Yamaha WaveRunner GP1300R User manual

SERVICE MANUAL
GP1300R
WaveRunner
F1G-28197-1F-11LIT-18616-02-44
*LIT186160244*

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NOTICE
This manual has been prepared by Yamaha primarily for use by Yamaha dealers and their trained
mechanics when performing maintenance procedures and repairs to Yamaha equipment. It has
been written to suit the needs of persons who have a basic understanding of the mechanical and
electrical concepts and procedures inherent in the work, for without such knowledge attempted
repairs or service to the equipment could render it unsafe or unfit for use.
Because Yamaha has a policy of continuously improving its products, models may differ in detail
from the descriptions and illustrations given in this publication. Use only the latest edition of this
manual. Authorized Yamaha dealers are notified periodically of modifications and significant
changes in specifications and procedures, and these are incorporated in successive editions of this
manual.
A10001-0*
WaveRunner GP1300R
SERVICE MANUAL
©2003 by Yamaha Motor Corporation, USA
1st Edition, February 2003
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Yamaha Motor Corporation, USA
is expressly prohibited.
Printed in USA
LIT-18616-02-44

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HOW TO USE THIS MANUAL
MANUAL FORMAT
All of the procedures in this manual are organized in a sequential, step-by-step format. The informa-
tion has been compiled to provide the mechanic with an easy to read, handy reference that contains
comprehensive explanations of all disassembly, repair, assembly, and inspection operations.
In this revised format, the condition of a faulty component will precede an arrow symbol and the
course of action required will follow the symbol, e.g.,
•Bearings
Pitting/scratches → Replace.
To assist you in finding your way through this manual, the section title and major heading is given at
the top of every page.
ILLUSTRATIONS
The illustrations within this service manual represent all of the designated models.
CROSS REFERENCES
The cross references have been kept to a minimum. Cross references will direct you to the appropri-
ate section or chapter.

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IMPORTANT INFORMATION
In this Service Manual particularly important information is distinguished in the following ways.
The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR SAFETY IS
INVOLVED!
WARNING
Failure to follow WARNING instructions could result in severe injury or death to the machine
operator, passenger(s), a bystander, or a person inspecting or repairing the watercraft.
CAUTION:
A CAUTION indicates special precautions that must be taken to avoid damage to the water-
craft.
NOTE:
A NOTE provides key information to make procedures easier or clearer.
IMPORTANT:
This part has been subjected to change of specification during production.

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HOW TO USE THIS MANUAL
1To help identify parts and clarify procedure steps, there are exploded diagrams at the start of
each removal and disassembly section.
2Numbers are given in the order of the jobs in the exploded diagram.
3Symbols indicate parts to be lubricated or replaced (see “SYMBOLS”).
4A job instruction chart accompanies the exploded diagram, providing the order of jobs, names of
parts, notes in jobs, etc.
5Dimension figures and the number of parts, are provided for fasteners that require a tightening
torque.
Example:
Bolt or screw size : M10 (D) ×25 mm (L)
6Jobs requiring more information (such as special service tools and technical data) are described
sequentially.
10 ×25 mm
D
L

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A50001-1-4
SYMBOLS
Symbols 1to 9are designed to indicate the
content of a chapter.
1General Information
2Specifications
3Periodic Inspection and Adjustment
4Fuel System
5Power Unit
6Jet Pump Unit
7Electrical System
8Hull and Hood
9Trouble Analysis
Symbols 0to Eindicate specific data.
0Special service tool
ASpecified oil or fluid
BSpecified engine speed
CSpecified tightening torque
DSpecified measurement
ESpecified electrical value
(resistance, voltage, electric current)
Symbols Fto Hin an exploded diagram indi-
cate the grade of lubricant and the lubrication
point.
FApply Yamaha 2-stroke motor oil
GApply water resistant grease
(Yamaha grease A, Yamaha marine grease)
HApply molybdenum disulfide grease
Symbols Ito Nin an exploded diagram indi-
cate the type of sealant or locking agent and
the application point.
IApply Gasket Maker
JApply Yamabond No. 4
KApply LOCTITE 271 (red)
LApply LOCTITE 242 (blue)
MApply LOCTITE 572
NApply silicone sealant
NOTE:
Additional symbols may be used in this man-
ual.
12
34
56
78
90
AB
CD
EF
GH
IJ
KL
MN
GEN
INFO SPEC
INSP
ADJ FUEL
POWR
JET
PUMP
–+
ELEC
HULL
HOOD
TRBL
ANLS
T
R
.
.
E
A M
GM
4
271
LT
242
LT
572
LT SS

