APRILIA SR 50 - 2001 Manual
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APRILIA SR 50 - 2001 Manual

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Summary of Contents for APRILIA SR 50 - 2001

  • Page 1 use and maintenance SR 50...
  • Page 2 © 2001 aprilia s.p.a. - Noale (VE) FOREWORD INTRODUCTION NOTE This manual is divided into sections, chapters This manual is an important and and paragraphs, by subject. The procedures saman integral part of your vehicle. Keep it with described are laid out in single operation, your vehicle at all times, even if your vehicle ♦...
  • Page 3 SAFETY WARNINGS GENERAL SAFETY RULES CARBON MONOXIDE The following precautionary warnings are @supereva.it If it is necessary to let the engine run in order used throughout this manual in order to to carry out some work, make sure that convey the following messages: the area in which you are operating is properly Safety warning.
  • Page 4 CARBON MONOXIDE COOLANT BATTERY HYDROGEN GAS BATTERY HYDROGEN GAS AND ELECTROLYTE AND ELECTROLYTE WARNING In certain conditions, the ethylene glycol WARNING Use latex gloves for the maintenance contained in the engine coolant is flammable: operations that require contact with used its flame is invisible, but you can be The battery gives off noxious and oil.

  • Page 5: Exhaust Emission Control System

    However, NHTSA can-not aprilia USA Inc. become involved in individual problems 110 Londonderry Court, Suite 130 between you, your dealer, or aprilia. To Woodstock, GA 30188 contact NHTSA, you may either call the Auto Safety Hotline toll free at 1-800-424-9393 Tel 770 592 2261 (or 366-0123 in the Washington, D.C.

  • Page 6: Tampering Warning

    The use of the vehicle after such device inspected and repaired by your Local aprilia or element of design has been removed Dealer. or rendered inoperative by any person.
  • Page 7 NUMBER (V.I.N.) IN THE VEHICLE (FRAME NUMBER) IDENTIFICATION NUMBER 1) Manufacturer’s identification alphanumeric code. Every vehicle produced by aprilia receives 2) Vehicle type. a vehicle identification number 3) Model. (V.I.N.) stamped: 4) Country for which the vehicle is intended. – on the central tube of the frame (A), to 5) # = Check digit number be able read it see p.

  • Page 8: Position Of The Warning Adhesive Labels

    POSITION OF THE WARNING ADHESIVE LABELS use and maintenance SR 50...
  • Page 9 Ref. Description Ref. Description BATTERY SERVICE WARNING! This battery is completely sealed. Do not attempt to remove the cap. Replace with sealed battery only. Always keep the battery charged (see Owner's Manual). Never disconnect the battery or regulator with the engine running. This will completely destroy the entire electrical system.
  • Page 10 WARNING! Do not install accessories or replacement parts not approved by Aprilia as original spare parts. Such installation can degrade the handling and safety of your motorcycle and can cause an accident with serious injury or death.

  • Page 11: Manufacturer's Warranty Coverage

    Via G. Galilei, Where a warrantable condition exists, 1, 30033 Noale (VE) Italy tel. +39 -041 aprilia will repair your vehicle at no cost to 58 29 111, fax +39 - 041 44 10 54, or you, including diagnosis, parts and labor.
  • Page 12 Control System emergency repairs, as hours at any authorized aprilia motorcycle provided for in the California Administrative aprilia s.p.a., Via G. Galilei, 1, 30033 dealer located within the United Code, may be performed by other Noale (VE) Italy (hereinafter aprilia) States of America in compliance with than an authorized aprilia dealer.

  • Page 13: Limited Liability

    III. LIMITED LIABILITY B. NO EXPRESS EMISSION CONTROL SYSTEM WARRANTY IS GIVEN BY System warranty shall not cover any of the A. The liability of aprilia under this Emission aprilia EXCEPT AS SPECIFICALLY following: Control System Warranty is limited SET FORTH HEREIN. ANY EMISSION A.
  • Page 14 However, aprilia is not liable for these parts. The owner is responsible for the perfomance of all required maintenace.
  • Page 15 NOTE In this manual the various versions are When asking your Dealer for GENERAL iNSTRUCTIONS indicated by the following symbols: spare parts, specify the spare parts code The operations preceded by this indicated SPARE PARTS symbol must be repeated also on IDENTIFICATION LABEL.
  • Page 16 ADHESIVE LABELS ........8 STOPPING ............ 52 ADJUSTING THE PARKING ............52 HEADLIGHT BEAM HORIZONTALLY ... 81 APRILIA S.P.A.EMISSION CONTROL POSITIONING THE VEHICLE BULBS ............82 SYSTEM WARRANTY STATEMENT .... 11 ON THE STAND ..........53 CHANGING THE HEADLIGHT BULBS ..83 MANUFACTURER’S WARRANTY COVERAGE 11...
  • Page 17 safe drive...

