2005 YAMAHA VX110 service

EFUEL
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CHAPTER 4
FUEL SYSTEM
FUEL TANK AND FUEL PUMP MODULE...................................................... 4-1
EXPLODED DIAGRAM ............................................................................. 4-1
REMOVAL AND INSTALLATION CHART ................................................ 4-1
SERVICE POINTS .................................................................................... 4-4
Fuel hose disconnection ..................................................................... 4-4
Fuel pump module removal................................................................. 4-4
Check valve inspection ....................................................................... 4-4
Fuel sender inspection ........................................................................ 4-5
Fuel tank inspection ............................................................................ 4-5
Fuel hose inspection ........................................................................... 4-5
Fuel pump filter inspection .................................................................. 4-5
Fuel pump module installation ............................................................ 4-6
Fuel hose connect ............................................................................... 4-6
FUEL INJECTION SYSTEM ............................................................................ 4-7
EXPLODED DIAGRAM ............................................................................. 4-7
REMOVAL AND INSTALLATION CHART ................................................ 4-7
THROTTLE BODY ASSEMBLY AND INTAKE MANIFOLD ........................ 4-10
EXPLODED DIAGRAM ........................................................................... 4-10
REMOVAL AND INSTALLATION CHART .............................................. 4-10
SERVICE POINTS .................................................................................. 4-12
Fuel hose clamps removal ................................................................ 4-12
Hose clamps installation ................................................................... 4-12
Fuel hose disconnection ................................................................... 4-12
Fuel line inspection ........................................................................... 4-13
Fuel hose installation (replacing with new fuel hose) ........................ 4-14
Fuel hose connection ........................................................................ 4-14
Fuel injectors inspection.................................................................... 4-15
Throttle body assembly inspection .................................................... 4-15
Accelerator position sensor inspection.............................................. 4-15
Intake assembly installation .............................................................. 4-16
Air filter case assembly installation ................................................... 4-17
Fuel pressure measurement ............................................................. 4-17
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4-1
EFUELFUEL TANK AND FUEL PUMP MODULE
FUEL TANK AND FUEL PUMP MODULE
EXPLODED DIAGRAM
REMOVAL AND INSTALLATION CHART
Step Procedure/Part name Q’ty Service points
FUEL TANK REMOVAL
Follow the left “Step” for removal.
Storage compartment panel Refer to “FRONT HOOD” in Chapter 8.
Ventilation hose From ventilation fitting
Engine unit Refer to “ENGINE UNIT” in Chapter 5.
NOTE:
When removing the pump module only, it is
not necessary to remove the engine unit.
1 Fuel tank breather hose 1
2 Check valve 1
NOTE:
Make sure the arrow direction pointed
toward fuel tank.
7
10
11 3
2
1
18
17121315
16
14
12 6 5
4 8
9
2nd 6.4 N • m (0.64 kgf  m, 4.6 ft  Ib) 1st 3.2 N  m (0.32 kgf  m, 2.3 ft  Ib)
3.7 N  m (0.37 kgf  m, 2.7 ft  Ib)
5.9 N  m (0.59 kgf  m, 4.3 ft  Ib)
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4-2
EFUELFUEL TANK AND FUEL PUMP MODULE
EXPLODED DIAGRAM
Step Procedure/Part name Q’ty Service points
3 Fuel tank breather hose 1
NOTE:
Make sure that the inner seal of the coupler
is installed properly before connecting the
coupler. 4 Fuel sender coupler 1
5 Fuel pump module coupler 1
6 Cover 1
7 Fuel hose 1
8Nut 9
9 Retainer 1
10 Fuel pump module 1
11 Packing 1
7
10
11 3
2
1
18
17121315
16
14
12 6 5
4 8
9
2nd 6.4 N  m (0.64 kgf  m, 4.6 ft  Ib) 1st 3.2 N  m (0.32 kgf  m, 2.3 ft  Ib)
3.7 N  m (0.37 kgf  m, 2.7 ft  Ib)
5.9 N  m (0.59 kgf  m, 4.3 ft  Ib)
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4-3
EFUELFUEL TANK AND FUEL PUMP MODULE
EXPLODED DIAGRAM
Step Procedure/Part name Q’ty Service points
12 Hose clamp 2
13 Fuel filler hose 1
14 Nut 1
15 Fuel filler neck 1
16 Rubber seal 1
17 Fuel tank belt 2
18 Fuel tank assembly 1
Reverse the removal steps for installation.
7
10
11 3
2
1
18
17121315
16
14
12 6 5
4 8
9
2nd 6.4 N  m (0.64 kgf  m, 4.6 ft  Ib) 1st 3.2 N  m (0.32 kgf  m, 2.3 ft  Ib)
3.7 N  m (0.37 kgf  m, 2.7 ft  Ib)
5.9 N  m (0.59 kgf  m, 4.3 ft  Ib)
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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.
238
7
5
1 238
7
5
1
4 4
9 6 6
2. Remove:
Fuel pump module 1

NOTE:
Remove the float 2
at an angle because it
could catch on the fuel tank.
12
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 come out from end “A”.
