2005 YAMAHA VX110 water pump

3-25
E
INSP
ADJ
JET PUMP UNIT
JET PUMP UNIT
Impeller inspection
1. Check:
Impeller 1

Damage/wear →
Replace.
Nicks/scratches →
File or grind.
2. Measure:
Impeller-to-housing clearancea

Out of specification →
Replace.
Maximum impeller-to-housing
clearance:
0.35–0.45 mm (0.0138–0.0177 in)
Measurement steps:
Remove the battery leads.
Remove the intake grate and intake duct.
Refer to “INTAKE GRATE AND RIDE
PLATE” in Chapter 6.
Measure the clearance at each impeller
blade as shown (a total of three measure-
ments).
Install the intake duct and intake grate.
Refer to “INTAKE GRATE AND RIDE
PLATE” in Chapter 6.
Install the battery leads.
Water inlet strainer inspection
1. Inspect:
Water inlet strainer
Contaminants →
Clean.
Cracks/damage →
Replace.
Inspection steps:
Remove the ride plate.
Refer to “INTAKE GRATE AND RIDE
PLATE” in Chapter 6.
Remove the rubber plate.
Refer to “JET PUMP UNIT” in Chapter 6.
Remove the water inlet cover 1
.
Inspect the water inlet strainer mesh a
.
Install the water inlet cover.
Install the rubber plate.
Refer to “JET PUMP UNIT” in Chapter 6.
Install the ride plate.
Refer to “INTAKE GRATE AND RIDE
PLATE” in Chapter 6.
a
1
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5-12
EPOWROIL TANK
OIL TANK
EXPLODED DIAGRAM
REMOVAL AND INSTALLATION CHART
Step Procedure/Part name Q’ty Service points
OIL TANK REMOVAL
Follow the left “Step” for removal.
Engine unit Refer to “ENGINE UNIT”.
Intake assembly Refer to “FUEL INJECTION SYSTEM” in
Chapter 4.
1 Clamp/cooling water hose 1/1È
To exhaust pipe 1
2Bolt 4
3 Water jacket 1
4Gasket 1
5 Clamp/breather hose 2/1
6 Clamp/breather hose 2/1É
To oil pump
7Bolt 2
8 Collar 2
Ì
LT
572
LT
572
LT
572
LT
572
LT
572
LT
572
23 1925 24
26
25
2116 17 15
14
1220 22
3
4
6 8
9
72
6
AA
6 × 30 mm
2nd 7.6 N  m (0.76 kgf
 m, 5.5 ft
 Ib) 1st 3.7 N  m (0.37 kgf
 m, 2.7 ft
 Ib)
2nd 15 N  m (1.5 kgf
 m, 11 ft
 Ib) 1st 2.0 N  m (0.2 kgf
 m, 1.4 ft
 Ib)
3rd 39 N  m (3.9 kgf
 m, 28 ft
 Ib)
2nd 39 N  m (3.9 kgf
 m, 28 ft
 Ib) 1st 15 N  m (1.5 kgf
 m, 11 ft
 Ib)
10 × 85 mm2nd 15 N  m (1.5 kgf
 m, 11 ft
 Ib) 1st 2.0 N  m (0.2 kgf
 m, 1.4 ft
 Ib)
10 × 70 mm
3rd 39 N  m (3.9 kgf
 m, 28 ft
 Ib)7.6 N 
m (0.76 kgf  m, 5.5 ft  Ib)
6 × 35 mm
È
ÉÌ13
LT
572
LT
572
LT
572
LT
572
18
102nd 7.6 N  m (0.76 kgf  m, 5.5 ft  Ib)
1st 3.7 N  m (0.37 kgf  m, 2.7 ft  Ib)
6 × 20 mm
Ê
Ë
a
1
5
1111
5
6 × 35 mm
Not reusable
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E
JET
PUMP
1
2
3
4
5
6
7
8
9
CHAPTER 6
JET PUMP UNIT
INTAKE GRATE AND RIDE PLATE ............................................................... 6-1
EXPLODED DIAGRAM ............................................................................. 6-1
REMOVAL AND INSTALLATION CHART ................................................ 6-1
JET PUMP UNIT .............................................................................................. 6-3
EXPLODED DIAGRAM ............................................................................. 6-3
REMOVAL AND INSTALLATION CHART ................................................ 6-3
REVERSE GATE (DELUXE MODEL ONLY) .................................................. 6-5
EXPLODED DIAGRAM ............................................................................. 6-5
REMOVAL AND INSTALLATION CHART ................................................ 6-5
JET THRUST NOZZLE, IMPELLER DUCT, AND
IMPELLER HOUSING 1 ................................................................................. 6-6
EXPLODED DIAGRAM ............................................................................. 6-6
REMOVAL AND INSTALLATION CHART ................................................ 6-6
IMPELLER DUCT AND DRIVE SHAFT .......................................................... 6-8
EXPLODED DIAGRAM ............................................................................. 6-8
REMOVAL AND INSTALLATION CHART ................................................ 6-8
SERVICE POINTS .................................................................................. 6-10
Drive shaft removal ........................................................................... 6-10
Impeller inspection ............................................................................ 6-11
Drive shaft inspection ........................................................................ 6-11
Drive shaft installation ....................................................................... 6-12
TRANSOM PLATE AND HOSES .................................................................. 6-15
EXPLODED DIAGRAM ........................................................................... 6-15