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INDEX
GENERAL INFORMATION 1
GEN
INFO
SPECIFICATIONS 2
SPEC
PERIODIC INSPECTION AND
ADJUSTMENT 3
INSP
ADJ
FUEL SYSTEM 4
FUEL
POWER UNIT 5
POWR
JET PUMP UNIT 6
JET
PUMP
ELECTRICAL SYSTEM 7
ELEC
HULL AND HOOD 8
HULL
HOOD
TROUBLE ANALYSIS 9
TRBL
ANLS
–+
A30000-0

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GEN
INFO
1
2
3
4
5
6
7
8
9
CHAPTER 1
GENERAL INFORMATION
IDENTIFICATION NUMBERS .........................................................................1-1
PRIMARY l.D. NUMBER ...........................................................................1-1
ENGINE SERIAL NUMBER ......................................................................1-1
JET PUMP UNIT SERIAL NUMBER .........................................................1-1
HULL IDENTIFICATION NUMBER (H.l.N.)...............................................1-1
SAFETY WHILE WORKING......................................................................1-2
FIRE PREVENTION ..................................................................................1-2
VENTILATION ...........................................................................................1-2
SELF-PROTECTION.................................................................................1-2
PARTS, LUBRICANTS, AND SEALANTS ................................................1-2
GOOD WORKING PRACTICES ...............................................................1-3
DISASSEMBLY AND ASSEMBLY ............................................................1-4
SPECIAL SERVICE TOOLS ...........................................................................1-5
MEASURING AND DIAGNOSIS ...............................................................1-5
REMOVAL AND INSTALLATION..............................................................1-7

1-1
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GEN
INFO IDENTIFICATION NUMBERS
A60700-0*
IDENTIFICATION NUMBERS
PRIMARY l.D. NUMBER
The primary l.D. number is stamped on a label
1attached inside the engine compartment.
Starting primary l.D. number:
F1G: 800301
1
ENGINE SERIAL NUMBER
The engine serial number is stamped on a
label 1attached to the engine unit.
Starting serial number:
60T: 1000001
JET PUMP UNIT SERIAL NUMBER
The jet pump unit serial number is stamped on
a label attached to the intermediate housing.
HULL IDENTIFICATION NUMBER
(H.l.N.)
The H.l.N. is stamped on a plate 1attached to
the hull on the aft, starboard (right) side.

1-2
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GEN
INFO SAFETY WHILE WORKING
SAFETY WHILE WORKING
To prevent and accident or injury and to
ensure quality service, follow the safety proce-
dures provided below.
FIRE PREVENTION
Gasoline is highly flammable.
Keep gasoline and all flammable products
away from heat, sparks, and open flames.
VENTILATION
Gasoline vapor and exhaust gas are heavier
than air and extremely poisonous. If inhaled in
large quantities they may cause loss of con-
sciousness and death within a short time.
When test running an engine indoors (e.g., in a
water tank), be sure to do so where adequate
ventilation can be maintained.
SELF-PROTECTION
Protect your eyes by wearing safety glasses or
safety goggles during all operation involving
drilling and grinding, or when using an air com-
pressor.
Protect your hands and feet by wearing protec-
tive gloves or safety shoes when necessary.
PARTS, LUBRICANTS, AND
SEALANTS
Use only genuine Yamaha parts, lubricants,
and sealants or those recommended by
Yamaha, when servicing or repairing the
watercraft.

