Aprilia SR 125 1999, SR 50, SR 150 1999 User Manual
© 1999 aprilia s.p.a. - Noale (VE)
★
3!&%497!2.).'3
4%#(.)#!,
First edition: may 1999
Reprint: november 1999, march 2001
Produced and printed by:
editing division
Soave (VERONA) - Italy
Tel. +39 - 045 76 11 911
Fax +39 - 045 76 12 241
E-mail: customer@stp.it
www.stp.it
On behalf of:
aprilia s.p.a.
via G. Galilei, 1 - 30033 Noale (VE) - Italy
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
a
symbol on the vehicle or in the
manual, be careful to the potential risk
of personal injury. Non-compliance 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!
aWARNING
Indicates a potential hazard which may
result in serious injury or even death.
aCAUTION
Indicates a potential hazard which may
result in minor personal injury or damage to the vehicle.
NOTE The word “NOTE” in this manual
precedes important information or instructions.
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.
Any mention to the use of the vehicle
.
with passenger is to be intended as referred only to the countries where this is allowed.
In the text and figures the symbols
preceded by the symbol of the model
2
(
. +
indicated.
7!2.).'302%#!54)/.3
'%.%2!,!$6)#%
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.
) refer exclusively to the model
3 1
use and maintenance SR 50 - SR 125 - SR 150
2
NOTE 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.
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 inspec-
tions.
NOTE Soon after purchasing the vehi-
cle, write down the identification data indicated on the SPARE PARTS IDENTIFICATION LABEL in the table here below. The
label is stuck on the right beam of the
frame; to be able to read it, remove the
right inspection cover, see p. 55 (REMOVING THE RIGHT AND LEFT INSPECTION
COVERS).
In this manual the various versions are indicated by the following symbols:
50 cm# model
x
125 cm# model
z
150 cm# model
{
automatic light switching version
e
(Automatic Switch-on Device)
optional
m
liquid-cooled version
q
drum brake version
t
catalytic version
o
VERSION:
I
Italy
S
Singapore
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.
NOTE In some countries the antipollu-
tion and noise regulations in force require
periodical inspections.
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 Offi-
cial Dealer as reference data for the purchase of spare parts or specific accessories of the model you have acquired.
United Kingdom
U
Austria
a
Portugal
p
Finland
F
Belgium
B
Germany
d
France
f
Spain
E
Greece
G
Holland
O
Switzerland
Y
Denmark
D
Japan
J
Slovenia
s
Israel
i
South Korea
¬
Malaysia
M
Chile
c
Croatia
H
Australia
A
United States
u
of America
Brazil
Ä
South Africa
R
New Zealand
n
Canada
C
use and maintenance SR 50 - SR 125 - SR 150
3
4!",%/&#/.4%.43
SAFE DRIVE ...............................................................5
BASIC BASIC SAFETY RULES ...............................6
CLOTHING ...............................................................9
ACCESSORIES ......................................................10
LOAD ...................................................................... 10
ARRANGEMENT
OF TmHE MAIN ELEMENTS
ARRANGEMENT
OF THE MAIN ELEMENTS
ARRANGEMENT OF THE CONTROLS /
INSTRUMENTS AND INDICATORS.........................16
INSTRUMENT AND INDICATOR TABLE...............17
MAIN INDEPENDENT CONTROLS
CONTROLS ON THE LEFT SIDE
OF THE HANDLEBAR............................................18
CONTROLS ON THE RIGHT SIDE
OF THE HANDLEBAR............................................19
MAIN INDEPENDENT CONTROLS
CONTROLS ON THE LEFT SIDE
OF THE HANDLEBAR............................................20
CONTROLS ON THE RIGHT SIDE
OF THE HANDLEBAR............................................21
IGNITION SWITCH .................................................22
STEERING LOCK...................................................22
AUXILIARY EQUIPMENT .........................................23
UNLOCKING / LOCKING THE SADDLE................23
CRASH HELMET / GLOVE COMPARTMENT .......23
ANTI-THEFT HOOK ...............................................23
BATTERY / TOOL KIT COMPARTMENT...............24
BAG HOOK.............................................................24
REAR MUDGUARD EXTENSION ..........................24
..............................12
+.........................14
....................18
+............20
+ DIRECTION
INDICATOR EXTENSIONS ....................................24
MAIN COMPONENTS ...............................................25
