warning YAMAHA VX110 2005 User Guide

4-16
EFUEL
THROTTLE BODY ASSEMBLY AND INTAKE
MANIFOLD
Intake assembly installation
1. Install:
Intake screw clamp
Intake manifold joint
Intake assembly
NOTE:
Install the intake screw clamp in the direction
shown in the illustration, making sure to align
the indentation in the clamp with the projec-
tion a
on the intake manifold joint.
Tighten the clamp screw until both ends of
the intake screw clamp contact the spacer 1
around the screw.
a
11
2. Install:
Fuel hose 2 (fuel rail side)
Fuel hose clamps
WARNING
Do not reuse the fuel hose clamps, always
replace them with new ones.
NOTE:
Install the fuel hose with the white mark a
facing up.
Install the fuel hose clamps at the locations
shown in the illustration, and then crimp
them to securely fasten them.
2a
8 mm (0.31 in) 6 mm (0.24 in)
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5-51
EPOWRCAMSHAFTS
Install the exhaust and intake camshaft
caps.
NOTE:
Gradually tighten the intake and exhaust
camshaft cap bolts in 2–3 steps in the
sequence shown.
T R..
Camshaft cap bolt:
10 N  m (1.0 kgf  m, 7.2 ft  lb)
NOTE:
Make sure that the punch marks c
on the
camshafts are aligned with the arrow marks
d
on the camshaft caps.
Out of alignment →
Reinstall.
Remove the wire from the timing chain.
10 1 4 5 8
17 5 1 4 8 15 9 12 149 3 2
7 6
18 7 3 2 6
13 11 10 16
3. Install:
Timing chain tensioner
Installation steps:
While lightly pressing the timing chain
tensioner rod by hand, turn the tensioner
rod fully clockwise with a thin screwdriver
1
.
NOTE:
Make sure that the tensioner rod has been
fully set clockwise.
With the timing chain tensioner rod
turned all the way into the timing chain
tensioner housing (with the thin screw-
driver still installed), install the gasket and
the timing chain tensioner 2
onto the cyl-
inder block.
WARNING
Always use a new gasket.
Tighten the timing chain tensioner bolts
3
to the specified torque.
NOTE:
The “UP” mark on the timing chain ten-
sioner should face up.
33
2
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5-78
EPOWRCRANKCASE
5. Tighten:
Crankcase bolts 1
–0

NOTE:
Do not reuse crankcase bolts 1
–0
.
The tightening procedure of crankcase bolts
1
–0
is angle controlled, therefore tighten
the bolts using the following procedure.
Tightening steps:
Tighten the bolts in the order of the num-
bers on the crankcase.
T R..
Crankcase bolt
1–
0:
1st:
7.8 N  m
(0.78 kgf  m, 5.6 ft  lb)
Loosen and retighten the crankcase bolts
in the proper tightening sequence as
shown.
T R..
Crankcase bolt
1–
0:
2nd:
Loosen completely
3rd:
15 N  m (1.5 kgf  m, 11 ft  lb)
Tighten the crankcase bolts further to
reach the specified angle 49° in the
proper tightening sequence as shown.
T R..
Crankcase bolt
1–
0:
Final:
Specified angle 49
± 5°
WARNING
When the bolts are tightened more than
the specified angle, do not loosen the
bolt and then retighten it.
Replace the bolt with a new one and per-
form the procedure again.
15397
ICAEG
86240
HFBDJ
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5-92
EPOWRCONNECTING RODS AND PISTONS
9. Tighten:
Connecting rod nuts
WARNING
Replace the connecting rod bolts and
nuts with new ones.
Clean the connecting rod bolts and nuts.
NOTE:
The tightening procedure of the connecting rod
nuts is angle controlled, therefore tighten the
nuts using the following procedure.
Tightening steps:
Tighten the connecting rod nuts to the
specified torque.
T R..
Connecting rod nut:
1st:
20 N  m (2.0 kgf  m, 14 ft  lb)
Tighten the connecting rod nuts further to
reach the specified angle 120°.
T R..
Connecting rod nut:
Final:
Specified angle 120
± 5°
WARNING
When the nuts are tightened more than
the specified angle, do not loosen the
nut and then retighten it.
Replace the bolt and nut with a new one
and perform the procedure again.
CAUTION:
Do not use a torque wrench to tighten
the nut to the specified angle.
Tighten the nut until it is at the speci-
fied angle.
NOTE:
When using a hexagonal nut, note that the
angle from one corner to another is 60°.
