2005 YAMAHA VX110 check oil

4-14
EFUEL
THROTTLE BODY ASSEMBLY AND INTAKE
MANIFOLD
Fuel hose installation (replacing with new
fuel hose)
1. Install:
Fuel hose 1

NOTE:
To install the fuel hose, be sure to align the
white mark a
of the fuel hose with the
checker tab 2
of the quick connector.
When replacing the fuel hose with a new
one, a checker tab 2
that has half engage-
ment prevention is attached to the quick con-
nector of the hose. If the quick connector is
completely installed to the fuel pipe, it is
removable.
2
1a
2
Fuel hose connection
1. Apply a thin coat of engine oil to the con-
tact surfaces of the fuel pipe.
2. Insert the quick connector into the fuel
pipe until you hear a “click.”
3. To check the connection of the quick con-
nector, push and pull on the quick connec-
tor several times until there is free play of
2–3 mm (0.08–0.12 in).
NOTE:
If free is not obtained, disconnect the fuel hose
and check the O-ring for damage and that it is
properly installed.
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5-5
EPOWRENGINE UNIT
5. Measure:
Compression pressure
Out of specification →
Refer to steps (b)
and (c).
6. Install:
Spark plug
Minimum compression pressure
(reference data):
1,150 kPa
(11.5 kgf/cm
2, 164 psi)
Measurement steps:
a. With the throttle wide open, crank the
engine until the reading on the compres-
sion gauge stabilizes.
NOTE:
The difference in compression pressure
between cylinders should not exceed 100
kPa (1 kgf/cm2, 14 psi).
b. If the compression pressure is extremely
high, check the cylinder head, valve sur-
faces and piston crown for carbon depos-
its.
Carbon deposits →
Eliminate.
c. If the compression pressure is below the
minimum specification, squirt a few drops
of oil into the cylinder and measure
again.
Refer to the following table.
Compression pressure
(with oil applied into the cylinder)
Reading Diagnosis
Higher than
without oilPiston ring wear,
piston wear or
damage
→ Repair.
Same as without
oilValves, cylinder
head gasket or pis-
ton possibly defec-
tive
→ Repair.
T R..
Spark plug:
13 N  m (1.3 kgf  m, 9.4 ft  lb)
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5-18
EPOWROIL TANK
4. Remove:
Oil cooler covers
Gaskets
NOTE:
Loosen the oil cooler cover bolts in the
sequence shown.8
19
12
7
6
5
11 10 3
4 2
Oil strainer inspection
1. Check:
Oil strainer 1

Damage →
Replace.
Contaminants →
Clean.
Oil tank installation
1. Install:
Gaskets
Oil cooler covers
NOTE:
Tighten the oil cooler bolts in the sequence
shown.
T R..
Oil cooler cover bolt:
1st:
3.7 N  m
(0.37 kgf  m, 2.7 ft  lb)
2nd:
7.6 N  m
(0.76 kgf  m, 5.5 ft  lb)
LOCTITE 572
5
124
1
6
7
8
2
3 10
9 11
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5-23
EPOWROIL PUMP
SERVICE POINTS
Oil strainer inspection
1. Check:
Oil strainer 1

Damage →
Replace.
Contaminants →
Clean.1
Oil pump installation
1. Install:
Oil pump assembly
NOTE:
Align the projection a on the oil pump shaft
with the slit b on the oil pump driven gear
shaft.
T R..
Oil pump assembly bolt:
M6:
10 N  m (1.0 kgf  m, 7.2 ft  lb)
LOCTITE 572
M8:
1st:
15 N  m
(1.5 kgf  m, 11 ft  lb)
2nd:
28 N  m
(2.8 kgf  m, 20 ft  lb)
LOCTITE 572
ab
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5-29
EPOWRREDUCTION DRIVE GEAR
2. Remove:
Circlip
Reduction drive gear bearing
ÈFor USA and Canada
ÉFor worldwide
Slide hammer and adapters:
YB-06096
Stopper guide plate:
90890-06501
Bearing puller assembly:
90890-06535
Stopper guide stand:
90890-06538
È
É
Oil pump drive shaft inspection
1. Check:
Oil pump drive shaft 1

