Yamaha Waverunner 3 Manual

4-2
EFUELFUEL TANK AND FUEL PUMP MODULE
EXPLODED DIAGRAM
Step Procedure/Part name Q’ty Service points
4 Fuel tank breather hose 1
NOTE:
Make sure that the inner seal of the coupler
is installed properly before connecting the
coupler. 5 Fuel sender coupler 1
6 Fuel pump module coupler 1
7 Cover 1
8 Fuel hose 1
9Nut 9
10 Retainer 1
11 Fuel pump module 1
12 Packing 1
1.3 N •
 m (0.13 kgf • m, 0.9 ft • Ib)
8 × 18 mm 16 N •
 m (1.6 kgf • m, 11 ft • Ib)
5.9 N • m (0.59 kgf 
• m, 4.3 ft 
• Ib)
4.2 N • m (0.42...

4-3
EFUELFUEL TANK AND FUEL PUMP MODULE
EXPLODED DIAGRAM
Step Procedure/Part name Q’ty Service points
13 Fuel sender assembly 1
14 Hose clamp 2
15 Fuel filler hose 1
16 Nut 1
17 Fuel filler neck 1
18 Rubber seal 1
19 Bolt 2
20 Fuel tank assembly 1
21 Strainer 1
22 Bolt 2
23 Fuel tank belt 2
Reverse the removal steps for installation.
1.3 N •
 m (0.13 kgf • m, 0.9 ft • Ib)
8 × 18 mm 16 N •
 m (1.6 kgf • m, 11 ft • Ib)
5.9 N • m (0.59 kgf 
• m, 4.3 ft 
• Ib)
4.2 N • m (0.42 kgf 
• m, 3.0 ft 
• Ib)
17
18...

4-4
EFUELFUEL TANK AND FUEL PUMP MODULE
SERVICE POINTS
Fuel hose disconnection
1. Disconnect:
Fuel hose
Refer to “FUEL INJECTION SYSTEM”.
Fuel pump module removal
1. Remove:
Nuts
Retainer
NOTE:
Loosen the nuts in the sequence shown.1
4
9 6 238
7
5
2. Remove:
Fuel pump module 1
 
NOTE:
Remove the float 2
 at an angle because it
could catch on the fuel tank.21
Fuel sender disassembly
1. Disconnect:
Fuel sender coupler
2. Remove:
Retainer 1
 
NOTE:
Push the tabs in direction of arrows a and
slide the...

4-5
EFUELFUEL TANK AND FUEL PUMP MODULE
Check valve inspection
1. Check:
Check valve
Faulty →
 Replace.
Checking steps:
Connect a hose to the end of check valve
“A” and blow into it.
Air should come out from end “B”.
Connect the hose to the end of check
valve “B” and blow into it.
Air should not come out from end “A”.
A
AB
B
Rollover valve inspection
1. Check:
Rollover valve
Faulty →
 Replace.
Fuel level sender inspection
Refer to “FUEL CONTROL SYSTEM” in
Chapter 7.
Fuel tank inspection
1. Inspect:...

4-6
EFUELFUEL TANK AND FUEL PUMP MODULE
Fuel pump filter inspection
1. Inspect:
Fuel pump filter 1
 
Clog/contaminants →
 Wash the fuel
pump filter in kerosene or gasoline.
1
Fuel strainer inspection
1. Inspect:
Fuel strainer 
Clog/contaminants →
 Clean.
Fuel pump module installation
1. Tighten:
Nuts
NOTE:
Tighten the nuts in the sequence shown.
Fuel hose connect
Refer to “FUEL INJECTION SYSTEM”.
T R..
Fuel pump module nut:
1st:
3.2 N  m 
(0.32 kgf  m, 2.3 ft  lb)
2nd:
6.4 N  m 
(0.64 kgf  m, 4.6...