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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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7-14
E
–+ELECIGNITION SYSTEM
IGNITION SPARK
WARNING
When checking the spark gap, do not
touch any of the connections of the spark
checker/ignition tester lead wires.
When performing the spark gap test, take
special care not to let sparks leak out of
the removed spark plug cap.
When performing the spark gap check,
keep flammable gas or liquids away,
since this test can produce sparks.
1. Check:
Ignition spark
Weak →
Check the ECM output peak
voltage.
Check the ignition coil for resistance.
Checking steps:
Connect the spark plug cap to the special
service tool.
Spark checker:
YM-34487
Ignition tester:
90890-06754
Crank the engine and observe the igni-
tion system spark through the discharge
window.
OK
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7-15
E
–+ELECIGNITION SYSTEM
IGNITION SYSTEM PEAK VOLTAGE
WARNING
When checking the electrical components,
do not touch any of the connections of the
digital tester lead wires.
NOTE:
If there is no spark, or the spark is weak,
continue with the ignition system test.
If a good spark is obtained, the problem is
not with the ignition system, but possibly with
the spark plug(s) or another component.
1. Measure:
ECM output peak voltage
Below specification →
Measure the
pickup coil output peak voltage.
NOTE:
When measuring the ECM output peak volt-
age while cranking the engine, disconnect
the ignition coil couplers for all cylinders
except for the cylinder being measured.
To crank the engine, connect the engine
shut-off cord (lanyard) to the engine shut-off
switch, and then press the start switch.
Test harness (2 pins):
New: YB-06867
Current: YB-06767
Test harness FWY-2 (2 pins):
New: 90890-06867
Current: 90890-06767
ECM output peak voltage:
Black/red (B/R) –
Red/yellow (R/Y)
Black/white (B/W) –
Red/yellow (R/Y)
Black/yellow (B/Y) –
Red/yellow (R/Y)
Black/green (B/G) –
Red/yellow (R/Y)
r/minLoaded
Cranking 2,000 3,500
V 90 130 140
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7-55
E
–+ELECINDICATION SYSTEM
Tachometer display
1. Check:
Tachometer display
Does not display → Check the engine
speed using the “Engine monitor” of the
Yamaha Diagnostic System.
Replace the multifunction meter.
Hour meter display
1. Check:
Hour meter display
Does not display → Replace the multi-
function meter.
Voltage meter display
1. Check:
Voltage meter display
Does not display → Check the battery
voltage using the “Engine monitor” of
the Yamaha Diagnostic System.
Replace the multifunction meter.
Low oil pressure warning indicator
1. Check:
Low oil pressure warning indicator
Does not come on → Check the oil pres-
sure switch using the “Engine monitor”
of the Yamaha Diagnostic System.
Replace the multifunction meter.
Fuel level meter display and fuel warning
indicator
1. Check:
Fuel level meter display and fuel warn-
ing indicator
Do not display → Measure the fuel
sender resistance.
If the fuel sender resistance is within
specification, replace the multifunction
meter.
2. Measure:
Fuel sender resistance
Refer to “FUEL CONTROL SYSTEM”.
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7-56
E
–+ELECINDICATION SYSTEM
Overheat warning indicator
1. Check:
Overheat warning indicator
Does not come on → Replace the multi-
function meter.
Checking steps:
Start the engine.
Disconnect the thermoswitch (engine)
connector 1 (blue), engine temperature
sensor connector 2 (black), or ther-
moswitch (exhaust) 3 connector.
Connect the jumper lead to the female
terminal of the disconnected connector.
Check that the multifunction meter over-
heat warning indicator blinks, then comes
on. The buzzer also begins to sound
intermittently, then sounds continuously.
3
12
Check engine warning indicator
1. Check:
Check engine warning indicator
Does not come on → Replace the multi-
function meter.
Checking steps:
Start the engine.
Disconnect the coupler of a sensor (e.g.,
engine temperature sensor) that normally
activates the check engine warning indi-
cator when a malfunction occurs.
Check that the warning light and check
engine warning indicator begin to blink
and the buzzer sounds intermittently.
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7-57
E
–+ELEC
Diagnostic display
1. Check:
Diagnostic display
Does not display → Replace the multi-
function meter.
Checking steps:
Start the engine.
Disconnect the coupler of a sensor (e.g,.
engine temperature sensor) that is nor-
mally displayed when a malfunction
occurs. Refer to “SELF-DIAGNOSIS” in
Chapter 9.
Check that the check engine warning
indicator comes on and that the buzzer
sounds.
Press the select switch 1 for 8 seconds
and check the error code indicated on the
multifunction meter.
1
INDICATION SYSTEM
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