Yamaha Waverunner 3 Manual

E
JET
PUMP
1
2
3
4
5
6
7
8
9
TRANSOM PLATE AND HOSES .................................................................. 6-19
EXPLODED DIAGRAM ........................................................................... 6-19
REMOVAL AND INSTALLATION CHART .............................................. 6-19
SERVICE POINTS .................................................................................. 6-22
Bilge strainer inspection .................................................................... 6-22...

6-1
E
JET
PUMP
INTAKE GRATE, RIDE PLATE, AND INTAKE DUCT
EXPLODED DIAGRAM
REMOVAL AND INSTALLATION CHART
Step Procedure/Part name Q’ty Service points
INTAKE GRATE, RIDE PLATE, 
AND INTAKE DUCT REMOVALFollow the left “Step” for removal.
1Bolt 2
2Bolt 2
3 Intake grate 1
4Screw 4
5 Speed sensor 1
NOTE:
Route the speed sensor lead between the
jet pump unit and the bilge hose.
6Bolt 4
INTAKE GRATE, RIDE PLATE, AND INTAKE DUCT 

6-2
E
JET
PUMPINTAKE GRATE, RIDE PLATE, AND INTAKE DUCT
EXPLODED DIAGRAM
Step Procedure/Part name Q’ty Service points
7 Ride plate 1
8Bolt 4
9 Intake duct 1
10 Felt packing 1
Reverse the removal steps for installation.
Not reusable 

6-3
E
JET
PUMPJET PUMP UNIT
JET PUMP UNIT
EXPLODED DIAGRAM
REMOVAL AND INSTALLATION CHART
Step Procedure/Part name Q’ty Service points
JET PUMP UNIT REMOVAL
Follow the left “Step” for removal.
1 Shift cable joint 1
2 QSTS cable joint 1
3 Bilge hose 1
NOTE:
Route the speed sensor lead between the
jet pump unit and the bilge hose.
4 Nut/washer 1/2
5 Steering cable joint 1
6 Clamp/spout hose 1/1
8 × 24 mm 
14 N • m (1.4 kgf 
• m, 10 ft 
• Ib)
6 × 22 mm 
6.8 N • m (0.68 kgf 
• m, 4.9 ft 
• Ib)
6 × 80 mm
7.8...

6-4
E
JET
PUMPJET PUMP UNIT
EXPLODED DIAGRAM
Step Procedure/Part name Q’ty Service points
7Bolt 4
8 Collar 4
9 Rubber plate 2
10 Bolt 1
11 Bolt 4
12 Jet pump unit assembly 1
13 Dowel pin 2
14 Impeller housing 2 1
15 Dowel pin 2
Reverse the removal steps for installation.
8 × 24 mm 
14 N • m (1.4 kgf 
• m, 10 ft 
• Ib)
6 × 22 mm 
6.8 N • m (0.68 kgf 
• m, 4.9 ft 
• Ib)
6 × 80 mm
7.8 N •
 m (0.78 kgf • m, 5.6 ft • Ib)
2.2 N • m (0.22 kgf 
• m, 1.6 ft 
• Ib)
6.8 N • m (0.68 kgf 
• m, 4.9 ft 
• Ib)
10 × 95...

6-5
E
JET
PUMPJET PUMP UNIT
EXPLODED DIAGRAM
REMOVAL AND INSTALLATION CHART
Step Procedure/Part name Q’ty Service points
SPEED SENSOR DISASSEMBLY
Follow the left “Step” for disassembly.
1 Paddle wheel set 1
2 Speed sensor 1
Reverse the disassembly steps for 
assembly.
FWD
1
2
Not reusable 

6-6
E
JET
PUMPREVERSE GATE
REVERSE GATE
EXPLODED DIAGRAM
REMOVAL AND INSTALLATION CHART
Step Procedure/Part name Q’ty Service points
REVERSE GATE REMOVAL
Follow the left “Step” for removal.
1 Clamp/spout hose 1/1
2Bolt 2
3 Washer 2
4 Collar 2
5 Reverse gate assembly 1
6Nut 1
7Bolt 1
8 Washer 2 

6-7
E
JET
PUMPREVERSE GATE
EXPLODED DIAGRAM
Step Procedure/Part name Q’ty Service points
9 Roller 1
10 Bolt 6
11 Reverse gate stay 2
12 Nut 1
13 Washer 1
14 Bolt 1
15 Lever 1 1
16 Spacer 1
17 Nut 1 

6-8
E
JET
PUMPREVERSE GATE
EXPLODED DIAGRAM
Step Procedure/Part name Q’ty Service points
18 Washer 1
19 Bolt 1
20 Washer 1
21 Collar 1
22 Spring 1
23 Lever 2 1
24 Washer 1
Reverse the removal steps for installation. 

6-9
E
JET
PUMPREVERSE GATE
SERVICE POINTS
Lever 1 installation
1. Install:
Bolt 1
 
Lever 1 2
 
Spacer 3
 
Reverse gate 4
 
Washer 5
 
Nut 6
 
Lever 2 installation
1. Install:
Bolt 1
 
Washer 2
 
Collar 3
 
Spring 4
 
Lever 2 5
 
Washer 6
 
NOTE:
When installing the spring, hook the spring
end a
 to lever 2 and spring end b
 to the
reverse gate, as shown in the illustration.
When installing the lever 2, hook the lever 2
end c
 to lever 1 end d
, as shown in the
illustration.
4
a
cd b
2....