2006 YAMAHA GP1300R service

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EJU20451
Engine overheat warning
system
This model is equipped with an engine
overheat warning system.
If the engine starts to overheat, the warn-
ing light and the engine overheat warning
indicator begin to blink, and the buzzer
sounds intermittently.
When this occurs, reduce the engine
speed and return to shore. Check for water
discharge. If there is no discharge of water
at the cooling water pilot outlet, whole the
engine is running, check the intake grate
and impeller for clogging.
WARNING@ Before attempting to remove weeds or
debris from the intake grate or impeller,
shut the engine off and remove the clip
from the engine shut-off switch. Severe
injury or death could result from coming
in contact with the rotating parts of the
jet pump.
@
CAUTION:@ This watercraft is equipped with a cata-
lytic converter.

Return to shore at low speed if over-
heat warning indicator and buzzer
come on. If you ignore these signals,
engine will stop running and cannot be
restarted until exhaust system cools
down.

Have your watercraft inspected and
serviced by a Yamaha dealer if engine
stops due to overheating.
@
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EJU20620
Quick Shift Trim System (QSTS)
Check the shift lock lever and the QSTS
selector for proper operation.
1. Operate the shift lock lever and the
QSTS selector to check that they oper-
ate properly.
2. Check that the QSTS selector locks
when the lever is released.
3. Check that the selector turns smoothly
when the lever is squeezed and held in
place.
4. Check that the angle of the jet thrust
nozzle changes when the selector is
shifted from neutral to bow up or bow
down.
If the mechanism does not work properly,
have a Yamaha dealer service it.
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4-1
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EJU18121
Storage
WARNING@ Always place the watercraft upright in a
horizontal position when storing it, oth-
erwise fuel could leak out into the engine
or engine compartment, which could
result in a fire hazard.
@
Storage for prolonged periods of time,
such as winter storage, requires preventa-
tive maintenance to ensure against deterio-
ration. It is advisable to have the watercraft
serviced by a Yamaha dealer prior to stor-
age. However, the following procedures can
be performed by the owner.
EJU11942
Flushing the cooling system
Flushing the cooling system is essential
to prevent the cooling system from being
clogged with salt, sand, or dirt.
WARNING@ Stay away from stern when engine is run-
ning on land. Hot water and steam spurt-
ing from exhaust outlet into the air can
cause serious burns.
@
CAUTION:@
Do not supply water to the cooling
water passages when the engine is not
running. The water could flow back
through the muffler into the crankcase
causing severe engine damage.

Do not run the engine of the watercraft
for more than 15 seconds without sup-
plying water, otherwise the engine may
overheat.

Do not run engine over 4,000 r/min on
land. The catalytic converter could
sustain serious damage.
@
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4-8
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WARNING@
Be sure to turn off the engine when
you perform maintenance unless oth-
erwise specified, otherwise an acci-
dent or injury could result from
unexpected operation, moving parts,
or electric shock. If the owner is not
familiar with watercraft servicing, this
work should be done by a Yamaha
dealer. Improperly serviced compo-
nents could fail or stop operating cor-
rectly, which could result in an
accident.

Modifications to this watercraft not
approved by Yamaha may cause loss
of performance or excessive noise and
exhaust emissions, or render it unsafe
for use. Consult a Yamaha dealer
before attempting any changes.
@
UF1G73.book Page 8 Tuesday, July 12, 2005 8:55 AM

4-9
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EJU21770
Owner’s/Operator’s Manual
and tool kit
It is advisable always to carry the
Owner’s/Operator’s Manual and tool kit with
you whenever you use the watercraft. For
your convenience, a storage compartment
1 is provided on the watercraft for the man-
ual and tool kit.
NOTE:@ To protect these materials from water dam-
age, it would be a good idea to put them in a
waterproof bag.
@
The service information included in this
manual is intended to provide you, the
owner, with the necessary information for
completing your own preventive mainte-
nance and minor repairs. The tools provided
in the tool kit are sufficient for this purpose,
except that a torque wrench may also be
necessary to tighten nuts and bolts.
2Tool bag
3Screwdriver
414/21 mm box wrench
5Pliers
6Open-end wrench
710/12 mm box wrench
8Garden hose adapter
UF1G73.book Page 9 Tuesday, July 12, 2005 8:55 AM

4-11
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EJU18160
Inspecting the fuel system
WARNING@ Gasoline is highly flammable and explo-
sive. Failure to check for and repair any
fuel leakage could result in fire or explo-
sion. A fire or explosion can cause
severe injury or death. Shut off the
engine. Do not smoke. Avoid spilling
gasoline.
Fuel in hose is pressurized.
Fuel can spray out and cause injury or a
fire hazard if fuel line is disconnected.
Do not attempt to run engine with fuel
line disconnected.
@
Check the fuel system for leaks, cracks,
or malfunctions. If any problem is found,
consult a Yamaha dealer.
Check:

Fuel tank for water or dirt.

Fuel tank cap (seal) for damage.

Fuel tank for damage, cracks or leakage.

Fuel hose joint for leakage.

Fuel hose for cracks or other damage.

Air bleeding passages for leakage.
EJU18410
Fuel tank
Check the fuel tank 1 for leakage or
water in the tank. If water is found in the fuel
system or if the fuel tank needs to be
cleaned, have a Yamaha dealer service the
watercraft.
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4-12
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EJU11000
Inspecting the oil injection
system
Check the oil injection system for leakage,
cracks, or malfunctions. If necessary, have a
Yamaha dealer repair the oil injection sys-
tem.
Check:

Oil tank for damage, cracks or leakage.

Oil tank for water or dirt.

Oil hose and joint for damage or cracks.

Oil filter for dirt.

Oil pump for leakage.
EJU11010
Oil tank
Check the oil tank for leakage or water in
the tank. If water is found in the oil injection
system or if the oil tank needs to be cleaned
have a Yamaha dealer service the water-
craft.
EJU20230
Oil filter
Have a Yamaha dealer check the oil filter
for dirt and clogs.
UF1G73.book Page 12 Tuesday, July 12, 2005 8:55 AM

4-13
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EJU18891
Inspecting the jet thrust nozzle
angle
Check for smooth operation of the handle-
bars and jet thrust nozzle.
Turn the handlebars as far as possible to
the right and left and check that the differ-
ence of distances A and B between the jet
thrust nozzle and the nozzle is within specifi-
cation.
If steering is stiff or misadjusted, have a
Yamaha dealer service it. Difference of A and B:
Maximum 5 mm (0.20 in)
EJU11040
Inspecting and adjusting the
throttle cable
Check that the throttle cable moves back
to the set position smoothly and that free
play is within specification.
1. Squeeze and release the throttle lever. If
the lever does not return smoothly, have
a Yamaha dealer service it.
2. Adjust free play a by loosening the lock-
nut 1 and turning the adjuster 2.
Throttle lever free play:
4–7 mm (0.16–0.28 in)
UF1G73.book Page 13 Tuesday, July 12, 2005 8:55 AM