APRILIA Atlantic 500 Workshop Manual
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APRILIA Atlantic 500 Workshop Manual

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ATLANTIC 500
1074 2
11/2002-00
workshopmanual

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Summary of Contents for APRILIA Atlantic 500

  • Page 1 ATLANTIC 500 1074 2 11/2002-00 workshopmanual...

  • Page 2: General Information

    This manual does not describe all of the procedures necessary to repair and service the vehicle in detail. This publication is intended for use by aprilia dealers Routine maintenance and their trained, experienced mechanics. The descriptions of many service and repair opera-...

  • Page 3: Table Of Contents

    Atlantic 500 CONTENTS Chapter 1 SAFETY WARNINGS ..........................1-2 PRECAUTIONS AND GENERAL INFORMATION ................. 1-2 REFITTING COMPONENTS ......................... 1-3 USING THE MANUAL ..........................1-3 POSITION OF SERIAL NUMBERS ....................... 1-4 SAFETY WARNINGS FOR FUEL, LUBRICANTS COOLANT AND OTHER COMPONENTS ....1-4 FUEL ..............................

  • Page 4: Table Of Contents

    Atlantic 500 Chapter 3 ENGINE COMPONENTS THAT CAN BE REMOVED WITHOUT REMOVING THE ENGINE ....3-2 REMOVING THE ENGINE FROM THE FRAME ................... 3-3 Chapter 4 FUEL PUMP AND TANK ........................4-2 EMS FUEL INJECTION SYSTEM......................4-2 FUEL SUPPLY SYSTEM ........................4-3 CHECKING THE FUEL SUPPLY SYSTEM ...................
  • Page 5 HORIZONTAL ADJUSTMENT HEADLIGHT BEAM ................6-38 CHANGING FUSES ..........................6-38 ELECTRIC COMPONENTRY POSITIONS..................6-40 ELECTRIC COMPONENTRY POSITIONS..................6-41 WIRING DIAGRAM SCOOTER ATLANTIC 500 CC ................6-42 Chapter 7 BODYWORK ............................7-2 REMOVING THE PASSENGER FOOTBOARDS .................. 7-2 REMOVING THE BOTTOM GUARD ..................... 7-2 LOCKING/RELEASING THE SADDLE ....................
  • Page 6 Atlantic 500 REMOVING THE COMPLETE DASHBOARD ..................7-15 REMOVING THE FRONT FAIRING ..................... 7-16 REMOVING THE DASHBOARD PANEL ..................... 7-16 REMOVING THE COMPLETE LIGHT UNIT ..................7-17 REMOVING THE HELMET COMPARTMENT ..................7-18 FRONT WHEEL ........................... 7-22 KEY ..............................7-22 REMOVING THE FRONT WHEEL ......................
  • Page 7 Atlantic 500 Release 00 2002-09...
  • Page 8 General information Atlantic 500 General information chap. 1 Release 00 2002-09...

  • Page 9: Safety Warnings

    General information Atlantic 500 SAFETY WARNINGS 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.

  • Page 10: Refitting Components

    Bearings must turn freely with no sticking and/or noise. Replace bearings that show any roughness when the inner race is turned. Use only Original aprilia Spare Parts for replacement. Use only the recommended lubricants and sealing agents. Lubricate all metal parts (where possible) before refitting them.

  • Page 11: Position Of Serial Numbers

    VEHICLE IDENTIFICATION NUMBER (V.I.N.) (FRAME NUMBER) Every vehicle produced by aprilia receives a vehicle identification number (V. I. N.) stamped: - on the steering head of the frame (A), as shown above;...

  • Page 12: Safety Warnings For Fuel, Lubricants Coolant And Other Components

    General information Atlantic 500 ENGINE NUMBER The engine number is stamped near the lower rear shock absorber support. Engine n° SAFETY WARNINGS FOR FUEL, LUBRICANTS COOLANT AND OTHER COMPONENTS FUEL WARNING The fuel used for the propulsion of combustion engines is extremely inflammable and can become explo- sive under certain conditions.
  • Page 13 General information Atlantic 500 TRANSMISSION OIL WARNING Transmission oil can cause serious skin damage if handled on a daily basis over a long period of time. You are advised to wash your hands thoroughly after handling the oil. Do not dispose of the oil in drains, watercourses or the soil.
  • Page 14 General information Atlantic 500 COOLANT WARNING Coolant is harmful if swallowed; it may cause irritation if it comes into contact with the eyes or skin. Rinse for a long time with water and call a doctor if coolant comes into contact with the skin or eyes.

  • Page 15: Running-In Rules

    General information Atlantic 500 CARBON MONOXIDE If a servicing operation has to be carried out with the engine running, make sure this is done in the open air or in a well-ventilated area. Never run the engine in enclosed spaces.

