2005 YAMAHA VX110 Service Manual

2-4
ESPECMAINTENANCE SPECIFICATIONS
Valve face width B
Intake mm (in) 1.91–2.64 (0.0752–0.1039)
Exhaust mm (in) 1.91–2.64 (0.0752–0.1039)
Valve seat width C
Intake mm (in) 0.90–1.10 (0.0354–0.0433)
Exhaust mm (in) 0.90–1.10 (0.0354–0.0433)
Valve margin thickness D
Intake mm (in) 0.85–1.15 (0.0335–0.0453)
Exhaust mm (in) 0.85–1.15 (0.0335–0.0453)
Valve stem diameter
Intake mm (in) 3.975–3.990 (0.1565–0.1571)
Exhaust mm (in) 4.465–4.480 (0.1758–0.1764)
Valve guide inside diameter
Intake mm (in) 4.000–4.012 (0.1575–0.1580)
Exhaust mm (in) 4.500–4.512 (0.1772–0.1776)
Valve-stem-to-valve-guide
clearance
Intake mm (in) 0.010–0.037 (0.0004–0.0015)
Exhaust mm (in) 0.020–0.047 (0.0008–0.0019)
Valve stem runout mm (in) 0.01 (0.0004)
Valve spring
Free length
Intake mm (in) 38.90 (1.53)
Exhaust mm (in) 40.67 (1.60)
Installed length
Intake mm (in) 34.50 (1.36)
Exhaust mm (in) 35.00 (1.38)
Tilt limit
Intake Degree/mm (in) 2.5/1.7 (0.067)
Exhaust Degree/mm (in) 2.5/1.8 (0.071)
Piston
Piston-to-cylinder clearance mm (in) 0.10–0.11 (0.0039–0.0043)
Piston diameter mm (in) 75.895–75.910 (2.9880–2.9886)
Measuring point H* mm (in) 5 (0.2)
Wear limit mm (in) 0.170 (0.0067)
Piston pin boss inside diameter mm (in) 17.002–17.013 (0.6694–0.6698) Item UnitModel
VX110 Sport VX110 Deluxe
ProCarManuals.com

2-5
ESPECMAINTENANCE SPECIFICATIONS
Piston pins
Outside diameter mm (in) 16.991–17.000 (0.6689–0.6693)
Wear limit mm (in) 16.986 (0.6687)
Piston ring
Top ring
Type Barrel
Dimension (B ×
T) mm (in) 0.90 ×
2.75 (0.04 ×
0.11)
End gap (installed) mm (in) 0.32–0.44 (0.0126–0.0173)
Ring groove clearance mm (in) 0.030–0.065 (0.0012–0.0026)
2nd ring
Type Taper
Dimensions (B ×
T) mm (in) 0.80 ×
2.80 (0.03 ×
0.11)
End gap (installed) mm (in) 0.43–0.58 (0.0169–0.0228)
Ring groove clearance mm (in) 0.020–0.055 (0.0008–0.0022)
Oil ring
Dimensions
(B ×
T)mm (in) 1.50 ×
2.60 (0.06 ×
0.10)
End gap (installed) mm (in) 0.10–0.35 (0.0039–0.0138)
Ring groove clearance mm (in) 0.040–0.160 (0.0016–0.0063)
Connecting rod
Big end oil clearance mm (in) 0.016–0.040 (0.0006–0.0016)
Bearing color code 1. Brown 2. Black 3. Blue 4. Green
Small end inside diameter mm (in) 17.005–17.018 (0.6695–0.6700)
Crankshaft
Crank width A mm (in) 304.8–306.0 (12.00–12.05)
Deflection limit B mm (in) 0.03 (0.0012)
Crankshaft journal oil clearance mm (in) 0.004–0.028 (0.0002–0.0011)
Bearing color code 3. Red/Red 4. Red/Brown 5. Red/Black
6. Red/Blue 7. Red/Green
Throttle body
Type/quantity IM-230/1
Manufacturer Mikuni
ID mark 6D300
Trolling speed r/min 1,550–1,750 Item UnitModel
VX110 Sport VX110 Deluxe
T
B
B
T
B
T
BBB
A
ProCarManuals.com

2-6
ESPECMAINTENANCE SPECIFICATIONS
JET PUMP UNIT
HULL AND HOOD
Fuel pump
Pump type Electrical
Fuel pressure kPa
(kgf/cm
2, psi)320–327 (3.2–3.3, 46–47)
Oil filter
Oil filter type Cartridge type
Oil pump
Oil pump type Trochoid
Rotor tip clearance
(scavenge pump)mm (in) 0.09–0.15 (0.0035–0.0059)
Oil pump housing clearance
Rotor (feed pump) mm (in) 0.09–0.17 (0.0035–0.0067)
Rotor (scavenge pump) mm (in) 0.09–0.15 (0.0035–0.0059)
Item UnitModel
VX110 Sport VX110 Deluxe
Jet pump
Impeller material Stainless steel
Number of impeller blades 3
Impeller pitch angle Degree 21.2
Impeller clearance mm (in) 0.35–0.45 (0.0138–0.0177)
Impeller clearance limit mm (in) 0.6 (0.0236)
Drive shaft runout limit mm (in) 0.3 (0.0118)
Item UnitModel
VX110 Sport VX110 Deluxe
Free play
Throttle lever free play mm (in) 4–7 (0.16–0.28) Item UnitModel
VX110 Sport VX110 Deluxe
ProCarManuals.com

