LG LX150E3 Service Manual
Vespa would like to thank you
for choosing one of its products. We have prepared this manual to help you to get the very best from your scooter. Please read it carefully before riding
the scooter for the first time. It contains information, tips and precautions for using your scooter. It also describes features, details and devices to assure
you that you have made the right choice. We believe that if you follow our suggestions, you will soon get to know your new vehicle and it will serve you
well for a long time to come. This booklet forms an integral part of the scooter; should the scooter be sold, it must be transferred to the new owner.
Vespa LX 125 150 Euro 3
The instructions given in this manual are intended to provide a clear, simple guide to using your scooter; this booklet also details routine maintenance
procedures and regular checks that should be carried out on the vehicle at an authorised Dealer or Service Centre. The booklet also contains
instructions for simple repairs. Any operations not specifically described in this manual require the use of special tools and/or particular technical
knowledge: to carry out these operations refer to any authorised Dealer of Service Centres.
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Personal safety
Failure to completely observe these instructions will result in serious risk of personal
Safeguarding the environment
Sections marked with this symbol indicate the correct use of the vehicle to prevent dam-
aging the environment.
The incomplete or non-observance of these regulations leads to the risk of serious
damage to the vehicle and sometimes even the invalidity of the guarantee.
The signs that you see on this page are very important. They are used to highlight those
parts of the booklet that should be read with particular care. As you can see, each sign
consists of a different graphic symbol, making it quick and easy to locate the various
topics.
injury.
Vehicle intactness
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INDEX
VEHICLE...................................................................................... 7
Dashboard................................................................................ 8
Clock......................................................................................... 9
Key switch................................................................................. 10
Locking the steering wheel.................................................... 10
Releasing the steering wheel................................................ 10
Switch direction indicators........................................................ 11
Horn button............................................................................... 11
Light switch............................................................................... 12
Start-up button.......................................................................... 12
The immobilizer system............................................................ 12
Keys...................................................................................... 12
Immobilizerdevice enabled indicator led............................... 13
Operation............................................................................... 13
Programming the immobilizer system................................... 14
Opening the saddle............................................................... 15
Identification.............................................................................. 16
Rear top box opening................................................................ 16
Bag clip..................................................................................... 17
USE.............................................................................................. 19
Checks...................................................................................... 20
Refuelling.................................................................................. 20
Tyre pressure............................................................................ 21
Shock absorbers adjustment.................................................... 22
Running in................................................................................. 23
Starting up the engine............................................................... 23
Precautions........................................................................... 24
Difficult start up......................................................................... 25
Stopping the engine.................................................................. 26
Automatic transmission............................................................. 26
Safe driving............................................................................... 27
MAINTENANCE........................................................................... 29
Engine oil level.......................................................................... 30
Engine oil level check............................................................ 30
Engine oil top-up................................................................... 31
Warning light (insufficient oil pressure)................................. 31
Engine oil change.................................................................. 31
Hub oil level.............................................................................. 32
Tyres......................................................................................... 34
Spark plug dismantlement........................................................ 35
Removing the air filter............................................................... 36
Secondary air system............................................................... 37
Checking the brake oil level...................................................... 38
Battery....................................................................................... 39
Checking the electrolyte level................................................ 40
Long periods of inactivity.......................................................... 40
Fuses........................................................................................ 41
Front light group........................................................................ 44
Headlight adjustment............................................................. 44
Front direction indicators........................................................... 45
Rear optical unit........................................................................ 45
Rear turn indicators................................................................... 46
Number plate light..................................................................... 46
Rear-view mirrors...................................................................... 47
Idle adjustment.......................................................................... 47
Front disc brake........................................................................ 48
Rear drum brake....................................................................... 49
Puncture.................................................................................... 49
Periods of inactivity................................................................... 50
Cleaning the vehicle.................................................................. 50
TECHNICAL DATA...................................................................... 55
Kit equipment............................................................................ 60
SPARE PARTS AND ACCESSORIES........................................ 61
Warnings................................................................................... 62
PROGRAMMED MAINTENANCE............................................... 63
Scheduled maintenance table................................................... 64
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Vespa LX 125
150 Euro 3
Chap. 01
Vehicle
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Dashboard (01_01)
A = Speedometer
B = Odometer
C = Fuel gauge
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01_01
1 Vehicle
D = Front brake control lever
E = Turn indicator warning light
F = Oil pressure warning light
G = High-beam warning light
H = Low fuel warning light
I = Low-beam/position light warning light
L = High/low beam switch
M = Turn indicator switch
N = Horn button
P = Starter button
Q = Throttle grip
R = Antitheft device LED (if available)
S = Real brake control lever
T = Digital clock
Clock (01_02)
Hours and minutes are displayed in a 1 to 12, AM or PM, format on the instrument
panel.