  • Page 16: Precautions And General Information

    After installing a circlip, make sure that it is completely and firmly inserted in its seat. SPARE PARTS Only use original aprilia Spare Parts. Original aprilia Spare Parts are high quality and have been designed and built especially for aprilia vehicles.
  • Page 17 General information Atlantic 500 POSITION OF THE WARNING ADHESIVE LABELS 1-10 chap. 1 Release 00 2002-09...
  • Page 18 General information Atlantic 500 WARNING ADHESIVE LABELS CHART Ref. Description Ref. Description NOT PROVIDED FOR 49 STATES. FOR STATE OF CALIFORNIA ONLY. Muffler stamping. MAXIMUM WEIGHT LOAD ALLOWED lbs 20 (kg 5) 1-11 chap. 1 Release 00 2002-09...
  • Page 19 General information Atlantic 500 CALIFORNIA EVAPORATIVE EMISSION SYSTEM 1-12 chap. 1 Release 00 2002-09...
  • Page 20 General information Atlantic 500 FOR STATE OF CALIFORNIA ONLY. 1) Fuel tank 2) Tank fumes relief 3) Tank fumes breather tube 4) Tee 5) Roll over valve 6) Roll over valve - purge valve connection tube 7) Purge valve 8) Purge valve - carbon canister connection tube...
  • Page 21 30 days. – As the vehicle owner, you should be aware that aprilia may deny your warranty coverage if your motorcycle or a part has failed due to abuse, neglect, improper maintenance or unapproved modifications.
  • Page 22 Administrative Code, may be performed by other than an authorized aprilia dealer. An emergency situation occurs when an authorized aprilia dealer is not reasonably available, a part is not available within 30 days, or a repair is not complete within 30 days. Any replacement part can be used in an emergency repair. aprilia will reimburse the owner for the expenses, including diagnosis, not to exceed aprilia’s suggested retail price for all...
  • Page 23 Control System Warranty is limited solely to the remectying of defects in material of workmanship by an autho- rized aprilia motorcycle dealer at its place of business during customary business hours. This warranty does not cover inconvenience or loss of use of the motorcycle or transportation of the motorcycle to or from the aprilia dealer.

  • Page 24: Technical Specifications

    General information Atlantic 500 TECHNICAL SPECIFICATIONS DIMENSIONS Max. length 89.4 in (2270 mm) Max. width 28.3 in (720 mm) Max. height (al front fairing) 57.0 in (1450 mm) Saddle height 30.7 in (780 mm) Wheelbase 62.0 in (1575 mm) Minimum ground clearance 5.9 in (150 mm)
  • Page 25 General information Atlantic 500 FUEL SUPPLY Type Electronic injection with electric fuel pump Fuel Unleaded gasoline (4 Stars ), with minimum octane rating of 95 (RON) and 85 (MON) FRAME Type High-resistance steel tubes Steering angle 28°, 50’ Trail 4.6 in (118 mm)

  • Page 26: Lubricant Chart

    General information Atlantic 500 ELECTRICAL SYSTEM Battery 12 V - 14 Ah Fuses 30 - 20 - 15 - 3 A Alternator (with permanent magnet) 14 V - 330 W BULBS Headlight / high beam 12 V - 55 W / 12 V - 35 W...

  • Page 27: Tightening Torque Chart

    General information Atlantic 500 TIGHTENING TORQUE CHART DESCRIPTION ftlb FRAME ASSEMBLY Passenger footrest fastening screw 14.75 Steering lock plate screws 8.68 Locking ring nut 36.88 Key commutator blind fastening screw 7.23 Threaded bushing 2.21 Key commutator fastening screw 7.23 WINDSHIELD SUPPORT ASSEMBLY Windshield support fastening screw 7.23...
  • Page 28 General information Atlantic 500 DESCRIPTION ftlb FRONT WHEEL ASSEMBLY Wheel pin 36.88 Speedometer sensor screw 6.63 Hub screw 7.23 REAR WHEEL ASSEMBLY 110.64 PASSENGER HANDLE SUPPORTS ASSEMBLY Passenger handle supports fastening TBEI screw 14.75 PASSENGER BACKREST SUPPORT ASSEMBLY Backrest support assembly fastening screw 7.23...
  • Page 29 General information Atlantic 500 1-22 chap. 1 Release 00 2002-09...
  • Page 30 Routine maintenance operations Atlantic 500 Routine maintenance operations chap. 2 Release 00 2002-09...

  • Page 31: Routine Maintenance Plan

    ROUTINE MAINTENANCE PLAN In order to keep the motorcycle in excellent working order, aprilia urges you to keep to the specified intervals when servicing the various components. chap. 2 Release 00...

  • Page 32: Scheduled Maintenance Chart

    Routine maintenance operations Atlantic 500 SCHEDULED MAINTENANCE CHART OPERATIONS HANDLED BY THE aprilia dealer End of breaking-in Every 3,750 mi Every 7,500 mi COMPONENTS 625 mi (1,000 km) (6,000 km) or 8 months (12,000 km) or 16 months Throttle cable...

  • Page 33: Lubrication Points

    Routine maintenance operations Atlantic 500 LUBRICATION POINTS KEY TO LUBRICATION DIAGRAM 1) Brake lever pivot Regular lubrication, using the correct lubricants, is an 2) Steering bearings important factor in ensuring the long life and excellent 3) Side stand pivot performance of the motorcycle.

