2005 YAMAHA VX110 cooling

3-1
E
INSP
ADJ
MAINTENANCE INTERVAL CHART
MAINTENANCE INTERVAL CHART
The following chart should be considered strictly as a guide to general maintenance intervals.
Depending on operating conditions, the intervals of maintenance should be changed.
*1: After every use
MAINTENANCE INTERVAL INITIALTHEREAFTER
EVERYPAGE
10 hours 50 hours 100 hours 100 hours 200 hours
ITEM6
months12
months12
months24
months
Spark plug Inspect, clean, adjust 3-20
Lubrication points Lubricate 3-26
Fuel system Inspect3-7
Fuel tank Inspect, clean 3-7
Trolling speed Inspect3-6
Throttle shaft Inspect—
Cooling water passages Flush *1 —
Water inlet strainer Inspect, clean —
Bilge strainer Clean3-26
Impeller Inspect3-25
Jet thrust nozzle angle Inspect, adjust 3-2
Shift cable and
mechanism
(Deluxe model only)Inspect, adjust 3-5
Throttle cable Inspect, adjust 3-4
Stern drain plugs Inspect, replace 3-26
Battery Inspect 3-22
Rubber coupling Inspect—
Engine mount Inspect5-7
Nuts and bolts Inspect—
Air filter Inspect, replace 3-18
Engine oil Replace 3-14
Engine oil filter Replace 3-16
Valve clearance Inspect, adjust 3-8
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3-14
E
INSP
ADJ
POWER UNIT
8. Remove:
Dial gauge
Dial gauge stand
Dial gauge needle
9. Install:
All removed parts
NOTE:
For installation, reverse the removal proce-
dure.
Engine oil level check
1. Check:
Engine oil level
Checking steps:
CAUTION:
When checking the engine oil level on
water, be careful of other watercraft,
boats, swimmers, or obstacles. The
water current or wind can cause the
watercraft to move and lead to a colli-
sion.
When checking the engine oil level on
land, supply water to the cooling water
passages.
Make sure that engine has enough oil
but do not overfill. If there is too little
oil, the engine can be damaged. If there
is too much oil, the air filter can
become saturated with oil, perma-
nently damaging the filter and reduc-
ing engine performance. Follow the
checking procedure carefully.
Make sure that debris or water does
not enter the oil tank filler hole. Debris
or water in the engine oil can cause
serious engine damage.
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EPOWR
CONNECTING RODS AND PISTONS .......................................................... 5-80
EXPLODED DIAGRAM ........................................................................... 5-80
REMOVAL AND INSTALLATION CHART .............................................. 5-80
SERVICE POINTS .................................................................................. 5-82
Connecting rod and piston removal .................................................. 5-82
Cylinder and piston inspection .......................................................... 5-83
Piston ring inspection ........................................................................ 5-84
Piston pin inspection ......................................................................... 5-86
Connecting rod inspection................................................................. 5-87
Connecting rod and piston installation .............................................. 5-89
CRANKSHAFT .............................................................................................. 5-93
EXPLODED DIAGRAM ........................................................................... 5-93
REMOVAL AND INSTALLATION CHART .............................................. 5-93
SERVICE POINTS .................................................................................. 5-94
Crankshaft removal ........................................................................... 5-94
Crankshaft inspection........................................................................ 5-94
Crankshaft installation ....................................................................... 5-97
COOLING WATER HOSE ............................................................................. 5-98
EXPLODED DIAGRAM ........................................................................... 5-98
REMOVAL AND INSTALLATION CHART .............................................. 5-98
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5-2
EPOWRENGINE UNIT
EXPLODED DIAGRAM
Step Procedure/Part name Q’ty Service points
3Bolt 2
4 Air filter case assembly 1
5Bolt 1
6 ECM and rectifier/regulator
assembly1
7 Clamp/cooling water hose 1/1 Cooling water pilot outlet
8 Clamp/cooling water hose 1/1 Cooling water inlet
9 Clamp/cooling water hose 1/1 Cooling water outlet
10 Coupler 10
11 Bolt/collar 1/1
12 Coupling cover 1
14 10
10
2
113
3
4
11
15
12
8
7
9
6
5
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 × 35 mm
6 × 25 mm
7.8 N  m (0.78 kgf  m, 5.6 ft  Ib)
8 × 35 mm 17 N  m (1.7 kgf  m, 12 ft  Ib)
17 N  m (1.7 kgf  m, 12 ft  Ib)8 × 40 mm
17 N  m (1.7 kgf  m, 12 ft  Ib)
10LT
242
LT
LT
572
LT
LT
271
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5-8
EPOWREXHAUST PIPES 1 AND 2
EXHAUST PIPES 1 AND 2
EXPLODED DIAGRAM
REMOVAL AND INSTALLATION CHART
Step Procedure/Part name Q’ty Service points
EXHAUST PIPES 1 AND 2
REMOVALFollow the left “Step” for removal.
Engine unit Refer to “ENGINE UNIT”.
È
For cooling water pilot outlet on port side
É
From water jacket
1 Clamp/cooling water hose 1/1
2 Clamp/cooling water hose 1/1
3Bolt 2
4 Thermoswitch (exhaust) 1
5 Exhaust joint clamp 2 Slide the outer exhaust joint for exhaust
manifold side
6 Exhaust joint clamp 2
6
64 3
É
5
2
È 6 × 16 mm
7.6 N  m (0.76 kgf  m, 5.5 ft  Ib)
2nd 3.4 N  m (0.34 kgf  m, 2.5 ft  Ib) 1st 3.4 N  m (0.34 kgf  m, 2.5 ft  Ib)LT
242
LT
242
LT
572
LT
LT
572
LT
LT
242
1
LT
242
LT
242
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5-11
EPOWREXHAUST MANIFOLD
EXHAUST MANIFOLD
EXPLODED DIAGRAM
REMOVAL AND INSTALLATION CHART
Step Procedure/Part name Q’ty Service points
EXHAUST MANIFOLD REMOVAL
Follow the left “Step” for removal.
Exhaust pipes 1 and 2 Refer to “EXHAUST PIPES 1 AND 2”.
1 Clamp/cooling hose 2/1È
To cylinder block
2Bolt 5
3Bolt 6
4 Exhaust manifold 1
5Gasket 1
6 Dowel pin 2
Reverse the removal steps for installation.
6
5 3È
6
2
4
1
1
1
2nd 22 N  m (2.2 kgf  m, 16 ft  Ib) 1st
22 N  m (2.2 kgf  m, 16 ft  Ib)
3rd 35 N  m (3.5 kgf  m, 25 ft  Ib)
8 × 75 mm
2nd 22 N  m (2.2 kgf  m, 16 ft  Ib) 1st 22 N  m (2.2 kgf  m, 16 ft  Ib)
3rd 35 N  m (3.5 kgf  m, 25 ft  Ib)
8 × 155 mm
LT
242
LT
242
Not reusable
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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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5-13
EPOWROIL TANK
EXPLODED DIAGRAM
Step Procedure/Part name Q’ty Service points
9 Oil separator 1
10 Clamp/breather hose 1/1Ê
To air intake pipe
11 Clamp/breather hose 1/1Ë
From cylinder head cover
Mark a

12 Clamp/cooling water hose 1/1Ì
From cooling water inlet
13 Bolt 1
14 Collar 1
15 Band 1
16 Bolt 3
17 Ground lead box 1
18 O-ring 1
19 Bolt 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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