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4-3
E
EJU20100
Lubrication
WARNING@ Do not spray flammable rust inhibitor
products on engine surfaces while the
engine is hot. The sprayed substance or
propellants could catch fire.
@
1. Remove the spark plugs and pour
approximately one tablespoon of oil into
each cylinder.
2. Grease the spark plug threads and rein-
stall the spark plugs.
3. Crank the engine within 3 seconds using
the start switch.
4. Lubricate all cables such as the throttle
and steering cables.
NOTE:@ Use a suitable marine grease applicator to
pressure lubricate the cables and purge out
any moisture between the inner and outer
cables.
@
5. Lubricate the areas of the watercraft
specified under Lubrication points on
page 4-15.
EJU20221
Fuel system
WARNINGGASOLINE 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.
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4-9
E
EJU13550
Periodic maintenance chart
The following chart gives general guidelines for periodic maintenance. However, depend-
ing on your operating conditions maintenance may need to be performed more frequently.
PMC-*** () This mark indicates maintenance that you may do yourself.
(
❍) This mark indicates work to be done by a Yamaha dealer.
MAINTENANCE INTERVAL
INITIALTHEREAFTER
EVERYPA G E
10
hours50
hours100
hours100
hours200
hours
ITEM
6
months12
months12
months24
months
Spark plug Inspect, clean, adjust
4-13
Lubrication points Lubricate
4-15
Intermediate housing Lubricate❍
*1
*2
*2 4-16
Fuel system Inspect❍❍
4-10
Fuel tank Inspect, clean❍❍
4-10
Oil injection system Inspect, clean❍❍
4-11
Throttle shaft Inspect❍❍
—
Cooling water passages Flush
*3 4-1
Water inlet strainer Inspect, clean❍❍
—
Bilge strainer Clean❍❍
—
Electric bilge pump strainer Inspect, clean❍❍
—
Impeller Inspect❍❍
—
Jet thrust nozzle angle Inspect, adjust
/❍
/❍
4-12
QSTS mechanism Inspect, adjust❍❍❍
—
Throttle cable Inspect, adjust❍❍❍
4-12
Stern drain plugs Inspect, replace❍❍
3-9
Battery Inspect ❍❍
4-18
Rubber coupling Inspect❍
—
Engine mount Inspect❍
—
Nuts and bolts Inspect❍❍❍
—
*1: Grease quantity: 33.0–35.0 cm3 (1.11–1.18 oz)
*2: Grease quantity: 6.0–8.0 cm3 (0.20–0.27 oz)
*3: After every use
UF1G72.book Page 9 Thursday, September 30, 2004 2:28 PM
Page 94 of 122
4-11
E
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.
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4-17
E
EJU19710
Inspecting the battery
Check the level of the battery electrolyte
and make sure that the negative and posi-
tive leads are securely tightened.
WARNING@ Battery electrolyte is poisonous and
dangerous, causing severe burns, etc.
Electrolyte contains sulfuric acid.
Avoid contact with skin, eyes, or cloth-
ing.
Antidotes
External: Flush with water.
Internal: Drink large quantities of water
or milk. Follow with milk of magnesia,
beaten egg, or vegetable oil. Call phy-
sician immediately.
Eyes: Flush with water for 15 minutes
and get prompt medical attention.
Batteries produce explosive gases.
Keep sparks, flame, cigarettes, etc.,
well away. If using or charging the bat-
tery in an enclosed space, make sure
that it is well ventilated. Always shield
your eyes when working near batter-
ies.
KEEP OUT OF THE REACH OF CHIL-
DREN.
Be sure to connect the breather hose
to the battery. Fire or explosion could
result if the breather hose is damaged,
obstructed, or not connected properly.
@
CAUTION:@ Be careful not to place the battery on
its side.
Be sure to remove the battery from the
battery compartment when adding
electrolyte or charging the battery.
@
UF1G72.book Page 17 Thursday, September 30, 2004 2:28 PM
Page 103 of 122
4-20
E
EJU18250
Replacing the fuse
The fuse is in the electrical box 1.
To replace the fuse:
1. Remove the cap 2.
2. Replace the fuse 4 with the spare
fuse5 of the correct amperage by using
the special tool 3 on the reverse side of
the cap.
WARNING@ Do not use fuses of higher amperage
than those recommended. Substitution
of a fuse of improper rating can cause
extensive electrical system damage and
possible fire.
@
EJU11120
Bleeding the oil injection
pump
If the oil tank becomes completely empty,
or any hose connected to the oil pump has
been disconnected, the oil pump must be
bled to ensure proper oil flow.