  • Page 34: Battery

    Routine maintenance operations Atlantic 500 BATTERY Carefully read (MAINTENANCE). After the first 625 mi (1,000 km) and every 3,750 mi (6,000 km) thereafter, check the electrolyte level and make sure the terminals are firmly tightened. WARNING Danger of fire. Fuel and other flammable substances must be kept away from electrical components.

  • Page 35: Removal Battery Cover

    Routine maintenance operations Atlantic 500 REMOVAL BATTERY COVER Carefully read (BATTERY). NOTE Place the vehicle on a flat, hard surface. • Make sure that the ignition switch is set to “ ”. • Lift the saddle, see (LOCKING/RELEASING THE SADDLE).

  • Page 36: Removing The Battery

    Routine maintenance operations Atlantic 500 REMOVING THE BATTERY • Remove the battery cover, see alongside (RE- MOVING THE BATTERY COVER). • Remove the battery bleed tube (7). • Slide the battery (8) out of its seat, turning it slightly to the right as shown by the arrow.

  • Page 37: Checking The Level Of Battery Electrolyte

    Routine maintenance operations Atlantic 500 CHECKING THE LEVEL OF BATTERY ELEC- TROLYTE To check the electrolyte level: • Remove the battery cover, see (REMOVING THE BATTERY COVER). • Make sure that the fluid level is between the two “MIN” and “MAX” notches stamped on the side of the battery.

  • Page 38: Battery Installation

    Routine maintenance operations Atlantic 500 BATTERY INSTALLATION • Remove the battery cover, see (REMOVING THE BATTERY COVER). • Place the battery in its housing. CAUTION Always connect the battery bleed to the prevent escaping sulfuric acid fumes from corroding the electrical system, painted parts, rubber parts or gaskets.

  • Page 39: Adjusting The Throttle Control

    Routine maintenance operations Atlantic 500 • Use a strong blast of compressed air to prevent the residue removed from entering the engine. The spark plug must be replaced if it shows cracked insulation, corroded electrodes or exces- 0,7-0,8 mm sive buildup.

  • Page 40: Air Filter

    Routine maintenance operations Atlantic 500 AIR FILTER Carefully read MAINTENANCE. You should clean and check the condition of the air filter every 3,750 mi (6,000 km), depending on use. If the vehicle is used on dusty or wet roads, clean or change the filter more frequently.

  • Page 41: Engine Oil

    Routine maintenance operations Atlantic 500 ENGINE OIL Check the engine oil after the first 625 miles (1,000 km), that is, at the end of the run-in period. Check the oil again every 1,875 miles (3,000 km). Oil must be replaced every 3,750 miles (6,000 km), see ENGINE OIL CHANGE AND OIL FILTER.

  • Page 42: Engine Oil Change And Oil Filter

    Routine maintenance operations Atlantic 500 CAUTION Do not fill beyond the “MAX” marking or below the “MIN” marking to avoid seriously damaging the engine. • Top up if necessary. TOPPING UP • Add a small amount of oil through the filling hole (2) and wait about a minute for the oil to flow evenly within the half-case.
  • Page 43 WARNING The oil used contains substances hazardous to the environment; therefore, to change the engine oil contact an aprilia dealer, who will dispose of the used oil in compliance with current regula- tions. • Unscrew and remove the oil drain plug (4) and let all of the engine oil flow out.
  • Page 44 Routine maintenance operations Atlantic 500 • Unscrew and extract the cap-dipstick (1). • Use a clean cloth to clean the part in contact with the oil. • Fully tighten the cap-dipstick (1) in the filling hole (2). • Extract the cap-dipstick (1) again and read the...

  • Page 45: Changing The Transmission Oil

    Routine maintenance operations Atlantic 500 CHANGING THE TRANSMISSION OIL Carefully read LUBRICANTS, MAINTENANCE and LUBRICANT CHART. NOTE Place the vehicle on a flat, hard surface. • Place the vehicle on the center stand. WARNING The engine and exhaust system components become very hot, and remain hot for some time even after the engine has been shut off.

  • Page 46: Checking

    Routine maintenance operations Atlantic 500 WARNING The brakes are the parts that guarantee the most safety and therefore, they must always be kept in perfect working order. Always check the brakes before using the vehicle. A dirty disc will soil pads, which will lead to a reduction in braking efficiency.

  • Page 47: Topping Up Brake Fluid

    Routine maintenance operations Atlantic 500 TOPPING UP BRAKE FLUID Carefully read DISC BRAKES. Unscrew the four screws (2) of the brake fluid tank (3). Remove the cover (4). NOTE In order not to spill brake fluid during topping up, keep the fluid in the tank parallel to the tank rim (in a horizontal position).

  • Page 48: Bleeding The Braking System

    Routine maintenance operations Atlantic 500 BLEEDING THE BRAKING SYSTEM (FRONT ONLY) Carefully read DISC BRAKES. If air is present in the hydraulic system, it acts as a bear- ing and absorbs the majority of the pressure exercised by the brake pump, reducing the effectiveness of cali- per action during braking.