Cracks/damage/wear →
Replace.
1
Drive shaft inspection
1. Check:
Drive shaft 1

Cracks/damage/wear →
Replace.
1
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5-76
EPOWRCRANKCASE
4. Remove:
Dowel pins
Crankcase inspection
1. Thoroughly wash the crankcase halves in
a mild solvent.
2. Thoroughly clean all the gasket surfaces
and crankcase mating surfaces.
3. Check:
Crankcase
Cracks/damage →
Replace.
Oil delivery passages
Obstruction →
Blow out with com-
pressed air.
Timing chain inspection
1. Check:
Timing chain 1

Damage/stiffness →
Replace the timing
chain and camshaft sprockets as a set.
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5-94
EPOWRCRANKSHAFT
SERVICE POINTS
Crankshaft removal
1. Remove:
Crankshaft 1

Crankshaft journal lower bearings
(from the lower crankcase)
Crankshaft journal upper bearings
(from the upper crankcase)
NOTE:
Identify the position of each crankshaft journal
bearing so that it can be reinstalled in its origi-
nal place.
1
Crankshaft inspection
1. Measure:
Crankshaft runout
Out of specification →
Replace the
crankshaft.
Maximum crankshaft runout:
0.03 mm (0.0012 in)
2. Check:
Crankshaft journal surfaces
Crankshaft pin surfaces
Scratches/wear →
Replace the crank-
shaft.
Bearing surfaces
Scratches/wear →
Replace the crank-
shaft journal bearing.
3. Measure:
Crankshaft journal oil clearance
Out of specification →
Replace the
crankshaft journal bearings.
Crankshaft journal oil clearance:
0.004–0.028 mm
(0.0002–0.0011 in)
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E
–+ELEC
INDICATION SYSTEM .................................................................................. 7-48
WIRING DIAGRAM ................................................................................. 7-48
FUSE ....................................................................................................... 7-50
BATTERY ................................................................................................ 7-50
MAIN AND FUEL PUMP RELAY............................................................. 7-50
ECM......................................................................................................... 7-50
ENGINE TEMPERATURE SENSOR ...................................................... 7-50
THERMOSWITCH (ENGINE).................................................................. 7-50
THERMOSWITCH (EXHAUST) .............................................................. 7-50
REMOTE CONTROL UNIT (DELUXE MODEL ONLY) ........................... 7-50
BUZZER .................................................................................................. 7-50
OIL PRESSURE SWITCH ....................................................................... 7-51
MULTIFUNCTION METER...................................................................... 7-51
Multifunction meter ............................................................................ 7-51
MULTIFUNCTION METER REMOVAL ................................................... 7-51
Display function (Sport model only) .................................................. 7-52
Display function (Deluxe model only) ................................................ 7-53
Speedometer display ........................................................................ 7-54
Tachometer display ........................................................................... 7-55
Hour meter display ............................................................................ 7-55
Voltage meter display........................................................................ 7-55
Low oil pressure warning indicator .................................................... 7-55
Fuel level meter display and fuel warning indicator .......................... 7-55
Overheat warning indicator ............................................................... 7-56
Check engine warning indicator ........................................................ 7-56
Diagnostic display ............................................................................. 7-57
REMOTE CONTROL SYSTEM (DELUXE MODEL ONLY) .......................... 7-58
WIRING DIAGRAM ................................................................................. 7-58
REMOTE CONTROL SYSTEM ............................................................... 7-59
Yamaha Security System indicator ................................................... 7-59
Low-rpm mode indicator.................................................................... 7-59
Checking the remote control transmitter ........................................... 7-60
Transmitter registration ..................................................................... 7-62
Replacing of the transmitter battery .................................................. 7-63
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