Aprilia RS 125, RS125 2009 User Manual

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8104934

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

SAFETY WARNINGS

TECHNICAL INFORMATION

First edition: December 2005

Reprint: June 2006

Produced and printed by:

VALLEY FORGE DECA

Ravenna, Modena, Torino

DECA S.r.l.

Registered & Admin. Offices Via Vincenzo Giardini, 11 48022 Lugo (RA) - Italia Tel. 0545-216611 Fax 0545-216610 www.vftis.com deca@vftis.spx.com

on behalf of:

Piaggio & C. S.p.A.

via G. Galilei, 1 - 30033 Noale (VE) - Italia Tel. +39 - 041 58 29 111 Fax +39 - 041 44 10 54 www.aprilia.com

The following precautionary warnings are used throughout this manual in order to convey the following messages:

Safety warning. When you find this symbol on the vehicle or in



the manual, be careful to the potential risk of personal injury. Noncompliance with the indications given in the messages preceded by this symbol may result in grave risks for your and other people’s safety and for the vehicle!

Indications to make the

operations easier. Technical information.

The operations preceded by this symbol must be repeated also on

the opposite side of the vehicle. If not expressly indicated otherwise, for the

reassembly of the units repeat the disassembly operations in reverse order.

The terms “right” and “left” are referred to the rider seated on the vehicle in the normal riding position.

WARNINGS - PRECAUTIONS GENERAL ADVICE

Before starting the engine, carefully read this manual and in particular the section “SAFE DRIVE”.

Your and other people’s safety depends not only on your quickness of reflexes and on your agility, but also on what you know about the vehicle, on its efficiency and on your knowledge of the basic information for “SAFE DRIVE”.

Therefore, get a thorough knowledge of the vehicle, in such a way as to be able to drive in the traffic safely.

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This manual must be considered as an integral part of the vehicle



and must always accompany it,

even in case of resale. aprilia has carried out this manual with

the maximum attention, in order to supply the user with correct and updated information. However, since aprilia constantly improves the design of its products, there may be slight discrepancies between the characteristics of your vehicle and those described in this manual.

For any clarification concerning the information contained in this manual, do not hesitate to contact your aprilia Official Dealer.

For control and repair operations not expressly described in this publication, for the purchase of aprilia genuine spare parts, accessories and other products, as well as for specific advice, contact exclusively aprilia Official Dealers and Service Centers, which guarantee prompt and accurate assistance.

Thank you for choosing aprilia. We wish you a nice ride.

All rights as to electronic storage, reproduction and total or partial adaptation, with any means, are reserved for all Countries.

In some countries the antipollution and noise regulations in force



require periodical inspections.

The user of the vehicle in these countries must:

– contact an aprilia Official Dealer to have

the non-homologated components replaced with others homologated for use in the country in question;

– carry out the required periodical

inspections.

Soon after purchasing the vehicle, write down the identification data



indicated on the SPARE PARTS IDENTIFICATION LABEL in the table here below. The label is positioned under the rider saddle, see page 56 (REMOVING THE RIDER SADDLE).

These data indicate: – YEAR = year of manufacture (Y, 1, 2, ...);

– I.M. = modification code (A, B, C, ...); – COUNTRY CODES = homologation

country (I, UK, A, ...).

and are to be supplied to the aprilia Official Dealer as reference data for the purchase of spare parts or specific accessories of the model you have acquired.

In this manual the various versions are indicated by the following symbols:

optional

Full Power version

catalytic version

VERSION:

Italy

United Kingdom

Austria

Portugal

Finland

(

Belgium

Germany

France

Spain

Greece

)

Holland

Switzerland

Denmark

Japan

2 P

F e

@ *

# R

1 K %

Singapore

Slovenia

Israel

South Korea

Malaysia

Chile

Croatia

Australia

United States of America

Brazil

South Africa

New Zealand

Canada

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TABLE OF CONTENTS

SAFETY WARNINGS .......................................... 2

TECHNICAL INFORMATION .............................. 2

WARNINGS - PRECAUTIONS - GENERAL

ADVICE ................................................................ 2

BASIC SAFETY RULES ................................ 6

CLOTHING .................................................... 8

ACCESSORIES............................................. 8

LOAD ............................................................. 9

ARRANGEMENT OF THE MAIN ELEMENTS .. 10

ARRANGEMENT OF THE

INSTRUMENTS/CONTROLS ............................ 12

INSTRUMENTS AND INDICATORS ................. 13

INSTRUMENTS AND INDICATORS TABLE....

MULTIFUNCTION COMPUTER.................. 16

MAIN INDEPENDENT CONTROLS .................. 21

CONTROLS ON THE LEFT PART

OF THE HANDLEBAR................................. 21

CONTROLS ON THE RIGHT PART

OF THE HANDLEBAR................................. 21

IGNITION SWITCH...................................... 22

STEERING LOCK........................................ 22

AUXILIARY EQUIPMENT.................................. 23

GLOVE/TOOL KIT COMPARTMENT.......... 23

SPECIAL TOOLS J ................................. 24

MAIN COMPONENTS........................................ 25

FUEL............................................................ 25

TRANSMISSION OIL................................... 25

BRAKE FLUID-recommendations ............... 26

DISC BRAKES............................................. 26

FRONT BRAKE ........................................... 27

REAR BRAKE.............................................. 28

2 STROKE OIL TANK.................................. 29

ADJUSTING THE SHIFTING LEVER.......... 29

ADJUSTING THE REAR BRAKE ................ 30

ADJUSTING THE CLUTCH......................... 30

COOLANT ................................................... 32

TYRES ......................................................... 33

CATALYTIC SILENCER............................... 34

INSTRUCTIONS FOR USE ................................ 34

PRELIMINARY CHECKING OPERATIONS 35

STARTING ................................................... 36

DEPARTURE AND DRIVE........................... 38

RUNNING-IN................................................ 41

STOPPING................................................... 41

PARKING ..................................................... 42

SUGGESTIONS

TO PREVENT THEFT.................................. 42

MAINTENANCE.................................................. 43

REGULAR SERVICE INTERVALS CHART. 44

IDENTIFICATION DATA .............................. 46

POSITIONING THE VEHICLE ON THE REAR

SUPPORT STAND J ............................... 47

POSITIONING THE VEHICLE ON THE

FRONT SUPPORT STAND J.................. 47

CHECKING THE TRANSMISSION OIL LEVEL

AND TOPPING UP....................................... 48

CHANGING THE TRANSMISSION OIL....... 49

FRONT WHEEL ........................................... 50

REAR WHEEL.............................................. 52

DRIVE CHAIN .............................................. 54

REMOVING THE RIDER SADDLE.............. 56

REMOVING THE SIDE FAIRINGS .............. 56

REMOVING THE LOWER FAIRING............ 57

LIFTING THE FUEL TANK........................... 57

AIR CLEANER ............................................. 58

REAR SUSPENSION................................... 59

CHECKING THE BRAKE PAD WEAR......... 60

IDLING ADJUSTMENT ................................ 61

ADJUSTING

THE ACCELERATOR CONTROL................ 62

ADJUSTING

THE COLD START CONTROL ()............. 62

SPARK PLUGS ............................................ 63

BATTERY..................................................... 64

LONG INACTIVITY

OF THE BATTERY ...................................... 64

CHECKING AND CLEANING

THE TERMINALS ........................................ 65

REMOVING THE BATTERY........................ 65

CHECKING

THE ELECTROLYTE LEVEL....................... 66

RECHARGING THE BATTERY................... 66

INSTALLING THE BATTERY ...................... 66

CHANGING THE FUSES ............................ 67

CHECKING THE SWITCHES...................... 68

VERTICAL ADJUSTMENT OF THE

HEADLIGHT BEAM ..................................... 69

BULBS ......................................................... 69

CHANGING

THE HEADLIGHT BULBS ........................... 70

CHANGING

THE REAR LIGHT BULB............................. 71

TRANSPORT ..................................................... 72

CLEANING......................................................... 73

LONG PERIODS OF INACTIVITY............... 74

TECHNICAL DATA............................................ 75

LUBRICANT CHART ................................... 78

Official Dealers and Service Centres........... 80

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safe drive

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BASIC SAFETY RULES

To drive the vehicle it is necessary to be in possession of all the requirements prescribed by law (driving licence, minimum age, psychophysical ability, insurance, state taxes, vehicle registration, number plate, etc.).

Gradually get to know the vehicle by driving it first in areas with low traffic and/or private areas.

The use of medicins, alcohol and drugs or psychotropic substances notably increases the risk of accidents. Be sure that you are in good psychophysical conditions and fit for driving and pay particular attention to physical weariness and drowsiness.

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Most road accidents are caused by the driver’s lack of experience.

NEVER lend the vehicle to beginners and, in any case, make sure that the driver has all the requirements for driving.

Rigorously observe all road signs and national and local road regulations. Avoid abrupt movements that can be dangerous for yourself and other people (for example: rearing up on the back wheel, speeding, etc.), and give due consideration to the road surface, visibility and other driving conditions.

Avoid obstacles that could damage the vehicle or make you lose control.

Avoid riding in the slipstream created by preceding vehicles in



order to increase your speed. Always drive with both hands on the handlebars and both feet on the footrests (or on the rider’s footboards), in the correct driving posture.

Avoid standing up or stretching your limbs while driving.

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ONLY ORIGINALS

The driver should pay attention and avoid distractions caused by people, things and movements (never smoke, eat, drink, read, etc.) while driving.

Use only the vehicle’s specific fuels and lubricants indicated in the "LUBRICANT CHART"; check the oil, fuel and coolant levels regularly.

If the vehicle has been involved in an accident, make sure that no damage has occurred to the control levers, pipes, wires, braking system and vital parts.

If necessary, have the vehicle inspected by an aprilia Official Dealer, who should carefully check the frame, handlebars, suspensions, safety parts and all the devices that you cannot check by yourself.

Always remember to report any malfunction to the technicians to help them in their work.

Never use the vehicle when the amount of damage it has suffered endangers your safety.

Never change the position, inclination or colour of: number plate, direction indicators, lights and horns.

Any modification of the vehicle will result in the invalidity of the guarantee.

Any modification of the vehicle and/or the removal of original components can compromise vehicle performance levels and safety or even make it illegal.

We recommend respecting all regulations and national and local provisions regarding the equipment of the vehicle.

In particular, avoid all modifications that increase the vehicle’s performance levels or alter its original characteristics.

Never race with other vehicles. Avoid off-road driving.

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CLOTHING

Before starting, always wear a correctly fastened crash helmet. Make sure that it is homologated, in good shape, of the right size and that the visor is clean.

Wear protective clothing, preferably in light and/or reflecting colours. In this way you will make yourself more visible to the other drivers, thus notably reducing the risk of being knocked down, and you will be more protected in case of fall.

This clothing should be very tight-fitting and fastened at the wrists and ankles. Strings, belts and ties should not be hanging loose; prevent these and other objects from interfering with driving by getting entangled with moving parts or driving mechanisms.

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Do not keep objects that can be dangerous in case of fall, for example pointed objects like keys, pens, glass vials etc. in your pockets (the same recommendations also apply to passengers).

ACCESSORIES

The owner of the vehicle is responsible for the choice, installation and use of any accessory. Avoid installing accessories that cover horns or lights or that could impair their functions, limit the suspension stroke and the steering angle, hamper the operation of the controls and reduce the distance from the ground and the angle of inclination in turns. Avoid using accessories that hamper access to the controls, since this can prolong reaction times during an emergency. Large fairings and windscreens assembled on the vehicle can produce aerodynamic forces capable of compromising the stability of the vehicle while driving.

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Make sure that the equipment is well fastened to the vehicle and not dangerous during driving. Do not install electrical devices and do not modify those already existing to avoid electrical overloads, because the vehicle could suddenly stop or there could be a dangerous current shortage in the horn and in the lights. aprilia recommends the use of genuine accessories (aprilia genuine accessories).

LOAD

Be careful and moderate when loading your luggage. Keep any luggage loaded as close as possible to the centre of the vehicle and distribute the load uniformly on both sides, in order to reduce imbalance to the minimum. Furthermore, make sure that the load is firmly secured to the vehicle, especially during long trips.

Avoid hanging bulky, heavy and/or dangerous objects on the handlebars, mudguards and forks, because the vehicle might respond more slowly in turns and its manoeuvrability could be unavoidably impaired.

Do not place bags that are too bulky on the vehicle sides and do not ride with the crash helmet hanging from its string, because it could hit people or obstacles making you lose control of the vehicle.

Do not carry any bag if it is not tightly secured to the vehicle.

Do not carry bags which protrude too much from the luggage rack or which cover the lights, horn or indicators.

Do not carry animals or children on the glove compartment or on the luggage rack.

Do not exceed the maximum load allowed for each side-bag.

When the vehicle is overloaded, its stability and its manoeuvrability can be compromised.