2-7
ESPECMAINTENANCE SPECIFICATIONS
ELECTRICAL
Item UnitModel
VX110 Sport VX110 Deluxe
Battery
Type Fluid
Capacity V/Ah 12/19
Specific gravity 1.28
ECM unit
(B/R – R/Y, B/W – R/Y,
B/Y – R/Y, B/G – R/Y)
Output peak voltage lower limit
@cranking (loaded) V 90
@2,000 r/min (loaded) V 130
@3,500 r/min (loaded) V 140
Stator
Pickup coil (W/B – B/O)
Output peak voltage
@cranking (unloaded) V 8.0
@cranking (loaded) V 6.9
@2,000 r/min (loaded) V 19.4
@3,500 r/min (loaded) V 25.1
Lighting coil (G – G)
Output peak voltage
@cranking (unloaded) V 7.8
@2,000 r/min (unloaded) V 24.5
@3,500 r/min (unloaded) V 41.6
Pickup coil resistance
(W/B – B/O)Ω
(color) 459–561
Lighting coil resistance (G – G)Ω
(color) 0.23–0.29
Minimum charging current A @ r/min 14 @ 6,000
Ignition coil
Primary coil resistance
@20 °C (68 °F)Ω
1.19–1.61
Secondary coil resistance
@20 °C (68 °F) kΩ
8.5–11.5
Rectifier/regulator (R – B)
Output peak voltage
@3,500 r/min (unloaded) V 13.0
ProCarManuals.com

2-8
ESPECMAINTENANCE SPECIFICATIONS
Starter motor
Type Constant mesh
Output kW 0.8
Rating Seconds 30
Brush length mm (in) 12.5 (0.49)
Wear limit mm (in) 6.5 (0.26)
Commutator undercut mm (in) 0.7 (0.03)
Limit mm (in) 0.2 (0.01)
Commutator diameter mm (in) 28.0 (1.10)
Limit mm (in) 27.0 (1.06)
Starter relay
Rating Seconds 30
Thermoswitch
ON temperature (engine) °C (°F) 84–90 (183–194)
OFF temperature (engine) °C (°F) 70–84 (158–183)
ON temperature (exhaust) °C (°F) 80–86 (176–187)
OFF temperature (exhaust) °C (°F) 66–80 (151–176)
Engine temperature sensor
Engine temperature sensor
resistance (B/Y – B/Y)
@ 20 °C (68 °F) kΩ
54.2–69.0
@ 100 °C (212 °F) kΩ
3.12–3.48
Speed sensor
Output voltage (on pulse) V 11.6
Output pulse/one full turn 2
Throttle position sensor
Output voltage
@ throttle valve fully closed
Sensor 1 V 0.45–0.95
@ throttle valve fully opened
Sensor 2 V 4.60–4.70
Accelerator position sensor
Output voltage
@ throttle lever fully closed
Sensor 1 V 0.50–0.90
Sensor 2 V 0.35–1.05
@ throttle lever fully opened
Sensor 1 V 3.75–4.35
Sensor 2 V 3.50–4.50Item UnitModel
VX110 Sport VX110 Deluxe
ProCarManuals.com

2-9
ESPECMAINTENANCE SPECIFICATIONS
*1: The figures are for reference only.Accelerator position sensor resis-
tance
*1
@ throttle lever fully closed
Sensor 1 kΩ
0.50–0.90
Sensor 2 kΩ
0.35–10.50
@ throttle lever fully opened
Sensor 1 kΩ
3.75–4.35
Sensor 2 kΩ
3.60–4.50
Cam position sensor
Output voltage (G/O – B/O)
Position A V More than 4.8
Position B V Less than 0.8
Position C V More than 4.8
Fuel sender
Fuel sender resistance
Position AΩ
133.5–136.5
Position BΩ
5–7
Oil pressure switch
Oil pressure switch continuity
pressurekPa
(kgf/cm
2, psi)128 (1.28, 18.2)–167 (1.67, 23.8)
Fuel injector
Fuel injector resistance
*1
@ 20 °C (68 °F)Ω
11.5–12.5
Fuse
Rating
Main V/A 12/30
Main and fuel pump relay V/A 12/20
Main and fuel pump relay V/A 12/10
Electronic control throttle
valve relayV/A 12/10
Remote control unit
(Deluxe model only)V/A 12/3 Item UnitModel
VX110 Sport VX110 Deluxe
ProCarManuals.com

