APRILIA SR MAX 125 ie Guide

SERVICE STATION MANUAL
677506 EN
SR MAX 125 ie

SERVICE STATION
MANUAL
SR MAX 125 ie
THE VALUE OF SERVICE
As a result of continuous updates and specific technical training programmes for Aprilia products, only
Aprilia Official Network mechanics know this vehicle fully and have the specific tools necessary to carry
out maintenance and repair operations correctly.
Thereliabilityofthevehiclealsodependsonitsmechanicalconditions.Checkingthevehiclebeforeriding
it, its regular maintenance and the use of original Aprilia spare parts only are essential factors!
For information on the nearest Official Dealer and/or Service Centre consult our website:
www.aprilia.com
Only by requesting aprilia original spare parts can you be sure of purchasing products that were
developed and tested during the actual vehicle design stage. All aprilia original spare parts undergo
quality control procedures to guarantee reliability and durability.
Thedescriptionsandimagesinthispublicationaregivenforillustrativepurposesonlyandarenotbinding.
While the basic characteristics as described and illustrated in this booklet remain unchanged, Piaggio &
C.S.p.A. reservesthe right,at anytime andwithout beingrequired toupdate thispublication beforehand,
to make any changes to components, parts or accessories, which it considers necessary to improve the
product or which are required for manufacturing or construction reasons.
Notallversions/modelsshowninthispublicationareavailableinallcountries.Theavailabilityofindividual
models should be confirmed with the official aprilia sales network.
The Aprilia trademark is the property of Piaggio & C. S.p.A.
© Copyright 2012 - Piaggio & C. S.p.A. All rights reserved. Reproduction of this publication in whole or
in part is prohibited.
Piaggio & C. S.p.A. Viale Rinaldo Piaggio, 25 - 56025 PONTEDERA (PI), Italy
www.piaggio.com

SERVICE STATION MANUAL
SR MAX 125 ie
This manual provides the main information to carry out regular maintenance operations on your vehicle.
This manual is intended to aprilia Dealers and their qualified mechanics; several concepts have been
deliberately omitted as they are considered unnecessary. As it is not possible to include complete
mechanical notions in this manual, users should have basic mechanical knowledge or minimum
knowledge about the procedures involved when repairing scooters. Without this knowledge, repairing or
checking the vehicle may be inefficient or even dangerous. As the vehicle repair and check procedures
are not described in detail, be extremely cautious so as not to damage components or injure individuals.
In order to optimise customer satisfaction when using our vehicles, Piaggio & C. S.p.a. commits itself
to continually improve its products and the relative documentation. The main technical modifications and
changes in repair procedures are communicated to all Aprilia Sales Outlets and its International
Subsidiaries. These changes will be introduced in the subsequent editions of the manual. In case of
need or further queries on repair and check procedures, consult Aprilia CUSTOMER DEPARTMENT,
which will be prepared to provide any information on the subject and any further communications on
updates and technical changes related to the vehicle
NOTE Provides key information to make the procedure easier to understand and carry out.
CAUTION Refers to specific procedures to carry out for preventing damages to the vehicle.
WARNING Refers to specific procedures to carry out to prevent injuries to the repairer.
Personal safety Failure to completely observe these instructions will result in serious risk of personal
injury.
Safeguarding the environment Sectionsmarked with thissymbol indicatethe correctuse of thevehicle
to prevent damaging the environment.
Vehicle intactness The incomplete or non-observance of these regulations leads to the risk of serious
damage to the vehicle and sometimes even the invalidity of the guarantee

INDEX OF TOPICS
CHARACTERISTICS CHAR
TOOLING TOOL
MAINTENANCE MAIN
TROUBLESHOOTING TROUBL
ELECTRICAL SYSTEM ELE SYS
ENGINE FROM VEHICLE ENG VE
ENGINE ENG
INJECTION INJEC
SUSPENSIONS SUSP
BRAKING SYSTEM BRAK SYS
COOLING SYSTEM COOL SYS
CHASSIS CHAS
PRE-DELIVERY PRE DE