FUEL.......................................................................25
LUBRICANTS ......................................................... 26
BRAKE FLUID - recommendations.........................27
DISC BRAKES........................................................28
REAR DRUM BRAKE .............................................29
. COOLANT 1 ................................................30
TYRES ....................................................................32
. AUTOMATIC
LIGHT SWITCHING VERSION
_ .......................33
+ AUTOMATIC
LIGHT SWITCHING VERSION
_ .......................33
CATALYTIC SILENCER
EXHAUST SILENCER ............................................34
INSTRUCTIONS FOR USE .......................................35
PRELIMINARY CHECKING OPERATIONS ...........35
STARTING ..............................................................36
DEPARTURE AND DRIVE .....................................38
2 ..................................34
. RUNNING-IN ...................................................40
+ RUNNING-IN ............................................40
STOPPING .............................................................41
PARKING ................................................................41
POSITIONING THE VEHICLE
ON THE STAND .....................................................42
SUGGESTIONS TO PREVENT THEFT .................42
MAINTENANCE ........................................................43
REGULAR SERVICE
INTERVALS CHART
REGULAR SERVICE
INTERVALS CHART
IDENTIFICATION DATA.........................................48
................................... 44-45
+............................ 46-47
. AIR CLEANER .................................................49
+ AIR CLEANER ..........................................50
CHECKING THE BRAKE PAD WEAR....................51
CHECKING THE SHOE WEAR ..............................51
CHECKING THE STEERING..................................52
CHECKING THE ENGINE FULCRUM AXIS ..........52
REMOVING
THE COVER SUPPORT ELEMENT.......................53
REMOVING THE FRONT COVER .........................53
REMOVING
THE LOWER HANDLEBAR COVER ......................54
PARTIAL REMOVAL
OF THE UPPER HANDLEBAR COVER.................54
REMOVING THE RIGHT
AND LEFT INSPECTION COVERS........................55
. INSTALLING
THE REAR MUDGUARD EXTENSION ..................56
+ REMOVING
THE NUMBER PLATE SUPPORT..........................56
+ INSTALLING
THE REAR MUDGUARD EXTENSION ..................57
+ REMOVING
THE WHOLE DIRECTION INDICATOR .................58
+ INSTALLING
THE DIRECTION INDICATOR EXTENSIONS .......58
. REMOVING THE LOWER SHIELD COVER ...59
REMOVING THE FRONT INNER SHIELD ............ 60
REMOVING THE REAR-VIEW MIRRORS ............ 61
CHECKING THE STAND ....................................... 61
CHECKING THE SWITCHES ................................ 61
. IDLING ADJUSTMENT ................................... 62
+ IDLING ADJUSTMENT ............................ 63
ADJUSTING THE ACCELERATOR CONTROL .... 63
SPARK PLUG ........................................................ 64
BATTERY............................................................... 65
LONG INACTIVITY OF THE BATTERY ................ 65
CHECKING AND CLEANING THE TERMINALS .. 66
REMOVING THE BATTERY.................................. 66
INSTALLING THE BATTERY ................................ 67
. CHECKING THE ELECTROLYTE LEVEL...... 67
. RECHARGING THE BATTERY ...................... 68
+ RECHARGING THE BATTERY ............... 68
CHANGING THE FUSES....................................... 69
ADJUSTING
THE VERTICAL HEADLIGHT BEAM..................... 70
BULBS ................................................................... 70
. CHANGING THE HEADLIGHT BULBS .......... 71
. CHANGING THE HEADLIGHT BULBS
C % K - _............................................. 71
+ CHANGING THE HEADLIGHT BULBS ... 72
CHANGING THE FRONT
DIRECTION INDICATOR BULBS .......................... 73
CHANGING THE REAR
DIRECTION INDICATOR BULBS .......................... 73
CHANGING THE DASHBOARD BULBS ............... 74
CHANGING THE REAR LIGHT BULB................... 75
CHANGING THE NUMBER PLATE BULB ............ 75
TRANSPORT............................................................ 76
DRAINING THE FUEL TANK ................................. 76
CLEANING ............................................................... 77
LONG PERIODS OF INACTIVITY ......................... 78
TECHNICAL DATA .................................................. 79
LUBRICANT CHART ...................................... 84
.