  • Page 18: Basic Safety Rules

    BASIC SAFETY RULES The instructions given below cover normal operation of your vehicle and must be carefully observed. By following these rules you will enhance your own safety and the safety of those around you. You will also maximize the life and utility of your vehicle.
  • Page 19 Avoid obstacles that could damage the Always ride with both hands on the Observe all rules of the road. Particularly pay attention to all warning, regulatory and vehicle or make you lose control. handlebars and feet on the footrests. informational signs. Do not tailgate, do not attempt to increase Never shift gear without using the clutch, if your gas mileage by following in the slip...
  • Page 20 Your aprilia dealer is ready and able to help you with any safety problems that you might have, but of course it is necessary for you to report any malfunctions to your mechanic in order for him to help you.
  • Page 21 Have your vehicle repaired only with original This vehicle was not designed to be or color of your license plate. Do not cover it parts, and use only original aprilia or equipped with a sidecar or to be used to with even a clear plastic covering.
  • Page 22 Never race other vehicles with your vehicle. Always ride at the appropriate speed and Gradually open and close the throttle, to avoid unnecessary hard acceleration. avoid spinning or skidding the rear wheel. Brake with both the front and rear brakes. This not only is safer, but also reduces The use of one brake only for sudden braking On rough road surfaces, slow down and...
  • Page 23 Always observe posted and statutory CLOTHING Inevitably, the driver will look right at you, speed limits, but do not assume that you and yet swear that they did not see you Before riding your vehicle, ensure that can ride as fast as the speed limit under before they turned directly into your path.
  • Page 24 The owner of the vehicle is responsible for dim or quit, or the horn and other safety turns. the choice, installation and use of any accessories not to work. Use only aprilia Avoid using accessories that hamper access accessory. genuine accessories.
  • Page 25 Do not hang anything from your motorcycle This makes it more likely that the front Never carry loosely packaged items, make handlebars, fenders, or forks, because this wheel will come up off the ground, especially sure that everything that you carry on your will upset the handling of your motorcycle, on acceleration.
  • Page 26 ARRANGEMENT OF THE MAIN ELEMENTS 6) Saddle lock 1) Coolant expansion tank cap 7) Air cleaner 2) Bag hook 8) Left inspection cover 3) Battery/tool kit compartment cover 4) Fuel tank 5) Fuel filler cap use and maintenance SR 50...
  • Page 27 7) Battery 1) 2 stroke oil tank cap 8) Lower shield cover 2) 2 stroke oil tank 9) Anti-theft hook (for the aprilia “Body-Guard” 3) Ignition switch/steering lock armored cable 4) Right inspection cover 10) Center stand 5) Fuse carrier...
  • Page 28 ARRANGEMENT OF THE INSTRUMENT/CONTROLS INSTRUMENTS 11) Fuel level indicator ( ) 1) Electrical controls on the left side of the handlebar 12) Speedometer 2) Cold start lever 13) Total miles odometer 3) Rear brake lever 14) Coolant temperature indicator ( ) 4) Left rear-view mirror 15) Green direction indicator warning light ( 5) Instruments and indicators...

  • Page 29: Instruments And Indicators Table

    ” is depressed. If the light switches on, refer to the instructions on page 30 (INJECTION CHECK WARNING LIGHT). Diagnostics warning light (INJECTION If the light fails to switch on there is a fault in the motorcycle. Do CHECK) CAUTION not start the motorcycle. Contact an Aprilia Dealer. use and maintenance SR 50...
  • Page 30 Warning light flashes frequently. WARNING If this happens it means there is a potentially serious fault. You are strongly urged to contact an Authorized Aprilia Dealer immediately. If the motorcycle is started in this state its functions may be limited.

