2005 YAMAHA VX110 oil temperature

2-12
ESPECTIGHTENING TORQUES
Washer/pickup coil lead and
lighting coil leadBolt M5 1 4.9 0.49 3.5242LT5-36
Pickup coil Bolt M5 2 4.9 0.49 3.5
242LT5-36
Holder (wiring harness) Bolt M6 2 14 1.4 10
242LT5-36
Lighting coil Bolt M6 3 14 1.4 10
242LT5-36
Spark plug——4131.39.4 5-41
Ignition coil Bolt M6 4 7.6 0.76 5.5
572LT5-41
Cam position sensor Bolt M6 1 10 1.0 7.2
572LT5-41
Cooling water pipe1st
Bolt M6 13.70.372.7
5-41
2nd 7.6 0.76 5.5
Cylinder head cover Bolt M6 6 12 1.2 8.7
E5-41
Timing chain tensioner cap bolt Bolt M6 1 10 1.0 7.2 5-43
Timing chain tensioner Bolt M6 2 10 1.0 7.2 5-43
Exhaust camshaft cap Bolt M6 10 10 1.0 7.2
E5-43
Intake camshaft cap Bolt M6 18 10 1.0 7.2
E5-43
Exhaust camshaft sprocket Bolt M7 2 24 2.4 17
E5-43
Intake camshaft sprocket Bolt M7 2 24 2.4 17
E5-43
Cylinder head
*1 Bolt M6 3 10 1.0 7.2
E5-54
1st
Nut—220 2.0 14
E5-54
2nd 140 ±
5°
1st
Nut—320 2.0 14
E5-54
2nd 121 ±
5°
1st
Nut—520 2.0 14
E5-54
2nd 105 ±
5°
Engine temperature sensor——1 15 1.5 11 5-71
Thermoswitch (engine) Bolt M6 2 7.6 0.76 5.5
572LT5-71
Oil pressure switch——1 8.4 0.84 6.1
572LT5-71
Anode cover BoltM6
112 1.2 8.7
271LT5-71
M8 20 2.0 14
Oil pan Bolt M6 15 12 1.2 8.7
572LT5-71
Lower crankcaseBolt M6 10 12 1.2 8.7
572LT5-71
1st
Bolt M9 107.80.785.6
E5-71 2nd Loosen completely
3rd 15 1.5 11
4th 49 ±
5°
Oil pipe Bolt M6 1 12 1.2 8.7
E5-74
Oil filter bolt——1353.525
E5-74
Connecting rod cap1st
Nut—820 2.0 14
M5-80
2nd 120 ±
5°
*1: For details, refer to the tightening procedures in this manual.Part to tightenedPart
nameThread
sizeQ’tyTightening torque
RemarksRefer to
page
Nmkgfmftlb
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

3-8
E
INSP
ADJ
FUEL SYSTEM/POWER UNIT
Water separator inspection
1. Inspect:
Water separator 1

Water accumulation →
Drain.
NOTE:
To drain the water, remove the drain plug.
POWER UNIT
Valve clearance adjustment
The following procedure applies to all of the
valves.
NOTE:
Valve clearance adjustment should be made
on a cold engine, at room temperature.
When the valve clearance is to be measured
or adjusted, the piston must be at top dead
center (TDC) of the compression stroke.
1. Remove:
Ignition coils
Spark plugs
Cylinder head cover
Cylinder head cover gasket
Refer to “CAMSHAFTS” in Chapter 5.
2. Install:
Dial gauge needle
Dial gauge stand 1

(into spark plug hole #1)
Dial gauge 2

Dial gauge stand:
90890-06583
Dial gauge needle:
90890-06584
Dial gauge stand set:
YB-06585/90890-06585
Dial indicator gauge:
YU-03097
Dial gauge set:
90890-012522
1
ProCarManuals.com

3-15
E
INSP
ADJ
POWER UNIT
Place the watercraft in a horizontal posi-
tion or launch the watercraft.
Remove the seat.
Remove the oil tank filler cap 1
and
check for oil on the dipstick 2
.
If there is no oil on the dipstick, pour
enough oil so that the tip of the dipstick
comes into contact with the oil, and then
install the filler cap.
Start the engine.
CAUTION:
When starting the engine make sure the
dipstick is securely fitted into the oil
tank.
NOTE:
The engine cannot be started if the
Yamaha Security System is in the lock
mode. (Deluxe model only)
For information on the Yamaha Security
System, see the owner’s manual. (Deluxe
model only)
Run the engine at trolling speed for 6
minutes or more, and then turn the
engine off.
CAUTION:
When checking the oil level on land, be
sure to connect a garden hose to the
watercraft for proper water supply.
NOTE:
If the ambient temperature is 20°C (68°F)
or less, warm up the engine for an addi-
tional 5 minutes.
Remove the oil tank filler cap 1
, wipe the
dipstick 2
clean, and then screw the filler
cap into the filler hole completely.
ProCarManuals.com