+
Importers ........................................................... 86-87
WIRING DIAGRAM - SR 50 ................................... 88
WIRING DIAGRAM - SR 50
WIRING DIAGRAM - SR 50
WIRING DIAGRAM - SR 125 - SR 150.................. 94
WIRING DIAGRAM - SR 125 - SR 150
LUBRICANT CHART ............................... 85
........... 96
J
....... 90
C % K _
............................ 92
-
use and maintenance SR 50 - SR 125 - SR 150
4
safe drive
"!3)#"!3)#3!&%4925,%3
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.
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.
use and maintenance SR 50 - SR 125 - SR 150
6
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 keep both hands on the handlebars
and both feet on the footboard (or on the
footrests), in the correct driving posture.
Avoid standing up or stretching your limbs
while driving.
use and maintenance SR 50 - SR 125 - SR 150
7
OIL
COOLER
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 all 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 care-
fully 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.
For only vehicles up to 50 cm3 included
Any modification of the engine or of other
members which is aimed at increasing the
speed or the power of the vehicle is prohibited by the law; in fact, any modification resulting in an increase of the maximum
speed or of the engine displacement would
change the scooter into a motorcycle,
use and maintenance SR 50 - SR 125 - SR 150
8
A
ONLY ORIGINALS
2
1
5
4
3
which implies the following obligations for
the owner:
– new homologation;
– new registration;
– appropriate driving license.
Further, said modifications cause the loss
of the insurance cover, since insurance
policies expressly prohibit to make technical changes aimed at increasing the vehicle performance levels.
For the reasons stated above, the failure to
comply with the tampering prohibition is
punished by law with appropriate sanctions
(including the confiscation of the vehicle),
which, according to the case, can be combined with the sanctions provided for not
using the crash helmet and/or the number
plate, for the violation of fiscal obligations
(ownership tax) and with penal sanctions
provided for using the vehicle without driving license.
For only vehicles over 50 cm
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.
3
#,/4().'
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.
use and maintenance SR 50 - SR 125 - SR 150
9
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).
!##%33/2)%3
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.
Big fairings and windshields installed on
the vehicle may produce aerodynamic forces that affect the stability of the vehicle, especially when riding at high speed.
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 “aprilia
genuine accessories”.
,/!$
Be careful and moderate when loading
your luggage. Keep any luggage loaded as
close as possible to the center of gravity 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.
use and maintenance SR 50 - SR 125 - SR 150
10
KG!
Avoid hanging bulky, heavy and/or dangerous objects on the handlebars, mudguards
and forks: 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, because they 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 luggagerack.
Do not exceed the maximum load allowed
for each side-bag.
When the vehicle is overloaded, its stability
and its manoeuvrability can be compromised.
use and maintenance SR 50 - SR 125 - SR 150
11
!22!.'%-%.4/&4(%-!).%,%-%.43
.
+%9
1) Coolant expansion tank plug
2) Bag hook
3) Battery/tool kit compartment cover
4) Fuel tank
5) Fuel tank plug
use and maintenance SR 50 - SR 125 - SR 150
12
1
6) Saddle lock
7) Kick starter
8) Air cleaner
9) Left inspection cover
+%9
1) 2 stroke oil tank plug
2) 2 stroke oil tank
3) Ignition switch/steering lock
4) Right inspection cover
5) Fuse carrier
6) Horn
7) Battery
8) Lower shield cover
9) Anti-theft hook (for the aprilia “Body-
Guard” armored cable
10) Centre stand
&).
use and maintenance SR 50 - SR 125 - SR 150
13
!22!.'%-%.4/&4(%-!).%,%-%.43
+
+%9
1) Bag hook
2) Battery/tool kit compartment cover
3) Fuel tank
4) Fuel tank plug
5) Saddle lock
use and maintenance SR 50 - SR 125 - SR 150
14
6) Air cleaner
7) Kick starter
8) Passenger left footrest
9) Fuse carrier
10) Left inspection cover
+%9
1) 2 stroke oil tank plug
2) 2 stroke oil tank
3) Crash helmet / glove compartment
4) Ignition switch/steering lock
5) Right inspection cover
6) Brake fluid reservoir (front brake)
7) Horn
8) Battery
9) Spark plug
10) Anti-theft hook (for the aprilia “Body-
Guard” armored cable
11) Centre stand
12) Passenger right footrest
&).