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ARRANGEMENT OF THE MAIN ELEMENTS

KEY

1) Dashboard

2) Left rear-view mirror

3) Ignition switch/steering lock

4) Battery

5) Fuse carrier

6) Saddle lock

7) 2 stroke oil tank

8) 2 stroke oil tank plug

9) Glove/tool kit compartment

10) Passenger left footrest (snapping, closed/open)

83 6

1416

111213

11) Rider left footrest (with spring, always open)

12) Shifting lever

13) Side stand

14) Lower fairing

15) Horn

16) Left side fairing

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KEY

1) Passenger right footrest (snapping, closed/open)

2) Passenger grab strap

3) Rider saddle

4) Air cleaner

5) Rear brake fluid tank

14 13 12 11

6) Fuel tank plug

7) Coolant expansion tank plug

8) Expansion tank

9) Right rear-view mirror

10) Front brake fluid tank

11) Rear brake pump

5 61 4 7 8

12) Rear brake control lever

13) Rider right footrest (with spring, always open)

14) Drive chain

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ARRANGEMENT OF THE INSTRUMENTS/CONTROLS

KEY

1) Ignition switch/steering lock (

2) Cold start lever (

3) Direction indicator switch (

4) Horn push button (

5) MODEpush button

6) Dimmer switch (  -  )

7) High beam signalling push button (

)

 )

 -  - + )

( )

 )

8) Clutch lever

9) Instruments and indicators

10) Front brake lever

11) Throttle grip

12) Start push button (

13) Engine stop switch (

)

 - )

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INSTRUMENTS AND INDICATORS

1 2 3

7 6

KEY

1) Revolution counter

2) Green turn indicator warning light ( )

3) lue high beam warning light ( )

4) Multifunction digital display (coolant temperature - clock battery voltage - lap timer - mixer oil level diagnostics ( )

5 4

5) Amber low fuel warning light ( )

6) Green neutral light ( )

7) Red general warning light ( )

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INSTRUMENTS AND INDICATORS TABLE

When the ignition key is turned to " " with the engine stopped, all warning lights come on for a LED check-up and go out after two seconds. If one or more warning lights do not come on at this stage, contact an aprilia Official Dealer

Description Function

Revolution counter rpm

Direction indicator warning light Blinks when the direction indicators are on.

High beam warning light Comes on when the high beam bulbs are on or when the headlight signaller is operated.

Low fuel warning light

Neutral indicator warning light Comes on when the gear is in neutral.

Error warning light

Indicates the number of revolutions of the engine per minute.

CAUTION

It comes on when the quantity of fuel left in the tank is approx. 3.5

In this case, top up as soon as possible, see page 25 (FUEL).

Comes on when the ignition switch is set to " " with the engine stopped as a lamp test.

If the light does not come on in this phase, contact an

CAUTION

tank and mixer or high coolant temperature was detected.

In this case, check and/or top up to recommended fluid level and contact an aprilia Authorised dealer, if necessary.

Never exceed the engine max. speed rate, see page 41 (RUNNING-IN).

aprilia Official Dealer.

If the light the normal operation of the engine, this means that low fluid level in

remains on after the engine starts or comes on during

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Description Function

Displays current, average or maximum riding speed (in kilometres or miles) depending on pre-setting, see page 16 (MULTIFUNCTION COMPUTER).

Gives total distance covered or distance covered since the trip meter was last reset (in km or miles).

It reproduces engine coolant temperature on a scale, see page 16 (MULTIFUNCTION COMPUTER). If you enter the dangerous range, the display shows all six scale segments, the alarm light comes on, and logo flashes; allow the cooling fans to switch off.

CAUTION

temperature and in this case the temperature would increase even further.

Now turn the key to “” and check coolant level, see page 32 (COOLANT). Contact an

CAUTION

damaged.

It comes on when the quantity of mixer oil left in the tank is 0.60

CAUTION

page 29 (2 STROKE OIL TANK).

Displays time (hour and minutes) as preset, see page 16 (MULTIFUNCTION COMPUTER).

Displays the battery voltage in Volts, see page 16 (MULTIFUNCTION COMPUTER).

Displays the different lap times, as preset, see page 16 (MULTIFUNCTION COMPUTER).

Multifunction digital display

Speedometer (km/h - MPH)

Odometer (KM - Mi)

Coolant temperature (°C/°F)

Mixer oil reserve indicator on multifunction display

Clock

Battery voltage

Lap timer

Do not leave the ignition switch on “ ”, since the cooling fans would stop regardless of the coolant

aprilia Official Dealer.

If the maximum allowed temperature is exceeded (114 °C - 237 °F), the engine may be seriously

If oil reserve indicator comes on, this means that mixer oil level is low (reserve); top up mixer oil, see

To toggle between readouts, see page 16 (MULTIFUNCTION COMPUTER)

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A D

MULTIFUNCTION COMPUTER

Controls

1) MODE Button:

press briefly to switch across functions; press for several seconds (more than

three seconds) to change settings.

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When you turn the ignition key to " ", the following instrument panel lights will turn on for two seconds:

– all warning lights; – backlighting; – All segments on the display come on. The rev counter index (2) gets to scale end and goes back to starting position.

During the initial check-up, all instruments will briefly show the current values of the corresponding parameters. The following standard settings are displayed:

– Alarm icons, (zone A); – Current speed (zone B) – Odometer / trip meter / time / battery

voltage / lap timer (zone C) (*); – Coolant temperature (zone D). (*) The function displayed the last time the key was turned off is the one displayed first.

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Description of the functions

Press the MODE button a few times and the following functions are alternatively displayed in area C of the display:

– ODOMETER (ODO) – TRIP METER (TRIP) –CLOCK – BATTERY VOLTAGE – LAP TIMER

ODOMETER (ODO)

Displayed value indicates total distance covered by the vehicle.

It can not be reset.

TRIP METER (TRIP)

With the ODO function displayed briefly press the MODE button to display trip meter value.

With the TRIP value displayed, press and hold the MODE button to reset it.

CLOCK

With the TRIP value displayed, briefly press the MODE button to display the time.

Setting the time

With vehicle stopped and time displayed, press the MODE button for several seconds to activate time setting mode. The display will show the two digits indicating hour; every time you press the MODE button, the value increases by one; if you press the MODE button when hour value is 12, the indication will go back to 1.

Press the MODE button for several seconds to save the value and start setting minutes, the display will only show minute digits; every time you press the MODE button, the value increases by one, if you press the MODE button when value is 59, the indication will go back to 0.

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Do not disturb any button for three seconds to complete the procedure and the display will show set time.

LAP TIMER

With the Clock function displayed, briefly press the MODE button to display Lap timer function. Press the MODE button for several seconds with the vehicle running to enter the time acquisition mode, or press it with the vehicle stopped to enter the lap time display mode.

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Timing

With the vehicle running, briefly press the MODE button to start the lap timer. Press it once to start the timer, press it further within the first ten seconds to reset the lap timer. If you press it again after 10 seconds have elapsed since timer start, value is stored and timer for next lap starts. The value stored is displayed for the first 10 seconds, then the current value is shown.

Press the MODE button for several seconds to abort timing, the display will show the last value stored; timing session restarts as previously indicated.

As soon as 16 lap times have been stored, the display reads FULL, any new lap times will not be stored.

Detaching the battery will result in loss of any data stored.

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View times

Entering the Lap timer function with vehicle stopped lets you view the times stored.

The central area of the display, usually dedicated to current speed, shows LAP session number and the lap time just below.

Restart the vehicle or hold the MODE button for several seconds to quit view time mode.

Delete times

With the ODO function displayed, press the MODE button for several seconds to delete all lap times stored.

BATTERY VOLTAGE

With the Clock function displayed, briefly press the MODE button to display the battery icon and battery charge.

If the system detects a faulty voltage (not between 10 and 16 Volt) the symbol " " is displayed and flashes.

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Service interval

As the scheduled service interval is getting closer the display will show the wrench icon flashing for five seconds.

When scheduled service mileage is reached, the icon will stay on permanently.

First switch-on at 1,000 km (625 mi) Then: every 4000 km (1,700 mi) Have the scheduled service operations

performed by aprilia Authorised Dealers and Service Centres, so that they will also delete the service warning.

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Km/miles

When battery is connected, with key to " ", hold the MODE button for more than ten seconds to switch both the odometer (ODO) and the tachometer from kilometres (km) to miles (mi).

During the first five seconds the instrument panel will not react with any signal, but then current unit of measurement will start flashing. If MODE button is released before ten seconds have elapsed, the unit of measurement will still be the one previously in use.

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MAIN INDEPENDENT CONTROLS



CONTROLS ON THE LEFT PART OF THE HANDLEBAR

The electrical parts work only

position "

1) HORN PUSH BUTTON (

2) DIRECTION INDICATOR SWITCH

when the ignition switch is in

".

 )

The horn is activated when the push button is pressed.

( ( )

To indicate the turn to the left, move the switch to the left; to indicate the turn to the right, move the switch to the right. To turn off the direction indicator, press the switch.

3) DIMMER SWITCH (  -  )

When it is in position “ ” the parking lights, the dashboard light and the low beam are always on. When it is in position “ ”, the high beam comes on.

4) MODE BUTTON

Allows you to use the multifunction computer.

For the setting of the functions,



COMPUTER).

5) COLD START LEVER (

6) HIGH BEAM SIGNALLING PUSH

CONTROLS ON THE RIGHT PART OF THE HANDLEBAR

position "".

7) ENGINE STOP SWITCH (

see page 16 (MULTIFUNCTION

)

The starter for the cold start of the engine is operated by rotating the lever "" downwards. To disconnect the starter, move the lever "" to its initial position.

BUTTON ()

It makes it possible to use the high beam for signalling to forthcoming vehicles while overtaking and in case of peril and/or emergency.

The electrical parts work only when the ignition switch is in

 - )

Do not operate the engine stop switch “ running conditions.



 -  ” in

This is a safety or emergency switch. With the switch in position "", it is possible to start the engine; the engine can be stopped by moving the switch to position "".

With stopped engine and ignition switch in position "  ", the battery may



When the vehicle has come to rest, after stopping the engine, move the ignition switch to position "".

8) START PUSH BUTTON (

When the start push button "" is pressed, the starter makes the engine run. For the starting, see page 36 (STARTING).

discharge.

)

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

Position Function

Key

removal

IGNITION SWITCH

The ignition switch (1) is positioned on the upper plate of the steering column.

The key operates the ignition

switch/steering lock, the saddle lock and the fuel tank lock. Two keys are supplied together with the vehicle (one spare key).

STEERING LOCK

Never turn the key to position "



the vehicle.

OPERATION

To lock the steering:

u u u u

+" in running conditions, in

order to avoid losing control of

Turn the handlebar completely leftwards. Turn the key to position "". Press the key and rotate it to position "+". Extract the key.

Steering

lock





The steering is locked. It is not possible to start the engine.

The engine cannot be started.

The engine can be started.

It is possible to remove the key.

It is not possible to remove the key.

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AUXILIARY EQUIPMENT

GLOVE/TOOL KIT COMPARTMENT

The glove/tool kit compartment is positioned under the rider saddle; to reach it:

Position the vehicle on the stand.

Remove the rider saddle, see page 56 (REMOVING THE RIDER SADDLE).

Remove the plastic panel.

The tool kit (4) includes: – 3, 5 mm Allen spanners – 10-13 mm double fork spanner – 8-mm fork spanner – 17-21 mm spark plug socket spanner – Double-ended, cross-/4 mm hexagon

spanner-headed screwdriver.

– Special socket wrench to adjust clutch

play.

– Tool case

Max. allowed weight: 1.5 kg

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SPECIAL TOOLS J

To perform some specific operations, it is advisable to use the following special tools (to be requested to an aprilia Official Dealer):

Tool Operations Page

Rear support stand (2)

Front support stand (3)

Rear support stand coupling pins (4)

Rear wheel disassembly. Drive chain adjustment.5254

Front wheel disassembly.

Positioning of the vehicle on the rear stand. 47

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MAIN COMPONENTS

FUEL

The fuel used for internal combustion engines is



particular conditions it can become explosive. It is important to carry out the refuelling and the maintenance operations in a well-ventilated area, with the engine off. Do not smoke while refuelling or near fuel vapours, in any case avoid any contact with naked flames, sparks and any other heat source to prevent the fuel from catching fire or from exploding. Further, prevent fuel from flowing out of the fuel filler, as it could catch fire when getting in contact with the red-hot surfaces of the engine. In case some fuel has accidentally been spilt, make sure that the area has completely dried and before starting the vehicle verify that there is no fuel inside the fuel filler neck. Since petrol expands under the heat of the sun and due to the effects of sun radiation, never fill the tank to the brim. Screw the plug up carefully after refuelling. Avoid any contact of the fuel with the skin and the inhalation of vapours; do not swallow fuel or pour it from a receptacle into another by means of a tube.

extremely inflammable and in

DO NOT DISPOSE OF FUEL IN THE ENVIRONMENT.

KEEP AWAY FROM CHILDREN.

Use only unleaded petrol, in conformity with the DIN 51607 standard, min. O.N. 95 (N.O.R.M.) and 85 (N.O.M.M.).

FUEL TANK CAPACITY (reserve included): 14

TANK RESERVE: 3.5 b (mechanical reserve)

To refuel, proceed as follows:

Insert the key (1) in the tank plug lock (2).

Turn the key clockwise, pull and open the fuel flap.

TRANSMISSION OIL

Check the transmission oil level every 4000 km (2500 mi), see page 48 (CHECKING THE TRANSMISSION OIL LEVEL AND TOPPING UP). Change the transmission oil after the first 1000 km (625 mi) and successively every 12000 km (7500 mi), see page 49 (CHANGING THE TRANSMISSION OIL).

Use high-quality 75W-90 oil, see



page 78 (LUBRICANT CHART).

Engine oil can cause serious damage to the skin if handled



Wash your hands carefully after using the oil.

Do not dispose of the oil in the environment. Put it in a sealed container and take it to the filling station where you usually buy it or to an oil salvage center.

In case any maintenance operation has to be carried out, it is advisable to use latex gloves.

every day and for long periods.

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BRAKE FLUID-recommendations



This vehicle is provided with

front and rear disc brakes, with separate hydraulic circuits. The following information refers to a single braking system, but is valid for both.

Sudden resistance or clearance

problems on the brake lever may



hydraulic system. For any doubt regarding the perfect functioning of the braking system and in case you are not able to carry out the usual checking operations, contact your aprilia Official Dealer.

be due to troubles in the

Make sure that the brake discs are neither oily nor greasy,



especially after maintenance or checking operations. Check that the brake cables are neither twisted nor worn out. Prevent water or dust from accidentally getting into the circuit.