1-3
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GEN
INFO SAFETY WHILE WORKING
Under normal conditions, the lubricants men-
tioned in this manual should not harm or be
hazardous to your skin. However, you should
follow these precautions to minimize any risk
when working with lubricants.
1. Maintain good standards of personal and
industrial hygiene.
2. Change and wash clothing as soon as
possible if soiled with lubricants.
3. Avoid contact with skin. Do not, for exam-
ple, place a soiled rag in your pocket.
4. Wash hands and any other part of the
body thoroughly with soap and hot water
after contact with a lubricant or lubricant
soiled clothing has been made.
5. To protect your skin, apply a protective
cream to your hands before working on the
watercraft.
6. Keep a supply of clean, lint-free cloths for
wiping up spills, etc.
GOOD WORKING PRACTICES
1. The right tools
Use the recommended special service
tools to protect parts from damage. Use
the right tool in the right manner—do not
improvise.
2. Tightening torques
Follow the tightening torque specifications
provided throughout the manual. When
tightening nuts, bolts, and screws, tighten
the large sizes first, and tighten fasteners
starting in the center and moving outward.

1-4
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GEN
INFO SAFETY WHILE WORKING
3. Non-reusable parts
Always use new gaskets, seals, O-rings,
oil seals, cotter pins, circlips, etc., when
installing or assembling parts.
DISASSEMBLY AND ASSEMBLY
1. Use compressed air to remove dust and
dirt during disassembly.
2. Apply engine oil to the contact surfaces of
moving parts during assembly.
3. Install bearings with the manufacture iden-
tification mark in the direction indication in
the installation procedure. In addition, be
sure to lubricate the bearings liberally.
4. Apply a thin coat of water-resistant grease
to the lip and periphery of an oil seal
before installation.
5. Check that moving parts operate normally
after assembly.

1-5
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GEN
INFO SPECIAL SERVICE TOOLS
SPECIAL SERVICE TOOLS
Using the special service tools recommended
by Yamaha will aid service and enable accu-
rate assembly and tune-up. Improvisations
and using improper tools can damage the
equipment.
NOTE:
•For USA and Canada, use the special ser-
vice tools starting with part numbers “J-,”
“YB-,”“YM-,”“YS-,”“YU-,”or “YW-.”
•For all other countries, use the special ser-
vice tools starting with part number “90890-.”
MEASURING AND DIAGNOSIS
1Digital multimeter
YU-34899-A
2Digital circuit tester
90890-03174
3Dial gauge
YU-03097
90890-01252
4Pocket tester
YU-03112
90890-03112
5Fuel pressure gauge adapter
YW-06842
90890-06842
6Fuel pressure gauge
YB-06766
90890-06786
7Cylinder gauge set
YU-03017
90890-06759
8Compression gauge
YU-33223-1
90890-03160
1YU-34899-A 90890-03174
2
3YU-03097 90890-01252
45
YU-03112
90890-03112
YW-06842
90890-06842
6YB-06766 90890-06786
7YU-03017
90890-06759
8YU-33223-1 90890-03160

1-6
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GEN
INFO SPECIAL SERVICE TOOLS
9Peak volt meter adapter
YU-39991
0Peak voltage adapter B
90890-03172
ASpark gap tester
YM-34487
BIgnition tester
90890-06754
CLighting coil tester (3 pins)
YB-06870
Test harness SMT250-3 (3 pins)
90890-06870
DAir pressure sensor tester (3 pins)
YB-06869
Test harness EJ-II-3 (3 pins)
90890-06869
ETest harness (6 pins)
YB-06848
Test harness FSW-6A (6 pins)
90890-06848
FTest harness (6 pins)
YB-06849
Test harness SM6195021-6 (6 pins)
90890-06849
GLower unit pressure/vacuum tester
YB-35956-A
Vacuum/pressure pump gauge set
90890-06756
HYamaha diagnostic system
(CD-ROM only)
60V-WS853-01
GYB-35956-A
90890-06756
90
YU-39991 90890-03172
AB
YM-34487 90890-06754
CD
YB-06870
90890-06870
YB-06869
90890-06869
EF
YB-06848
90890-06848
YB-06849
90890-06849
H60V-WS853-01
60V-2819K-10
YAMAHA
DIAGNOSTIC
SYSTEM
INSTALLATION MANUAL