use and maintenance SR 50 - SR 125 - SR 150
15
!22!.'%-%.4/&4(%#/.42/,3 ). 34 25- %.4 3 !.$ ). $) #!4 /2 3
+%9
1) Electrical controls on the left side of the handlebar
2) Rear brake lever
3) Left rear-view mirror
4) Instruments and indicators
5) Right rear-view mirror
6) Throttle grip
7) Front brake lever
8) Electrical controls on the right side of the handlebar
9) Ignition switch/steering lock (
use and maintenance SR 50 - SR 125 - SR 150
16
n - m - s)
10) Fuel level indicator (
11) Speedometer
12) Total kilometres odometer
13)
14) Green direction indicator warning light (c)
15) Red 2 stroke oil reserve warning light (
16)
16a)
17)
18) Amber low fuel warning light (
Coolant temperature indicator (h)
.
Green low beam warning light (b)
.
Blue high beam warning light (a) C % K - _
.
+
Blue high beam warning light (a)
g)
1
j)
g)
).3425-%.4!.$).$)#!4/24!",%
Description Function
Direction indicator warning light (
2 stroke oil reserve warning light (
Total kilometres odometer It indicates the total number of kilometres covered.
Speedometer It indicates the driving speed.
Low beam warning light (
.
High beam warning light
.
C % K - _
+
Low fuel warning light (
High beam warning light (a) It comes on when the headlight in high beam position.
c) It blinks when the direction indicators are on.
It comes on when the ignition switch is in position “
“
r“ is pressed, thus checking the proper functioning of the bulb.
If the light does not come on during the starting, provide for replacing the bulb.
j)
aCAUTION
or if it comes on during normal functioning, this means that the 2 stroke
oil reserve is being used; in this case, top up the 2 stroke oil tank, see
p. 26 (2 STROKE OIL).
If the warning light comes on and does not go out
after the start push button “
b) It comes on when the headlight is in low beam position.
(a)
It comes on when the headlight in high beam position.
g) It comes on when the quantity of fuel left in the tank is about 2 L.
n” and the start push button
r” has been released,
Fuel level indicator (
Coolant temperature indicator
.
1
g) It indicates the approximate fuel level in the tank.
It indicates the approximate temperature of the coolant in the engine.
When the pointer starts moving beyond the “min” level, the temperature is sufficient for driving the vehicle.
The normal running temperature range is indicated by the central area of the
(h)
scale.
If the pointer reaches the red area, stop the engine and check the coolant level,
see p. 30 (
aCAUTION
COOLANT 1).
.
If the maximum allowed temperature is exceeded
(red area “max” of the scale), the engine may be
seriously damaged.
use and maintenance SR 50 - SR 125 - SR 150
17
-!).).$%0%.$%.4#/.42/,3
.
#/.42/,3/.4(%,%&43)$%/&4(%(!.$,%"!2
NOTE The electrical parts work only when the ignition switch
is in position “
n”.
NOTE The lighting system works only when the engine is run-
ning.
1) HORN PUSH BUTTON (
The horn is activated when the push button is pressed.
2) COLD START LEVER (
The starter for the cold start of the engine is operated by rotating the lever downwards.
To disconnect the cold start, bring the lever to its initial position.
3) DIRECTION INDICATOR SWITCH (
To indicate the turn to the left, move the switch to the left; to
indicate the turn to the right, move the switch to the right.
To turn off the direction indicator, press the switch.
4) DIMMER SWITCH (
(in the countries where the engine stop switch is required
m - n”)
“
When it is in position “
light and the low beam are always on.
When it is in position “
f)
e)
c)
a - b )
b” the parking lights, the dashboard
a”, the high beam comes on.
use and maintenance SR 50 - SR 125 - SR 150
18
NOTE The lights can be switched off only by stopping the
engine.
#/.42/,3/.4(%2)'(43)$%
/&4(%(!.$,%"!2
NOTE The electrical parts work only when the ignition switch
is in position “
n”.