In case maintenance operations are to be performed on the hydraulic circuit, it is advisable to use latex gloves.

If the brake fluid gets in contact with the skin or the eyes, it can cause serious irritations. Carefully wash the parts of your body that get in contact with the liquid. Consult a doctor or an oculist if the liquid gets in contact with your eyes.

Do not dispose of the brake fluid in the environment.

KEEP AWAY FROM CHILDREN.

When using the brake fluid, take

care not to spill it on the plastic



or painted parts, since it can damage them.

DISC BRAKES

The brakes are the parts that most ensure your safety and for



this reason they must always be perfectly working; check them before every trip.

The brake fluid must be changed once a year by an aprilia Official Dealer.

Use brake fluid of the type specified in the lubricant chart, see page 78 (LUBRICANT CHART).

This vehicle is provided with front and rear hydraulic disc brakes. When the disc pads wear out, the level of the fluid decreases to automatically compensate for their wear.

The front brake fluid tank is positioned on the right part of the handlebar, near the front brake lever coupling.

The rear brake fluid tank is positioned under the upper part of the fairing, on the right side of the vehicle.

Periodically check the brake fluid level in the tanks, see page 27 (FRONT BRAKE), page 28 (REAR BRAKE) and the wear of the pads, see page 60 (CHECKING THE BRAKE PAD WEAR).

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Page 27

FRONT BRAKE



CHECKING

Position the vehicle on firm and flat ground.

Position the vehicle on the stand, and rotate the handlebar completely rightwards.

Make sure that the fluid level exceeds the “MIN” mark.

If the fluid does not reach the “MIN” mark, provide for topping up.

TOPPING UP

The brake fluid may flow out of the tank. Do not operate the front



plug is loose or has been removed.

and when in contact with the air it absorbs its humidity. Leave the brake fluid tank open ONLY for the time necessary for topping up.

brake lever if the brake fluid tank

Unscrew and remove the plug (1).

Avoid any prolonged exposure of the brake fluid to the air.



The brake fluid is hygroscopic

Remove the gasket (2).

Fill the tank (3) with brake fluid, see page 78 (LUBRICANT CHART), until reaching the correct level between the “MIN” and “MAX” marks.

When topping up, never exceed the “MAX” level.



It is advisable to top up until reaching the “MAX” level only with new pads.

When the disc pads wear out, the level of the fluid decreases progressively to compensate for their wear.

Do not reach the “MAX” level with worn out pads, since this will cause a fluid outflow when the pads are changed.

To reassemble the components, follow the reverse order.

Check the braking efficiency. If

necessary, contact your aprilia



Official Dealer.

In case of excessive stroke of the brake lever, of excessive elasticity or in case there is air in the circuit, contact your aprilia Official Dealer, since it may be necessary to bleed the system.

In order not to spill the brake



fluid while topping up, do not

shake the vehicle.

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Page 28



REAR BRAKE

CHECKING

Position the vehicle on firm and flat ground.

Keep the vehicle in vertical position, so that the fluid contained in the tank (1) is parallel to the plug (2).

Make sure that the fluid level exceeds the “MIN” mark.

If the fluid does not reach the “MIN” mark, provide for topping up.

TOPPING UP

The brake fluid may flow out of the tank. Do not operate the rear



brake lever if the brake fluid tank

plug is loose or has been removed.

Hold the tank (1) in a vertical position, then loosen and remove the plug (2).

Avoid any prolonged exposure of the brake fluid to the air.



and when in contact with the air it absorbs its humidity. Leave the brake fluid tank open ONLY for the time necessary for topping up.

The brake fluid is hygroscopic

Remove the gasket (4).

Hold the tank (1) in a vertical position, then top up to correct level tank (1) with brake fluid using a syringe, see page 78 (LUBRICANT CHART); correct level is between the two reference marks "MIN" and "MAX".

It is advisable to top up until reaching the “MAX” level only



with new pads. When the disc pads wear out, the level of the fluid decreases progressively to compensate for their wear. Do not reach the “MAX” level with worn out pads, since this will cause a fluid outflow when the pads are changed.

To reassemble the components, follow the reverse order.

Check the braking efficiency. If

necessary, contact your aprilia



Official Dealer.

In case of excessive stroke of the brake lever, of excessive elasticity or in case there is air in the circuit, contact your aprilia Official Dealer, since it may be necessary to bleed the system.

In order not to spill the brake

fluid while topping up, keep the fluid in the tank parallel to the tank rim (in horizontal position).

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Page 29

2 STROKE OIL TANK



Top up the 2 stroke oil tank every 500 km (312 mm).

The vehicle is provided with a separate mixer that ensures the mixing of petrol and oil for the engine lubrication, see page 78 (LUBRICANT CHART).

On the multifunction display the mixer oil reserve indicator " signal that the reserve is being used, see page 13 (INSTRUMENTS AND INDICATORS).

The use of the vehicle without 2 stroke oil causes serious damages to the engine.

If you run out of oil in the 2 stroke oil tank or if the mixer oil pipe has been removed, contact an aprilia Official Dealer, who will provide for bleeding the system.

This operation is indispensable, since the running of the engine with air in the mixer oil system may result in serious damage to the engine.

" switches on to

To introduce the 2 stroke oil in the tank, proceed as follows:

Remove the rider saddle, see page 56 (REMOVING THE RIDER SADDLE).

Remove the plug (1).

TANK CAPACITY: 1.70 TANK RESERVE: 0.60 b

Carefully wash your hands after handling the oil. Do not dispose of the 2 stroke oil

in the environment.

KEEP AWAY FROM CHILDREN.

ADJUSTING THE SHIFTING LEVER

It is possible to adjust the position of the shifting lever by means of the rod (2), proceeding as follows:

Loosen the nuts (3, 4).

Rotate the rod and adjust the shifting lever height.

Tighten the nuts (3, 4).

The shifting lever pin is kept greased thanks to the appropriate recess and to the two sealing rings.

In case of disassembly, lubricate it and avoid damaging the sealing rings.

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Page 30

ADJUSTING THE REAR BRAKE

The brake pedal is positioned ergonomically during the assembly of the vehicle. If necessary, it is possible to adjust the height of the brake pedal:

Loosen the lock nut (1).

Unscrew the brake adjuster (2) completely.

Screw the lock nut (3) completely on the pump control rod (4).

Screw the pump control rod (4) completely, then unscrew it by giving 3-4 turns.

Screw the brake adjuster (2) until the brake pedal (5) reaches the desired height.

Lock the brake adjuster (2) by means of the lock nut (1).

Unscrew the pump control rod (4) and bring it in contact with the pump piston.

Screw the rod in order to ensure a minimum clearance of 0.5÷ 1 mm between the pump control rod (4) and the pump piston.

use and maintenance RS 125

Make sure that there is a certain

clearance between the brake



adjuster and the point of contact, to prevent the brake from remaining operated and the consequent untimely wear of the braking elements.

Clearance between brake adjuster and point of contact: 0.5 ÷ 1 mm.

Lock the pump control rod by means of the lock nut (3).

Check the braking efficiency.

If necessary, contact an aprilia



Official Dealer.

After the adjustment, make sure that the wheel rotates freely with released brake.

ADJUSTING THE CLUTCH

Adjust the clutch and if the engine stops or tends to advance when the clutch lever is pulled and the gears are engaged, or if the clutch slips causing a delay in the acceleration in comparison with the engine speed.

Minor adjustments can be carried out by means of the adjuster (6):

Withdraw the protection element (7).

Loosen the nut (8) (by screwing it).

Rotate the adjuster (6), until the idle stroke at the end of the clutch lever is about 10÷15 mm (see figure).

Tighten the nut (8) (by unscrewing it) and lock the adjuster (6).

Check the idle stroke at the end of the clutch lever.

Put back the protection element (7).

Page 31

If the adjuster (6) is completely screwed or



unscrewed, or if it is not possible to obtain the correct idle stroke:

Withdraw the protection element (7).

Tighten the nut (8) completely on the adjuster (6).

Tighten the adjuster (6) completely.

Remove the left fairing, see page 56 (REMOVING THE SIDE FAIRINGS).

Unscrew and remove the plug (9) by means of a cut-headed screwdriver (or a coin).

The special spanner (10) is



available at any aprilia Official

Dealer.

Insert the special spanner (10) and loosen the inner nut (11).

Insert a cut-headed screwdriver (12) in the special spanner (10) and tighten the adjusting screw (13) completely.

Loosen the adjusting screw (13) by giving it half a turn, which corresponds to 3÷4 mm of the lever (14) stroke.

Keep the adjusting screw (12) locked by means of the screwdriver (13), act on the special spanner (10) and tighten the inner nut (11).

Tighten the plug (9) again.

Check the idle stroke at the end of the clutch lever (10÷15 mm).

Put back the left fairing.

Start the engine, see page 36 (STARTING).

Operate the clutch completely and and engage the 1st gear. Make sure that the engine does not stop, that the vehicle does not tend to advance or that the clutch does not slip during the acceleration phase or while the vehicle is running.

If it is not possible to obtain a correct adjustment or if the



clutch does not function

properly, contact your aprilia Official Dealer.

Make sure that the clutch cable

is intact: it must not present flattened parts and the sheath must not be worn out in any point.

Periodically lubricate the clutch cable with a suitable lubricant, see page 78 (LUBRICANT CHART), in order to avoid its untimely wear and corrosion.

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Page 32

COOLANT



Do not use the vehicle if the coolant is below the minimum



prescribed level.

Check the coolant level every 1500 km (935 mi) and after long rides; change it every 24 months.

The coolant is noxious: do not swallow it; if the coolant gets in



contact with the skin or the eyes,

it can cause serious irritations.

If the coolant gets in contact with your skin or eyes, rinse with plenty of water and consult a doctor. If it is swallowed, induce vomit, rinse mouth and throat with plenty of water and consult a doctor without delay.

DO NOT DISPOSE OF THE BRAKE FLUID IN THE ENVIRONMENT.

KEEP AWAY FROM CHILDREN.

Be careful not to spill the coolant on the red-hot parts of the engine: it may catch fire and send out invisible flames.

In case maintenance operations are to be performed, it is advisable to use latex gloves.

Have the coolant changed by an



aprilia Official Dealer.

The coolant is made up of 50% water and 50% antifreeze.

This mixture is ideal for most running temperatures and ensures good protection against corrosion.

It is advisable to keep the same mixture also in the hot season, since in this way losses due to evaporation are reduced and it is not necessary to top up very frequently.

The mineral salt deposits left in the radiator by evaporated water are thus reduced and the efficiency of the cooling system remains unchanged.

If the outdoor temperature is below 0°, check the cooling circuit frequently and if necessary increase the antifreeze concentration (up to maximum 60%).

For the cooling solution use distilled water, in order not to damage the engine.

Do not remove the expansion tank cap when the engine is hot,



since the coolant is under

pressure and its temperature is high.

CHECKING AND TOPPING UP

Check the coolant level and top up the expansion tank with cold



engine.

Stop the engine and wait until it has cooled down.

Position the vehicle on firm and flat ground.

Lift the fuel tank, see page 57 (LIFTING THE FUEL TANK).

Keep the vehicle in vertical position, with the two wheels resting on the ground.

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Page 33

Make sure that the level of the fluid contained in the expansion tank (1) is included between the “MIN” and “MAX” marks (see figure).

If not, unscrew and remove the filling plug (2).

Top up the expansion tank by adding coolant, see page 78 (LUBRICANT CHART), until this almost reaches the “MAX” level. Do not exceed this level, otherwise the coolant will flow out while the engine is running.

Put back the filling plug (2).

In case of excessive consumption of coolant and in



case the tank remains empty, make sure that there are no leaks in the circuit. Have it repaired by an aprilia Official Dealer.

TYRES

This vehicle is provided with tubeless tyres.

Periodically check the tyre inflation pressure at room



(TECHNICAL DATA).

If the tyres are hot, the measurement is not correct. Carry out the measurement especially before and after long rides.

If the inflation pressure is too high, the ground unevenness cannot be dampened and is therefore transmitted to the handlebar, thus compromising the driving comfort and reducing the road holding during turns.

If, on the contrary, the inflation pressure is too low, the tyre sides are under greater stress and the tyre itself may slip on the rim or it may become loose, with consequent loss of control of the vehicle.

In case of sudden braking the tyres could even get out of the rims. Further, the vehicle could skid while turning.

Check the surface and the wear of the tyres, since tyres in bad conditions can impair both the grip and the controllability of the vehicle.

temperature, see page 75

Change the tyre when it is worn out or in case of puncture on the tread side, if the puncture is larger than 5 mm. After repairing a tyre, have the wheels balanced. Use only tyres in the size suggested by aprilia, see page 75 (TECHNICAL DATA).

Make sure that the tyres always have their valve sealing caps on, to prevent them from suddenly going flat.

Change, repair, maintenance and balancing operations are very important and should be carried out by qualified technicians with appropriate tools.

For this reason, it is advisable to have the above mentioned operations carried out by an aprilia Official Dealer or by a qualified tyre repairer.

If the tyres are new, they may still be covered with a slippery film: drive carefully for the first miles. Do not oil the tyres with unsuitable fluids. If the tyres are old, even if not completely worn out, they may become hard and may not ensure good road holding. In this case, replace them.

MINIMUM TREAD DEPTH LIMIT

front: ............................................... 2 mm

rear: ................................................ 2 mm

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Page 34

CATALYTIC SILENCER



Avoid parking the vehicle catalytic version near dry brush

wood or in places easily accessible to children, as the catalytic silencer becomes extremely hot during use; be very careful and avoid any kind of contact before it has completely cooled down.

