2005 YAMAHA VX110 engine oil

5-6
EPOWRENGINE UNIT
7. Install:
Ignition coils
T R..
Ignition coils bolt:
7.6 N  m (0.76 kgf  m, 5.5 ft  lb)
LOCTITE 572
Engine unit removal
1. Remove:
Engine unit
Removal steps:
CAUTION:
Lift the engine unit carefully trying not to
hit it on the deck or letting it fall hard on
the hull.
Suspend the engine unit using all three
engine hangers, and then separate the
unit from the engine mount.
Shim removal
1. Remove:
Shims
NOTE:
To ease reassembly and coupling alignment,
remove the shims and organize them in their
respective groups (e.g., front right, rear left)
prior to removing the mounting bolts.
Engine mount inspection
1. Inspect:
Engine mounts
Cracks/damage →
Replace.
Refer to “ENGINE MOUNT” in Chapter
8.
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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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5-21
EPOWROIL PUMP
OIL PUMP
EXPLODED DIAGRAM
REMOVAL AND INSTALLATION CHART
Step Procedure/Part name Q’ty Service points
OIL PUMP ASSEMBLY
REMOVALFollow the left “Step” for removal.
Oil tank Refer to “OIL TANK”.
1 Drain plug/washer 1/1 Drain engine oil.
2Bolt 6
3Bolt 2
4Bolt 2
5 Oil pump assembly 1
6Gasket 1
7Pin 2
2nd 28 N  m (2.8 kgf  m, 20 ft  Ib) 1st 15 N  m (1.5 kgf  m, 11 ft  Ib)
8 × 112 mm
6 × 25 mm
10 N  m (1.0 kgf  m, 7.2 ft  Ib)
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)
6 × 16 mm
LT
572
LT
LT
572
LT
13 N  m (1.3 kgf  m, 9.4 ft  Ib)
8 × 12 mm
LT
572
LT
1
5
7 73
4
2
6
8
8
9
2nd 28 N  m (2.8 kgf  m, 20 ft  Ib) 1st 15 N  m (1.5 kgf  m, 11 ft  Ib)
8 × 95 mm
Not reusable
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5-33
EPOWRGENERATOR AND STARTER MOTOR
GENERATOR AND STARTER MOTOR
EXPLODED DIAGRAM
REMOVAL AND INSTALLATION CHART
Step Procedure/Part name Q’ty Service points
GENERATOR COVER AND
FLYWHEEL MAGNETO
REMOVALFollow the left “Step” for removal.
Engine unit Refer to “ENGINE UNIT”.
1 Nut/washer 1/1
2 Starter motor lead 1
3Bolt 2
4 Battery negative lead 1
5 Starter motor 1
6 Band 1
7 Lighting coil coupler 1
4 3
2 1
5
7
89
1113 12
18 16171920 21
15 14
AA
E
E
E
LT
572
LT
572
AA
AA
8 × 30 mm
18 N  m (1.8 kgf
 m, 13 ft
 Ib)
4.9 N 
m (0.49 kgf  m, 3.5 ft  Ib)
10 × 47 mm
75 N  m (7.5 kgf
 m, 54 ft
 Ib) 8 × 20 mm
24 N  m (2.4 kgf
 m, 17 ft
 Ib)
10 × 60 mm
2nd 50 N  m (5.0 kgf
 m, 36 ft
 Ib) 1st 15 N  m (1.5 kgf
 m, 11 ft
 Ib)
6
2nd 50 N  m (5.0 kgf
 m, 36 ft
 Ib) 1st 15 N  m (1.5 kgf  m, 11 ft  Ib)
10 × 135 mm
10
LT
572
LT
572
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5-40
EPOWRGENERATOR AND STARTER MOTOR
Flywheel magneto installation
1. Install:
Woodruff key
Flywheel magneto
Washer
Flywheel magneto bolt
NOTE:
Clean the tapered portion of the crankshaft
and the flywheel magneto hub.
When installing the flywheel magneto, make
sure the woodruff key is properly seated in
the keyway of the crankshaft.
Lubricate the flywheel magneto bolt and
washer with engine oil.
2. Tighten:
Flywheel magneto bolt 1

NOTE:
While holding the flywheel magneto 2
with the
sheave holder 3
, tighten the flywheel mag-
neto bolt.
CAUTION:
Do not reuse the flywheel magneto bolt and
washer, always replace them with new
ones.
T R..
Flywheel magneto bolt:
75 N  m (7.5 kgf  m, 54 ft  lb)
Sheave holder:
YS-01880-A/90890-01701
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5-54
EPOWRCYLINDER HEAD
CYLINDER HEAD
EXPLODED DIAGRAM
REMOVAL AND INSTALLATION CHART
Step Procedure/Part name Q’ty Service points
CYLINDER HEAD REMOVAL
Follow the left “Step” for removal.
Engine unit Refer to “ENGINE UNIT”.
Intake assembly Refer to “FUEL INJECTION SYSTEM” in
Chapter 4.
Exhaust pipes 1 and 2 Refer to “EXHAUST PIPES 1 AND 2”.
Oil tank Refer to “OIL TANK”.
Intake and exhaust camshaft Refer to “CAMSHAFTS”.
1Bolt 2
2 Hunger 1
3Bolt 3
EEE
E
2 4
1
855
7
9 3 6
6
LT
271
2nd 121 ± 5˚ 1st 20 N • m (2.0 kgf
• m, 14 ft
• Ib)
2nd 140 ± 5˚ 1st 20 N • m (2.0 kgf
• m, 14 ft
• Ib)
10 N •
m (1.0 kgf • m, 7.2 ft • Ib)
6 × 12 mm
10 N •
m (1.0 kgf • m, 7.2 ft • Ib)
6 × 55 mm
8 × 20 mm
6
2nd 105 ± 5˚ 1st 20 N • m (2.0 kgf
• m, 14 ft
• Ib)
2nd 105 ± 5˚ 1st 20 N • m (2.0 kgf
• m, 14 ft
• Ib)
2nd 105 ± 5˚ 1st 20 N • m (2.0 kgf
• m, 14 ft
• Ib)
2nd 105 ± 5˚ 1st 20 N • m (2.0 kgf
• m, 14 ft
• Ib)
E6
4
66
6
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5-57
EPOWRCYLINDER HEAD
3. Measure:
Cylinder head warpage
Out of specification →
Replace the cyl-
inder head.
Cylinder head warpage limit:
0.1 mm (0.004 in)
Measurement steps:
Place a straightedge 1
and a thickness
gauge 2
across the cylinder head.
Measure the warpage.
If the limit is exceeded, replace the cylin-
der head.
Cylinder head installation
1. Install:
Cylinder head
NOTE:
Pass the timing chain through the timing
chain cavity.
Lubricate the cylinder head nuts with engine
oil.
Tighten the cylinder head nuts in the
sequence shown.
T R..
Cylinder head nut
1:
1st:
20 N  m (2.0 kgf  m, 14 ft  lb)
2nd:
121
± 5°
Cylinder head nut
2:
1st:
20 N  m (2.0 kgf  m, 14 ft  lb)
2nd:
105
± 5°
Cylinder head nut
3:
1st:
20 N  m (2.0 kgf  m, 14 ft  lb)
2nd:
140
± 5°
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5-58
EPOWRCYLINDER HEAD
2. Tighten:
Cylinder head bolts 1

NOTE:
Lubricate the cylinder head bolts with engine
oil.
T R..
Cylinder head bolt:
10 N  m (1.0 kgf  m, 7.2 ft  lb)
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