  • Page 31: Direction Indicator Switch

    CONTROLS CONTROLS AT THE LEFT HAND GRIP NOTE The electrical components function only when the ignition switch (A) is in the “ ” (ON) position. The lights are illuminated only when the engine is running. 1) HORN PUSH BUTTON ( (ON) (ON) The horn is activated when the push button is pressed.

  • Page 32: Engine Stop Switch

    CONTROLS AT THE RIGHT HAND GRIP NOTE The electrical components function only when the ignition (OFF) (ON) switch (A) is in the “ ” (ON) position. The lights are illuminated only when the engine is running. ENGINE STOP SWITCH ( (ON) WARNING Do not use the engine stop switch to stop the engine while the...

  • Page 33: Ignition Switch

    ♦ Rotate the key (2) counterclockwise (OFF) (leftwards), steer the handlebar slowly until the key (2) reaches position “ ” (LOCK). (OFF) ♦ Extract the key (2). Function Position removal The steering It is possible (LOCK) is locked. remove (LOCK) It is neither the key.

  • Page 34: Unlocking /Locking The Saddle

    To prevent the vehicle from being stolen, it ♦ Insert the key in the saddle lock (1). every time you park the vehicle. The is advisable to secure it with the aprilia ♦ Turn the key clockwise and raise the compartment is positioned under the saddle.

  • Page 35: Battery /Tool Kit Compartment

    BATTERY /TOOL KIT REAR MUDGUARD EXTENSION BAG HOOK COMPARTMENT WARNING The rear mudguard extension (5) is provided This compartment is positioned in the lower as standard equipment and can be installed part of the vehicle, between the footrests. Do not hang excessively bulky bags or if the vehicle is used on wet roads, To reach it, proceed as follows: parcels to the hook, as this may seriously...
  • Page 36 FUEL WARNING WARNING Gasoline is poisonous and carcinogenic and contains chemical substances Gasoline is extremely flammable and in that cause birth defects and other some conditions can become explosive. reproductive problems. If gasoline Therefore, it is necessary to refuel and should be accidentally spilt on the skin carry out maintenance operations or clothes, immediately wash it off with...
  • Page 37 2 stroke oil line has been removed, is properly seated. In case of oil leakage do not ride your take your vehicle to your Local aprilia ♦ Lower and lock the saddle, see p. 34 vehicle. Before using the vehicle, have it Delear, who can bleed the system.

  • Page 38: Transmission Oil

    (4,000 km), or every 12 months. It is Water on the brakes from washing your aprilia Delear before riding. necessary to have your Local aprilia Dealer vehicle, or splashed up from wet roads, the transmission oil changed after the first...

  • Page 39: Disc Brakes

    MIN = minimum level. degreaser. ♦ Rotate the handlebar, so that the fluid Arrange with your Local aprilia Delear contained in the brake reservoir is parallel to flush the systems and change all of CAUTION to the “MIN” mark stamped on the glass the brake fluid once every two years.
  • Page 40 ATTRACTIVE TO CHILDREN AND PETS. (2,000 km) and after long trips; have the Use extra caution not to spill the coolant coolant changed by your Local aprilia on any hot parts of the engine. It is Dealer every 2 years.

  • Page 41: Checking And Topping Up

    Have any damage or discrepancy repaired Wash coolant from your skin with hot contained in the expansion tank (3) is by your Local aprilia Delear. Do not water and soap. Should you get coolant included between the “MIN” and “MAX”...
  • Page 42 Use only tires in the size suggested by WARNING Check the tire inflation at room tempera- aprilia , see p. 88 (TECHNICAL DATA). ture at least once a week, see p. 88 Do not ride the vehicle if the tire wear Do not install tires with air tube on rims (TECHNICAL DATA).

  • Page 43: Automatic Lights On

    AUTOMATIC LIGHTS ON WARNING New tires are often covered with a Your vehicle is equipped with lights that come on automatically as soon as the engine slippery mold release compound. Scrub is started. the tires in by riding slowly and making numerous turns for the first few miles.

  • Page 44: Exhaust Pipe / Muffler

    Tampering with the noise control system If the noise produced by the exhaust system is forbidden. increases, contact an Authorized aprilia Dealer immediately. The motorcycle owner is hereby notified that law may prohibit the following actions: - the removal or disabling in any way of any...