NOTE The lighting system works only when the engine is run-
ning.
1) LIGHT SWITCH (
When the light switch is in position “
the switch is in position “
beam are on.
1a) LIGHT SWITCH (
When the light switch is in position “•”, the lights are off;
when the switch is in position “
parking lights are on; when it is in position “
beam and the parking lights are on.
1b) DIMMER SWITCH (
(not provided for those countries where the engine
stop switch “
When the dimmer switch is in position “
and the parking lights are on; when it is in position “
high beam and the parking lights are on.
b -
m - n” is required)
) (
•
not provided)
_
•
”, the lights are off; when
b”, the rear parking light and the low
a - b -
) C % K
•
b” the low beam and the
a” the high
a - b )
_
b”, the low beam
a”, the
NOTE The lights can be switched off only by stopping the
engine.
1c) ENGINE STOP SWITCH (
(in the countries where required)
n - m)
aCAUTION
Do not operate the engine stop switch “n - m” in running
conditions.
This is a safety or emergency switch. With the switch in position “
be stopped by moving the switch to position “
n”, it is possible to start the engine; the engine can
m”.
aCAUTION
With stopped engine and ignition switch in position “n”,
the battery may run down.
When the vehicle has come to a halt, stop the engine, and
move the ignition switch to position “
2) START PUSH BUTTON (
When the start push button is pressed and one of the brake
levers (front or rear) is activated at the same time, the starter
makes the engine run.
For the starting procedure, see p. 36 (STARTING).
r)
m”.
use and maintenance SR 50 - SR 125 - SR 150
19
-!).).$%0%.$%.4#/.42/,3
+
#/.42/,3/.4(%,%&43)$%/&4(%(!.$,%"!2
NOTE The electrical parts work only when the ignition switch
is in position “
n”.
1) HORN PUSH BUTTON (
The horn is activated when the push button is pressed.
2) DIMMER SWITCH (
When the light switch is in position “
is in position “
sition “
3) DIRECTION INDICATOR SWITCH (
To indicate the turn to the left, move the switch to the left; to
indicate the turn to the right, move the switch to the right.
To turn off the direction indicator, press the switch.
b”, the low beam comes on.
a”, the high beam comes on, while if it is in po-
f)
a - b ) (
not provided)
_
o”: if the dimmer switch
c)
use and maintenance SR 50 - SR 125 - SR 150
20
#/.42/,3/.4(%2)'(43)$%
/&4(%(!.$,%"!2
NOTE The electrical parts work only when the ignition switch
is in position “
n”.
1) LIGHT SWITCH (
o - p -
) (J not provided)
•
NOTE Before operating the light switch, make sure that the
dimmer switch (
When the light switch is in position “
the switch is in position “
board light are on; when the switch is in position “
parking lights, the dashboard light and the low beam are on.
The high beam can be operated by means of the dimmer
switch (
1a) DIMMER SWITCH (
When it is in position “b ” the parking lights, the dashboard
light and the low beam are always on.
When it is in position “
2) START PUSH BUTTON (
When the start push button is pressed and one of the brake
levers (front or rear) is activated at the same time, the starter
makes the engine run.
For the starting procedure, see p. 36 (STARTING).
a - b).
a - b ) is in position “ b”.
”, the lights are off; when
•
p”, the parking lights and the dash-
a - b )
_
a”, the high beam comes on.
r)
o”, the
use and maintenance SR 50 - SR 125 - SR 150
21
Position Function
Key
removal
)'.)4)/.37)4#(
The ignition switch is positioned on the
right side, near the steering column.
NOTE The key (1) operates the igni-
tion/steering lock switch, the battery/tool kit
compartment lock and the saddle lock.
Two keys are supplied together with the
vehicle (one spare key).
NOTE Do not keep the spare key on the
vehicle.
34%%2).',/#+
aWARNING
Never turn the key to position “s” in
running conditions, in order to avoid
losing control of the vehicle.
OPERATION
To lock the steering:
◆
Turn the handlebar completely leftwards.
◆
Turn the key (1) to position “m” and
press it.
◆
Release the key.
s
Steering
lock
m
n
The steering
is locked.