The catalytic vehicle is fitted with a silencer with metal catalytic converter of the “platinum-rhodium bivalent” type.

This device provides for the oxidation of the CO (carbon monoxide) and of the HC (unburned hydrocarbons) contained in the exhaust gases, changing them into carbon dioxide and steam, respectively.

Do not use leaded petrol, since it causes the destruction of the catalytic converter.

INSTRUCTIONS FOR USE

Before departure, always carry out a preliminary checking of the



vehicle to make sure that it functions correctly and safely, see the following table (PRELIMINARY CHECKING OPERATIONS). The nonperformance of these checking operations can cause severe personal injuries or damages to the vehicle.

Do not hesitate to consult your aprilia Official Dealer in case there is something you do not understand about the functioning of some controls or in case you suspect or discover some irregularities. It does not take long to carry out a check-up and this operation ensures you much more safety.

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Page 35

PRELIMINARY CHECKING OPERATIONS

Component Check Page

Front and rear disc brakes Check the functioning, the idle stroke of the control levers, the fluid level and make

sure there are no leaks. Check the wear of the pads. If necessary, top up the fluid tank.

Accelerator Make sure that it works smoothly and that it is possible to open and close it

completely, in all steering positions. If necessary, adjust and/or lubricate it.

2 stroke oil/ transmission oil

Check and/or top up if necessary.

29, 48, 49

Wheel/tyres Check the tyre surface, the inflation pressure, wear and tear and any damage.

Brake levers Make sure that they work smoothly. If necessary, lubricate the articulations and

adjust the stroke.

Steering Make sure that the steering rotates smoothly, without any clearance or slackening. –

Clutch The idle stroke at the end of the clutch lever must be about 10÷15 mm; the clutch

must operate without jerking and/or slipping.

Side stand Make sure that it works smoothly and that the spring tension brings it back to its

normal position. If necessary, lubricate joints and hinges. Make sure that the safety switch on the side stand operates correctly.

Fastening elements Make sure that the fastening elements are not loose.

If necessary, adjust or tighten them.

Drive chain Check the slack.

Fuel tank Check the fuel level and top up, if necessary. Make sure there are no leaks or air

bubbles in the circuit.

Coolant The coolant level in the expansion tank must be included between the "MIN" and

"MAX" marks.

Lights, warning lights, horn and electric devices

Check the proper functioning of the acoustic and visual devices. Change the bulbs or intervene in case of failure.

26, 27 28, 60

–

25, 57

64÷71

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Page 36

STARTING



Exhaust gases contain carbon monoxide, which is extremely



noxious if inhaled. Avoid starting the engine in closed or badly-ventilated rooms. The non-observance of this warning may cause loss of consciousness or even lead to death by asphyxia.

With the side stand down, the

engine can be started only if the gears are in neutral; in this case, if you try to engage the gears, the engine stops. With the side stand up, it is possible to start the engine either in neutral gear or with engaged gears and pulled in clutch lever.

Let the stand up.

Get on the vehicle.

Rotate the key (1) and move the ignition switch to position "

Lock at least one wheel, by pulling a brake lever.

Position the shifting lever in neutral (green warning light "

Move the engine stop switch (2) to position "

Make sure that the dimmer switch (3) is in position “”.

If the vehicle is started with cold engine, rotate the cold start lever " downwards.

".

" on).

" (4)

To avoid excessive consumption



start push button “” pressed for more than fifteen seconds. If the engine does not start in this lapse of time, wait ten seconds and press the start push button “

top up mixer oil, see page 29 (2 STROKE OIL TANK).

of the battery, do not keep the

” again.

Press the start push button “” (5) without accelerating and release it as soon as the engine starts.

If mixer oil reserve indicator "



" comes on, this means that

mixer oil level is low (reserve);

use and maintenance RS 125

Avoid pressing the start push button “



is running, since you may

damage the starter.

” (5) when the engine

Page 37

Keep at least one brake lever pulled and do not accelerate until you start.

Never leave abruptly with cold engine.



polluting substances and the consumption of fuel, warm the engine up by proceeding at low speed for the first miles.

To reduce the emission of

Rotate the cold start lever “” (4) upwards after the engine has warmed up.

STARTING WITH FLOODED ENGINE

If the starting is not carried out properly or if there is too much fuel in the intake ducts and in the carburettor, the engine may get flooded.

To clean a flooded engine:

Carry out the first nine operations described for the starting procedure.

Rotate the cold start lever “” (4) upwards.

Press the start push button “” (5) for a few seconds (letting the engine spin over) with completely open throttle (Pos. A).

STARTING WITH COLD ENGINE

When the room temperature is low (about 0 °C), it may be difficult to start the engine at the first attempt.

In this case:

Rotate the cold start lever “” (4) downwards.

Press the start button “” (5) for at least ten seconds and at the same time rotate the throttle grip slightly.

If the engine starts.

Release the throttle grip (6).

Rotate the cold start lever “” (4) upwards. If the idling is unstable, twist the throttle grip (6) slightly and frequently.

If the engine does not start.

Wait for a few seconds and then repeat the starting procedure.

STARTING AFTER A LONG PERIOD OF INACTIVITY

After a long period of inactivity, make the starter run for about ten seconds without accelerating, in order to ensure the filling of the float chamber.

To start the engine, slightly open the throttle and carry out the starting procedure.

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Page 38

DEPARTURE AND DRIVE

This vehicle is considerably

powerful and must be used



gradually and with the greatest care. Do not place objects behind the front part of the fairing.

Before departure, carefully read



the "safe drive" chapter, see p. 5 (SAFE DRIVE). If the low fuel light " " (1) on the instrument panel comes on while vehicle is running, it means that you still have 3.5

Provide for topping up as soon as possible, see page 25 (FUEL)



While riding, keep your hands on the grips and your feet on the footrests.

NEVER RIDE IN ANY POSITION OTHER THAN THOSE INDICATED.

If you drive with a passenger, instruct him/her so that he/she does not create problems during manouvres.

b of fuel in the tank.

If you drive without passenger,

make sure that the passenger

footrests are folded.

To leave:

Adjust the inclination of the rear-view mirrors correctly.

With the vehicle at rest, try to get acquainted with the use of the



rear-view mirrors. The reflecting surface is convex, therefore the objects seem to be farther away than they actually are. These mirrors offer a “wide-angle” view and only experience will allow you to evaluate the distance of the following vehicles correctly.

Ride at reduced speed for the first miles, in order to warm the engine up.

With released throttle grip (2) (Pos. A) and engine idling, pull the clutch lever (3) completely.

Engage the first gear, by pressing the shifting lever (4) downwards.

Release the brake lever (pulled on the starting).

On departure, the abrupt release of the clutch lever may cause the



engine to stall or the vehicle to

jerk forwards.

Never accelerate abruptly or excessively when releasing the clutch lever, in order to prevent the clutch from "slipping" (slow release) or the front wheel from raising (rearing up) (quick release).

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Page 39

Slowly release the clutch lever (3) and at the same time accelerate by rotating the throttle grip moderately (2) (Pos. B). The vehicle will start moving.

Never exceed the recommended



rpm, see page 41 (RUNNING-IN).

Increase the speed by gradually rotating the throttle grip (2) (Pos. B), without exceeding the recommended rpm, see page 41 (RUNNING-IN).

To engage the second gear:

Proceed quickly. Never ride the vehicle at too low



rpm.

Release the throttle grip (2) (Pos. A), pull the clutch lever (3) and lift the shifting lever (4). Release the clutch lever (3) and accelerate.

Repeat the last two operations and shift up.

If mixer oil reserve indicator

" comes on, this means that



mixer oil level is low (reserve); top up mixer oil, see page 29 (2 STROKE OIL TANK).

The downshifting should be carried out in the following situations:

When riding downhill or when braking, in order to increase the braking action by using the compression of the engine.

When riding uphill, if the gear engaged is not suitable to the speed (high gear, moderate speed) and the engine rpm decreases.

Shift the gears one by one; the simultaneous downshifting of



more than one gear may make you exceed the maximum rpm (red line). Before and during the downshifting, release the throttle grip and decelerate, in order to avoid the "red line".

To shift down, proceed as follows:

Release the throttle grip (2) (Pos. A).

If necessary, pull the brake levers moderately and decrease the speed of the vehicle.

Pull the clutch lever (3) and lower the shifting lever (4) to shift down.

If the brake levers are pulled, release them.

Release the clutch lever and accelerate moderately.

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Page 40

Avoid opening and closing the throttle grip repeatedly and



continuously, so that you do not accidentally lose control of the vehicle. If you have to brake, close the throttle and put on both brakes in order to obtain uniform deceleration, properly exerting pressure on the braking parts.

By putting on the front brake only or the rear brake only, you reduce the braking force considerably, thus running the risk of locking one wheel and consequently losing grip.

If you stop uphill, decelerate completely and use the brakes only to keep the vehicle steady. The use of the engine to keep the vehicle steady may cause the overheating of the clutch.

accelerating slightly; avoid braking at the last moment: it would be very easy to skid.

If the brakes are operated continuously on downhill stretches, the friction surfaces may overheat, thus reducing the braking efficiency. Exploit the engine compression and shift down by putting on both brakes intermittently. Never drive downhill with the engine off!

In case of wet ground or scarce wheel grip (snow, ice, mud, etc.), drive slowly, avoiding sudden brakings or manoeuvres that could make you lose grip and fall down.

Before beginning to turn, slow down or brake driving at moderate and constant speed or

manhole covers, indications painted on the road surface, building site metal plates become rather slippery by rain. For this reason all these obstacles have to be carefully avoided, driving smoothly and bending the vehicle as little as possible.

Always use the turn indicators in time when you intend to change lane or direction, avoiding sharp and dangerous movements. Switch off the direction indicators as soon as you have changed direction.

Be extremely careful when you overtake other vehicles or are overtaken.

In case of rain, the water cloud created by big vehicles reduces visibility; the air shift may make you lose control of the vehicle.

Pay the utmost attention to any obstacle or variation of the ground. Uneven roads, rails,

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Page 41

RUNNING-IN

The running-in of the engine is important to ensure its correct functioning. If possible, drive on hilly roads and/or roads with many bends, so that the engine, the suspensions and the brakes undergo a more effective running-in. During running-in, change speed. In this way the components are first ìloadedî and then ìrelievedî and the engine parts can thus cool down. Even if it is important to stress the engine components during running-in, take care not to exceed.

Only after the first 1500 km (937



the best performance levels from the vehicle.

Keep to the following indications:

mi) of running-in you can expect

Do not open the throttle completely if the speed is low, both during and after the running-in. During the first 100 km (62 mi) put on the brakes with caution, avoiding sharp and prolonged brakings. This ensures a correct bedding-in of the pads on the brake disc. During the first 800 km (500 mi) never exceed 6000 rpm.

After the first 1000 km (625 mi) , carry out the checking



operations indicated in the column "After running-in" of the REGULAR SERVICE INTERVALS CHART, see page 44 (REGULAR SERVICE INTERVALS CHART), in order to avoid hurting yourself or other people and/or damaging the vehicle.

Between the first 800 km (500 mi) and 1600 km (1000 mi) drive more briskly, change speed and use the maximum acceleration only for a few seconds, in order to ensure better coupling of the components; never exceed 9000 rpm (see table).

After the first 1600 km (1000 mi) you can expect better performance from the engine, however, without exceeding the max 11000 rpm.

Engine maximum rpm

for the running-in

Mileage km (mi) Max. (rpm)

0÷800 (0÷500) 6000

800÷1600 (500÷1000) 9000

over 1600 (1000) 11000

STOPPING

If possible, avoid stopping abruptly, slowing down suddenly



and braking at the last moment.

Release the throttle grip (1) (Pos. A), gradually put on the brakes and at the same time shift down in order to decrease the speed, see page 38 (DEPARTURE AND DRIVE).

Once the speed has decreased, before stopping the vehicle:

Pull the clutch lever (2) in order to prevent the stopping of the engine.

When the vehicle has come to rest:

Position the shifting lever in neutral (green warning light “

Release the clutch lever.

In case of a brief stop, keep at least one brake on.

” on).

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Page 42

PAR K I N G



Park the vehicle on firm and flat ground, to prevent it from falling



Neither lean the vehicle against walls, nor lay it on the ground. Make sure that the vehicle and especially its red-hot parts do not represent a danger for persons and children. Do not leave the vehicle unattended when the engine is on or the key is inserted into the ignition switch. Do not sit on the vehicle when the stand is down.

down.

Stop the vehicle, see page 41 (STOPPING). Move the engine stop switch (1) to position “ Rotate the key (2) and move the ignition switch (3) to position “

”.

Position the vehicle on the stand, see below (POSITIONING THE VEHICLE ON THE STAND).

Never leave the key in the



ignition switch.

Lock the steering, see page 22 (STEERING LOCK) and extract the key.

POSITIONING THE VEHICLE ON THE STAND

Seize the left grip (4) and the passenger grab strap (5).

Press the side stand with your right foot and extend it completely (6).

Incline the vehicle until the stand rests on the ground.

Steer the handlebar completely leftwards.

Make sure that the vehicle is



stable.

SUGGESTIONS TO PREVENT THEFT

Do not use any “brake lock” devices. Failure to heed this



braking system and lead to an accident thus provoking serious injuries or death.

NEVER leave the ignition key inserted and always use the steering lock.

Park the vehicle in a safe place, possibly in a garage or a protected place.

When possible, use an additional anti-theft device.

Make sure that all documents are in order and the road tax has been paid.

Write down your personal data and telephone number in this page, to facilitate the identification of the owner in case of finding after theft.

SURNAME: ...............................................

NAME: .......................................................

ADDRESS: ................................................