  • Page 45: Precautions - General Advice)

    Do not hesitate to consult your Local If the throttle sticks open, it may cause PRECAUTIONS - GENERAL ADVICE). aprilia Delear in case there is something a collision with another vehicle, or an you do not understand about the upset.

  • Page 46: Preliminary Checking Operations

    PRELIMINARY CHECKING OPERATIONS Component Check Page Check brake operation, lever and pedal play, fluid levels. Check the pads for Front and rear disc brakes 36, 37 excessive wear, check the discs for condition. If the discs are unduly scored 38, 61 or show signs of heat discoloration, do not ride the vehicle.

  • Page 47: Electric Starting

    (ON) position. ♦ motorcycle and contact an Authorized Make sure the dimmer switch (2) is in the low beam “ ” position. aprilia Dealer. CAUTION ♦ Rotate the ignition key (3) to the “ ” (ON) WARNING position. Do not depress the starter button “...

  • Page 48: Cold Starting

    same time. CAUTION If the engine starts. Never ride off briskly with a cold engine. ♦ Release the throttle control (8). Allow the engine to warm up by riding ♦ If the engine idles unevenly, turn the slowly for the first few miles. throttle control (8) repeatedly with small, frequent movements.
  • Page 49 RIDING WARNING Do not place anything inside the front part of the fairing between the handlebar and the dashboard. Any object placed in this area could jam the forks, and also could restrict visibility of the dashboard. NOTE Before riding away, carefully read the “safe drive”...
  • Page 50 WARNING When you have to brake, close the throttle and apply both brakes simultaneously in order to obtain the best brake performan- By applying only the front brake or only the rear brake, you reduce the braking performance considerably and run the risk of locking up one wheel which can cause an upset and subsequent serious injury or even death.
  • Page 51 WARNING On roads that are wet or covered with snow, ice or mud, ride very slowly, avoiding braking or accelerating or maneuvering quickly. Hold the handlebars firmly. Failure to heed these warnings can cau- se an upset with subsequent serious injury or death.
  • Page 52 PARKING WARNING Park the vehicle only on firm flat ground, otherwise it could fall over. (OFF) Do not lean the vehicle against walls, do not lay it on the ground. Park your vehicle away from children and pedestrians, so that they will not come in contact with hot parts.

  • Page 53: Positioning The Vehicle On The Stand

    ON THE STAND TO PREVENT THEFT rear wheel to the swinging arm. NEVER leave the key in the ignition, always If possible, use the appropriate aprilia “Body- Carefully read p. 52 (PARKING). use the steering lock. Guard” armored cable , or an additional Try to park your vehicle in a safe place, if at anti-theft device.
  • Page 54 Write down your name, address and telephone number and the vehicle identification number in the space below, to facilitate finding the owner in case your vehicle is recovered after theft. SURNAME: ..........NAME: ............ADDRESS: ........................TELEPHONE NO.: ........NOTE Very often stolen vehicles are identified thanks to the data written in the...
  • Page 55 Do not hesitate to contact your Local or undertightened. If they are overtightened, of the vehicle, stop the engine, remove aprilia Dealer who has all the latest the threads may be damaged and the the key (1) from the ignition lock (2), wait...

  • Page 56: Servicing Schedule

    SERVICING SCHEDULE JOBS DONE BY Authorized Aprilia Dealer (WHICH CAN BE DONE BY THE USER) End of running in Every 4000 km Every 8000 km Component [500 km (2500 miles) (5000 miles) (312 miles)] or 12 months or 24 months...
  • Page 57 JOBS DONE BY Authorized Aprilia Dealer End of running in Every 4000 km Every 8000 km Component [500 km (2500 miles) (5000 miles) (312 miles)] or 12 months or 24 months Rear shock absorber Transmission and control cables Drive belt...
  • Page 58 End of running in Every 4000 km Every 8000 km Component [500 km (2500 miles) (5000 miles) (312 miles)] or 12 months or 24 months Clean injector every 16000 km (9920 mi): Cl Variator front rollers and guides Wheels / tires inflation pressure Tightening nuts and bolts Two stroke oil reserve warning light Fuel lines...

  • Page 59: Identification Data

    IDENTIFICATION DATA FRAME NUMBER ENGINE NUMBER The frame number is stamped on the central The engine number is stamped on the lower It is a good idea to write down the frame and tube of the frame. To be able to read it, it is support of the rear shock absorber.