Operating the function selection switch «T» month, day and seconds can be seen
besides hours and minutes. In order to adjust the above mentioned functions, operate
button «U». The digital clock is powered by a battery (battery life is about 2 years); lift
the whole instrument panel to replace the battery. It is advisable to take your vehicle
to an Authorised Service Centre for this operation.
01_02
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WARNING
DEAD BATTERIES ARE HARMFUL TO THE ENVIRONMENT. THEY MUST DISPOSED OF IN SUITABLE CONTAINERS AS PRESCRIBED BY THE REGULATIONS IN FORCE.
Key switch (01_03)
LOCK = Ignition disabled, extractable key, steering lock engaged front glove-box
locked.
OFF = Ignition disabled, extractable key, steering lock disengaged, front glove-box
unlocked.
ON = Starter position, antitheft device disabled, non-extractable key, glove-box un-
locked.
01_03
Locking the steering wheel
Turn the handlebar to the left (as far as it will go), turn the key to position «LOCK»
and remove the key.
CAUTION
DO NOT TURN THE KEY TO «LOCK» OR «OFF» WHILE RIDING.
Releasing the steering wheel
Reinsert the key and turn it to «OFF».
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1 Vehicle
CAUTION
DO NOT TURN THE KEY TO «LOCK» OR «OFF» WHILE RIDING.
Switch direction indicators (01_04)
To set the left turn indicators flashing, move lever «B» to the left; to set the right turn
indicators flashing, move it to the right. The lever automatically returns to the central
position and the indicators remain on. To turn the indicators off, press the lever towards
the switch.
01_04
Horn button (01_05)
Horn button «E»
01_05
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01_06
01_07
Light switch (01_06)
0 = Low-beam and taillight
1 = High-beam and taillight
Start-up button (01_07)
To start the engine, press the starter button, «P», after pulling either one of the two
brake levers.
The immobilizer system
In order to enhance theft protection, the scooter is equipped with a «PIAGGIO IMMOBILIZER » electronic engine locking device that is activated automatically when
the starter key is removed. Upon start-up, the «PIAGGIO IMMOBILIZER» system
checks the starter key, and only if this key is recognised will the immobilizer system
allow the scooter to be started.
01_08
Keys (01_08, 01_09, 01_10)
Two types of keys come with the vehicle. Key «A» with the brown grip is the «MASTER» key. Only a single copy of this key is supplied, which is necessary to program
all your other keys and for your dealer to perform some maintenance operations. We
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1 Vehicle
01_09
01_10
01_11
therefore recommend that it be used only under exceptional circumstances. Black key
«B» (single copy supplied) is used for normal use such as:
- start-up
- saddle opening
- glove box opening
Together with the keys, you will receive a CODE CARD bearing the same code im-
printed onto the two keys.
WARNING
THE LOSS OF THE BROWN KEY PREVENTS LATER REPAIRS TO THE "PIAGGIO IMMOBILIZER" SYSTEM AND TO THE ENGINE CONTROL UNIT.
Immobilizerdevice enabled indicator led (01_11)
The activation of the «PIAGGIO IMMOBILIZER» system is shown by the flashing of
the appropriate warning light «A» (see «Instrument panel» section).
In order to reduce battery discharge, the indicator LED turns off automatically after 48
hours of uninterrupted functioning.