1-7
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GEN
INFO SPECIAL SERVICE TOOLS
REMOVAL AND INSTALLATION
1Coupler wrench
YW-06551
90890-06551
2Flywheel holder
YW-06550
90890-06550
3Universal puller
YB-06117
4Flywheel puller
90890-06521
5Drive shaft holder (impeller)
YB-06151
Drive shaft holder 5 (impeller)
90890-06519
6Slide hammer and adapters
(jet pump bearing)
YB-06096
7Stopper guide plate (jet pump bearing)
90890-06501
8Bearing puller assembly
(jet pump bearing)
90890-06535
9Stopper guide stand (jet pump bearing)
90890-06538
0Driver rod L3 (jet pump bearing)
90890-06652
ABearing housing needle bearing remover
(jet pump bearing)
YB-06112
Drive shaft needle bearing installer and
remover (jet pump oil seal)
YB-06196
BNeedle bearing attachment
(jet pump bearing and oil seal)
90890-06614, 90890-06653
1YW-06551 YW-06550
2
3YB-06117 90890-06521
4
5YB-06151 YB-06096
6
790890-06501 90890-06535
8
990890-06538 90890-06652
0
AYB-06112 90890-06614
B
90890-06551
YB-06196 90890-06653
90890-06550
90890-06519

1-8
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GEN
INFO SPECIAL SERVICE TOOLS
COuter race installer—forward gear
(jet pump oil seal)
YB-06085
DBall bearing attachment (jet pump oil seal)
90890-06634
EDriver handle—large
(intermediate shaft and jet pump)
YB-06071
FDriver rod LS
(intermediate shaft and jet pump)
90890-06606
GDrive shaft needle bearing depth stop
(jet pump bearing)
YB-34474
HShaft holder (intermediate shaft)
YB-06552
Crankshaft holder 20 (intermediate shaft)
90890-06552
IDrive shaft taper roller bearing cup
installer (intermediate shaft)
YB-06156
Bearing outer race attachment
(intermediate shaft)
90890-06626
CYB-06085 90890-06634
D
EYB-06071 90890-06606
F
GYB-34474 YB-06552
H
IYB-06156
90890-06552
90890-06626

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SPEC
1
2
3
4
5
6
7
8
9
CHAPTER 2
SPECIFICATIONS
GENERAL SPECIFICATIONS .......................................................................2-1
MAINTENANCE SPECIFICATIONS ...............................................................2-3
ENGINE ....................................................................................................2-3
JET PUMP UNIT ......................................................................................2-4
HULL AND HOOD ....................................................................................2-5
ELECTRICAL ............................................................................................2-5
TIGHTENING TORQUES ................................................................................2-8
SPECIFIED TORQUES.............................................................................2-8
GENERAL TORQUE ...............................................................................2-14
CABLE AND HOSE ROUTING .....................................................................2-15

2-1
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SPEC GENERAL SPECIFICATIONS
GENERAL SPECIFICATIONS
Item Unit Model
GP1300R
Model code
Hull F1G
Engine/jet 60T
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 (653)
Maximum capacity Person/kg (lb) 2/160 (353)
Performance
Maximum output kW (PS) at r/min 121.4 (165) at 7,000
Maximum fuel consumption l/h (US gal/h,
lmp gal/h)
63.0 (16.6, 13.9)
Cruising range h 0.95
Engine
Engine type 2-stroke
Number of cylinders 3
Displacement cm3(cu. in) 1,297 (79.1)
Bore ×stroke mm (in) 84 ×78 (3.31 ×3.07)
Compression ratio
#1, #2 5.9:1
#3 5.7:1
Intake system Reed valve
Scavenging system Loop charge
Exhaust system Wet exhaust/YPVS
Lubrication system Variable oil injection
Cooling system Water cooled
Starting system Electric starter
Ignition system Digital CDI
Spark plug model
(manufacturer)
BR8ES-11 (NGK)
Spark plug gap mm (in) 1.0–1.1 (0.039–0.043)
Battery
Voltage, capacity V, Ah 12, 19
Generator output A at r/min 15 at 6,000

