YAMAHA GP1300R 2003 Service Manual

2-16
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EJU10280
Tachometer
The engine speed (r/min) is displayed
by segments. Each segment indicates a
250 r/min increment.
EJU20171
Speedometer
The meter shows the watercraft speed
against water.
NOTE:@ To switch the speedometer display between
kilometers and miles, push the select
button1 for at least 1 second, within
10 seconds after the meter is displayed.
@
EJU10310
Fuel meter
The fuel meter is provided for convenient
fuel level checking while riding. The fuel
meter has eight segments which show the
amount of fuel remaining in the fuel tank.
NOTE:@ The indication of the segments differs on
your operating condition. Use the meter as a
reference.
@
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EJU20182
Hour meter/Voltmeter
NOTE:@ To switch the display between the hour
meter and voltmeter, push the select
button1 for at least 1 second after the
meter is displayed for more than 10 sec-
onds.
@
Hour meter
The hour meter is provided to make it
easy to follow the maintenance schedule.
The meter shows the hours of engine
operation that have elapsed since the water-
craft was new.
Vo l t m e t e r
The voltmeter is provided to display the
voltage of the battery.
The voltmeter displays 12 volts or more
when the battery voltage is within specifica-
tion.
If the voltage displayed is low, beach the
watercraft and, if necessary, have a Yamaha
dealer check the charging system.
EJU10330
Fuel warning indicator
If the fuel remaining in the tank drops to
about 13 L (3.4 US gal, 2.9 Imp gal), the
lowest two fuel level segments, the fuel
warning indicator and the warning light
begin to blink. The buzzer also starts sound-
ing intermittently.
The warning signals will be cleared when
the engine restarts after refilling fuel.
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EJU10341
Oil warning indicator
If the oil remaining in the tank drops to
about 1.7 L (0.45 US gal, 0.37 Imp gal) or
the oil filter is clogged, the oil warning indi-
cator and the warning light begin to blink.
The buzzer also starts sounding intermit-
tently.
If the oil warning indicators begin to blink,
refill with engine oil as soon as possible.
The warning signals will be cleared when
the engine restarts after refilling engine oil.
NOTE:@ If the warning indicators blink with adequate
oil in the tank, have a Yamaha dealer check
the oil filter for dirt and clogs.
@
EJU20041
Check engine warning
indicator
If a sensor malfunction or a short circuit is
detected, the warning light and indicator
begin to blink and the buzzer sounds inter-
mittently.
If this occurs, reduce the engine speed,
beach the watercraft, and have a Yamaha
dealer check the engine.
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EJU20050
Engine overheat warning
indicator
If the engine starts to overheat, the warn-
ing light and engine overheat warning indi-
cator begin to blink, and the buzzer sounds
intermittently.
If the watercraft continues to be operated
at higher speeds after the warning system
has been activated, the warning light,
engine overheat warning indicator and the
buzzer will change from intermittently to
continuously on. (See “Engine overheat
warning system” on page 2-12 for further
details.)
The warning signals will turn off when the
engine is started after it has cooled down.
NOTE:@ When the warnings overlap each other, their
priority is as follows:
1. Final overheat warning
2. Fuel level warning
3. Oil level warning
4. Initial overheat warning
5. Exhaust temperature warning
6. Check engine warning
@
EJU11860
Exhaust temperature warning
indicator
If the exhaust system becomes too hot,
the warning light and exhaust temperature
warning indicator begin to blink, and the
buzzer sounds intermittently. (See “Exhaust
temperature warning system” on page 2-13
for further details.)
The warning signals will turn off when the
engine is started after it has cooled down.
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EJU10350
Storage compartments
A front storage compartment and a glove
compartment are provided.
NOTE:@
Make sure that the storage compartments
are properly secured before operating the
watercraft.