  • Page 49: Bleeding The Integral Braking System

    Routine maintenance operations Atlantic 500 BLEEDING THE INTEGRAL BRAKING SYSTEM Carefully read DISC BRAKES. If air is present in the hydraulic system, it acts as a bear- ing and absorbs the majority of the pressure exercised by the brake pump, reducing the effectiveness of cali- per action during braking.
  • Page 50 Routine maintenance operations Atlantic 500 Unscrew and remove the three screws (7). Remove the rear brake caliper (8) from the plate (9) with relevant cable gland. Position the rear brake caliper (8) so that the bleeder nipple (10) is in the highest position.

  • Page 51: Checking And Topping Up Coolant

    Routine maintenance operations Atlantic 500 CHECKING AND TOPPING UP COOLANT Carefully read COOLANT and PRECAUTIONS AND GENERAL INFORMATION. CAUTION Never use the vehicle if the coolant level is below minimum “MIN”. Check the coolant level every 1,250 mi (2,000 km) and after long trips;...

  • Page 52: Replacing The Coolant

    Routine maintenance operations Atlantic 500 REPLACING THE COOLANT Carefully read COOLANT and PRECAUTIONS AND GENERAL INFORMATION. CAUTION Never use the vehicle if the coolant level is below minimum “MIN”. Check the coolant level every 1,250 mi (2,000 km) and after long trips; replace every 16 months.

  • Page 53: Bleeding The Circuit:

    Routine maintenance operations Atlantic 500 • Start the engine and leave it running at minimum running speed. • Place a container under the engine to collect the coolant that will spill out from the bleeder screw (5). CAUTION The coolant is pressurized; loosen the bleeder screw (5) slowly and a little at a time in order to avoid splashing dangerous fluids.

  • Page 54: Steering Control

    Repeat the above operation several times. • If there is clear indication of play, contact your nearest aprilia dealer, who will restore the vehicle to optimum condition. 2-25 chap. 2...

  • Page 55: Adjusting The Play Of The Bearings

    Routine maintenance operations Atlantic 500 ADJUSTING THE PLAY OF THE BEARINGS Remove the leg shield, see (REMOVING THE LEG SHIELD). Loosen the counter nut (1). CAUTION Do not forcefully tighten or screw the register nut (2) in order not to damage the steering bearings.

  • Page 56: Checking The Front Suspension

    Routine maintenance operations Atlantic 500 CHECKING THE FRONT SUSPENSION Carefully read PRECAUTIONS AND GENERAL INFORMATION. Check the front suspension after the first 625 miles (1,000 km), and then every 3,750 miles (6,000 km) or every 8 months. Replace the front suspension oil every 7,500 miles (12,000 km), see (FRONT SUSPENSION).

  • Page 57: Table Preload Adjustment For Rear Suspension Spring

    Routine maintenance operations Atlantic 500 TABLE PRELOAD ADJUSTMENT FOR REAR SUSPENSION SPRING Adjuster Rotation Rotation ring-nut (arrow A) (arrow B) Function Increase Reduce spring spring preload preload Type of The riding The riding riding position of position of position the vehicle is the vehicle...
  • Page 58 We therefore recommend that you contact your nearest aprilia dealer or tire specialist to perform the aforementioned operations. If the tires are new, they may be covered with a slippery coating: drive carefully for the first few miles.

  • Page 59: Tire Pressure

    ONLY RIDER 30.4 psi (2.1 bar) 33.3 psi (2.3 bar) FULL LOAD 31.9 psi (2.2 bar) 37.7 psi (2.6 bar) (passenger + driver) After thorough testing, aprilia has approved only the following makes of tire for this model: MANUFACTURER DIMENSIONS MODEL FRONT 120/70-15’...
  • Page 60 Engine Atlantic 500 Engine chap. 3 Release 00 2002-09...
  • Page 61 Engine Atlantic 500 ENGINE COMPONENTS THAT CAN BE REMOVED WITHOUT REMOVING THE ENGINE The parts listed below can be removed and refitted without removing the engine from the frame. - Throttle unit (1), see (THROTTLE UNIT) - Intake manifold sleeve (2)
  • Page 62 Engine Atlantic 500 REMOVING THE ENGINE FROM THE FRAME Read carefully (PRECAUTIONS AND GENERAL INFORMATION). CAUTION Stop the engine and wait until the engine and exhaust system have cooled down. Disconnect the battery. Bleed the cooling system completely (see REPLAC- ING THE COOLANT).
  • Page 63 Engine Atlantic 500 Disconnect the pump water inlet hose (8) by loosen- ing the screw (9) of the hose clamp (10). Disconnect the water outlet hose (11) from the cylin- der by loosening the screw (12) of the hose clamp (13) on the coupling above the cylinder.
  • Page 64 Engine Atlantic 500 Slide out the rubber protection (21) and disconnect the connector of the engine oil pressure sensor (22). Unscrew and remove the starter relay cable fastening nut (23) and slide out the cable (24). Unscrew and remove the two screws (25) that fix the starter motor to the casing and free the relevant grounding cables.
  • Page 65 Engine Atlantic 500 “A” Prepare suitable supports to place under the engine after it has been removed from the frame. “B” Unscrew and remove the fastening pin (27) of the left rear suspension (28). Retrieve the relevant nut and washer.
  • Page 66 Fuel system Atlantic 500 Fuel system chap. 4 Release 00 2002-09...