3-16
E
INSP
ADJ
POWER UNIT
Remove the oil tank filler cap again and
check that the oil level is between the
minimum level mark a
and maximum
level mark b
on the dipstick.
If the engine oil is below the minimum
level mark b
, add sufficient oil of the rec-
ommended type to raise it to the correct
level.
If the engine oil is above the maximum
level mark a
, extract sufficient oil using
an oil changer to lower it to the correct
level.
NOTE:
If the oil temperature is low, the reading on
the dipstick will be low, and if the tempera-
ture is high, the reading on the dipstick will
be high.
Engine oil change — using oil changer
WARNING
Avoid changing the engine oil immediately
after turning the engine off. The oil is hot
and should be handled with care to avoid
burns.
CAUTION:
Do not run the engine with too much or
not enough oil in the oil tank. Oil could
spray out or the engine could be dam-
aged.
Do not run the engine for more than 15
seconds without supplying water, when
checking the oil level on land.
The engine could overheat.
Be sure to change the engine oil after the
first 10 hours of operation, and every 100
hours thereafter or at the start of a new
season, otherwise the engine will wear
quickly.
1. Warm the engine up, and then put the
watercraft in a horizontal position.
ProCarManuals.com

5-72
EPOWRCRANKCASE
EXPLODED DIAGRAM
Step Procedure/Part name Q’ty Service points
Reduction drive gear case Refer to “REDUCTION DRIVE GEAR”.
Cylinder head Refer to “CAMSHAFTS”.
1 Timing chain 1
2 Engine temperature sensor 1
3 Washer 1
4Bolt 2
5 Thermoswitch (engine) 1
6 Oil pressure switch 1
7Bolt 1
8Bolt 1
9 Anode cover 1
10 Grommet 1
6
21 20
20 11
10 9
87
23
4
5
16
151718
13 14
1219
1
LT
271
LT
LT
572
LT
LT
572
LT
LT
572
LT
LT
572
LT
LT
572
LT
E
E
AA
12 N •
m (1.2 kgf • m, 8.7 ft • Ib)
6 × 70 mm
12 N •
m (1.2 kgf • m, 8.7 ft • Ib)
6 × 20 mm
20 N •
m (2.0 kgf • m, 14 ft • Ib)
8 × 40 mm
2nd *
3rd 15 N • m (1.5 kgf
• m, 11 ft
• Ib) 1st 7.8 N • m (0.78 kgf
• m, 5.6 ft
• Ib)
9 × 105 mm
4th 49 ± 5˚
8.4 N •
m (0.84 kgf • m, 6.1 ft • Ib)
12 N •
m (1.2 kgf • m, 8.7 ft • Ib)
6 × 55 mm
12 N •
m (1.2 kgf • m, 8.7 ft • Ib)
6 × 55 mm
7.6 N •
m (0.76 kgf • m, 5.5 ft • Ib)
6 × 16 mm
15 N •
m (1.5 kgf • m, 11 ft • Ib)
12 N •
m (1.2 kgf • m, 8.7 ft • Ib)
6 × 20 mm
18
AA
1280B
ProCarManuals.com

E
–+ELEC
1
2
3
4
5
6
7
8
9
CHAPTER 7
ELECTRICAL SYSTEM
ELECTRICAL COMPONENTS........................................................................ 7-1
FUSE BOX ....................................................................................................... 7-2
EXPLODED DIAGRAM ............................................................................. 7-2
REMOVAL AND INSTALLATION CHART ................................................ 7-2
ECM AND RECTIFIER/REGULATOR............................................................. 7-7
EXPLODED DIAGRAM ............................................................................. 7-7
REMOVAL AND INSTALLATION CHART ................................................ 7-7
ELECTRICAL ANALYSIS ............................................................................... 7-9
INSPECTION............................................................................................. 7-9
Digital tester ........................................................................................ 7-9
Low resistance measurement ........................................................... 7-10
Peak voltage measurement .............................................................. 7-10
Peak voltage adapter ........................................................................ 7-11
Test harness .................................................................................... 7-11
IGNITION SYSTEM ....................................................................................... 7-12
WIRING DIAGRAM ................................................................................. 7-12
IGNITION SPARK ................................................................................... 7-14
IGNITION SYSTEM PEAK VOLTAGE .................................................... 7-15
BATTERY ................................................................................................ 7-17
FUSE ....................................................................................................... 7-17
SPARK PLUGS ....................................................................................... 7-17
IGNITION COIL ....................................................................................... 7-18
ENGINE STOP SWITCH ......................................................................... 7-18
ENGINE TEMPERATURE SENSOR ...................................................... 7-19
SENSOR ASSEMBLY ............................................................................. 7-19
THERMOSWITCH (ENGINE).................................................................. 7-20
THERMOSWITCH (EXHAUST) .............................................................. 7-21
MAIN AND FUEL PUMP RELAY............................................................. 7-22
ELECTRONIC CONTROL THROTTLE VALVE RELAY ......................... 7-23
THROTTLE POSITION SENSOR ........................................................... 7-24
ACCELERATOR POSITION SENSOR ................................................... 7-26
CAM POSITION SENSOR ...................................................................... 7-29
SLANT DETECTION SWITCH ................................................................ 7-30
ProCarManuals.com