It is neither
possible to
start the engine, nor to
switch on the
lights.
Neither the
engine, nor
the lights can
be switched
on.
The engine
and the lights
can be
switched on.
It is possible
to remove
the key.
It is possible
to remove
the key.
It is not possible to remove the
key.
use and maintenance SR 50 - SR 125 - SR 150
22
NOTE Turn the key and steer the han-
dlebar at the same time.
◆
Rotate the key (1) anticlockwise (leftwards), steer the handlebar slowly until
the key (1) reaches position “
◆
Extract the key.
s”.
!58),)!29%15)0-%.4
5.,/#+).',/#+).'
4(%3!$$,%
To unlock and lift the saddle:
◆
Position the vehicle on the stand.
◆
Insert the key in the saddle lock (1).
◆
Turn the key clockwise and raise the
saddle (2).
NOTE Before lowering and locking the
saddle, make sure that you have not left
the key in the crash helmet / glove compartment.
◆
To lock the saddle, lower and press it
(without exerting too much pressure),
thus making the lock snap shut.
aWARNING
Before leaving, make sure that the saddle is properly locked.
#2!3((%,-%4',/6%
#/-0!24-%.4
Thanks to the crash helmet/glove compartment, you no longer have to carry the
crash helmet or other objects with you every time you park the vehicle. The compartment is positioned under the saddle.
To reach it:
◆
Raise the saddle (2), see beside (UNLOCKING / LOCKING THE SADDLE).
NOTE Position the helmet with the
opening facing downwards, as indicated in
the figure.
aWARNING
Do not load the crash helmet / glove
compartment too much.
Maximum allowed weight: 2.5 kg.
!.4)4(%&4(//+
The anti-theft hook (3) is positioned on the
right side of the vehicle, near the rider’s
footboard.
To prevent the vehicle from being stolen, it
is advisable to secure it with the aprilia
“Body-Guard” armored cable
able at any aprilia Official Dealer.
(4), avail-
&
aWARNING
Do not use the hook to lift the vehicle or
for any purpose other than securing the
vehicle once it has been parked.
use and maintenance SR 50 - SR 125 - SR 150
23
"!44%294//,+)4
#/-0!24-%.4
This compartment is positioned in the lower part of the vehicle, between the footrests.
To reach it, proceed as follows:
◆
Insert the key (1) in the lock.
◆
Rotate the key (1) clockwise, pull it and
remove the cover (2).
The tool kit (3) includes:
– n. 1 tool case
– n. 1 21 mm spark plug socket spanner
– n. 1 socket spanner rod
– n. 1 double-ended, cross-/cut headed-
screwdriver type PH size 2
– n. 1 screwdriver handle
– n. 1
– n. 1
. 4 mm hexagon spanner
. 8/10 mm socket spanner
"!'(//+
aWARNING
Do not hang excessively bulky bags or
parcels to the hook, as this may seriously compromise the manoeuvrability of
the vehicle or the movement of your feet.
The bag hook (4) is positioned on the front
part of the inner shield.
Max. allowed weight: 1.5 kg.
2%!2-5$'5!2$%84%.3)/.
The rear mudguard extension (5) is provided as standard equipment and can be installed if the vehicle is used on wet roads,
since it reduces the reach of the water
spray caused by the rear wheel.
NOTE The rear mudguard extension (5),
complete with screws and relevant nuts, is
supplied as standard equipment and is
housed in the crash helmet/glove compartment.
For the installation, see p. 56 (
ING THE REAR MUDGUARD EXTENSION), see p. 57 (
THE REAR MUDGUARD EXTENSION).
+
%84%.3)/.3
In the countries where the number plate
size is 280x280 mm, it is necessary to install appropriate extensions (6) for the direction indicators.
$)2%#4)/.).$)#!4/2
+
INSTALL-
.
INSTALLING
NOTE The direction indicator extensions
(6), complete with nuts and screws, are
supplied as standard equipment and are
housed in the crash helmet/glove compartment.
For the installation, see p. 58 (
STALLING THE DIRECTION INDICATOR
EXTENSIONS).
+
IN-
use and maintenance SR 50 - SR 125 - SR 150
24
-!).#/-0/.%.43
&5%,
aWARNING
The fuel used for internal combustion
engines is extremely inflammable and
in 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 is completely dry before starting the vehicle.