  • Page 60: Air Cleaner

    Check: AIR CLEANER REMOVAL - filter element (6); Position the motorcycle on the central Carefully read p. 55 (MAINTENANCE). - air box seal (7); stand, see page 38 (POSITIONING THE replacing them if necessary. MOTORCYCLE ON THE STAND). WARNING DANGER CLEANING Do not use gasoline or inflammable To avoid burns, allow the engine to cool...

  • Page 61: Front Wheel

    Should you accidentally unfamiliar with vehicle maintenance. You position after loosening it. do this, take your vehicle to your Local may wish to have your Local aprilia aprilia Delear who will know how to Delear carry out these operations. WARNING repair this damage.
  • Page 62 Remove the support (2) from under the tire. and balancing of the wheel checked by ♦ Remove the support (1) from under the WARNING your Local aprilia Dealer. These are vehicle. Danger of injury. critical safety operations, and failure to ♦...

  • Page 63: Rear Wheel

    You is excessive, or if you detect that the means of a plastic band (4). may wish to have your Local aprilia effectiveness of the brakes is reduced in ♦ Remove the cover (5).

  • Page 64: Checking The Brake Pad Wear

    Check the brake pad wear after the first 300 mi front (3) or rear (4), is worn to 0.06 in (1.5 Local aprilia Dealer. These are critical (500 km) and then every 1,250 mi (2,000 km). mm) or less, replace both pads.

  • Page 65: Checking The Steering

    If slack at the axle is silencer cool down until they reach room considerable, arrange to have your vehicle temperature, in order to avoid burns. repaired by your Local aprilia Dealer. ♦ Shake the wheel transversally with respect to the riding direction.

  • Page 66: Checking The Stand

    ♦ CHECKING THE STAND The stand (1) must rotate freely about its REMOVING pivot. If necessary, lubricate the pivot, see THE REAR-VIEW MIRRORS Carefully read p. 55 (MAINTENANCE) p. 93 (LUBRICANT CHART). and p. 66 (CHECKING THE SWITCHES). Carefully read p. 55 (MAINTENANCE). CHECKING THE SWITCHES WARNING The following information refers to one...

  • Page 67: Removing The Exhaust Silencer

    ♦ Remove the exhaust silencer. REMOVING CAUTION ♦ Taking the two bushings of the upper screw THE EXHAUST SILENCER If the additional flange (1) is provided, (6). do not unscrew the screws (2) and (3), Carefully read p. 55 (MAINTENANCE). NOTE but follow the procedure described here Upon reassembly, replace the...
  • Page 68 Check the conditions of the rim and have it replaced if it is damaged. WARNING After reassembly, pull the rear brake lever WARNING repeatedly and check the correct Have the rim replaced by your Local functioning of the braking system. aprilia Dealer. use and maintenance SR 50...

  • Page 69: Removing The Front Cover

    ♦ REMOVING Remove the front cover (4), by pulling it REMOVING THE FRONT COVER upwards. THE COVER SUPPORT ELEMENT Carefully read p. 55 (MAINTENANCE). NOTE Upon reassembly, correctly insert Carefully read p. 55 (MAINTENANCE). ♦ Remove the cover support element (2), see the lower tang (5) and successively the two beside (REMOVING THE COVER ♦...

  • Page 70: Partial Removal Of The Upper Handlebar Cover

    NOTE REMOVING Upon reassembly, fit the screws (4) CAUTION THE LOWER HANDLEBAR COVER (smaller diameter than the other screws) in The upper handlebar cover (10) (comple- the relevant seats. Carefully read p. 55 (MAINTENANCE). te with switches, instruments and ♦ Center the handlebar, withdraw the lower ♦...

  • Page 71: Removing The Right And Left Inspection Covers

    NOTE NOTE REMOVING Carry out the following operations At points (9) and (10) the left THE RIGHT AND LEFT on the side of the inspection cover to be inspection cover must overlap the right removed. ispection cover. INSPECTION COVERS ♦ Unscrew and remove the screw (4) and the If both inspection covers have been removed, Carefully read p.

  • Page 72: Installing The Rear Mudguard Extension

    INSTALLING THE REAR ♦ Screw and tighten finger tight the two nuts ♦ Grasp the bulb socket (1), pull and take it (4). out of its seat. MUDGUARD EXTENSION ♦ ♦ Position the bulb socket (1) correctly in its Release the license plate light cable (2) Carefully read p.