A A
B B
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4-7
EFUELFUEL INJECTION SYSTEM
FUEL INJECTION SYSTEM
EXPLODED DIAGRAM
REMOVAL AND INSTALLATION CHART
Step Procedure/Part name Q’ty Service points
FUEL INJECTION SYSTEM
REMOVALFollow the left “Step” for removal.
1 Cam position sensor coupler 1
2 Fuel injector coupler 4
3 Sensor assembly coupler 1
4 Thermoswitch coupler (exhaust) 1
5 Oil pressure switch coupler 1
6 Ground lead coupler 2
7 Joint connector 4 From fuel rail
8 Throttle body assembly coupler 1
9 Cover 1
17 N  m (1.7 kgf  m, 12 ft  Ib)
5 × 75 mm
1.2 N  m (0.12 kgf  m, 0.9 ft  Ib)
5 × 25 mm
1.5 N  m (0.15 kgf  m, 1.1 ft  Ib)
8 × 35 mm
17 N  m (1.7 kgf  m, 12 ft  Ib)2nd 18 N  m (1.8 kgf  m, 13 ft  Ib) 1st 8.8 N  m (0.88 kgf  m, 6.4 ft  Ib)
8 × 30 mm
2nd 39 N  m (3.9 kgf  m, 28 ft  Ib) 1st 15 N  m (1.5 kgf  m, 11 ft  Ib)
8 × 20 mm
LT
242
LT
242
LT
271
LT
572
LT
LT
572
LT
22 2320 19
2118 15 1316
14 1712
17
3
2
2
25
4
6
24
24
25 8
26
27
28
29
11 10
9
2.5 N  m (0.25 kgf  m, 1.8 ft  Ib)
6.5 N  m (0.65 kgf  m, 4.7 ft  Ib)
15 N  m (1.5 kgf  m, 11 ft  Ib)
3031
30
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4-8
EFUELFUEL INJECTION SYSTEM
EXPLODED DIAGRAM
Step Procedure/Part name Q’ty Service points
10 Fuel hose 1
11 Clamp 2
12 Hose screw clamp 1
13 Screw 2
14 Screw 4
15 Air filter case cover 1
16 Air intake duct 1
17 Air intake hose 1
18 Gasket 1
19 Air filter element 1
20 Bolt 4
17 N  m (1.7 kgf  m, 12 ft  Ib)
5 × 75 mm
1.2 N  m (0.12 kgf  m, 0.9 ft  Ib)
5 × 25 mm
1.5 N  m (0.15 kgf  m, 1.1 ft  Ib)
8 × 35 mm
17 N  m (1.7 kgf  m, 12 ft  Ib)2nd 18 N  m (1.8 kgf  m, 13 ft  Ib) 1st 8.8 N  m (0.88 kgf  m, 6.4 ft  Ib)
8 × 30 mm
2nd 39 N  m (3.9 kgf  m, 28 ft  Ib) 1st 15 N  m (1.5 kgf  m, 11 ft  Ib)
8 × 20 mm
LT
242
LT
242
LT
271
LT
572
LT
LT
572
LT
22 2320 19
2118 15 1316
14 1712
17
3
2
2
25
4
6
24
24
25 8
26
27
28
29
11 10
9
2.5 N  m (0.25 kgf  m, 1.8 ft  Ib)
6.5 N  m (0.65 kgf  m, 4.7 ft  Ib)
15 N  m (1.5 kgf  m, 11 ft  Ib)
3031
30
Not reusable
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4-9
EFUELFUEL INJECTION SYSTEM
EXPLODED DIAGRAM
Step Procedure/Part name Q’ty Service points
21 Air filter case 1
22 Collar 4
23 Grommet 4
24 Bolt 2
25 Intake assembly 1
26 Bolt 2
27 Throttle cable 1
28 Nut 2
29 Accelerator position sensor 1
30 Nut 4
31 Bracket 2
Reverse the removal steps for installation.
17 N  m (1.7 kgf  m, 12 ft  Ib)
5 × 75 mm
1.2 N  m (0.12 kgf  m, 0.9 ft  Ib)
5 × 25 mm
1.5 N  m (0.15 kgf  m, 1.1 ft  Ib)
8 × 35 mm
17 N  m (1.7 kgf  m, 12 ft  Ib)2nd 18 N  m (1.8 kgf  m, 13 ft  Ib) 1st 8.8 N  m (0.88 kgf  m, 6.4 ft  Ib)
8 × 30 mm
2nd 39 N  m (3.9 kgf  m, 28 ft  Ib) 1st 15 N  m (1.5 kgf  m, 11 ft  Ib)
8 × 20 mm
LT
242
LT
242
LT
271
LT
572
LT
LT
572
LT
22 2320 19
2118 15 1316
14 1712
17
3
2
2
25
4
6
24
24
25 8
26
27
28
29
11 10
9
2.5 N  m (0.25 kgf  m, 1.8 ft  Ib)
6.5 N  m (0.65 kgf  m, 4.7 ft  Ib)
15 N  m (1.5 kgf  m, 11 ft  Ib)
3031
30
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