  • Page 67: Fuel Pump And Tank

    Fuel system Atlantic 500 FUEL PUMP AND TANK EMS FUEL INJECTION SYSTEM This fuel injection system has integrated injection and ignition. Injection is indirect into the manifold, using an electronic fuel injector. Injection and ignition are phased to a 4-stroke cycle, using a phonic wheel dropped on the camshaft control and a reluctance variation sensor.
  • Page 68 Fuel system Atlantic 500 FUEL SUPPLY SYSTEM FUEL SUPPLY SYSTEM KEY 1) Fuel pump 2) Fuel tank 3) Intake manifold 4) Fuel supply pipe (DELIVERY) 5) Fuel supply pipe (RETURN) 6) Excess gasoline bleeder pipe 7) Fuel injector 8) Fuel level float...
  • Page 69 Fuel system Atlantic 500 MAINTENANCE Check the condition of the tubing in the fuel system every 3,750 mi (6,000 km) or 8 months. Any pipes that show signs of drying, cracking or cuts must be replaced. Make sure that pipes are NOT twisted or choked.

  • Page 70: Removing/Disassembling The Fuel Pump

    Fuel system Atlantic 500 REMOVING/DISASSEMBLING THE FUEL CAUTION PUMP Work with caution when removing the fuel pump (5), taking care not to damage the fuel pre-filter Read carefully (PRECAUTIONS AND GENERAL (6). INFORMATION) and (FUEL). Remove the fuel pump (5) from the tank (7).

  • Page 71: Throttle Unit

    Fuel system Atlantic 500 DISASSEMBLING AND CHECKING THE PUMP AND FUEL LEVEL PROBE To disassemble these parts, see the ENGINE WORK- SHOP MANUALS n°1063 , n°1064 , n°1065 n°1066 , n°1067 and n°1068 THROTTLE UNIT 1) Stepper motor 2) Throttle position sensor...
  • Page 72 Fuel system Atlantic 500 REMOVING THE THROTTLE UNIT Read carefully (PRECAUTIONS AND GENERAL INFORMATION) and (FUEL). Remove the air filter box, see (AIR FILTER). Disconnect the delivery and return fuel supply pipes (1) of the fuel injector. Unscrew and remove the screw (2) that fastens the fuel pipe guide fasteners.
  • Page 73 Fuel system Atlantic 500 Unscrew and remove the three screws (10) that fasten the intake manifold (11) to the head. Remove the intake manifold (11) and throttle unit (12). Unscrew and remove the three screws (13) that fasten the throttle unit (12) to the intake manifold (11).
  • Page 74 Cooling system Atlantic 500 Cooling system chap. 5 Release 00 2002-09...

  • Page 75: System Description

    Cooling system Atlantic 500 SYSTEM DESCRIPTION The cooling system is comprised of a centrifugal pump that is coaxial to the countershaft and for this reason, it makes the same number of revolutions as the engine shaft. The pump has two intake pipes and one outlet pipe.
  • Page 76 Cooling system Atlantic 500 REMOVING THE RADIATOR Read carefully (COOLANT) and (PRECAUTIONS AND GENERAL INFORMATION). Empty the coolant completely, see (REPLACING COOLANT), in the ENGINE WORKSHOP MANUALS n°1063 , n°1064 , n°1065 , n°1066 , n°1067 and n°1068 Remove the leg shield, see (REMOVING THE LEG SHIELD).
  • Page 77 Cooling system Atlantic 500 REMOVING THE EXPANSION TANK Read carefully (COOLANT) and (PRECAUTIONS AND GENERAL INFORMATION). Position the motorcycle on the center stand. Remove the front outer shield, see (REMOVING THE FRONT OUTER SHIELD). Remove the leg shield, see (REMOVING THE LEG SHIELD).
  • Page 78 Cooling system Atlantic 500 THERMOSTAT VALVE For information on the thermostat valve, see ENGINE WORKSHOP MANUAL n°1063 , n°1064 n°1065 , n°1066 , n°1067 and n°1068 COOLANT PUMP For information on the coolant pump, see ENGINE WORKSHOP MANUAL n°1063 , n°1064 n°1065...
  • Page 79 Cooling system Atlantic 500 chap. 5 Release 00 2002-09...
  • Page 80 Electrical system Atlantic 500 Electrical system chap. 6 Release 00 2002-09...

  • Page 81: Checking The Recharge System

    Electrical system Atlantic 500 CHECKING THE RECHARGE SYSTEM Refer to the following key when consulting this section. CABLE COLOURS orange light blue blue white yellow grey brown black green violet pink CHECKING THE RECHARGE VOLTAGE • Check the electrolyte level (see CHECKING THE ELECTROLYTE LEVEL).