2-10
ESPECTIGHTENING TORQUES
TIGHTENING TORQUES
SPECIFIED TORQUES
Part to tightenedPart
nameThread
sizeQ’tyTightening torque
RemarksRefer to
page
Nmkgfmftlb
Fuel system
Retainer/fuel pump
module1st
Nut—93.20.322.3
4-1
2nd 6.4 0.64 4.6
Fuel filler neck/rubber seal Nut—1 5.9 0.59 4.3 4-1
Fuel filter hose clamp——2 3.7 0.37 2.7 4-1
Air filter case cover Screw M52 1.2 0.12 0.9
572LT4-7
4 1.5 0.15 1.1
Air filter case Bolt M8 4 17 1.7 12 4-7
Air filter case bracket Nut—4 15 1.5 11 4-7
Air intake hose clamp——1 2.5 0.25 1.8 4-7
Throttle cable Nut—1 6.5 0.65 4.7 4-7
Accelerator position sensor Nut—2 17 1.7 12 4-7
Throttle body assembly Bolt M8 4 13 1.3 9.4 4-10
Intake manifold1st
Bolt M6 28.80.886.4
242LT4-7
2nd 18 1.8 13
Intake manifold bracket/
wiring harness bracket 11st
Bolt M8 215 1.5 11
271LT4-7
2nd 39 3.9 28
Fuel rail Bolt M8 2 13 1.3 9.4 4-10
Sensor assembly Screw M5 2 3.5 0.35 2.5 4-10
Engine
Engine unit Bolt M8 4 17 1.7 12
271LT5-1
Oil filter——1171.712
E3-17
Coupling cover Bolt M6 1 7.8 0.78 5.6
572LT5-1
Thermoswitch (exhaust) Bolt M6 2 7.6 0.76 5.5
572LT5-8
Outer exhaust joint
clamp1st
——23.40.342.5
5-8
2nd 3.4 0.34 2.5
Inner exhaust joint clamp1st
——23.40.342.5
5-8
2nd 3.4 0.34 2.5
Exhaust pipe 2
*1 1st
Bolt M10 42.0 0.2 1.4242LT5-9 2nd 15 1.5 11
3rd 39 3.9 28
Exhaust pipe end1st
Bolt M6 33.70.372.7
572LT5-10
2nd 7.6 0.76 5.5
Exhaust pipe 11st
Bolt M8 422 2.2 16
242LT5-10 2nd 22 2.2 16
3rd 35 3.5 25
Exhaust manifold1st
Bolt M8 1122 2.2 16
242LT5-11 2nd 22 2.2 16
3rd 35 3.5 25
*1: For details, refer to the tightening procedures in this manual.
ProCarManuals.com

2-11
ESPECTIGHTENING TORQUES
Oil separator1st
Bolt M6 23.70.372.7572LT5-12
2nd 7.6 0.76 5.5
Ground lead box Bolt M6 3 7.6 0.76 5.5
572LT5-12
Oil tank1st
Bolt M10 515 1.5 11
572LT5-12
2nd 39 3.9 28
Plastic tie/collar1st
Bolt M6 13.70.372.7
5-12
2nd 7.6 0.76 5.5
Oil tank1st
Nut—22.0 0.2 1.4
5-12 2nd 15 1.5 11
3rd 39 3.9 28
Oil tank stay1st
Bolt M10 22.0 0.2 1.4
572LT5-12 2nd 15 1.5 11
3rd 39 3.9 28
Bracket (coupling cover)1st
Bolt M6 23.70.372.7
572LT5-15
2nd 7.6 0.76 5.5
Oil tank cover1st
Bolt M6 83.70.372.7
572LT5-15
2nd 7.6 0.76 5.5
Oil breather plate1st
Bolt M5 91.90.191.4
E5-15
2nd 4.4 0.44 3.2
Baffle plate1st
Bolt M5 31.90.191.4
E5-15
2nd 4.4 0.44 3.2
Oil strainer1st
Bolt M6 23.70.372.7
E5-15
2nd 7.6 0.76 5.5
Oil cooler cover1st
Bolt M6 243.70.372.7
572LT5-15
2nd 7.6 0.76 5.5
Anode Screw M4 1 3.8 0.38 2.7
E5-15
Oil pump assembly BoltM6 6 10 1.0 7.2
572LT5-21 1st
M8 415 1.5 11
2nd 28 2.8 20
Drain plug (engine oil) Bolt M8 1 13 1.3 9.4 5-21
Strainer1st
Bolt M6 23.70.372.7
5-21
2nd 7.6 0.76 5.5
Drive coupling——1282.820
572LT5-24
Reduction drive gear
case1st
Bolt M6 23.70.372.7
572LT5-24
2nd 7.6 0.76 5.5
1st
Bolt M8 515 1.5 11
572LT5-24
2nd 28 2.8 20
Starter motor lead Nut—1 4.9 0.49 3.5
A5-33
Starter motor Bolt M8 2 18 1.8 13 5-33
Generator cover1st
Bolt M10 815 1.5 11
572LT5-33
2nd 50 5.0 36
Flywheel magneto Bolt M10 1 75 7.5 54
E5-33
Starter clutch Bolt M8 6 24 2.4 17 5-33Part to tightenedPart
nameThread
sizeQ’tyTightening torque
RemarksRefer to
page
Nmkgfmftlb
ProCarManuals.com