  • Page 73: Removing The Front Inner Shield

    REMOVING THE FRONT INNER SHIELD Carefully read p. 55 (MAINTENANCE). NOTE Remove the key from the ignition switch. ♦ Place the vehicle on the center stand. # Unscrew and remove the two screws ♦ (1). # Raise the front part of the foot board ♦...

  • Page 74: Adjusting The Throttle Control

    The play of the throttle cable must be ADJUSTING WARNING between 0.08 – 0.12 in (2 – 3 mm), THE THROTTLE CONTROL measured at the edge of the grip, see the Exhaust gases contain carbon monoxide, Carefully read p. 55 (MAINTENANCE). illustration above.

  • Page 75: Spark Plug

    ♦ Using compressed air, carefully blow out the spark plug after you have cleaned it. Inspect for cracks on the insulating material, electrode corrosion or erosion, or 0.035 in (0.9 mm) deposits that you cannot remove. If the spark plug shows any of these defects, it must be replaced.
  • Page 76 If someone should accidentally swallow BATTERY battery electrolyte, drink a large quantity Carefully read p. 55 (MAINTENANCE). of milk or cool clear water and continue Your vehicle is equipped with a sealed with milk of magnesia or vegetable oil. maintenance free battery. Except for the Seek professional medical assistance tightness of the terminals, and required immediately.

  • Page 77: Battery Storage

    Local aprilia Dealer, and will ensure that – covered with neutral grease or Vaseline. away from children: risk of serious your battery always remains in tip top If it is necessary to clean the battery injuries or even death.

  • Page 78: Checking The Electrolyte Level

    CHECKING THE ♦ Connect the battery charger to the battery. ELECTROLYTE LEVEL ♦ Charge the battery using a battery charg- Carefully read p. 76 (BATTERY). er with a current capacity of no greater than 1/10th the capacity of the battery, see p. Your vehicle is equipped with a sealed 89 (TECHNICAL DATA).

  • Page 79: Changing Fuses

    If an electric component does not work or Do not attempt to continue using your works irregularly, or if the vehicle fails to start, vehicle. Take it to your Local aprilia it is necessary to check the fuse (1). Dealer for repair and service.

  • Page 80: Adjusting The Headlight Beam Vertically

    ADJUSTING THE HEADLIGHT BEAM VERTICALLY WARNING Do not use the vehicle if the lights are not functioning properly. Do not use the vehicle if the headlight is adjusted incorrectly. This could temporarily blind oncoming cars, and also reduce the rider’s ability to see any obstacle along the road while riding at night.
  • Page 81 UPPER UPPER UPPER UPPER PIV. PIV. LOWER LOWER There are four groups of shims, for four ADJUSTING THE HEADLIGHT To adjust the beam: different degrees of adjustment. ♦ Remove the front shield cover, see p. 68 BEAM HORIZONTALLY (REMOVING THE FRONT SHIELD Each shim is marked with the type COVER).
  • Page 82 BULBS Carefully read p. 55 (MAINTENANCE). WARNING Risk of fire. Keep fuel other flammable substances away from the electrical components. CAUTION Before changing a bulb, turn the ignition ♦ Depending on the beam adjustment to be Screw and tighten finger tight the three switch (4) to the “...

  • Page 83: Changing The Front And Rear Direction Indicator Bulbs

    CHANGING THE FRONT AND REAR DIRECTION INDICATOR BULBS Carefully read p. 82 (BULBS). NOTE Before changing a bulb, check the fuse, see p. 79 (CHANGING FUSES). ♦ Place the vehicle on the center stand. ♦ Unscrew and remove the screw (6). NOTE While removing the lens, use extra care to be sure that you do not break...

  • Page 84: Changing The Dashboard Bulbs

    WARNING LIGHT BULBS CHANGING DASHBOARD LIGHTING BULBS THE DASHBOARD BULBS NOTE Extract the bulb sockets one by NOTE Extract the bulb sockets one by one, in such a way as to avoid positioning Carefully read p. 82 (BULBS). one, in such a way as to avoid positioning them incorrectly during the reassembly.

