Yamaha Waverunner 3 Manual

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GEN
INFO
 SAFETY WHILE WORKING
 SAFETY WHILE WORKING
The procedures given in this manual are those
recommended by Yamaha to be followed by
Yamaha dealers and their mechanics.
FIRE PREVENTION
Gasoline (petrol) is highly flammable.
Gasoline vapor is explosive if ignited. 
Do not smoke while handling gasoline (petrol)
and keep it away from heat, sparks, and open
flames.
VENTILATION
Gasoline vapor is heavier than air and is
deadly if inhaled in large quantities. Engine
exhaust gases are harmful to...

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 SAFETY WHILE WORKING
Under normal conditions of use there should
be no hazards from the use of the lubricants
mentioned in this manual, but safety is all-
important, and by adopting good safety prac-
tises any risk is minimized. A summary of the
most important precautions is as follows:
1. While working, maintain good standards of
personal and industrial hygiene.
2. Clothing which has become contaminated
with lubricants should be changed as soon
as practicable and laundered before fur-...

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GEN
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 SAFETY WHILE WORKING
3.Non-reusable items
Always use new gaskets, packings, O-
rings, oil seals, split-pins, circlips, etc., on
reassembly.
DISASSEMBLY AND ASSEMBLY
1. Clean parts with compressed air when dis-
assembling.
2. Oil the contact surfaces of moving parts
during assembly.
3. After assembly, check that moving parts
operate normally.
4. Install bearings with the manufacturer’s
markings on the side exposed to view and
liberally oil the bearings.
CAUTION:
Do not spin bearings with...

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SPECIAL TOOLS
SPECIAL TOOLS
Using the correct special tools recommended
by Yamaha, will aid the work and enable accu-
rate assembly and tune-up. Improvisations
and using improper tools can damage the
equipment.
NOTE:
For U.S.A. and Canada, use part numbers
starting with “J-”, “YB-”, “YM-”, “YS-”, “YU-” or
“YW-”.
For other countries, use part numbers start-
ing with “90890-”.
MEASURING
1
Dial gauge
P/N. YU-03097
90890-01252
2
Dial gauge stand
P/N. 90890-06583
3
Dial gauge needle
P/N....

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SPECIAL TOOLS
A
Fuel pressure gauge
P/N. YB-06766
90890-06786
B
Compression gauge extension
P/N. 90890-06582
C
Cylinder gauge set
P/N. YU-03017
90890-06759
D
Compression gauge
P/N. YU-33223-1
90890-03160
E
Peak voltage adapter
P/N. YU-39991
90890-03172
F
Spark gap tester
P/N. YM-34487
90890-06754
G
Test harness (2 pins)
P/N. YB-06792
90890-06792
H
Test harness (3 pins)
P/N. YB-06791
90890-06791
I
Test harness (3 pins)
P/N. YB-06770
90890-06770
J
Test harness (6 pins)
P/N. YB-06790...

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SPECIAL TOOLS
M
Test harness (3 pins)
P/N. YB-06769
90890-06769
N
Vacuum/pressure pump gauge set
P/N. YB-35956-A
90890-06756
O
Yamaha diagnostic system for Watercraft
P/N. 60E-85300-01
P
Yamaha diagnostic system for Watercraft
(CD-ROM only)
P/N. 60E-WS853-00
M
PNYB-06769
90890-06769YB-35956-A
90890-06756
60E-WS853-00
O60E-85300-01
YAMAHA DIAGNOSTIC SYSTEM
for Watercraft
INSTALLATION MANUAL
60E-2819K-10 

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GEN
INFO
SPECIAL TOOLS
REMOVAL AND INSTALLATION
1
Oil filter wrench
P/N. YU-38411 
90890-01426
2
Coupler wrench
P/N. YW-06551 
90890-06551
3
Sheave holder
P/N. YS-01880-A
90890-01701
4
Rotor puller
P/N. YM-01082
90890-01080
5
Rotor holder
P/N. YU-01235
90890-01235
6
Valve spring compressor
P/N. YM-04019
90890-04019
7
Valve spring compressor attachment
P/N. YM-4114 (ø19 mm)
90890-04114 (ø19 mm)
YM-4108 (ø22 mm)
90890-04108 (ø22 mm)
8
Valve guide remover
P/N. YM-04111 (ø4.0 mm)
90890-04111 (ø4.0 mm)...

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SPECIAL TOOLS
A
Valve seat cutter
Intake
P/N. 90890-06813 (60°)
90890-06814 (45°)
90890-06815 (30°)
Exhaust
P/N. 90890-06315 (60°)
90890-06312 (45°)
90890-06328 (30°)
B
Valve seat cutter holder
P/N. 90890-06811 (ø4.0 mm)
90890-06812 (ø4.5 mm)
C
Valve seat cutter set
P/N. YM-91043-C
D
Piston ring compressor
P/N. YM-08037
90890-05158
E
Drive shaft holder (impeller)
P/N. YB-06151 
90890-06519
F
Slide hammer set (jet pump bearing)
P/N. YB-06096
G
Stopper guide plate (jet pump bearing)
P/N....

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SPECIAL TOOLS
M
Ball bearing attachment 
(jet pump oil seal)
P/N. YB-06085 
90890-06634
N
Driver rod 
(intermediate shaft and jet pump)
P/N. YB-06071
90890-06606 
O
Bearing inner/outer race attachment 
(jet pump bearing)
P/N. YB-34474
P
Shaft holder (intermediate shaft)
P/N. YB-06552
90890-06552
Q
Bearing outer race attachment 
(intermediate shaft)
P/N. YB-06156
90890-06626
YB-06071 90890-06606 YB-34474NO
YB-06552
90890-06552YB-06156 90890-06626PQ
YB-06085 90890-06634M