Page 6 of 347

E
A50001-1-4
SYMBOLS
Symbols 1 to 9 are designed to indicate the
content of a chapter.
1General Information
2Specifications
3Periodic Inspection and Adjustment
4Fuel System
5Power Unit
6Jet Pump Unit
7Electrical System
8Hull and Hood
9Trouble Analysis
Symbols 0 to E indicate specific data.
0Special service tool
ASpecified oil or fluid
BSpecified engine speed
CSpecified tightening torque
DSpecified measurement
ESpecified electrical value
(resistance, voltage, electric current)
Symbols F to I in an exploded diagram indi-
cate the grade of lubricant and the lubrication
point.
FApply Yamaha 4-stroke motor oil
GApply water resistant grease
(Yamaha grease A, Yamaha marine grease)
HApply ThreeBond 1104J or ThreeBond 1280B
IApply molybdenum disulfide grease
Symbols J to N in an exploded diagram indi-
cate the type of sealant or locking agent and
the application point.
JApply Gasket Maker
KApply LOCTITE 271 (red)
LApply LOCTITE 242 (blue)
MApply LOCTITE 572
NApply silicone sealant
NOTE:
Additional symbols may be used in this man-
ual.
12
34
56
78
90
AB
CD
EF
GH
IJ
KL
MN
GEN
INFOSPEC
INSP
ADJFUEL
POWRJET
PUMP
–+ELECHULL
HOOD
TRBL
ANLS
T R..
E
A1280B1104J
MGM
271
LT
242
LT
572
LTSS
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Page 7 of 347
E
INDEX
GENERAL INFORMATION1GEN
INFO
SPECIFICATIONS2SPEC
PERIODIC INSPECTION AND
ADJUSTMENT
3INSP
ADJ
FUEL SYSTEM4FUEL
POWER UNIT5POWR
JET PUMP UNIT6JET
PUMP
ELECTRICAL SYSTEM7ELEC
HULL AND HOOD8HULL
HOOD
TROUBLE ANALYSIS9TRBL
ANLS
–+
A30000-0
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Page 14 of 347

1-5
E
GEN
INFO
SPECIAL SERVICE TOOLS
SPECIAL SERVICE TOOLS
Using the correct special service tools recom-
mended by Yamaha, will aid the work and
enable accurate assembly and tune-up. Impro-
visations and using improper tools can dam-
age the equipment.
NOTE:
For U.S.A. and Canada, use part numbers
starting with “J-”, “YB-”, “YM-”, “YS-”, “YU-” or
“YW-”.
For other countries, use part numbers start-
ing with “90890-”.
MEASURING
1
Dial gauge stand
P/N. 90890-06583
2
Dial gauge needle
P/N. 90890-06584
3
Dial gauge stand set
P/N. YB-06585
90890-06585
4
Dial indicator gauge
P/N. YU-03097
Dial gauge set
P/N. 90890-01252
5
Pocket tester
P/N. YU-03112
90890-03112
6
Digital multimeter
P/N. YU-34899-A
7
Digital circuit tester
P/N. 90890-03174
8
Fuel pressure gauge adapter
P/N. YW-06842
90890-06842
9
Fuel pressure gauge
P/N. YB-06766
90890-06786
4 12
3
5YU-03097 90890-01252 90890-06583 90890-06584
YB-06585
90890-06585
YU-03112
90890-03112
8YW-06842
90890-06842790890-03174
6YU-34899-A
9YB-06766 90890-06786
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Page 22 of 347

2-1
ESPECGENERAL SPECIFICATIONS
GENERAL SPECIFICATIONS
Item UnitModel
VX110 Sport VX110 Deluxe
Model code
Hull F1K
Engine/jet 6D3
Dimensions
Length mm (in) 3,220 (126.8)
Width mm (in) 1,170 (46.1)
Height mm (in) 1,150 (45.3)
Dry weight kg (lb) 325 (716)
Maximum capacity Person/kg (lb) 3/240 (530)
Performance
Maximum output kW (PS) @ r/min 81.0 (110) @ 8,000
Maximum fuel consumption l/h (US gal/h,
lmp gal/h)28.0 (7.4, 6.2)
Cruising range h 2.1
Engine
Engine type 4-stroke, L4, DOHC
Displacement cm
3 (cu. in) 1,052 (64.2)
Bore ×
stroke mm (in) 76.0 ×
58.0 (2.99 ×
2.28)
Compression ratio 11.4:1
Exhaust system Wet exhaust
Lubrication system Dry sump
Cooling system Water cooled
Starting system Electric starter
Ignition system TCI
Ignition timing Degree BTDC 5–BTDC 35
Spark plug model
(manufacturer)CR9EB (NGK)
Spark plug gap mm (in) 0.7–0.8 (0.028–0.031)
Battery capacity V/Ah 12/19
Generator output A @ r/min 12–21 @ 6,000
Drive unit
Propulsion system Jet pump
Jet pump type Axial flow, single stage
Impeller rotation Counterclockwise (viewed from rear)
Transmission Constant mesh 1-speed
Jet thrust nozzle horizontal
angleDegree 24 + 24
Jet thrust nozzle trim angle Degree 3
Reverse system—Reverse gate
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Page 23 of 347
2-2
ESPEC
PON*: Pump Octane Number = (Motor Octane Number + Research Octane Number)/2
RON*: Research Octane NumberFuel and oil
Fuel type Regular unleaded gasoline
Minimum fuel rating PON* 86
RON* 90
Fuel tank capacity L
(US gal, Imp gal)60 (15.9, 13.2)
Engine oil type 4-stroke motor oil
Engine oil grade API SE, SF, SG, SH, SJ, SL
SAE 10W-30, 20W-40, 20W-50
Engine oil quantity L
(US qt, Imp qt)4.3 (4.5, 3.8)
(without oil filter replacement) L
(US qt, Imp qt)2.0 (2.1, 1.8)
(with oil filter replacement) L
(US qt, Imp qt)2.2 (2.3, 1.9) Item UnitModel
VX110 Sport VX110 Deluxe
GENERAL SPECIFICATIONS
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Page 27 of 347
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
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Page 30 of 347
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
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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.
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