  • Page 85: Changing The Rear Light Bulb

    The rear light comprises two units. Each unit contains: – one parking light bulb (1); – one stoplight bulb (2). To change them, proceed as follows: ♦ Place the vehicle on the center stand. ♦ Unscrew and remove the screw (3). NOTE While removing the lens, use extra care to be sure that you do not break...

  • Page 86: Draining The Fuel Tank

    TRANSPORT WARNING Before transporting your vehicle, you must empty the fuel tank completely, ensuring that it is completely dry. While your vehicle is being transported, it must be kept in a vertical position, firmly tied down, and with the wheels blocked. Failure to heed this warning could cause serious damage to the transmission due to vibration of the transport truck.
  • Page 87 CLEANING WARNING CAUTION Polish with silicone wax only after having After your vehicle has been washed, the carefully washed your vehicle. Do not brake functioning will be temporarily wash the vehicle in direct sunlight, impaired because of the wetness of the especially during the summer, when the discs and pads.

  • Page 88: Long Periods Of Inactivity

    LONG PERIODS OF INACTIVITY If the vehicle is to be stored for a relatively long period of time, such as over the winter, some simple precautions will make putting the vehicle back into service much easier. It is much less difficult to prepare the vehicle for storage properly than it is to restore the vehicle to proper working condition after a storage period if you have forgotten or...
  • Page 89 TECNICAL DATA DIMENSIONS Max. length (with rear mudguard extension) ......46.25 in (1775 mm) Max. width ............28.35 in (720 mm) Max. height (front part of the fairing included) ... 47.24 in (1200 mm) Seat height ............8.66 in (220 mm) Wheelbase ............
  • Page 90 CAPACITY Fuel (reserve included) ........2.11 US gal (8 l) Fuel reserve ............0.53 US gal (2 l) Transmission oil ..........3.72 US fl oz (130 cm 2 stroke oil (reserve included) ......1.69 US qt (1.6 l) 2 stroke oil reserve ..........0.53 US qt (0.5 l) Coolant ..............
  • Page 91 FUEL SUPPLY Fuel ..............unleaded petrol minimum octane rating (R+M) / 2 method 90 FRAME Type ..............one-beam, split in two at the rear SUSPENSIONS Front ..............telescopic fork Wheel stroke ............3.54 in (90 mm) Rear ..............hydraulic mono-shock absorber Wheel stroke ............
  • Page 92 IGNITION Type ..............TCI Spark advance ........... variable 2 to 3000 rpm 1 to 7500 rpm SPARK PLUG Standard ............NGK R CPR8-E Spark plug gap ........... 0.035 in (0.9 mm) ELECTRIC SYSTEM Battery ............... 12 V - 4 Ah Fuse ..............

  • Page 93: Lubricant Chart

    LUBRICANT CHART Transmission oil (recommended): F. C., SAE 75W - 90 or GEAR SYNTH, SAE 75W - 90. As an alternative to the recommended oil, it is possible to use high-quality oils with characteristics in compliance with or superior to the A.P.I.
  • Page 94 Importers use and maintenance SR 50...
  • Page 95 Importers use and maintenance SR 50...

  • Page 96: Wiring Diagram - Sr

    WIRING DIAGRAM - SR 50 use and maintenance SR 50...

  • Page 97: Cable Colours

    WIRING DIAGRAM - SR 50 1) Oil level switch 36) Air injector 2) Injection check warning light 37) Petrol injector 3) Water temperature gauge 38) Multiple connectors 4) Direction indicators warning light 39) Oil pump 5) Oil level warning light 40) Temperature sensor 6) Dashboard lights 41) Pick up...
  • Page 98 NOTE ASK FOR GENUINE SPARE PARTS ONLY use and maintenance SR 50...
  • Page 99 NOTE ASK FOR GENUINE SPARE PARTS ONLY use and maintenance SR 50...
  • Page 100 NOTE ASK FOR GENUINE SPARE PARTS ONLY use and maintenance SR 50...
  • Page 101 NOTE ASK FOR GENUINE SPARE PARTS ONLY use and maintenance SR 50...
  • Page 102 NOTE ASK FOR GENUINE SPARE PARTS ONLY use and maintenance SR 50...
  • Page 103 NOTE ASK FOR GENUINE SPARE PARTS ONLY use and maintenance SR 50...
  • Page 104 – 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.

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