2005 YAMAHA VX110 ESP

2-23
ESPECCABLE AND HOSE ROUTING
13
90A
C B
88
4567
2
E
D
F
È
É
Í
Ê
Ë
Ì A-A
AA
Î
1Oil separator breather hose (to air intake duct)
2Wiring harness
3Ignition coil lead #1
4Ignition coil lead #2
5Ignition coil lead #3
6Ignition coil lead #4
7Cam position sensor
8Ignition coil
9ECM
0Rectifier/regulator
AOil pressure switch couplerBThermoswitch (exhaust) coupler
CGround lead plate
DWiring harness
EThermoswitch (exhaust) lead
FOil pressure switch lead
ÈFasten the oil separator breather hose (to air
intake duct) at the paint mark with a holder.
É15–25 mm (0.59–0.98 in)
ÊTo fuse box
ËTo multifunction meter
ProCarManuals.com

2-24
ESPECCABLE AND HOSE ROUTING
13
90A
C B
88
4567
2
E
D
F
È
É
Í
Ê
Ë
Ì A-A
AA
Î
ÌTo generator
ÍFasten the thermoswitch (exhaust) lead at the
protective sleeve, the oil pressure switch lead at
the corrugated tube, and the wiring harness at
the tape on the harness with a plastic tie.
Î60–80 mm (2.36–3.15 in)
ProCarManuals.com

2-25
ESPECCABLE AND HOSE ROUTING
D-D
A-A
B-B
0
8
5
C-C
9
5 Ú
Ù
É
È
Ð
DD
5
6
A
A
1
2
7
34
Î
Ó ÒÌÑÑÌÑ
Ì
Ì
Ë Ë
Ê
Ø×Ö Ô
Õ
Í
Ï
C
CB
B
1Ignition coil
2Fuel rail
3Fuel injector coupler
4Throttle body assembly coupler
5Wiring harness
6Engine temperature sensor lead
7Sensor assembly (intake air pressure and intake
air temperature)
8Cam position sensor coupler
9Cam position sensor lead
0Oil pressure switchÈTo engine temperature sensor
ÉTo thermoswitch (engine)
ÊRoute the engine thermoswitch lead and engine
temperature sensor lead through the corrugated
tube.
ËMore than 10 mm (0.39 in)
ÌDo not leave any slack in the lead.
ÍAttach the thermoswitch (engine) coupler to the
bracket.
ÎAttach a joint connector to the bracket.
ÏPass the fuel injector leads under the fuel rail.
ProCarManuals.com

2-26
ESPECCABLE AND HOSE ROUTING
D-D
A-A
B-B
0
8
5
C-C
9
5 Ú
Ù
É
È
Ð
DD
5
6
A
A
1
2
7
34
Î
Ó ÒÌÑÑÌÑ
Ì
Ì
Ë Ë
Ê
Ø×Ö Ô
Õ
Í
Ï
C
CB
B
ÐInsert the plastic tie completely into the hole in
the engine hanger.
ÑFasten the wiring harness to a bracket on the
fuel rail with a plastic tie.
ÒFasten the wiring harness and cam position
sensor within the range shown in the illustration
with a plastic tie.
ÓSplit in wiring harness
ÔTo cam position sensorÕPass fuel injector lead #4 under the sensor
assembly (intake air pressure and intake air
temperature) lead.
ÖTo oil pressure switch
×To thermoswitch (exhaust)
ØTo ground lead plate
ÙBow end
ÚMake sure that the rubber boot is fitted properly
without any folds.
ProCarManuals.com

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.
ProCarManuals.com

5-89
EPOWRCONNECTING RODS AND PISTONS
For example, if the connecting rod “P1” and the
crankshaft web “P
1” numbers are “5” and “1”
respectively, then the bearing size for “P
1” is:
Bearing size of P
1:
“P
1” (connecting rod) –
“P
1” (crankshaft web)
5 – 1 = 4 (green)
BEARING COLOR CODE
1brown
2 black
3blue
4 green5 G
P4P3P2P1
Connecting rod and piston installation
The following procedure applies to all of the
pistons and connecting rods.
1. Install:
Oil ring
2nd ring
Top ring
NOTE:
Be sure to install the piston rings so that the
manufacturer’s marks or numbers face up.
2. Install:
Piston 1

Connecting rod 2

Piston pin 3

Piston pin clips 4

NOTE:
Apply engine oil onto the piston pin.
When installing the connecting rod to the pis-
ton, make sure that the “Y” mark a
on the
connecting rod faces towards the left when
the exhaust valve recesses b
on the piston
face upward. Refer to the illustration.
Reinstall each piston into its original cylinder
(numbering order starting from the front: #1
to #4).
ProCarManuals.com

5-96
EPOWRCRANKSHAFT
Tighten the bolts to specification in the
order of the numbers on the crankcase.
Refer to “Crankcase assembly”—
“CRANKCASE”.
Remove the lower crankcase and the
crankshaft journal lower bearings.
Measure the compressed Plastigauge
width c
on each crankshaft journal.
If the crankshaft journal oil clearance is
out of specification, select replacement
crankshaft journal bearings.
c
4. Select:
Crankshaft journal bearings (J
1–J5)
NOTE:
The numbers stamped into the crankshaft
web and the numbers stamped into the lower
crankcase are used to determine the
replacement crankshaft journal bearing
sizes.
“J
1–J5” refer to the bearings shown in the
crankshaft illustration.
If “J
1–J5” are the same, use the same size
for all of the bearings.
For example, if the crankcase “J
1” and crank-
shaft web “J
1” numbers are “8” and “2” respec-
tively, then the bearing size for “J
1” is:
Bearing size of J
1:
“J
1” (crankcase) – “J1” (crankshaft web)
– 1
8 – 2 – 1 = 5 (Red/black)
BEARING COLOR CODE
3 Red/red
4Red/brown
5 Red/black
6 Red/blue
7Red/green
J5J4J3J2J1
J1J2J3J4J5
J5J4J3J2J1
ProCarManuals.com

7-9
E
–+ELECELECTRICAL ANALYSIS
ELECTRICAL ANALYSIS
INSPECTION
CAUTION:
All measuring instruments should be han-
dled with special care. Damaged or mis-
handled instruments will not measure
properly.
On an instrument powered by dry batter-
ies, check the battery’s voltage periodi-
cally and replace the batteries if
necessary.
Digital tester
NOTE:
Throughout this chapter the part numbers of
the specified digital testers have been omitted.
Refer to the following part numbers.
NOTE:
“” indicates a continuity of electricity;
i.e., a closed circuit at the respective switch
position.
Digital multimeter:
YU-34899-A
Digital circuit tester:
90890-03174
ProCarManuals.com