Should the system fail, different LED flashing patterns will be provided by an Author-
ised Piaggio-Gilera Service Centre with information on the type of fault detected.
Operation
Every time the starter key is removed in the "OFF" or "LOCK" position, the safety
system activates the immobilizer system. Turning the key to "ON" disables the engine
lock, provided that the safety system recognises the code transmitted by the key. If
the code is not recognised, turn the key first to "OFF" and then to "ON"; if the lock
cannot be disabled, try with the other key supplied (brown). If the engine cannot be
started, contact an Authorised Piaggio Service Centre, which is provided with the
electronic equipment required to detect and repair the system.
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When supplementary keys are required, remember that the programming (up to a
maximum of three keys) must be performed on all the keys whether they are new or
already in your possession.
Take the key with the brown grip and all the black keys supplied to an Authorised
Piaggio Service Centre.
The codes of keys not submitted for the new storage procedure are deleted from the
memory. Any lost keys will therefore not be enabled to start the engine.
WARNING
EACH KEY HAS ITS OWN AND UNIQUE CODE, WHICH MUST BE STORED BY
THE SYSTEM CONTROL UNIT.
VIOLENT SHOCKS MAY AFFECT THE ELECTRONIC COMPONENTS OF THE
KEY.
SHOULD THE VEHICLE CHANGE OWNERS, IT IS ABSOLUTELY NECESSARY
THAT THE NEW OWNER GET POSSESSION OF THE KEY WITH THE BROWN
GRIP (AS WELL AS ALL OTHER KEYS) AND THE «CODE CARD»
Programming the immobilizer system
Below is described the procedure to follow for programming the PIAGGIO IMMOBILIZER system and/or for storing other key codes.
Procedure start - brown key
Insert the brown key into the key switch (in the «OFF» position), turning it to the
«ON» position. After 1 - 3 seconds, turn the key to «OFF » again and pull it out.
Intermediate step - black key
After extracting the brown key, insert the black key within 10 seconds and promptly
turn it to «ON». After 1-3 seconds, turn the key to "OFF" again and pull it out.
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In this way, a maximum of 3 black keys can be programmed by repeating the above
1 Vehicle
procedure keeping the indicated times.
Final step - brown key
After extracting the last black key, insert the brown key again and turn it to «ON» (carry
out this operation within 10 seconds after extracting the previous key). Leave it in this
position for 1 to 3 seconds and return it to the «OFF» position.
Proper programming check
Insert the brown key disabling the transponder (i.e., by tilting the key hood by 90°),
and turn the key to «ON». Perform the engine start-up operation. Ensure that the
engine does not start. Insert the black key and repeat the start-up operation. Check
that the engine does start.
N.B.
IF THE ENGINE STARTS WITH THE BROWN KEY (AND WITH A DISABLED
TRANSPONDER) OR IF DURING THE PROGRAMMING A WRONG STEP HAS
BEEN CARRIED OUT, IT IS NECESSARY TO REPEAT THE PROCESS FROM THE
BEGINNING.
Opening the saddle (01_12)
Insert the key into the saddle lock «A», turn it anticlockwise and tip the saddle forward.
01_12
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Identification (01_13, 01_14)
The identification numbers consist of a prefix stamped on the chassis and on the engine, followed by a number. They should always be given when requesting spare
parts. We recommend that you check that the prefix and chassis number stamped on
the vehicle correspond with those in the vehicle documents.
CAUTION
01_13
01_14
01_15
BE REMINDED THAT ALTERING IDENTIFICATION REGISTRATION NUMBERS
CAN LEAD TO SERIOUS PENAL SANCTIONS (IMPOUNDING OF THE VEHICLE,
ETC.).
Rear top box opening (01_15)
Turn the key to the position«OFF». Then press it. With the key is in «LOCK» the glovebox is locked.
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1 Vehicle
Bag clip (01_16)
To use the retractable bag hook «B» located at the front end of the saddle, pull it
forward lightly.