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 cap 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.
DO NOT DISPOSE OF FUEL IN THE ENVIRONMENT.
KEEP AWAY FROM CHILDREN.
.
Use only premium grade petrol (4 Stars
), in conformity with the DIN 51600
U
standard, min. O.N. 98 (N.O.R.M.) and 88
(N.O.M.M.).
2 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.).
+
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): 8
TANK RESERVE: 2 L
To refuel, proceed as follows:
◆
Position the vehicle on the centre stand.
◆
Lift the saddle, see p. 23 (UNLOCKING /
LOCKING THE SADDLE).
◆
Unscrew and remove the fuel tank plug
(1).
◆
Refuel.
L
aWARNING
After refuelling, put back the cap (1) in
the correct position.
◆
Put back the cap (1).
use and maintenance SR 50 - SR 125 - SR 150
25
,5"2)#!.43
aWARNING
Oil can cause serious damage to the
skin if handled every day and for long
periods.
Wash your hands carefully after using
oil.
In case any maintenance operation has
to be carried out, it is advisable to use
latex gloves.
KEEP AWAY FROM CHILDREN.
DO NOT DISPOSE OF OIL IN THE ENVIRONMENT.
aCAUTION
Proceed with care.
Do not spill the oil!
Take care not to smear any component,
the area in which you are working and
the surrounding area.
Carefully remove any trace of oil.
aCAUTION
In case of leakages or malfunctions,
contact an APRILIA Official Dealer.
2 STROKE OIL
Top up the 2 stroke oil tank every 500 km
(312 mi).
The vehicle is provided with a separate
mixer that makes it possible to mix petrol
with oil for the lubrication of the engine, see
p. 84 (x LUBRICANT CHART) or p. 85
(z { LUBRICANT CHART).
The reserve is indicated by the coming on of
the 2 stroke oil reserve warning light “
positioned on the dashboard, see p. 16 and
17 (ARRANGEMENT OF THE CONTROLS
/ INSTRUMENTS AND INDICATORS).
j”
aCAUTION
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 2 stroke oil pipe has been
removed, it is necessary to contact an
APRILIA Official Dealer, who will provide
for bleeding the system.
This operation is indispensable, since
the operation of the engine with air in
the 2 stroke oil system may cause serious damages to the engine itself.
To top up the 2 stroke oil tank, proceed as
follows:
◆
Position the vehicle on the centre stand.
◆
Lift the saddle, see p. 23 (UNLOCKING /
LOCKING THE SADDLE).
◆
Remove the plug (1).
2 STROKE OIL TANK CAPACITY: 1.6
TANK RESERVE: 0.5 L
◆
Top up the 2 stroke oil tank.
L
aWARNING
After refuelling, put back the cap (1) in
the correct position.
◆
Put back the cap (1).
use and maintenance SR 50 - SR 125 - SR 150
26
TRANSMISSION OIL
.
Have the transmission oil level checked
every 4000 km (2500 mi), or every 12
months.
It is necessary to have the transmission oil
changed after the first 500 km (312 mi) and
successively every 12000 km (7500 mi), or
every 2 years.
To check the oil level and to change the oil,
contact an aprilia Official Dealer.
+
Have the transmission oil level checked
every 4000 km (2500 mi), or every 12
months.
It is necessary to have the transmission oil
changed after the first 1000km (625 mi)
and successively every 12000 km (7500
mi), or every 24 months.
To check the oil level and to change the oil,
contact an aprilia Official Dealer.
TRANSMISSION OIL
"2!+%&,5)$RECOMMENDATIONS
aWARNING
Sudden resistance or clearance problems on the brake lever may be due to
troubles in the 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.
aWARNING
Pay special attention to the brake disc
and friction material, making sure that
they are neither dirty nor oily, especially
after maintenance operations or inspections.
Make sure that the brake pipe is neither
twisted nor worn out.
KEEP AWAY FROM CHILDREN.
DO NOT DISPOSE OF THE FLUID IN
THE ENVIRONMENT.
use and maintenance SR 50 - SR 125 - SR 150
27
$)3#"2!+%3
aWARNING
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.