TELEPHONE NO.: ....................................

written in the use/maintenance manual.

warning can seriously damage the

...................................................................

Very often stolen vehicles are identified thanks to the data

use and maintenance RS 125

Page 43

MAINTENANCE

Risk of fire. Keep fuel and other flammable substances away from the



electrical components. Before beginning any service

operations or inspection of the vehicle, switch off the engine and remove the key, wait until the engine and the exhaust system have cooled down and, if possible, lift the vehicles with the proper equipment onto firm and flat ground.

Before proceeding, make sure that the room in which you are working is properly ventilated.

Keep away from the red-hot parts of the engine and of the exhaust system, in order to avoid burns.

Do not hold any mechanical

piece or other parts of the

vehicle with your mouth: the



components are not edible and some of them are noxious or even toxic.

If not expressly indicated

otherwise, for the reassembly of

the units repeat the disassembly



operations in reverse order.

In case any maintenance operation should be required, it is advisable to use latex gloves.

Routine maintenance operations can usually be carried out by the user, but sometimes specific tools and specific technical skills may be required. In case periodic maintenance operations, assistance or technical advice are needed, contact an aprilia Official Dealer, who will ensure you prompt and accurate servicing.

Ask your aprilia Official Dealer to test the vehicle on the road after a repair or periodic maintenance operation. In any case, personally carry out the “Preliminary checking operations” after any maintenance operation, see page 35 (PRELIMINARY CHECKING OPERATIONS).

use and maintenance RS 125

Page 44

REGULAR SERVICE INTERVALS



CHART

OPERATIONS TO BE CARRIED OUT BY THE aprilia Official Dealer (WHICH CAN BE CARRIED OUT EVEN BY THE USER).

Key

" = check and clean, adjust, lubricate or

change, if necessary;

# = clean; $ = change; % = adjust.

Carry out the maintenance

operations more frequently if you use the vehicle in rainy and dusty areas or on uneven ground.

After running-in

Component

Battery - Terminal fastening Electrolyte level

Spark plug "" $ Air cleaner #$ Clutch clearance %% – Light system "" – Brake fluid "" – Coolant every 1500 km (935 mi): " Mixer oil level every 500 km (312 mi): "

Transmission oil $"

Headlight beam direction operation

Engine idling rpm %% – Wheels/Tyres and inflation

pressure Drive chain tension and

lubrication Front and rear brake pad

wear

[1000 km

(625 mi)]

"" –

– " –

" every 2000 km (1250 mi): "

Every 4000 km

(2500 mi)

or 12 months

every 1000 km (625 mi): "

every 500 km (312 mi): "

Every 8000 km

or 24 months

every 12000 km

(5000 mi)

(7500 mi): $

use and maintenance RS 125

Page 45

OPERATIONS TO BE CARRIED OUT BY



THE aprilia Official Dealer.

Key

" = check and clean, adjust, lubricate or

change, if necessary;

# = clean; $ = change; % = adjust.

Carry out the maintenance

operations more frequently if you use the vehicle in rainy and dusty areas or on uneven ground.

After running-

Component

Rear shock absorber – – " Battery - Terminal fastening " –– Carburettor "# – Transmission cables and controls "" – Unit RAVE Wheel centering – " – Steering bearings and steering clearance "" – Wheel bearings – " – Brake discs "" – General running of the vehicle "" – Braking systems "" – Cooling system "" – Brake fluid every year: $ Coolant every 2 years: $ Fork oil and oil seal every 12000 km (7500 mi): $

Piston and linings

Odometer transmission cable – – " Wheels/Tyres and inflation pressure "" – Nut, bolt, screw tightening "" – Mixer oil reserve indicator "" – Final transmission (chain, crown, pinion) – " –

Fuel pipe – "

Braking system pipe – "

Mixer oil pipe – "

Clutch wear – " – Exhaust valve

in [1000 km

(625 mi)]

" – %

every 8000 km (5000 mi): " / every 16000 km

"# + % –

Every 4000 km (2500 mi) or 12

months

(10000 mi): $

Every 8000 km (5000 mi) or 24

months

every 4 years:

use and maintenance RS 125

Page 46

IDENTIFICATION DATA

It is a good rule to write down the frame and engine numbers in the space provided in this manual.

The frame number can be used for the purchase of spare parts.

Do not alter the identification



numbers if you do not want to incur severe penal and administrative sanctions. In particular, the alteration of the frame number results in the immediate invalidity of the guarantee.

use and maintenance RS 125

ENGINE NUMBER

The engine number is stamped on the upper part of the crankcase, on the left side.

Engine no. ________________________

FRAME NUMBER

The frame number is stamped on the right side of the steering column.

Frame no. ________________________

Page 47

POSITIONING THE VEHICLE ON THE REAR SUPPORT STAND J

Screw and tighten the pin (1) - in the

appropriate seat on the rear fork.

Have someone help you keep



the vehicle in vertical position

with the two wheels on the ground.

Make the two housings on the stand (2) coincide with the two pins (1) provided on the vehicle.

Rest one foot on the rear part of the stand (3).

Push the stand (3) downwards until it reaches the end of its stroke (see figure).

POSITIONING THE VEHICLE ON THE FRONT SUPPORT STAND J

Position the vehicle on the appropriate rear support stand (POSITIONING THE VEHICLE ON THE REAR SUPPORT STAND J).

Insert the two ends of the stand (4) in the two holes (5) positioned on the lower ends of the front fork.

Rest one foot on the front part of the stand (6).

Push the stand (6) downwards until it reaches the end of its stroke (see figure).

-, see beside

use and maintenance RS 125

Page 48

CHECKING THE TRANSMISSION



OIL LEVEL AND TOPPING UP

Carefully read page 25 (TRANSMISSION OIL) and page 43 (MAINTENANCE).

Check the transmission oil level every 4000 km (2500 mi), change it after the first 1000 km (625 mi) and successively every 12000 km (7500 mi), see page 49 (CHANGING THE TRANSMISSION OIL).

CHECKING

Position the vehicle on firm and



flat ground.

Stop the engine and let it cool down for at least ten minutes, in order to allow the oil to flow back to the oil pan and to cool down.

Remove the left fairing, see page 56 (REMOVING THE SIDE FAIRINGS).

Keep the vehicle in vertical position, with the two wheels resting on the ground.

The non-performance of the



operations described above may result in a wrong measurement of the level.

Make sure that the oil level is included between one fourth (MIN) and a half (MAX) of the height of the glass (1).

The oil level must neither exceed



a half of the height of the glass, nor fall below one fourth. In the first case the excess oil would flow out of the oil pan; in the second case the engine may get seriously damaged.

TOPPING UP

If it were necessary to top up, proceed as follows:

Unscrew and remove the filling cap (2).

Pour a small quantity of oil and wait about one minute, to allow the oil to flow uniformly inside the pan.

Make sure that the oil level is included between one fourth (MIN) and a half (MAX) of the height of the glass (1).

If this is not the case, top up again with small quantities of oil and repeat the check through the glass (1), until reaching the prescribed level (MAX).

At the end of the operation, screw and tighten the filling cap (2).

Tighten the filling cap thoroughly and make sure that there are no oil leaks.

Periodically check that there are no leaks in correspondence with the oil pan cover seal.

Do not use the vehicle with insufficient lubrication or with contaminated or unsuitable lubricants, since this would accelerate the wear of the moving parts and may also cause irreparable failures.

use and maintenance RS 125

Page 49

CHANGING THE TRANSMISSION



OIL

Carefully read page 25 (TRANSMISSION OIL) and page 43 (MAINTENANCE).

Check the transmission oil level every 4000 km (2500 mi), change it after the first 1000 km (625 mi) and successively every 12000 km (7500 mi).

CHANGING

Start the engine, see page 36 (STARTING) and let it idle for a few minutes, in order to facilitate the outflow of the oil during the draining phase.

Position the vehicle on firm and



flat ground.

Stop the engine and let it cool down for at least ten minutes, in order to allow the oil to flow back to the oil pan and to cool down.

When warmed up, the engine contains hot oil; therefore, while



carrying out the operations described here below be particularly careful, in order to avoid burns.

Remove the left fairing, see page 56 (REMOVING THE SIDE FAIRINGS).

Keep the vehicle in vertical position, with the two wheels resting on the ground.

Put a container (1) with at least 600 cm³ capacity in correspondence with the drain plug (2).

Unscrew and remove the drain plug (2).

Unscrew and remove the filling plug (3).

Drain the oil and let it drip into the container (1) for a few minutes.

Remove the metal residues from the drain plug (2) magnet.

Check and if necessary replace the sealing washer of the drain plug (2).

Screw and tighten the drain plug (2).

Drain plug (2) driving torque: 27 Nm (2.7 kgm).

Pour about 600 cm³ of transmission oil through the filling opening (3), see page 78 (LUBRICANT CHART).

Tighten the filling plug (3).

Start the engine, see page 36 (STARTING) and let it idle for about one minute, in order to ensure the filling up of the transmission oil circuit.

Check the oil level and top up if necessary, see page 48 (CHECKING THE TRANSMISSION OIL LEVEL AND TOPPING UP).

Tighten the filling plug and the drain plug thoroughly and make sure that there are no oil leaks.

Periodically check that there are no leaks in correspondence with the oil pan cover seal.

Do not use the vehicle with insufficient lubrication or with contaminated or unsuitable lubricants, since this would accelerate the wear of the moving parts and may also cause irreparable failures.

use and maintenance RS 125

Page 50



2 8

FRONT WHEEL

The disassembly and reassembly of the front wheel



operators. If necessary, contact an aprilia Official Dealer. If you want to perform these operations personally, keep to the following instructions.

Carefully read page 43 (MAINTENANCE).

While disassembling and reassembling the wheel, be careful not to damage the brake pipes, the discs and the pads.

front and rear support stands

may be difficult for unskilled

To remove the front wheel it is



necessary to use the appropriate

use and maintenance RS 125

DISASSEMBLY

Position the vehicle on the appropriate rear support stand, see page 47 (POSITIONING THE VEHICLE ON THE REAR SUPPORT STAND J).

Position the vehicle on the appropriate front support stand, see page 47 (POSITIONING THE VEHICLE ON THE FRONT SUPPORT STAND J).

Make sure that the vehicle is



stable.

Have someone keep the handlebar steady in running position, so that the steering is locked.

Brake caliper screw (1) driving torque: 50 Nm (5.0 kgm).

Unscrew and remove the two screws (1) that fasten the front brake caliper (2).

Withdraw the brake caliper (2) from the disc, leaving it attached to the pipe (3).

Never pull the front brake lever after removing the brake caliper,

may go out of their seats, thus causing the outflow of the brake fluid. In this case consult your aprilia Official Dealer, who will carry out the proper maintenance operation.

Screw (4) driving torque: 80 Nm (8 kgm).

otherwise the caliper pistons

Loosen and remove the screw (4), taking the washer.

Partially unscrew the two screws (5) of

the wheel pin clamp. Put a support (6) under the tyre, in such a

way as to keep the wheel in its position after loosening it.

Withdraw the wheel pin (7) from the left side.

Remove the wheel sliding it from the front end and collect the spacers (8) and (9).

Page 51



REASSEMBLY

Carefully read page 43 (MAINTENANCE).

Spread a film of lubricating grease on the whole length of the wheel pin (7), see page 78 (LUBRICANT CHART).

While reassembling the wheel, be careful not to damage the brake pipe, the disc and the pads.

Correctly position the spacer (9).

The spacer ring (8) must be



longer diameter facing the fork right rod.

positioned with the side having

Position the spacer ring (8) in its seat on the wheel.

Position the wheel between the fork rods on the support (6).

Danger of injury.

Do not introduce your fingers to



align the holes.

Move the wheel until its central hole and the holes on the fork are aligned.

Introduce the wheel pin (7) completely.

Position the washer and tighten the screw (4) manually.

Lock the rotation of the whell pin (7).

Tighten the screw (4) definitively.

Screw (4) driving torque: 80 Nm (8 kgm).

Proceed with care, in order not



to damage the brake pads.

Insert the brake caliper (2) on the disc and position it so that its fastening holes and the holes on the support are aligned.

Upon reassembly of the brake

caliper, replace the caliper

fastening screws (1) with two new screws of the same type.

Screw and tighten the two screws (1) that fasten the brake caliper.

Brake caliper screw (1) driving torque: 50 Nm (5.0 kgm).

With pulled front brake lever, press the handlebar repeatedly, thrusting the fork downwards. In this way the fork rods will settle properly.

Tighten the two screws (5) of the

wheel pin clamp.

Wheel pin clamp screw (5) driving torque: 12 Nm (1,2 kgm)

Remove the front support stand -, see page 47 (POSITIONING THE VEHICLE ON THE FRONT SUPPORT STAND J).

Remove the rear support stand -, see page 47 (POSITIONING THE VEHICLE ON THE REAR SUPPORT STAND J).

After reassembly, pull the front brake lever repeatedly and



check the correct functioning of

the braking system.

Check the wheel centering.

Have the driving torques, centering and balancing of the wheel checked by your aprilia Official Dealer, in order to avoid accidents that may be harmful for you and/or other people.

use and maintenance RS 125

Page 52

REAR WHEEL

The disassembly and reassembly of the rear wheel may be difficult for unskilled



operators. If necessary, contact an aprilia Official Dealer.

If you want to perform these operations personally, keep to the following instructions.

Carefully read page 43 (MAINTENANCE). Before carrying out the following operations, let the engine and the silencer cool down until they reach room temperature, in order to avoid burns.

While disassembling and reassembling the wheel, be



careful not to damage the brake

pipe, the disc and the pads.