  • Page 82: Checking Alternator Continuity

    Electrical system Atlantic 500 CHECKING THE ALTERNATOR CONTINUITY With the engine off: • Remove the right side panel, see (REMOVING THE SIDE PANELS). • Disconnect the regulator wires connector (1). • Using a portable tester, test the continuity be- tween the yellow wires (G) of the stator.

  • Page 83: Ignition System

    Electrical system Atlantic 500 IGNITION SYSTEM FUEL INJECTION SUPPLY WIRING DIAGRAM Ar/N R/Gr Ar/N Ar/V STAND SPIA Gr/N SWITCH CAVALLETTO POMPA INIETTORE BOBINA FUEL FUEL COIL BENZINA BENZINA INJECTOR PUMP Main fuel injection relay 10) Secondary fuel injection relay 11) Side stand switch...
  • Page 84 Electrical system Atlantic 500 CHECKING THE STAND SWITCH The rotation of the side stand (1) must be free of any impediments. Make the following checks: • The springs (2) must not be damaged, worn, rusty or weakened. • The stand must rotate freely; grease the joint if necessary, see (LUBRICANT CHART).
  • Page 85 Electrical system Atlantic 500 CHECKING THE FUEL INJECTION RELAY To check the working state of the relay switch, pro- ceed as follows: • Remove the rider’s saddle, see (REMOVING THE RIDER’S SADDLE). • Energize (12V) the two male terminals (85-86).

  • Page 86: Ignition/Fuel Injection System

    Electrical system Atlantic 500 IGNITION/FUEL INJECTION SYSTEM CONNECTIONS TO THE ELECTRONIC CONTROL UNIT ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! x1000r/min mp/h Km/h TRIP 13 14 15 7 8 9 10 11 12 13 14 15...
  • Page 87 Electrical system Atlantic 500 CAUTION Since there are diodes, condensers and other electrical components inside the C.D.I. control unit, the measuring method indicated is approximate. We recommend carrying out another check by replacing the control unit with another perfectly operating unit, or by carrying out the checks listed in the chapter (CHECKING THE ELECTRICAL SYSTEM FROM THE C.D.I.
  • Page 88 Electrical system Atlantic 500 CONNECTIONS TO THE E.C.U. CONTROL UNIT RATED CABLE TERMINAL COMPONENT VALUE COLOURS 680 Ω RPM Sensor 7 - 12 B - B/N 52 Ω Stepper Motor 14 - 24 Az - Ro 52 Ω Stepper Motor...
  • Page 89 Electrical system Atlantic 500 CHECKING THE HT COIL • Remove the left side inspection cover (see REMOVING THE LEFT INSPECTION COVER). • Disconnect the terminal (1). • Unscrew and remove the two screws (2). • Disconnect the spark plug cap (3).
  • Page 90 Electrical system Atlantic 500 CHECKING THE DROP SENSOR With the engine off: • Remove the front cover, see (REMOVING THE FRONT COVER). Check that the sensor (1) is correctly fitted (with the arrow printed on the rubber element facing upwards).
  • Page 91 Electrical system Atlantic 500 CHECKING THE RPM SENSOR With the engine off: • Disconnect the three-way connector (1) and carry out the relevant measurements. Use a tester (scale x 100 Ω) to measure the • resistance between the sensor terminals, respect- ing the relevant polarity (see figure).
  • Page 92 Electrical system Atlantic 500 CHECKING THE THROTTLE POTENTIOMETER (ACCELERATOR SENSOR) With the engine off: • Disconnect the three-way sensor (black) (1). CAUTION On reassembly, make sure that the electric con- nector (1) is correctly coupled. • Set the ignition switch to “ ”.
  • Page 93 Electrical system Atlantic 500 CHECKING THE FUEL INJECTOR With the engine off: • Disconnect the two-way connector (black) (1) and carry out the relevant measurements (on the injector-side terminals). Use a tester (scale x 100 Ω) to measure the •...
  • Page 94 Electrical system Atlantic 500 CHECKING THE FUEL PUMP (direct current) • Energize terminals 1 and 4 of the pump connector with 12 V DC. • Check that the pump operates, emitting its charac- teristic buzzing sound, and check that the supply pressure on the pressure gauge reaches at least 150 KPa (1.5 bars).

  • Page 95: Starter And Stop Light System

    Electrical system Atlantic 500 STARTER AND STOP LIGHT SYSTEM R/Gr Ar/V Main injection relay 11) Side stand switch 19) Battery 20) Starter relay 21) Starter motor 24) Secondary fuses 33) Rear stop light switch 34) Front stop light switch 35) Key commutator...
  • Page 96 Electrical system Atlantic 500 CHECKING THE STARTER RELAY • Disconnect the two-way connector (1) (white). CAUTION On reassembly, make sure that the electrical connector (1) is correctly coupled. • Slide the relay (2) from its hooks. • Slide out the two rubber protections (3-4).
  • Page 97 Electrical system Atlantic 500 7) ENGINE STOP SWITCH ( Wires R/Gr 8) STARTER BUTTON ( ) Wires 9) IGNITION SWITCH Wires G/Gr R/Bi PUSH 10) FRONT STOP LIGHT SWITCH Wires Gr/N 11) REAR STOP LIGHT SWITCH Wires 10 11 12) SIDE STAND SWITCH...