01_16
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Vespa LX 125
150 Euro 3
Chap. 02
Use
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Checks
Before using the vehicle, check:
1. that the fuel tank is full.
2. The oil level in the rear hub.
3. engine oil level (see section «Engine oil level»).
4. That tyres are properly inflated.
5. correct functioning of headlights, rear taillight and turn indicators.
6. The correct functioning of the front and rear brakes.
Refuelling (02_01)
Fill fuel tank«A» with unleaded petrol (minimum octane rating = 95).
When the fuel reaches the reserve level, the warning light fitted on the instrument
panel lights up.
CAUTION
02_01
SHUT OFF THE ENGINE BEFORE REFUELLING WITH PETROL. PETROL IS
HIGHLY FLAMMABLE. DO NOT LET PETROL SPILL FROM THE TANK OR WHILE
REFUELLING
CAUTION
DO NOT BRING NAKED FLAMES OR CIGARETTES NEAR THE MOUTH OF THE
FUEL TANK: FIRE HAZARD. ALSO AVOID INHALING HARMFUL VAPOURS.
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2 Use
CAUTION
USING OILS OTHER THAN THOSE RECOMMENDED CAN SHORTEN THE LIFE
OF THE ENGINE.
Characteristic
Fuel tank capacity
~ 8.5 l (2 l of which is reserve)
Tyre pressure
CAUTION
TYRE PRESSURE SHOULD BE CHECKED WHEN TYRES ARE COLD.INCORRECT TYRE PRESSURE CAUSES ABNORMAL TYRE WEAR AND MAKES RIDING DANGEROUS.
TYRES MUST BE REPLACED WHEN THE TREAD REACHES THE WEAR LIMITS
SET FORTH BY LAW.
Characteristic
Front tyre pressure
1.6 bar
Rear tyre pressure
2 bar
Rear wheel pressure (rider and passenger):
2.3 bar
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02_02
Shock absorbers adjustment (02_02)
The preloading of the springs can be adjusted to 4 positions using the ring nut located
in the lower part of the shock absorbers and the specific spanner supplied.
Position 1: minimum preload: driver only
Position 2 medium preloading: driver only
Position 3 medium preloading: rider and passenger
Position 4: maximum preloading: driver, passenger, and luggage.
In order to carry out this operation you will need to use the specific spanner in the kit.
CAUTION
RIDING THE VEHICLE WITH THE SPRING PRELOADING NOT CORRECTLY SET
FOR THE RIDER AND POSSIBLE PASSENGER, COULD REDUCE THE COMFORT OF THE RIDE AND THE PRECISION OF THE STEERING.
WARNING
WE RECOMMEND WEARING GLOVES WHILE CARRYING OUT THIS OPERATION IN ORDER TO AVOID INJURIES.
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2 Use
02_03
02_04
Running in (02_03)
WARNING
DURING THE FIRST 1000 KM DO NOT RIDE THE VEHICLE OVER 80% OF ITS
MAXIMUM SPEED. AVOID TWISTING THE THROTTLE GRIP FULLY OR KEEPING A CONSTANT SPEED ALONG LONG SECTIONS OF ROAD. AFTER THE
FIRST 1000 KM, GRADUALLY INCREASE SPEED UNTIL REACHING THE MAXIMUM PERFORMANCE.
Starting up the engine (02_04)
The scooter is fitted with automatic transmission with a regulator and centrifugal clutch.
Therefore always start the engine with the throttle at a minimum; to start-off from still,
progressively twist the throttle grip.
The vehicle is equipped with am electric fuel pump and a starter that switch on automatically as soon as the engine is started.
In order to start the engine, it is necessary to pull either the rear brake lever "B" or the
front brake lever "C", before pressing the starting button, "A ", so as to disengage the
safety switches.
1: Rest the motorscooter on its stand "E"; check that the rear tire is off the ground.
2: Keep the throttle closed.
3: Insert the key into the ignition switch, "D", and turn to the ON position.
4: Push the starter button «A» after pulling the rear brake lever «B» or the front brake
lever «C».
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