To remove the rear wheel it is



rear support stand

necessary to use the appropriate

use and maintenance RS 125

DISASSEMBLY

Position the vehicle on the appropriate rear support stand, see page 47 (POSITIONING THE VEHICLE ON THE FRONT SUPPORT STAND J).

Brake caliper screw (13) driving torque: 22 Nm (2.2 kgm).

Unscrew and remove the two screws (13) that fasten the rear brake caliper (11).

Withdraw the brake caliper from the disc, leaving it attached to the pipe (11).

Wheel nut (1) driving torque: 100 Nm (10 kgm).

Loosen and remove the nut (1), taking the washer.

Put a support (2) under the tyre, in such a way as to keep the wheel in its position after loosening it.

Withdraw the wheel pin (3) from the right side.

Check the arrangement of the



tighteners, in order to be able to reassemble them correctly.

right (4) and left (5) chain

Take the right (4) and left (5) chain tighteners.

Lower the drive chain (6) outside



the crown gear (7).

Make the wheel advance and release the drive chain (6) from the crown gear (7).

Withdraw the wheel from the rear fork from behind, carefully withdrawing the disc from the brake caliper.

Never pull the rear brake lever after removing the wheel,



may go out of their seats, thus causing the outflow of the brake fluid. In this case consult your aprilia Official Dealer, who will carry out the proper maintenance operation.

to be able to reassemble them correctly.

otherwise the caliper pistons

Check the arrangement of the



spacer rings (8) and (9), in order

Page 53



Take the left spacer ring (8).

Take the right spacer ring (9).

REASSEMBLY

Moderately grease the outer seats of the wheel hub.

Do not invert the left (8) and right



caliper (11) is positioned correctly; the plate slot must be inserted in the appropriate stop pin (12) in the inner part of the rear fork left rod. Insert the disc in the brake caliper carefully.

(9) spacer rings.

Insert the left (8) and right (9) spacer rings in their seats on the wheel hub

Before proceeding with the reassembly, make sure that



support plate (10) of the brake

Position the wheel between the rear fork rods on the support (2).

Do not introduce your fingers

between the chain and the crown



gear.

Make the wheel advance and position the drive chain (6) on the crown gear (7).

Danger of injury.

Do not introduce your fingers to



align the holes.

Move the wheel backwards, until its central hole and the holes on the rear fork are aligned. Rotate the support plate (10), complete with brake caliper (11) and with fulcrum on the stop pin (12), until it is aligned with the holes.

Do not invert the right (4) and left



(5) chain tighteners.

Correctly insert the right (4) and left (5) chain tighteners in their seats on the fork. Uniformly apply a moderate quantity of grease on the wheel pin (3). Introduce the wheel pin (3) completely on the left side.

Make sure that the wheel pin (3)



head in the relevant seat on the left chain tightener (5).

Wheel nut (1) driving torque: 100 Nm (10 kgm).

new screws of the same type.

Brake caliper screw (13) driving torque: 22 Nm (2.2 kgm).

the braking system. Check the wheel centering. Have the driving torques, centering and balancing of the wheel checked by your

aprilia Official Dealer, in order to avoid accidents that may be harmful for you and/or other people.

is completely inserted, with the

Position the washer and tighten the nut (1) manually. Check the chain tension, see page 54 (DRIVE CHAIN). Tighten the nut (1).

Proceed with care, in order not



to damage the brake pads.

Insert the brake caliper (11) on the disc and position it so that its fastening holes and the holes on the support are aligned.

Upon reassembly of the brake caliper, replace the caliper fastening screws (13) with two

Screw and tighten the two screws (13) that fasten the brake caliper.

After reassembly, pull the rear brake lever repeatedly and check the correct functioning of

use and maintenance RS 125

Page 54

DRIVE CHAIN

Carefully read page 43 (MAINTENANCE).

The vehicle is equipped with a chain with ring link joint.

In case of disassembly and reassembly of the chain, make sure that the clip (1) of the ring link joint has its open side opposite the travelling direction (see figure).

An excessive slackening of the chain can cause it to come off of



in accidents or serious damage to the vehicle. Periodically check the slack and adjust it if necessary, see beside (ADJUSTMENT). To change the chain, contact an aprilia Official Dealer, who will ensure you prompt and accurate servicing.

the sprockets, which often results

use and maintenance RS 125

Incorrect maintenance may cause the untimely wear of the



pinion and/or the crown. Carry out the maintenance operations more frequently if you use the vehicle in difficult conditions or on dusty and/or muddy roads.

CHECKING THE SLACK

To check the slack, proceed as follows:

u u u u

chain and/or damages to the

Stop the engine. Position the vehicle on the stand. Position the shifting lever in neutral. Make sure that the vertical oscillation, in an intermediate point between pinion and crown in the lower part of the chain, is about 25 ÷ 35 mm. Move the vehicle forwards, or turn the wheel, in order to be able to check the vertical oscillation of the chain even when the wheel turns; the slack must be constant in all the rotation phases of the wheel.

If in some positions the slack is higher than in others, this means that there are crushed or seized



links; in this case, contact an aprilia Official Dealer. To prevent the risk of seizures, lubricate the chain frequently, see page 55 (CLEANING AND LUBRICATION).

If the slack is uniform, but higher or lower than 25 ÷ 35 mm, adjust it, see below (ADJUSTMENT).

ADJUSTMENT

To adjust the chain it is



rear support stand

If after the check it is necessary to adjust the chain tension, proceed as follows:

necessary to use the appropriate

Position the vehicle on the appropriate rear support stand -, see page 47 (POSITIONING THE VEHICLE ON THE FRONT SUPPORT STAND J).

Page 55

Loosen the nut (2) completely.

For the wheel centering fixed



reference marks (3-4) are provided, which can be seen inside the chain tightener seats on the rear fork arms, before the wheel pin.

Loosen the two lock nuts (5).

Act on the adjusters (6) and adjust the chain slack, making sure that the reference marks (3-4) are correctly positioned on both sides of the vehicle.

Tighten the two lock nuts (5).

Tighten the nut (2).

Wheel nut driving torque: 100 Nm (10 kgm).

CHECKING THE WEAR OF CHAIN, PINION AND CROWN

Further, check the chain and sprockets and make sure that they do not present:

Damaged rollers.

Loose pins.

Dry, rusty, crushed or seized links.

Excessive wear.

Sprocket or teeth excessively worn or damaged.

If the chain rollers are damaged and/or the pins are loose, it is necessary to change the whole



chain unit (both sprockets and chain).

Lubricate the chain frequently, especially if there are dry or rusty parts. The crushed or



seized links must be lubricated and made work again. If this is not possible, contact an aprilia Official Dealer, who will provide for changing the chain.

Check the wear of the chain tightener roller (7).

Finally, check the wear of the rear fork protection shoe.

CLEANING AND LUBRICATION

Carry out the adjustment, lubrication, cleaning and change of the chain with great care.



Lubricate the chain every 500 km (312 mi) or whenever necessary.

Lubricate the chain with spray grease for chains or with SAE 80W-90 oil.

Never wash the chain with water jets, steam jets, high-pressure water jets and highly inflammable solvents.

Check the chain slack, see page 54 (CHECKING THE SLACK).

use and maintenance RS 125

Page 56

REMOVING THE RIDER SADDLE

Position the vehicle on the stand.

Insert the key (1) in the lock (2).

Rotate the key (1) anticlockwise.

Raise and remove the saddle (3).

Upon reassembly:

Before lowering and locking the



saddle, make sure that you have not left the key in the glove / tool kit compartment.

Fit the front key (4) in its housing (5) in the seat.

Position the coupling (6) in its seat (7), lower and press the saddle, making the lock snap.

Before leaving, make sure that

the saddle (3) is properly

positioned and locked.



use and maintenance RS 125

REMOVING THE SIDE FAIRINGS

Carefully read page 43 (MAINTENANCE).

Wait until the engine and the exhaust silencer have completely cooled down.



Position the vehicle on the stand.

Unscrew and remove the two screws (8).

Before removing the fairing (12), disconnect the two terminals (11) from the turn indicator.

Loosen and remove the three lower screws (9); loosen and remove the two top screws (10).

Handle the plastic and painted components with care and avoid scraping or damaging them.



Move away the side fairing (12), be careful when removing the top pegs from

their seats in the headlight fairing. Proceed in the same way to remove the right fairing.

Page 57

REMOVING THE LOWER FAIRING

Carefully read page 43 (MAINTENANCE)

Wait until the engine and the exhaust silencer have completely cooled down.



Loosen and remove the four screws (13), on the right side and the other four on the left side.

Handle the plastic and painted components with care to avoid scraping or damaging them.



Remove the lower fairing (14).

LIFTING THE FUEL TANK

Carefully read page 25 (FUEL) and page 43 (MAINTENANCE).

Risk of fire. Wait until the engine and the exhaust silencer have



completely cooled down.

Fuel vapours are noxious for your health. Before proceeding, make sure that the room in which you are working is properly ventilated. Do not inhale fuel vapours. Do not smoke and do not use naked flames.

DO NOT DISPOSE OF FUEL IN THE ENVIRONMENT.

Remove the rider saddle, see page 56 (REMOVING THE RIDER SADDLE).

Unscrew and remove the screw (2) and take the bushing.

Remove the fuel tank support rod (3) from the relevant anchorage seats.

use and maintenance RS 125

Page 58

Slightly raise the fuel tank (4) at the front disconnect connector (5) and fuel line (6).

Completely raise the fuel tank (4) and slide in the rod (3) as shown:

use and maintenance RS 125

AIR CLEANER

Clean the air cleaner every 4000 km (2500 mi) or 12 months, change it every 8000 km (5000 mi) or more frequently if the vehicle is used on dusty or wet roads.

It is possible to clean the air cleaner partially after using the vehicle on this kind of roads.

The partial cleaning of the filter does not exclude or postpone



the replacement of the filter itself.

REMOVAL

Lift the fuel tank, see page 57

(REMOVING THE LOWER FAIRING).

Unscrew and remove the two screws

(1).

Unscrew and remove the two screws (2)

and take the nuts positioned under them.

Remove the filter case cover (3).

Remove the filtering element (4) together

with the grids (5).

Plug the opening with a clean cloth, to prevent any foreign



matters from entering the

suction pipes.

Page 59

CLEANING

Clean the filtering element (4) with clean, non-inflammable solvents or solvents with high volatility point, then let it dry thoroughly.

Apply a filter oil or a thick oil (SAE 80W-

90) on the whole surface of the filtering element, then squeeze it to eliminate the oil in excess.

The filtering element (4) must be



dripping.

CHANGING

well impregnated, though not

Replace the filtering element (4) with a new one of the same type.

REAR SUSPENSION

The rear suspension consists of a springshock absorber unit, fixed to the frame by means of silent-blocks and to the rear fork by means of lever systems. For the setting of the vehicle attitude, the shock absorber is provided with a nut (1) for the adjustment of the spring preload (2).

It is possible to adjust the shock



personalize the vehicle attitude. For this kind of adjustment, contact an aprilia Official Dealer.

absorber axis distance to

ADJUSTING THE REAR SHOCK ABSORBER

The standard setting of the rear shock absorber is such as to satisfy most driving conditions at low and high speed, either with reduced load and full load. However, it is also possible to adjust the setting according to the intended use of the vehicle.

use and maintenance RS 125

Page 60

The adjusting nut must not be screwed for more than 25 mm



(see figure). If this measure is exceeded, even the slightest unevenness on the road surface will cause sudden jerks.

the road, until obtaining the optimal adjustment.

from the beginning of the thread

Act on the adjusting nut (1) (shock absorber spring preload adjustment) (see figure).

Turn the adjusting nut (1) one turn at a time.



Test the vehicle repeatedly on

Adjusting nut (1)

Function Spring

Attitude The vehicle is

Recommen ded kind of road

Notes Rider and

By screwing it (clockwise)

preload increase

more rigid

Smooth or normal roads

passenger

By unscrewing it (anticlockwise)

Spring preload decrease

The vehicle is less rigid

Roads with uneven surface

Solo rider

CHECKING THE BRAKE PAD WEAR

Carefully read page 26 (BRAKE FLUIDrecommendations), page 26 (DISC BRAKES) and page 43 (MAINTENANCE).

The following information refer to a single braking system, but are valid for both.

Check the brake pad wear after the first 1000 km (625 mi) and successively every 2000 km (1250 mi). The wear of the brake pads depends on the use, on the kind of drive and on the road. The wear will be greater when the vehicle is driven on dirty or wet roads.

Check the wear of the brake pads, especially before every



trip.

To carry out a rapid checking of the wear of the pads, proceed as follows:

Position the vehicle on the stand.

Carry out a visual checking of the friction

material thickness by looking between

the brake caliper and the pads.

Proceed: – from below, on the front part, for the front

brake caliper (1);

– from below, on the rear part, for the rear

brake caliper (2).

use and maintenance RS 125

Page 61

The excessive wear of the friction material would cause the



with the disc, with consequent metallic noise and production of sparks from the caliper; braking efficiency, safety and soundness of the disc would thus be negatively affected.

– Front pad (3). – Rear pad (4).

contact of the pad metal support

If the thickness of the friction material (even of one pad only) has reduced to about 1 mm, replace both pads.

Have the pads changed by your aprilia Official Dealer.



IDLING ADJUSTMENT

Carefully read page 43 (MAINTENANCE).

Adjust the idling every time it is irregular.

To carry out this operation, proceed as follows:

Ride for a few miles until reaching the normal running temperature,

see page 15 (Coolant temperature (°C/°F))

Position the gear lever in neutral (green warning light “

Check the engine idling rpm on the revolution counter.

The engine idling speed must be about 1250 ± 100 rpm.

” on).

If necessary:

Position the vehicle on the stand.

Adjust the knob (1).

By SCREWING IT (clockwise), you increase the engine rpm. By UNSCREWING IT (anticlockwise), you decrease the engine rpm.