If bleeding of the oil pump is necessary,
have a Yamaha dealer bleed it. Fuse amperage:
20 A (main)
3 A (meter)
3 A (bilge pump)
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4-22
E
EJU13590
Specifications
SPC-*** MODEL
ITEMUnit GP1300R
WATERCRAFT CAPACITY
Maximum people on board Number of people 2
Maximum load capacity kg (lb) 160 (353)
DIMENSIONS
Length mm (in) 2,930 (115.4)
Width mm (in) 1,150 (45.3)
Height mm (in) 1,020 (40.2)
Dry weight kg (lb) 297 (655)
PERFORMANCE
Maximum output kW (PS) @ r/min 125.0 (170) @ 7,000
Maximum fuel consumption L/h (US gal/h, Imp gal/h) 57.0 (15.1, 12.5)
Cruising range at full throttle hr. 1.05
Trolling speed r/min 1,250–1,450
ENGINE
Engine type 2-stroke
Number of cylinders 3
Engine displacement
cm
3 (cu in)1,297 (79.1)
Bore & stroke mm (in) 84 ×
78 (3.31 ×
3.07)
Compression ratio 6.0:1
Lubrication system Variable oil injection
Cooling system Water cooled
Starting system Electric starter
Ignition system Digital CDI
Spark plug BR8ES-11 (NGK)
Spark plug gap mm (in) 1.0–1.1 (0.039–0.043)
Battery capacity V-AH 12-19
Charging system Flywheel magneto
DRIVE UNIT
Propulsion system Jet pump
Jet pump type Axial flow, single stage
Impeller rotation Counterclockwise (viewed from rear)
Transmission Direct drive from engine
Jet thrust nozzle angle Degree 23 + 23
Trim nozzle angle Degree -10, -5, 0, 5, 10
FUEL AND OIL
Recommended fuel Regular unleaded gasoline
Minimum octane rating PON
RON86
90
Recommended engine oil YAMALUBE 2-W only
Fuel tank capacity
Total L (US gal, Imp gal) 60 (15.9, 13.2)
Oil tank capacity L (US gal, Imp gal) 5.5 (1.5, 1.2)
UF1G72.book Page 22 Thursday, September 30, 2004 2:28 PM
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5-2
E
Engine runs irregu-
larly or stallsFuel Empty Refill as soon as possi-
ble3-4
Stale or contaminated Have serviced by
Yamaha dealer4-10
Fuel tank Water or dirt present Have serviced by
Yamaha dealer4-10
Spark plug Fouled or defective Replace 4-13
Incorrect heat range Replace 4-13
Gap incorrect Adjust 4-13
Spark plug cap Loose Connect properly 4-13
Cracked, torn, or dam-
agedReplace
—
Electrical
wiringLoose connection Tighten or connect
properly—
Fuel injection
systemFaulty or clogged injec-
torsHave serviced by
Yamaha dealer—
Warning light or
indicator blinksFuel level Empty Refill as soon as possi-
ble3-4
Engine oil level Empty Refill immediately 3-5
Oil filter clogged Have serviced by
Yamaha dealer—
Engine
overheatedJet intake clogged Clean 5-4
Water temperature
sensor is failedHave serviced by
Yamaha dealer2-12
Low battery
voltageBattery voltage low Charge 4-17
Battery terminal con-
nected wrongConnect properly
4-17
Exhaust gas
temperatureGas temperature is too
highCool down engine
2-13
Check engine
warningFaulty sensors Have serviced by
Yamaha dealer— TROUBLE POSSIBLE CAUSE REMEDY PAGE
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5-5
E
2. Remove any weeds or debris from
around the drive shaft, impeller, pump
housing, and jet thrust nozzle.
If debris is difficult to remove, consult
your Yamaha dealer.
CAUTION:@ Always avoid operating your watercraft in
areas where weed growth is thick. If trav-
eling in weeded areas is unavoidable,
operate the engine alternately at partial
throttle and full throttle. Weeds tend to
accumulate more at a steady speed and
at trolling speed. If weeds clog the intake
or impeller area and cause cavitation, fol-
low the cleaning procedure above.
@
EJU18440
Jumping the battery
If the watercraft battery has run down, the
engine can be started using a 12-volt bat-
tery and jumper cables.
WARNING@ Battery electrolyte is poisonous and dan-
gerous, causing severe burns, etc. Elec-
trolyte contains sulfuric acid. Avoid
contact with skin, eyes or clothing.
Antidotes
External: Flush with water.
Internal: Drink large quantities of water
or milk. Follow with milk of magnesia,
beaten egg or vegetable oil. Call physi-
cian immediately.
Eyes: Flush with water for 15 minutes
and get prompt medical attention.
Batteries produce explosive gases. Keep
sparks, flame, cigarettes, etc. well away.
If using or charging the battery in an
enclosed space, make sure that it is well
ventilated. Always shield your eyes when
working near batteries.
KEEP OUT OF THE REACH OF CHILDREN.
@
UF1G72.book Page 5 Thursday, September 30, 2004 2:28 PM