2005 YAMAHA VX110 charging

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
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INSP
ADJ
ELECTRICAL
ELECTRICAL
Battery inspection
WARNING
Battery electrolyte is poisonous and dan-
gerous, causing severe burns, etc. Electro-
lyte contains sulfuric acid. Avoid contact
with skin, eyes or clothing.
Antidotes
External: Flush with water.
Internal: Drink large quantities of water or
milk. Follow with milk of magnesia, beaten
egg or vegetable oil. Call physician immedi-
ately.
Eyes: Flush with water for 15 minutes and
get prompt medical attention.
Batteries produce explosive gases. Keep
sparks, flame, cigarettes, etc., well away. If
using or charging the battery in an
enclosed space, make sure that it is well
ventilated. Always shield your eyes when
working near batteries.
KEEP OUT OF THE REACH OF CHILDREN.
CAUTION:
Be careful not to place the battery on its
side.
Make sure to remove the battery from the
battery compartment when adding battery
electrolyte or charging the battery.
When checking the battery, make sure the
breather hose is connected to the battery
and not obstructed.
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INSP
ADJ
ELECTRICAL
3. Inspect:
Specific gravity
Out of specification →
Charge.
4. Install:
Filler caps
CAUTION:
Before installation, rinse off any fluid from
the battery box and battery and make sure
that the battery is dry before installing it.
Specific gravity at 20 °C (68 °F):
1.28
Charging current:
1.9 A
× 10 h
5. Install:
Battery breather hose 1

Battery
Battery positive lead 2

Battery negative lead 3

Bands
CAUTION:
Connect the positive lead to the battery
terminal first.
Make sure the battery leads are con-
nected properly. Reversing the leads can
seriously damage the electrical system.
Make sure that the battery breather hose is
properly connected and is not obstructed.
Coat the terminals with a water resistant
grease to minimize terminal corrosion.
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E
–+ELEC
FUEL CONTROL SYSTEM ........................................................................... 7-31
WIRING DIAGRAM ................................................................................. 7-31
ELECTRIC FUEL PUMP ......................................................................... 7-33
FUEL SENDER ....................................................................................... 7-33
FUEL INJECTOR .................................................................................... 7-34
MAIN AND FUEL PUMP RELAY............................................................. 7-34
OIL PRESSURE SWITCH ....................................................................... 7-34
THERMOSWITCH (ENGINE).................................................................. 7-34
THERMOSWITCH (EXHAUST) .............................................................. 7-34
SLANT DETECTION SWITCH ................................................................ 7-34
REMOTE CONTROL UNIT (DELUXE MODEL ONLY) ........................... 7-34
THROTTLE POSITION SENSOR ........................................................... 7-34
ACCELERATOR POSITION SENSOR ................................................... 7-34
STARTING SYSTEM ..................................................................................... 7-35
WIRING DIAGRAM ................................................................................. 7-35
BATTERY ................................................................................................ 7-37
WIRING CONNECTIONS........................................................................ 7-37
FUSES..................................................................................................... 7-37
START SWITCH...................................................................................... 7-37
STARTER RELAY ................................................................................... 7-38
REMOTE CONTROL UNIT (DELUXE MODEL ONLY) ........................... 7-38
THROTTLE POSITION SENSOR ........................................................... 7-38
ACCELERATOR POSITION SENSOR ................................................... 7-38
STARTER MOTOR ........................................................................................ 7-39
EXPLODED DIAGRAM ........................................................................... 7-39
REMOVAL AND INSTALLATION CHART ............................................. 7-39
SERVICE POINTS .................................................................................. 7-41
Armature inspection .......................................................................... 7-41
Brush holder inspection..................................................................... 7-42
Starter motor front cover inspection .................................................. 7-42
CHARGING SYSTEM .................................................................................... 7-43
WIRING DIAGRAM ................................................................................. 7-43
FUSE ....................................................................................................... 7-44
BATTERY ................................................................................................ 7-44
LIGHTING COIL ...................................................................................... 7-44
RECTIFIER/REGULATOR ...................................................................... 7-44
OFF THROTTLE STEERING SYSTEM......................................................... 7-45
WIRING DIAGRAM ................................................................................. 7-45
STEERING SENSOR .............................................................................. 7-47
ECM......................................................................................................... 7-47
PICKUP COIL .......................................................................................... 7-47
THROTTLE POSITION SENSOR ........................................................... 7-47
ACCELERATOR POSITION SENSOR ................................................... 7-47
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–+ELECCHARGING SYSTEM
CHARGING SYSTEM
WIRING DIAGRAM
10A
10A
3A
30A20A
RR
BBRGGGGGG
RGGGB
R
B
4 5
32 1
1Battery
2Fuse (30 A)
3Fuse (20 A)
4Rectifier/regulator
5Lighting coilB: Black
G : Green
R: Red
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–+ELECCHARGING SYSTEM
FUSE
Refer to “STARTING SYSTEM”.
BATTERY
Refer to “ELECTRICAL” in Chapter 3.
LIGHTING COIL
Refer to “IGNITION SYSTEM”.
RECTIFIER/REGULATOR
Refer to “IGNITION SYSTEM”.
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TRBL
ANLS
TROUBLE ANALYSIS
TROUBLE ANALYSIS
NOTE:
Before consulting the “TROUBLE ANALYSIS CHART,” check the following items.
1. Check that the battery is charged and that its specified gravity is within specification.
2. Check that there are no incorrect wiring connections.
3. Check that all wiring connections are properly secured and that they are not rusty.
4. Check that the engine shut-off cord (lanyard) is connect to the engine shut-off switch.
5. Check that fuel is reaching the fuel rail.
TROUBLE ANALYSIS CHART
Trouble mode Check elements
ENGINE WILL NOT START
HARD STARTING
ROUGH IDLING
HIGH IDLING
ENGINE STALLS
POOR ACCELERATION
ENGINE WILL NOT STOP
POOR PERFORMANCE
LIMITED ENGINE SPEED
OVERHEATING
LOW OIL PRESSURE
LOOSE STEERING
BILGE INCREASE
IRREGULAR WARNING INDICATION
POOR BATTERY CHARGING
Relative partReference
chapter
FUEL SYSTEM
Fuel tank 4
Fuel tank breather hose 4
Fuel hose 4
Fuel filter 4
Fuel pump 4
Fuel rail 4
Fuel injectors 4
Trolling speed 3
Air filter 3
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9-5
E
TRBL
ANLS
TROUBLE ANALYSIS
POWER UNIT
Compression 5
Cylinder head gaskets 5
Cylinder block 5
Crankcase 5
Piston rings 5
Pistons 5
Bearings 5
Valve(s) and valve seat(s) 5
Valve clearance adjusting
pad(s)3
Camshaft(s) 5
Timing chain 5
Oil pump 5
Engine oil 3
Oil filter 3
Oil pressure switch 7
Bearing housing 5
Drive couplings 5
Rubber coupling 5
Pilot water hose 5
Water hose 5
Water passage 5 Trouble mode Check elements
ENGINE WILL NOT START
HARD STARTING
ROUGH IDLING
HIGH IDLING
ENGINE STALLS
POOR ACCELERATION
ENGINE WILL NOT STOP
POOR PERFORMANCE
LIMITED ENGINE SPEED
OVERHEATING
LOW OIL PRESSURE
LOOSE STEERING
BILGE INCREASE
IRREGULAR WARNING INDICATION
POOR BATTERY CHARGING
Relative partReference
chapter
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