Twist the throttle grip, accelerating and decelerating a few times to make sure that it functions correctly and to check if the idling speed is constant.

If necessary, contact your aprilia



Official Dealer.

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Page 62

ADJUSTING THE ACCELERATOR CONTROL

Carefully read page 43 (MAINTENANCE).

The idle stroke of the throttle grip must be 2÷3 mm, measured on the edge of the grip itself. If this is not the case, proceed as follows:

Position the vehicle on the stand.

Withdraw the protection element (2).

Loosen the lock nut (3).

Rotate the adjuster (4) in such a way as to restore the prescribed value.

After the adjustment, tighten the lock nut (3) and check the idle stroke again.

Put back the protection element (2).

After the adjustment, make sure that the rotation of the handlebar



idling rpm and that the throttle grip returns smoothly and automatically to its original position after being released.

does not modify the engine

ADJUSTING THE COLD START CONTROL (

Carefully read page 43 (MAINTENANCE).

The ideal slack of the cold start control should be about 2 ÷ 3 mm.

To adjust the slack, proceed as follows:

Position the vehicle on the stand.

Lift the fuel tank, see page 57 (REMOVING THE LOWER FAIRING).

Move to the left side of the vehicle.

DO NOT withdraw the accelera-



tor cable protection element (1).

Withdraw the protection element (2).

Loosen the nut (3).

Act on the adjuster (4) positioned on the carburettor.

)

After the adjustment:

Tighten the nut (3), thus locking the adjuster (4) and put back the protection element (2).

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Page 63

SPARK PLUGS



Carefully read page 43 (MAINTENANCE).

Check the spark plug after the first 1000 km (625 mi) and successively every 4000 km (2500 mi); change it every 8000 km (5000 mi).

Periodically remove the spark plug and clean it carefully, removing carbon deposits; change it if necessary.

To reach the spark plug:

Lift the fuel tank, see page 57 (REMOVING THE LOWER FAIRING).

To remove and clean the spark plug:

Take off the spark plug cap (1).

Remove all the dirt from the base of the spark plug, then unscrew it with the spanner you will find in the tool kit and extract it from its seat, taking care that neither dust nor other substances enter the cylinder.

Make sure that there are neither carbon deposits, nor corrosion marks on the electrode and on the central porcelain part; if necessary, clean them with the special cleaners for spark plugs, with an iron wire and/or a metal brush.

Energetically blow some air, in order to prevent the removed residues from getting into the engine. If the spark plug has crackings on the insulating material, corroded electrodes or excessive deposits, it must be changed.

Check the spark plug gap with a thickness gauge. The gap must be 0.7 ÷ 0.8 mm; if necessary adjust it, carefully bending the earth electrode.

Make sure that the washer is in good conditions. With the washer on, screw the spark plug by hand in order not to damage the thread.

Tighten the spark plug by means of the spanner you will find in the tool kit, giving it half a turn to compress the washer.

Spark plug driving torque: 20 Nm (2 kgm).

The spark plug must be well tightened, otherwise the engine

may overheat and be seriously damaged. Use the recommended type of spark plug only, see page 75 (TECHNICAL DATA), in order not to compromise the life and performance of the engine.

Position the spark plug cap properly, so that it does not come off due to the vibrations of the engine.

Put back the fuel tank.

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Page 64

BATTERY

Carefully read page 43 (MAINTENANCE).

Check the electrolyte level and the tightening of the terminals after the first 1000 km (625 mi) and successively every 4000 km (2500 mi) or 12 months.

The electrolyte in the battery is toxic and caustic and if it gets in



contact with the skin it can cause burns, since it contains sulphuric acid. Wear protection clothes, a face mask and/or goggles during maintenance operations.

In case of contact with the skin, rinse with plenty of water.

In case of contact with the eyes, rinse with plenty of water for fifteen minutes, then consult an oculist without delay.

If the electrolyte is accidentally swallowed, drink a lot of water or milk, then continue drinking milk of magnesia or vegetable oil and consult a doctor without delay.

The battery gives off explosive gases; keep it away from flames, sparks, cigarettes and any other source of heat.

During the recharging or the use, make sure that the room is properly ventilated and avoid inhaling the gases released during the recharging.

KEEP AWAY FROM CHILDREN.

Do not incline the vehicle too much, in order to avoid dangerous leaks of the battery fluid.

Never invert the connection of



the battery cables.

Connect and disconnect the battery with the ignition switch in position “ Connect first the positive cable (+) and then the negative cable (–). Disconnect following the reverse order.

”.

LONG INACTIVITY OF THE BATTERY

If the vehicle remains unused for



the 20A fuse, in order to avoid the battery deterioration resulting from the current consumption due to the multifunction computer.

To remove the 20A fuse it is necessary to set the digital clock function to zero. To reset the digital clock, see page 16 (MULTIFUNCTION COMPUTER).

If the vehicle remains unused for more than fifteen days, it is necessary to recharge the battery, in order to prevent its sulphation, see page 66 (RECHARGING THE BATTERY).

It is important to check the charge periodically (about once a month), during the winter or when the vehicle remains unused, in order to prevent the deterioration of the battery.

If the battery remains on the vehicle, disconnect the cables from the terminals.

more than 20 days, disconnect

Remove the battery, see page 65 (REMOVING THE BATTERY) and put it in a cool and dry place.

Recharge it completely with a normal charge, see page 66 (RECHARGING THE BATTERY).

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Page 65

REMOVING THE BATTERY

function to zero. To reset the digital clock, see page 16 (MULTIFUNCTION COMPUTER).

To remove the battery it is



necessary to set the digital clock

CHECKING AND CLEANING THE TERMINALS

Carefully read page 64 (BATTERY).

Lift the fuel tank, see page 57 (REMOVING THE LOWER FAIRING).

Make sure that the cable terminals (1) and the battery terminals (2) are:

– in good conditions (and not corroded or

covered with deposits);

– covered with neutral grease or Vaseline.

If necessary:

Make sure that the ignition switch is in position “

Disconnect first the negative (–) and then the positive cable (+).

Brush with a wire brush to eliminate any sign of corrosion.

Reconnect first the positive (+) and then the negative cable (–).

Cover the terminals of the cables and of the battery with neutral grease or Vaseline.

”.

Carefully read page 64 (BATTERY).

Make sure that the ignition switch is in position “

Lift the fuel tank, see page 57 (REMOVING THE LOWER FAIRING).

Disconnect first the negative (–) and then the positive cable (+).

Remove the battery breather pipe (3).

Unscrew and remove the screw (4).

Move the coolant expansion tank (5).

Remove the battery from its compartment and put it on a flat surface, in a cool and dry place.



”.

Once it has been removed, the battery must be stored in a safe place and kept away from children.

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Page 66

CHECKING



THE ELECTROLYTE LEVEL

Carefully read page 64 (BATTERY).

To check the electrolyte level, proceed as follows:

Lift the fuel tank, see page 57 (REMOVING THE LOWER FAIRING).

Keep the vehicle in vertical position, with the two wheels resting on the ground.

Make sure that the fluid level is included between the two "MIN" and "MAX" notches stamped on the battery side. Otherwise:

Remove the battery, see page 65 (CHECKING AND CLEANING THE TERMINALS).

Remove the element plugs.

Top up with distilled water only.

Do not exceed the “MAX” mark,

since the electrolyte level increases during the recharge.

Top up by adding distilled water.

RECHARGING THE BATTERY

Carefully read page 64 (BATTERY).

Remove the battery, see page 65 (REMOVING THE BATTERY).

Remove the element plugs.

Check the electrolyte level, see beside (CHECKING THE ELECTROLYTE LEVEL).

Connect the battery with a battery charger.

A recharge with an amperage equal to 1/10th of the battery capacity is recommended.

After the recharging operation, check the electrolyte level again and if necessary top up with distilled water.

Put back the element plugs.

Reassemble the battery only 5-10 minutes after disconnecting the



recharge apparatus, since the battery continues to produce gas for a short lapse of time.

INSTALLING THE BATTERY

Carefully read page 64 (BATTERY).

Make sure that the ignition switch is in position “

Lift the fuel tank, see page 57 (REMOVING THE LOWER FAIRING).

Put the battery in its container.

Connect the breather pipe.



corroding the electric system, painted parts, rubber elements or gaskets when they exit the breather pipe itself.

Connect, in order, the positive (+) and negative (–) cable.

Cover the terminals of the cables and of the battery with neutral grease or Vaseline.

Position the coolant expansion tank (2) correctly.

Tighten the screw (3).

Lower and lock the fuel tank.

”.

Always connect the battery breather pipe, to prevent the sulphuric acid vapours from

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Page 67

CHANGING THE FUSES

Carefully read page 43 (MAINTENANCE).

Do not repair faulty fuses. Never use fuses different from the recommended ones.



The use of unsuitable fuses may cause damages to the electric system or, in case of short circuit, even a fire.

If a fuse blows frequently, there



probably is a short circuit or an overload in the electric system. In this case it is advisable to consult an aprilia Official Dealer.

If an electric component does not work or works irregularly, or if the vehicle fails to start, it is necessary to check the fuses.

Turn the ignition switch to position "", to avoid any accidental short circuit.

Lift the fuel tank, see page 57 (REMOVING THE LOWER FAIRING).

To remove the 20A fuse it is



necessary to set the digital clock function to zero. To reset the digital clock, see page 16 (MULTIFUNCTION COMPUTER).

Extract the fuses one by one and check if the filament is broken.

Before replacing a fuse, try to find out the cause of the trouble, if possible.

Replace the damaged fuse with a new one having the same amperage.

If you use one of the spare fuses,



put a new fuse in the proper seat.

ARRANGEMENT OF THE FUSES

1) 20A fuse From the battery to key switch, voltage regulator, clock.

2) 15A fuse

From the key switch to all light loads and horn, solenoid valves motor

3) 7.5A fuse

From the key switch to ignition, start safety device.

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A, RAVE

Page 68

CHECKING THE SWITCHES

Carefully read page 43 (MAINTENANCE).

The vehicle is provided with three switches: – Stoplight switch on the rear brake control

lever (1);

– Stoplight switch on the front brake

control lever (2);

– Safety switch on the side stand (3).

use and maintenance RS 125

Make sure that there are no dirt or mud deposits on the switch; the pin must be able to move without interferences, returning automatically to its initial position.

Make sure that the cables are connected correctly.

Check the spring (4): it must not be damaged, worn or weakened.

Page 69

VERTICAL ADJUSTMENT OF THE HEADLIGHT BEAM

NOTE Beam inspection procedures may vary from country to country. Observe the law in force in the country of the user.

To set beam height:

Working on the central lower side of the headlight fairing, use the 8-mm fork spanner to turn bolt (1). TIGHTEN (clockwise), to raise the beam. SLACKEN (counter clockwise), to lower the beam.

BULBS

Carefully read page 43 (MAINTENANCE).

Before changing a bulb, turn the ignition switch to position " Change the bulb wearing clean



gloves or using a clean and dry cloth.

Do not leave fingerprints on the bulb, since these may cause its overheating and consequent breakage. If you touch the bulb with bare hands, remove any fingerprint with alcohol, in order to prevent it from blowing.

DO NOT FORCE THE ELECTRIC CABLES.

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".

Page 70

CHANGING THE HEADLIGHT BULBS

Carefully read page 69 (BULBS).

Position the vehicle on the stand.

Before changing a bulb, check



(CHANGING THE FUSES).

The headlight contains:

the fuses, see page 67

One high beam bulb (1) (right side). Two parking light bulbs (2) (right and left

side). One low beam bulb (3) (left side).

To change the bulbs, proceed as follows:

PARKING LIGHT BULB

To extract the bulb socket, do



not pull the electric wires.

HWorking on the headlight fairing rear

end, right or left according to the bulb to be changed, grasp the bulb holder (4), pull and detach it from its seat.

Withdraw the parking light bulb (5) and replace it with one of the same type.

LOW/HIGH BEAM LIGHT

Working on the headlight fairing rear end, right or left according to the bulb to be changed, disconnect connector (6).

Rotate the lock ring anticlockwise and extract the bulb (7).

Fit a new bulb of equal rating.

Refit the bulb holder into the seat and rotate clockwise to lock in place.

Refit the connector (6).

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Page 71

CHANGING THE REAR LIGHT BULB

Carefully read page 69 (BULBS).

Before changing a bulb, check



(CHANGING THE FUSES) and the effective operation of the stoplight switches, see page 68 (CHECKING THE SWITCHES).

the fuses, see page 67

Position the vehicle on the stand.

HRemove the rider seat, see page 56

(REMOVING THE RIDER SADDLE) .

H Remove the panel to gain access to

the tool kit compartment.

H Unscrew and remove the two screws

(1).

H Remove the passenger seat sliding it

off under the passenger grab strap.

NOTE: Upon reassembly, fit the passenger seat keys in their housings.

Turn the bulb holder (2) anticlockwise and remove it.

Press the bulb (3) slightly and rotate it anticlockwise.

Extract the bulb from its seat.

Insert the bulb in the bulb



socket, making the two bulb pins coincide with the relevant guides on the socket.

Correctly install a new bulb of the same type.

Refit bulb holder (2) in its housing and turn it clockwise until it locks in place.

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Page 72

TRANSPORT

During transport, the vehicle must



be firmly anchored and the 1st gear must be engaged, in order to avoid any leak of fuel, oil, coolant.

In case of failure, do not tow the vehicle, but ask for assistance.

be kept in vertical position, it must

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Page 73

CLEANING

Clean the vehicle frequently if it used in particular areas or conditions, such as:

Polluted areas (cities and industrial areas).

Areas characterized by an high percentage of salinity and humidity (sea areas, hot and humid climates).