REMOVAL AND INSTALLATION CHART .............................................. 6-15
SERVICE POINTS .................................................................................. 6-17
Bilge strainer inspection .................................................................... 6-17
Bilge hose inspection ........................................................................ 6-17
Cooling water hose inspection .......................................................... 6-17
BEARING HOUSING ..................................................................................... 6-18
EXPLODED DIAGRAM ........................................................................... 6-18
REMOVAL AND INSTALLATION CHART .............................................. 6-18
SERVICE POINTS .................................................................................. 6-21
Driven coupling removal and installation........................................... 6-21
Intermediate drive shaft removal ....................................................... 6-21
Bearing removal ................................................................................ 6-22
Bearing and intermediate drive shaft inspection ............................... 6-22
Driven coupling inspection ................................................................ 6-22
Bearing and oil seals installation ....................................................... 6-23
Intermediate drive shaft installation................................................... 6-24
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6-7
E
JET
PUMP
JET THRUST NOZZLE, IMPELLER DUCT, AND
IMPELLER HOUSING 1
EXPLODED DIAGRAM
Step Procedure/Part name Q’ty Service points
10 Bolt 4
11 Water inlet cover 1
12 Packing 1
13 Water inlet strainer 1
14 Packing 1
Reverse the removal steps for installation.
10 × 125 mm
40 N • m (4.0 kgf • m, 29 ft • Ib)
6 × 35 mm
6.6 N • m (0.66 kgf • m, 4.8 ft • Ib)
10
11 12 13 14
9 97
LT
572
LT
LT
572
LT
LT
572
LT
8
10 × 125 mm
40 N • m (4.0 kgf • m, 29 ft • Ib)
1
23
4
4
6 5
8 × 20 mm
15 N • m (1.5 kgf • m, 11 ft • Ib)
LT
271
AA
1104J
1104J
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6-15
E
JET
PUMPTRANSOM PLATE AND HOSES
TRANSOM PLATE AND HOSES
EXPLODED DIAGRAM
REMOVAL AND INSTALLATION CHART
Step Procedure/Part name Q’ty Service points
TRANSOM PLATE AND HOSES
REMOVALFollow the left “Step” for removal.
Exhaust system Refer to “EXHAUST SYSTEM” in Chapter 8.
Jet pump unit assembly Refer to “JET PUMP UNIT”.
1 Hose clamp 2
2 Cooling water hose 1 Cooling water outlet (cylinder head)
3 Bilge hose 1 1
4 Hose clamp 1
5 Cooling water hose 1 Cooling water inlet
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6-17
E
JET
PUMPTRANSOM PLATE AND HOSES
SERVICE POINTS
Bilge strainer inspection
Refer to “JET PUMP UNIT” in
Chapter 3.
Bilge hose inspection
1. Inspect:
Bilge hoses
Cracks/damage/wear →
Replace.
Cooling water hose inspection
1. Inspect:
Cooling water hoses
Cracks/damage/wear →
Replace.
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7-51
E
–+ELECINDICATION SYSTEM
OIL PRESSURE SWITCH
1. Measure:
Oil pressure switch continuity
Out of specification → Replace.
Lower unit pressure/vacuum
tester:
YB-35956-A
Vacuum/pressure pump gauge
set:
90890-06756
Oil pressure switch continuity
pressure:
128 kPa (1.28 kgf/cm
2, 18.6 psi) –
167 kPa (1.67 kgf/cm2, 24.2 psi)
MULTIFUNCTION METER
Multifunction meter
1. Check:
Multifunction meter
Cracked meter housing → Replace the
multifunction meter.
Meter is fogged/shows signs of water
intrusion → Replace the multifunction
meter.
MULTIFUNCTION METER REMOVAL
Refer to “ENGINE HATCH COVER” in
Chapter 8.
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8-31
E
HULL
HOODEXHAUST SYSTEM
EXHAUST SYSTEM
EXPLODED DIAGRAM
REMOVAL AND INSTALLATION CHART
Step Procedure/Part name Q’ty Service points
EXHAUST SYSTEM REMOVAL
Follow the left “Step” for removal.
Deck beam Refer to “SEAT AND HAND GRIP”.
Jet pump unit assembly Refer to “JET PUMP UNIT” in Chapter 6.
NOTE:
When removing the water lock and exhaust
joint, it is not necessary to remove the jet
pump unit.
1 Band 1
2 Joint clamp 1 1
3 Hose clamp 1 1
4 Water lock 1
3
1 2
6
7
9
85
4 14
13
15 1817
12
1116
10
F1K3.7 N • m (0.37 kgf • m, 2.7 ft • Ib)
5.4 N • m (0.54 kgf • m, 3.9 ft • Ib)
3.7 N • m (0.37 kgf • m, 2.7 ft • Ib)
3.7 N • m (0.37 kgf • m, 2.7 ft • Ib)
2nd 2.4 N • m (0.24 kgf • m, 1.7 ft • Ib) 1st 2.4 N • m (0.24 kgf • m, 1.7 ft • Ib)
2nd 2.4 N • m (0.24 kgf • m, 1.7 ft • Ib) 1st 2.4 N • m (0.24 kgf • m, 1.7 ft • Ib)
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