4-7
EFUELFUEL INJECTION SYSTEM
FUEL INJECTION SYSTEM
EXPLODED DIAGRAM
REMOVAL AND INSTALLATION CHART
Step Procedure/Part name Q’ty Service points
THROTTLE BODIES REMOVAL
Follow the left “Step” for removal.
1Screw 2
2 Air filter case cover 1
3 Air filter 1
4Bolt 4
5 Flame arrester 1
NOTE:
When removing the flame arrester, slide the
springs off.
6Spring 4
AA
LT
572
LT
LT
572
LT
LT
572
LT
LT
242
LT
E
1
4
5
6
16
22
18
2020
19 21
7
8
9 15
14 12
13
11 32
6 × 7 mm
2nd   6.5 N • m (0.65 kgf 
• m, 4.7 ft 
• Ib)...

4-8
EFUELFUEL INJECTION SYSTEM
EXPLODED DIAGRAM
Step Procedure/Part name Q’ty Service points
7 Throttle cable 1
8Bolt 2
9 Throttle cable holder 1
10 Cover 1
11 Fuel hose 1
12 Bolt 2
13 Fuel hose holder 1
14 Clamp 1
15 Clamp 1
16 Bolt 8
AA
LT
572
LT
LT
572
LT
LT
572
LT
LT
242
LT
E
1
4
5
6
16
22
18
2020
19 21
7
8
9 15
14 12
13
11 32
6 × 7 mm
2nd   6.5 N • m (0.65 kgf 
• m, 4.7 ft 
• Ib) 1st    3.3 N • m (0.33 kgf 
• m, 2.4 ft 
• Ib)
8 × 50 mm
2nd   22 N • m (2.2 kgf 
• m, 16 ft 
• Ib) 1st    11 N • m (1.1...

4-9
EFUELFUEL INJECTION SYSTEM
EXPLODED DIAGRAM
Step Procedure/Part name Q’ty Service points
17 Throttle bodies 1
18 Intake air pressure sensor coupler 1
19 Intake air temperature sensor 
coupler1
20 Fuel injector coupler 4
21 Throttle position sensor coupler 1
22 Joint connector 2
Reverse the removal steps for installation.
AA
LT
572
LT
LT
572
LT
LT
572
LT
LT
242
LT
E
1
4
5
6
16
22
18
2020
19 21
7
8
9 15
14 12
13
11 32
6 × 7 mm
2nd   6.5 N • m (0.65 kgf 
• m, 4.7 ft 
• Ib) 1st    3.3 N • m (0.33 kgf 
•...

4-10
EFUELFUEL INJECTION SYSTEM
EXPLODED DIAGRAM
REMOVAL AND INSTALLATION CHART
Step Procedure/Part name Q’ty Service points
AIR FILTER CASE REMOVAL
Follow the left “Step” for removal.
Throttle bodies
1 Clamp/breather hose 1/1
2 Band 1 Unfasten the wire harness.
3 Lighting coil coupler 1 From wire harness bracket 2
4 Thermoswitch coupler (engine) 1 From wire harness bracket 2
5 Pulser coil coupler 1 From wire harness bracket 2
6 Thermoswitch coupler (exhaust) 1 From wire harness bracket 1
7 Camshaft...

4-11
EFUELFUEL INJECTION SYSTEM
EXPLODED DIAGRAM
Step Procedure/Part name Q’ty Service points
8 Wire harness coupler 1
9Bolt 3
10 Air filter case 1
11 Bolt 2
12 Wire harness bracket 1 1
13 Sub wire harness 1
14 Bolt 2
15 Fuel hose bracket 1
16 Screw 1
17 Wire harness bracket 2 1
3165
15 14 2423 25
10
18
1797
6
13
12
8
11
22
21
4
1920LT
271
LT
242
LT
271
12
LT
572
LT
LT
242
8 × 35 mm
2nd   18 N • m (1.8 kgf 
• m, 13 ft 
• Ib) 1st    8.8 N • m (0.88 kgf 
• m, 6.4 ft 
• Ib)
6 × 16 mm
2nd   7.6 N • m (0.76...