INDEX OF TOPICS
CHARACTERISTICS CHAR

This section describes the general specifications of the vehicle.
Rules
This section describes general safety rules for any maintenance operations performed on the vehicle.
Safety rules
- If work can only be done on the vehicle with the engine running, make sure that the premises are well-
ventilated, using special extractors if necessary; never let the engine run in an enclosed area. Exhaust
fumes are toxic.
- The battery electrolyte contains sulphuric acid. Protect your eyes, clothes and skin. Sulphuric acid is
highly corrosive; in the event of contact with your eyes or skin, rinse thoroughly with abundant water
and seek immediate medical attention.
- The battery produces hydrogen, a gas that can be highly explosive. Do not smoke and avoid sparks
or flames near the battery, especially when charging it.
- Fuel is highly flammable and it can be explosive given some conditions. Do not smoke in the working
area, and avoid naked flames or sparks.
- Clean the brake pads in a well-ventilated area, directing the jet of compressed air in such a way that
you do not breathe in the dust produced by the wear of the friction material. Even though the latter
contains no asbestos, inhaling dust is harmful.
Maintenance rules
- Use original APRILIA spare parts and lubricants recommended by the Manufacturer. Non-original or
non-conforming spare parts may damage the vehicle.
- Use only the appropriate tools designed for this vehicle.
- Always use new gaskets, sealing rings and split pins upon refitting.
- After removal, clean the components using non-flammable or low flash-point solvents. Lubricate all
the work surfaces, except tapered couplings, before refitting these parts.
- After refitting, make sure that all the components have been installed correctly and work properly.
- For removal, overhaul and refit operations use only tools with metric measures. Metric bolts, nuts and
screws are not interchangeable with coupling members with English measurement. Using unsuitable
coupling members and tools may damage the vehicle.
- When carrying out maintenance operations on the vehicle that involve the electrical system, make
suretheelectricconnectionshavebeenmadeproperly,particularlythe ground andbattery connections.
SR MAX 125 ie Characteristics
CHAR - 7

Vehicle identification
To read the chassis prefix, lift the saddle and re-
move the lid «A».
Theengineprefix«B» isstampedneartherear left
shock absorber lower support.
VEHICLE IDENTIFICATION
Specification Desc./Quantity
Chassis prefix M35700
ENGINE PREFIX M357M
Characteristics SR MAX 125 ie
CHAR - 8

Dimensions and mass
WEIGHTS AND DIMENSIONS
Specification Desc./Quantity
Kerb weight 169 ± 5 kg
Maximum weight allowed 370 Kg
Maximum height 1.400 mm
Width 780 mm
Wheelbase 1.515 mm
Maximum length 2,110 mm
Engine
ENGINE
Specification Desc./Quantity
Type Single-cylinder, 4-stroke with double spark plug
Engine capacity 124 cm³
Bore x stroke 57.0 x 48.6 mm
Compression ratio 11.5 ± 13.0: 1
Engine idle speed 1,750 ± 50 rpm
Valve clearance Intake: 0.10 mm Exhaust: 0.15 mm
Max. power 11.0 kW at 9,500 rpm
MAX. torque 12.0 Nm at 8000 rpm
Lubrication With lobe pump (inside crankcase) controlled by a chain with
double filter: mesh and paper
Lubrication pressure 3 ÷ 4 bar
Minimum lubrication pressure (90° C) 0.6 ÷ 1.2 bar
SR MAX 125 ie Characteristics
CHAR - 9

Specification Desc./Quantity
Fuel system 32MIU2.E0ElectronicinjectionwithØ 32-mmthrottlebodyand
electric fuel pump.
Cooling Forced-circulation coolant with electric pump commanded by
the control unit.
Fuel Unleaded petrol (95 RON)
Transmission
TRANSMISSION
Specification Desc./Quantity
Transmission Automatic expandable pulley variator with torque server, V-
belt, self-ventilating dry automatic centrifugal clutch and trans-
mission housing with forced-circulation air cooling.
Final reduction gear Gear reduction unit in oil bath.
Capacities
CAPACITY
Specification Desc./Quantity
Engine oil 1.30 l
Transmission oil 250 cm³
Cooling system fluid 1.75 l
Fuel tank (reserve) approx.15.00 l (approx. 2.80 l)
Electrical system
ELECTRICAL SYSTEM
Specification Desc./Quantity
Starter Electric
Ignition Electronic inductive discharge ignition, high efficiency, with
separate HV coil.
Ignition advance α/N three-dimensional map managed by control unit
Spark plug NGK CR8EKB
Battery Sealed, 12 V / 12 Ah
Alternator alternating current
Frame and suspensions
CHASSIS AND SUSPENSIONS
Specification Desc./Quantity
Chassis Tubular and steel sheets.
Front suspension Hydraulic telescopic fork with Ø 35-mm stem
Front suspension travel 104 mm
Rear suspension Two double-acting shock absorbers with preloading adjust-
ment in 4 positions.
Rear suspension travel 95.5 mm
Characteristics SR MAX 125 ie
CHAR - 10