro-
cedure could result in reduced engine life
or even severe engine damage.
EJU32820Launching the watercraft
When launching the watercraft, make sure
that there are no obstacles around you.
After the watercraft is in the water, turn it
around so that the bow faces the direction you
wish to go. Start the engine, and then slowly
move away from the launching area. If there
are waves, someone should make sure that
the watercraft is not pushed into the trailer af-
ter launching the watercraft.
EJU32840Starting the engine
WARNING
EWJ00560
Never start the engine or let it run for any
length of time in an enclosed area. Ex-
haust fumes contain carbon monoxide, a
colorless, odorless gas that may cause
loss of consciousness and death within a
short time. Always operate the watercraft
in an open area.
(1) Launch the watercraft in water free from
weeds and debris and at least 60 cm (2 ft)
deep.
WARNING
EWJ00570
Never operate in water that is less than 60
cm (2 ft) deep, otherwise you increase
your chance of hitting a submerged ob-
ject, which could result in injury.
CAUTION:
ECJ00470
Never operate in water that is less than 60
cm (2 ft) deep, otherwise pebbles or sand
could be sucked into the jet intake, caus-
ing impeller damage and engine overheat-
ing.
UF1G74E0.book Page 46 Monday, July 31, 2006 10:10 AM

Operation
50
WARNING
EWJ00530
When a passenger is on board, make sure
that the passenger is holding on firmly and
has both feet on the floor of the footwell
before you start to accelerate.
EJU33080Starting the watercraft
WARNING
EWJ00710

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
from objects—you need throttle to steer.

Practice reboarding in shallow water be-
fore riding in deep water.
EJU33090Boarding and starting in shallow water
(1) Launch the watercraft in water free from
weeds and debris and at least 60 cm (2 ft)
deep.
WARNING
EWJ00640
Never operate in water that is less than 60
cm (2 ft) deep, otherwise you increase
your chance of hitting a submerged ob-
ject, which could result in injury.
CAUTION:
ECJ00500
Never operate in water that is less than 60
cm (2 ft) deep, otherwise pebbles or sand
could be sucked into the jet intake, caus-
ing impeller damage and engine overheat-
ing.
UF1G74E0.book Page 50 Monday, July 31, 2006 10:10 AM