The storage compartments are not
designed to be waterproof. If you carry
objects that must be kept dry, such as the
manuals, put them in a waterproof bag.
@
EJU10370
Front storage compartment
The front storage compartment 2 is
located at the bow.
To open the front storage compartment,
push the hood latch 1 down, and then open
the hood.
NOTE:@ The front storage compartment can be
removed to access the engine compart-
ment.
@
Front storage compartment:
Capacity: 16 L (4.2 US gal, 3.5 Imp gal)
Load limit: 5 kg (11 lb)
To close the front storage compartment,
push down on the rear of the hood until it
latches securely.
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EJU20470
Glove compartment
A glove compartment 2 is located in front
of the seat.
To open the glove compartment, slide the
latch 1 toward you, and then lift up the lid.
To close the glove compartment, push the
lid down until it locks securely.
Glove compartment:
Capacity: 2 L (0.53 US gal, 0.44 Imp gal)
Load limit: 1 kg (2.2 lb)
EJU10391
Yamaha Adjustable Sponson
(Y.A.S.)
The sponsons 1 have adjustable posi-
tioning to allow the operator to enhance
either straight-line performance or turning
performance according to the preference
and operating conditions. (See page 4-22
for adjustment procedures.)
Up position A:
There will be less water resistance in this
position, so straight-ahead acceleration
when on plane and top speed will be
enhanced.
Down position B:
This position will give the watercraft more
“hook” which will enhance turning perfor-
mance.
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E
3
EJU10400
OPERATION
Fuel and oil ............................................... 3-1
Gasoline ................................................. 3-1
2-stroke engine oil .................................. 3-3
Filling the fuel tank ................................. 3-4
Filling the oil tank ................................... 3-5
Pre-operation checks .............................. 3-6
Pre-operation check list ......................... 3-6
Pre-operation check points .................... 3-7
Operation ................................................ 3-14
Engine break-in .................................... 3-14
Starting the engine ............................... 3-16
Stopping the engine ............................. 3-18
Leaving the watercraft ......................... 3-18
Operating your watercraft .................... 3-19
Getting to know your watercraft ........... 3-19
Learning to operate your watercraft .... 3-19
Riding watercraft with a passenger ..... 3-20
Starting the watercraft .......................... 3-21
Boarding and starting in deep water ... 3-23
Capsized watercraft ............................. 3-25
Turning the watercraft .......................... 3-27
Stopping the watercraft ........................ 3-29
Beaching the watercraft ....................... 3-30
Docking the watercraft ......................... 3-30
Rough water operation ........................ 3-30
Post-operation checks ......................... 3-31
Transporting .......................................... 3-33
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3-1
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EJU20060
Fuel and oil
This engine uses Yamaha’s oil injection
system, which provides superior lubrication
by ensuring the proper oil ratio for all operat-
ing conditions. No fuel premixing is neces-
sary except during the engine break-in
period. Simply pour gasoline into the fuel
tank and oil into the oil tank.
The engine utilizes an electronic fuel
injection system to deliver the optimal air-
fuel mixture ratio required by the engine.
With optimal combustion conditions, this
system is able to increase startability and
improve fuel economy.
EJU19122
Gasoline
WARNING@ GASOLINE AND ITS VAPORS ARE
HIGHLY FLAMMABLE AND EXPLOSIVE!

Do not smoke when refueling, and
keep away from sparks, flames, or
other sources of ignition.

Stop engine before refueling.

Refuel in a well-ventilated area with
the watercraft in a horizontal position.

Do not stand or sit on the watercraft
while refueling in case of fire.

Take care not to spill gasoline. If gaso-
line spills, wipe it up immediately with
dry rags. Always properly dispose of
gasoline-soaked rags.
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3-2
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Avoid overfilling the fuel tank. Stop fill-
ing when the fuel level just reaches the
bottom of the filler tube. Do not fill up
the filler tube because fuel expands as
it warms up and could overflow. If tem-
porarily leaving the watercraft with a
full fuel tank, do not leave it in direct
sunlight. Leave it in a well-ventilated
area with the watercraft in a horizontal
position.

Tighten the filler cap securely after
refueling.

If you should swallow some gasoline,
inhale a lot of gasoline vapor, or get
gasoline in your eyes, get immediate
medical attention.

If any gasoline spills onto your skin,
immediately wash with soap and
water. Change clothing if gasoline
spills on it.
@
CAUTION:@
Do not use leaded gasoline. Leaded
gasoline can seriously damage the
catalytic converter.

Use only fresh gasoline that has been
stored in clean containers.
@
Recommended gasoline:
Regular unleaded gasoline with
a minimum octane rating of
86 (Pump octane number) = (R+M)/2
90 (Research octane number)
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EJU18320
Gasohol
There are two types of gasohol: gasohol
containing ethanol and that containing meth-
anol.
Gasohol containing ethanol can be used
if ethanol content does not exceed 10% and
the fuel meets minimum octane ratings.
Gasohol containing methanol is not rec-
ommended by Yamaha because it can
cause fuel system damage or engine perfor-
mance problems.
EJU11870
2-stroke engine oil
CAUTION:@ Use only YAMALUBE 2-W oil. Using
another oil can seriously damage the cat-
alytic converter and other engine compo-
nents.
@
NOTE:@ YAMALUBE 2-W is developed for this water-
craft and available from a Yamaha dealer.
@
Recommended engine oil:
YAMALUBE 2-W oil only
UF1G70.book Page 3 Wednesday, December 18, 2002 3:35 PM