A dirty disc soils the pads, with consequent reduction of the braking efficiency. Dirty pads must be replaced, while
dirty discs must be cleaned with a highquality degreaser.
The brake fluid must be changed every
two years by an APRILIA Official Dealer.
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.
This vehicle is provided with hydraulic disc
brakes.
NOTE For the version with rear drum
brake
to the front disc brake only.
When the disc pads wear out, the level of
the fluid decreases to automatically compensate for their wear.
, the following information refers
3
The brake fluid reservoir (1) is positioned
near the front brake lever coupling. Periodically check the brake fluid level in the reservoir (1) and the pad wear, see p. 51
(CHECKING THE BRAKE PAD WEAR).
aWARNING
Do not use the vehicle if the braking
system leaks fluid.
CHECKING
To check the brake fluid level, proceed as
follows:
NOTE Position the vehicle on firm and
flat ground.
MIN = minimum level.
◆
Position the vehicle on the centre stand.
◆
Rotate the handlebar, so that the fluid
contained in the brake reservoir is parallel to the “MIN” mark stamped on the
glass gauge (2).
◆
Make sure that the fluid contained in the
reservoir exceeds the “MIN” mark
stamped on the glass gauge (2).
If the fluid does not reach at least the “MIN”
mark:
aCAUTION
When the disc pads wear out, the level
of the fluid decreases progressively to
compensate for their wear.
◆
Check the brake pad wear, see p. 51
(CHECKING THE BRAKE PAD WEAR)
and the disc wear.
If the pads and / or the disc do not need replacing:
◆
Contact an aprilia Official Dealer, who
will provide for topping up.
aCAUTION
Check the braking efficiency.
In case of excessive stroke of the brake
lever or reduced efficiency of the braking system, contact an APRILIA Official
Dealer, since it may be necessary to
bleed the system.
use and maintenance SR 50 - SR 125 - SR 150
28
2%!2$25-"2!+%
aWARNING
The brakes are the parts that most ensure your safety and for this reason
they must always be perfectly working.
For any doubt regarding the perfect
functioning of the braking system and
in case you are not able to carry out the
usual checking opAerations, contact
your APRILIA Official Dealer.
ADJUSTING THE BRAKE
◆
Measure the distance covered by the lever before the brake starts it braking action. The idle stroke at the end of the
brake lever must be about 10 mm.
To adjust the clearance, proceed as follows:
◆
Act on the adjuster (1).
◆
Put on the brake repeatedly and make
sure that the wheel turns freely after the
brake has been released.
◆
Check the braking efficiency.
aWARNING
If the adjuster (1) can be screwed up
completely, this means that the brake
shoes are worn out.
In this case, see p. 51 (CHECKING THE
SHOE WEAR).
NOTE The heating of the brake shoes
caused by the braking action may modify
the clearance between the friction material
and the drum. For this reason, it is advisable to check the clearance even with the
shoes at operating temperature.
◆
Carry out a trial run operating the rear
brake two or three times.
aWARNING
Carry out this check with the engine at
rest.
◆
Stop the vehicle, see p. 41 (STOPPING).
◆
. Move the engine stop switch (2) to
position “
quired).
◆
Rotate the key (3) and move the ignition
switch (4) to position “
◆
Position the vehicle on the centrestand.
◆
Make sure that the wheel turns freely.
If necessary:
m” (for the countries where re-
m”.
aWARNING
When the engine is hot, be careful not
to burn yourself while carrying out the
following operations.
◆
Loosen the adjuster (1), making sure that
the wheel turns freely.
use and maintenance SR 50 - SR 125 - SR 150
29
#//,!.4
.
1
aCAUTION
Do not use the vehicle if the coolant is
below the minimum prescribed level
“MIN”.
Check the coolant level every 2000 km
(1250 mi) and after long trips; have the
coolant changed by an aprilia Official
Dealer every 2 years.
aWARNING
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 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.
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°C,
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.
aWARNING
Do not remove the expansion tank cap
(1) when the engine is hot, since the
coolant is under pressure and its temperature is high.
If it gets in contact with the skin or with
clothes it may cause severe burns
and/or damage.
Have the coolant changed by an APRILIA
Official Dealer.
use and maintenance SR 50 - SR 125 - SR 150
30
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