Particular conditions (use of salt and anti-ice chemical products on the roads during the winter).

Avoid leaving deposits of industrial and polluting powders, tar spots, dead insects, bird droppings, etc. on the body.

Avoid parking the vehicle under trees, since in some seasons residues, resins, fruits or leaves fall down, which contain substances that may damage the paint.

After the vehicle has been washed, its braking functions



could be temporarily impaired because of the presence of water on the grip surfaces. Calculate long braking distances to avoid accidents. Brake repeatedly to restore normal conditions.

Carry out the preliminary checking operations, see page 35 (PRELIMINARY CHECKING OPERATIONS).

To remove dirt and mud from the painted surfaces use a low- pressure water jet, carefully wet the dirty parts, remove mud and filth with a soft car sponge impregnated with a lot of water and shampoo (2 ÷ 4% parts of shampoo in water). Then rinse with plenty of water and dry with chamois leather.

To clean the outer parts of the engine use a degreaser, brushes and wipers.

Polish with silicone wax only



after having carefully washed the vehicle.

Do not use polishing pastes on matt paints.

Do not wash the vehicle under the sun, especially during the summer, when the body is still warm, since if the shampoo dries before being rinsed away, it can damage the paint.

Do not use water (or liquids) at a temperature exceeding 40°C to clean the plastic components of the vehicle.

Use neither high pressure water/air jets, nor vapour jets on the following parts: wheel hubs, controls on the right and on the left side of the handlebar, bearings, brake pumps, instruments and indicators, silencer exhaust, glove/tool kit compartment, ignition switch/steering lock.

Do not use alcohol, fuel or solvents to clean the rubber and plastic parts: use only water and mild soap.

Do not use solvents or oil-derivated fluids (such as acetone, trichloroethylene, turpentine, fuel, thinners) to clean the seat. You can use detergents with surface-active agents up to 5% (mild soap, degreasing agents or alcohol).

Carefully dry the seat when clean.

Do not apply protection waxes onto the saddle, in order not to



make it too slippery.

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Page 74

LONG PERIODS OF INACTIVITY

If the vehicle remains unused for



more than 20 days, disconnect the 20A fuse, in order to avoid the battery deterioration resulting from the current consumption due to the multifunction computer.

NOTE: Disconnecting the 20-A fuse will reset the clock and red line setting. To re-set these functions, see page 16 (MULTIFUNCTION COMPUTER) .

After a long period of inactivity of the vehicle some precautions are necessary to avoid any problem.

Further, it is important to carry out the necessary repairs and a general check up before the period of inactivity, since you could forget to carry them out later.

Proceed as follows:

Extract the spark plug and pour a teaspoon (5-10 cm³ ) of two-stroke engine oil into the cylinder. Move the ignition switch to position “ press the start push button “ seconds, to distribute the oil evenly on the cylinder surfaces. Put back the spark plug.

use and maintenance RS 125

” for a few

”,

Remove the battery, see page 65 (REMOVING THE BATTERY) and page 64 (LONG INACTIVITY OF THE BATTERY).

Wash and dry the vehicle, see page 73 (CLEANING).

Polish the painted surfaces with wax.

Inflate the tyres, see page 33 (TYRES).

By means of a suitable support, position the vehicle so that both tyres are raised from the ground.

Place the vehicle in an unheated, nothumid room, away from sunlight, with minimum temperature variations.

Cover the vehicle avoiding the use of plastic or waterproof materials.

AFTER A PERIOD OF INACTIVITY

Uncover and clean the vehicle, see page 73 (CLEANING).

Check the charge of the battery, see page 66 (RECHARGING THE BATTERY) and install it, see page 66 (INSTALLING THE BATTERY).

Refill the fuel tank, see page 25 (FUEL).

Carry out the preliminary checking operations, see page 35 (PRELIMINARY CHECKING OPERATIONS).

Have a test ride at moderate speed in a low-traffic area.



Page 75

TECHNICAL DATA

DIMENSIONS Max. length .................................................. 1955 mm

Max. width ................................................... 720 mm

Max. height (front part of the fairing included) 1100 mm

Seat height .................................................. 805 mm

Distance between centres ........................... 1345 mm

Min. ground clearance ................................. 163 mm

Weight ready for starting.............................. 139 kg

ENGINE Type ............................................................. one-cylinder, 2-stroke with laminar suction. Separate lubrication

with variable strength automatic mixer (1.0 - 3.0 %).

Number of cylinders..................................... 1

Total displacement ....................................... 124.82 cm³

Bore / stroke ................................................ 54 mm / 54.5 mm

Compression ratio........................................ 12.5 ± 0.5 : 1

Starting ........................................................ electric

Engine idling rpm......................................... 1250 ± 100 rpm

Clutch .......................................................... multidisc in oil bath, with manual control on the left side of the

handlebar.

Cooling ........................................................ liquid-cooled

CAPACITY Fuel (reserve included).................................

Fuel reserve .................................................

Transmission oil ............................................ 600 cm³

Transmission oil

Coolant .........................................................

2 stroke oil (reserve included) ......................

2 stroke oil reserve .......................................

Front fork oil ................................................. 440 ± 2cm³ (for each rod)

Seats ............................................................ 2

Vehicle max. load

(driver + passenger + luggage) .................... 180 kg

A .....................................

14 b ± 0.5

3.5

600 cm³

b (50% water + 50% antifreeze with ethylene glycol)

0.8

1.7

0.60

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Page 76

TRANSMISSION Type ............................................................. mechanical, 6 gears with foot control on the left side of the engine

GEAR RATIOS

Ratio Primary Secondary

19/63 = 1 : 3.316 10 / 30 = 1: 3.000

14 / 29 = 1: 2.071 17 / 27 = 1: 1.588 19 / 25 = 1: 1.316 21 / 24 = 1: 1.143 22 / 23 = 1: 1.045

Final ratio Total ratio 17 / 40 = 1 : 2.353 1 : 23.406

1 : 16.161 1 : 12.391 1 : 10.266 1 : 8.916 1 : 8.156

CARBURETTOR Number ........................................................ 1

Model ........................................................... DELL’ORTO PHBH 28

FUEL SUPPLY Fuel .............................................................. unleaded petrol according to the DIN 51607 standard, min. O.N. 95

(N.O.R.M.) and 85 (N.O.M.M.)

FRAME Type ............................................................. two-beam, with cast and stamped sheet elements

Steering inclination angle............................. 25° 30’

Fore stroke................................................... 102 mm

SUSPENSIONS Front............................................................. hydraulically operated telescopic fork

Stroke........................................................... 120 mm

Rear ............................................................. hydraulic adjustable mono-shock absorber

Stroke........................................................... 44.5 mm

BRAKES Front............................................................. disc brake - Ø 320 mm - with hydraulic transmission

Rear ............................................................. disc brake - Ø 220 mm - with hydraulic transmission

WHEEL RIMS Type ............................................................. light alloy

Front............................................................. 3.00 x 17”

Rear ............................................................. 4.00 x 17”

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Page 77

TYRES FRONT......................................................... 110/70 17” 54H; 110/70 ZR 17” 54W

- Inflation pressure for solo rider...................

- Inflation pressure for rider

and passenger...........................................

REAR ........................................................... 150/60 R17” 66H; 150/60 ZR 17” 66W

- Inflation pressure for solo rider...................

- Inflation pressure for rider

and passenger...........................................

IGNITION Type.............................................................. CDI

Spark advance ............................................. 12° ± 2° to 2000 rpm

SPARK PLUG

ELECTRIC Battery.......................................................... 12 V - B9-B

SYSTEM Fuses............................................................ 20 - 15 - 7.5 A

BULBS Low beam (halogen)..................................... 12 V - 55 W H11

StandardA .................................................

Standard

Spark plug gap ............................................. 0.7 ÷ 0.8 mm

Generator .................................................... 12 V - 180 W

High beam (halogen).................................... 12 V - 55 W H11

Parking light.................................................. 12 V - 5 W

Direction indicators....................................... minilamps (can not be replaced)

Rear parking light/ number plate light/stoplight 12 V - 5 / 21 W

Revolution counter........................................ LED

Speedometer................................................ LED

Multifunction display ..................................... LED

A ............................................... NGK BR8ES

180 kPa (1.8 bar)

200 kPa (2.0 bar)

230 kPa (2.3 bar)

NGK R BR10EG

WARNING LIGHTS Neutral.......................................................... LED

Direction indicators....................................... LED

High beam .................................................... LED

General alarm............................................... LED

Fuel oil reserve ............................................ LED

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Page 78

LUBRICANT CHART

Gearbox fluid (reccomended): GEAR SYNTH, SAE 75W - 90. As an alternative to recommended oils, it is possible to use high-quality oils with characteristics in compliance with or superior to the A.P.I GL-4 specifications.

Mixer oil (reccomended): SPEED 2T.

As an alternative to recommended oils, top brand oils, fully synthetic, meeting or exceeding ISO -L-EGD or JASO FC or API TC specifications can be used.

Fork oil (reccomended): FORK 5W or FORK 20W. When you wish to obtain an intermediate response between those offered by FORK 5W and FORK 20W, oils, you may mix

the different products as follows:

SAE 10W = FORK 5W 67% du volume + FORK 20W 33% of the volume.

SAE 15W = FORK 5W 33% of the volume + FORK 20W 67% of the volume.

Bearings and other lubrication points (reccomended): GREASE 30. As an alternative to recommended grease, use top brand rolling bearing grease that will resist a temperature range of -30°C - +140°C, with

dropping point 150°C - 230°C, high corrosion protection, good resistance to water and oxidisation.

Protection of thr battery poles:

Spray grease for chains (reccomended): CHAIN LUBE.

neutral grease or Vaseline.

DANGER

Use new brake fluid only. Do not mix different makes or types of oil without having checked bases compatibility.

Brake fluid (reccomended): BRAKE FLUID DOT 4 PLUS.

DANGER

Use only nitrite-free anti-freeze and corrosion inhibitors with a freezing point of -35°C as a minimum.

Engine coolant(reccomended): ANTIFREEZE PLUS.

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Page 79

NOTE

ASK FOR GENUINE SPARE PARTS ONLY

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Page 80

Official Dealers and Service Centres

THE VALUE OF SERVICE

Thanks to ongoing technical updates and product-specific technical training, aprilia Authorised Network engineers are familiar with every detail of this vehicle and have the special equipment required for correct maintenance and repair.

A vehicle kept in sleek running order is a reliable vehicle. Pre-ride checks, proper maintenance at the recommended intervals and using aprilia Original Parts only are other key factors!

To find contact information of the Official Dealer and/or Service Centre nearest you, please consult the Yellow Pages or the map provided at our web site :

www.aprilia.com

When you demand aprilia Original Parts, you are purchasing products that have been developed and tested as early as the vehicle design stage. aprilia Original Parts systematically undergo strict quality control procedures to ensure total reliability and long service life.

Piaggio & C. S.p.A. wishes to thank its customers for the purchase of this vehicle. – Do not dispose of oil, fuel, polluting substances and components in the environment. – Do not keep the engine running if it isn’t necessary. – Avoid disturbing noises. – Respect nature.

use and maintenance RS 125

Aprilia RS 125, RS125 2009 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

SAFETY WARNINGS

TECHNICAL INFORMATION

BASIC SAFETY RULES

CLOTHING

ACCESSORIES

LOAD

ARRANGEMENT OF THE MAIN ELEMENTS

ARRANGEMENT OF THE INSTRUMENTS/CONTROLS

INSTRUMENTS AND INDICATORS

INSTRUMENTS AND INDICATORS TABLE

MULTIFUNCTION COMPUTER

MAIN INDEPENDENT CONTROLS

CONTROLS ON THE LEFT PART OF THE HANDLEBAR

CONTROLS ON THE RIGHT PART OF THE HANDLEBAR

IGNITION SWITCH

STEERING LOCK

AUXILIARY EQUIPMENT

GLOVE/TOOL KIT COMPARTMENT

MAIN COMPONENTS

FUEL

TRANSMISSION OIL

BRAKE FLUID-recommendations

DISC BRAKES

FRONT BRAKE

REAR BRAKE

2 STROKE OIL TANK

ADJUSTING THE SHIFTING LEVER

ADJUSTING THE REAR BRAKE

ADJUSTING THE CLUTCH

COOLANT

TYRES

CATALYTIC SILENCER

INSTRUCTIONS FOR USE

PRELIMINARY CHECKING OPERATIONS

STARTING

DEPARTURE AND DRIVE

RUNNING-IN

STOPPING

PAR K I N G

SUGGESTIONS TO PREVENT THEFT

MAINTENANCE

IDENTIFICATION DATA

FRONT WHEEL

REAR WHEEL

DRIVE CHAIN

REMOVING THE RIDER SADDLE

REMOVING THE SIDE FAIRINGS

REMOVING THE LOWER FAIRING

LIFTING THE FUEL TANK

AIR CLEANER

REAR SUSPENSION

CHECKING THE BRAKE PAD WEAR

IDLING ADJUSTMENT

ADJUSTING THE ACCELERATOR CONTROL

SPARK PLUGS

BATTERY

LONG INACTIVITY OF THE BATTERY

REMOVING THE BATTERY

CHECKING AND CLEANING THE TERMINALS

RECHARGING THE BATTERY

INSTALLING THE BATTERY

CHANGING THE FUSES

CHECKING THE SWITCHES

VERTICAL ADJUSTMENT OF THE HEADLIGHT BEAM

BULBS

CHANGING THE HEADLIGHT BULBS

CHANGING THE REAR LIGHT BULB

TRANSPORT

CLEANING

LONG PERIODS OF INACTIVITY

TECHNICAL DATA

LUBRICANT CHART

Official Dealers and Service Centres