2-2
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SPEC
*1 Pump Octane Number = (Motor Octane Number + Research Octane Number)/2
*2 Research Octane Number
*3 YAMALUBE 2-W has been developed for this watercraft and it is available at a Yamaha dealer.
CAUTION:
Use only YAMALUBE 2-W oil. Using another oil can seriously damage the catalytic converter
and other engine components.
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 horizontal
angle
Degree 23 + 23
Jet thrust nozzle trim angle Degree –5, 0, 5, 10, 15
Trim system Manual 5 positions
Reverse system NA
Fuel and oil
Fuel Regular unleaded gasoline
Minimum fuel rating PON*1 86
RON*2 90
Oil YAMALUBE 2-W*3
Fuel-oil ratio
(wide open throttle)
30:1
Fuel tank capacity L (US gal,
Imp gal)
60 (15.9, 13.2)
Oil tank quantity L (US qt,
Imp qt)
5.5 (1.5, 1.2)
Item Unit Model
GP1300R
GENERAL SPECIFICATIONS

2-3
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SPEC MAINTENANCE SPECIFICATIONS
MAINTENANCE SPECIFICATIONS
ENGINE
Item Unit Model
GP1300R
Cylinder head
Warpage limit mm (in) 0.05 (0.002)
Minimum compression
pressure*1 kPa
(kgf/cm2, psi)
640 (6.4, 91)
Cylinders
Bore size mm (in) 84.000–84.018 (3.3071–3.3078)
Taper limit mm (in) 0.080 (0.0031)
Out-of-round limit mm (in) 0.050 (0.0020)
Wear limit mm (in) 84.100 (3.3110)
Pistons
Piston diameter mm (in) Red: 83.899–83.902 (3.3031–3.3032)
Orange: 83.903–83.906 (3.3033–3.3034)
Green: 83.907–83.910 (3.3034–3.3035)
Purple: 83.911–83.914 (3.3036–3.3037)
Measuring point*mm (in) 11 (0.43)
Piston-to-cylinder clearance mm (in) 0.100–0.105 (0.0039–0.0041)
Wear limit mm (in) 0.155 (0.0061)
Piston pin boss inside diameter mm (in) 22.008–22.020 (0.8665–0.8669)
Piston rings
Top
Type Keystone
Dimension (B) mm (in) 1.47–1.49 (0.058–0.059)
Dimension (T) mm (in) 3.0–3.2 (0.118–0.126)
End gap mm (in) 0.45–0.60 (0.018–0.024)
Ring groove clearance mm (in) 0.020–0.070 (0.0008–0.0028)
2nd
Type Keystone
Dimension (B) mm (in) 1.47–1.49 (0.058–0.059)
Dimension (T) mm (in) 3.0–3.2 (0.118–0.126)
End gap mm (in) 0.45–0.60 (0.018–0.024)
Ring groove clearance mm (in) 0.020–0.070 (0.0008–0.0028)
Piston pins
Outside diameter mm (in) 21.995–22.000 (0.8659–0.8661)
Wear limit mm (in) 21.990 (0.8657)
Connecting rod
Small end inside diameter mm (in) 26.995–27.008 (1.0628–1.0633)
*1Measuring conditions:
Engine temperature 48 °C (118 °F), wide open throttle, with spark plugs removed from all cylin-
ders.
The figures are for reference only.