  • Page 98: Electric Cooling Fan

    Electrical system Atlantic 500 ELECTRIC COOLING FAN WIRING DIAGRAM Vi/N 15) Water thermistor 16) Fan 19) Battery 24) Secondary fuses 35) Key commutator 38) Fan relay 52) E.C.U. control unit CHECKING THE CONDITION OF THE ELECTRIC FAN • To check the working state of the fan (1): •...
  • Page 99 Electrical system Atlantic 500 CHECKING THE WATER THERMISTOR See (CHECKING THE CONDITION OF THE COOL- ANT THERMISTOR) on page 6-14. CHECKING THE FANS RELAY To check the working state of the relay, proceed as follows: • Remove the rider’s saddle, see (REMOVING THE RIDER’S SADDLE).

  • Page 100: Coolant Temperature And Fuel Level Gauge

    Electrical system Atlantic 500 COOLANT TEMPERATURE AND FUEL LEVEL GAUGE WIRING DIAGRAM ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! x1000r/min mp/h Km/h TRIP 2 3 4 5 6 7 8 9 10 11 12...

  • Page 101: Water Temperature

    Electrical system Atlantic 500 WATER TEMPERATURE CHECKING THE DASHBOARD • Disconnect the connector of the water thermistor and connect (from the connector side) an electrical resistor between the orange/red and black/white cables. • Turn the key to ON and check the signal on the dash- board.
  • Page 102 Electrical system Atlantic 500 LIGHTING AND SOUND SIGNAL SYSTEM WIRING DIAGRAM SCROLL PASSING STOP R/Bi G/Gr R/Bi 19) Battery 22) Main fuses 24) Secondary fuses 25) Helmet compartment light 26) Helmet compartment switch 27) License plate light 31) Stop/position light...
  • Page 103 Electrical system Atlantic 500 DIRECTION INDICATORS AND DISPLAY DATA WIRING DIAGRAM ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! SCROLL x1000r/min mp/h Km/h PASSING STOP TRIP 29) Right rear direction indicator 30) Left rear direction indicator...
  • Page 104 After the first 1,000 Km and every 6,000 Km there- after, the message SERVICE appears on the display. In this case contact an aprilia dealer to carry out the operations described in the scheduled mainte- nance chart, see pages 2-3 (SCHEDULED MAINTE- NANCE CHART).
  • Page 105 Electrical system Atlantic 500 RESETTING THE AVERAGE SPEED, MAXIMUM SPEED, FUEL CONSUMPTION LEVELS AND STOPWATCH VALUES NOTE the corresponding information may be reset only if the right digital display shows the odometer. Hold down the key (1) (TRIP/RESET) for more than /RESET three seconds.
  • Page 106 Electrical system Atlantic 500 VISUAL SIGNALS AND SPEEDOMETER WIRING DIAGRAM ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! x1000r/min mp/h Km/h TRIP 13 14 15 7 8 9 10 11 12 13 14 15...
  • Page 107 Electrical system Atlantic 500 CHECKING THE DASHBOARD • If the dashboard is working correctly, when the ignition switch is in the “ ” position, the red LED “ ” of the oil pressure should light up. CHECKING THE SENSOR •...
  • Page 108 Electrical system Atlantic 500 SPEEDOMETER • Check the correct coupling of the speed sensor connector (1). • Check the correct coupling of the dashboard connectors (2). • Check the distance between the speed sensor (3) and the screws (4) that fasten the front brake disc.
  • Page 109 Electrical system Atlantic 500 AIR TEMPERATURE SENSOR To check the working state of the air temperature sensor, proceed as follows: • Disconnect the two-way connector (1). • Check the sensor in an environment with a con- trolled temperature of 68 °F (20 °C).
  • Page 110 Electrical system Atlantic 500 SWITCHES Using a portable tester, check the continuity of the switches, and refer to the specific table for each switch. Replace the switch if it is faulty. 1) HORN BUTTON ( ) MODE Wires 2) DIRECTION INDICATOR SWITCH (...
  • Page 111 Electrical system Atlantic 500 CHANGING BULBS WARNING Before changing a bulb, turn the ignition switch to the “ ” position and wait a few minutes so that the bulb cools down. 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.
  • Page 112 Electrical system Atlantic 500 BATTERY For safety standards and general information about the battery, see (BATTERY). For all other information, see (CHECKING THE ELECTROLYTE LEVEL), (RECHARGING THE BATTERY) and (LEAVING THE BATTERY IDLE FOR LONG PERIODS). ACTIVATING THE BATTERY Carefully read (BATTERY).
  • Page 113 Electrical system Atlantic 500 HIGH BEAM BULBS • Turn the bulb socket/bulb (8) counter-clockwise and remove it from the reflector seat. CAUTION To remove the bulb socket/bulb from the connec- tion, be especially careful not to damage the two tabs (9).
  • Page 114 Electrical system Atlantic 500 CAUTION During the following operations do not pull or force the electrical cables. • Pull out the set of taillights (4), first removing the upper part and then distancing it from the housing. CAUTION Work very carefully.
  • Page 115 Electrical system Atlantic 500 CHANGING THE LICENSE PLATE LAMP BULB Carefully read (BULBS). To replace: CAUTION Do not pull on the wires to remove the bulb socket. • Grasp the socket (1), pull it and remove it from its seat.
  • Page 116 Electrical system Atlantic 500 • Loosen and remove the two screws (3) that fasten the protective shield (4) of the third stop light. • Slide the all-glass bulb (5) from its socket. • Correctly fit a bulb of the same type.
  • Page 117 NOTE If a fuse blows frequently, there is probably a short circuit or overload in the electrical system. In this case see an aprilia dealer. • Check the fuses whenever an electric component does not work or works irregularly, or if the vehicle fails to start.
  • Page 118 Electrical system Atlantic 500 SECONDARY FUSE LAYOUT (FRONT HOOD) 15A Fuse (2) – From voltage regulator to: injection, rear brake/start- ing lights logic (Seat A on the wiring diagram). – 15A Fuse (3) From ignition switch to: engine kill, rear brake lights logic (Seat B on the wiring diagram).
  • Page 119 Electrical system Atlantic 500 ELECTRIC COMPONENTRY POSITIONS 28) Radio power supply 3) Stepper motor 30) Left rear direction indicator 4) Coil 31) Parking/brake lamps 5) Spark plug 33) Rear stop switch 6) Fuel injector 39) Left dimmer switch 11) Side stand switch...
  • Page 120 Electrical system Atlantic 500 ELECTRIC COMPONENTRY POSITIONS 31) Parking/brake lamps 2) rpm sensor 32) Right taillight 7) Fuel pump 34) Front stop switch 8) Fuel level probe 35) Key selector switch 9) Main injection relay (with diode) 36) Overturn sensor...
  • Page 121 Electrical system Atlantic 500 WIRING DIAGRAM SCOOTER ATLANTIC 500 CC 6-42 chap. 6 Release 00 2002-09...
  • Page 122 Electrical system Atlantic 500 Wiring diagram legend WIRE COLOR Multiple connectors Ar orange rpm sensor Az light blue Stepper motor B blue Coil Bi white Spark plug G yellow Fuel injector Gr grey Fuel pump M brown Fuel level probe...
  • Page 123 Electrical system Atlantic 500 6-44 chap. 6 Release 00 2002-09...
  • Page 124 Cycle parts Atlantic 500 Cycle parts chap. 7 Release 00 2002-09...
  • Page 125 Cycle parts Atlantic 500 BODYWORK REMOVING THE PASSENGER FOOTBOARDS Place the motorcycle on the center stand. CAUTION Proceed with care. Unscrew and remove the 3 screws (1). Remove the passenger footboard (2). REMOVING THE BOTTOM GUARD Place the motorcycle on the center stand.
  • Page 126 Cycle parts Atlantic 500 REMOVING THE SADDLE Place the motorcycle on the center stand. Lift the saddle (4), see (UNLOCKING/LOCKING THE SADDLE). CAUTION Proceed with care. Use suitable pincers to slide out the clip (5). CAUTION Keep the saddle raised to prevent it from falling freely.
  • Page 127 Cycle parts Atlantic 500 REMOVING THE RIGHT AND LEFT INSPECTION COVERS Place the motorcycle on the center stand. Remove the right or left mat (1) by lifting it with your hands. Unscrew and remove the screw (2). CAUTION Proceed with care.
  • Page 128 Cycle parts Atlantic 500 Using a flathead screwdriver (3), prize the speaker cover (4) away from its seat, as shown in the figure. Remove the speaker cover (4). Unscrew and remove the two screws (5). CAUTION Proceed with care. Do not damage the tabs and/or corresponding tab slots.
  • Page 129 Cycle parts Atlantic 500 Pull the tabs (7) towards the cable (9), in order to lift and free the cable end (8). Pull the cable (9) in the di- rection shown by the arrow in order to free the leg shield from the storage compartment closure.
  • Page 130 Cycle parts Atlantic 500 REMOVING THE PASSENGER HANDLES Place the motorcycle on the center stand. CAUTION Proceed with care. Do not damage the tabs and/or corresponding tab slots. Handle painted parts carefully, without scraping or damaging them. Lift the saddle, see (UNLOCKING/LOCKING THE SADDLE).
  • Page 131 Cycle parts Atlantic 500 REMOVING THE CHROME-PLATED SIDE PANEL STRIP Remove the complete side panel, see (REMOVING THE WHOLE SIDE PANELS). CAUTION Proceed with care. Do not damage the tabs and/or corresponding tab slots. Handle painted parts carefully, without scraping or damaging them.
  • Page 132 Cycle parts Atlantic 500 REMOVING THE FOOTREST Place the motorcycle on the center stand. Remove the rubber footrest cover (1) by lifting it off manually. Remove the sparkplug access cover (A). CAUTION Proceed with care. Do not damage the tabs and/or corresponding tab slots.
  • Page 133 Cycle parts Atlantic 500 REMOVING THE FRONT SHIELD Remove the splash guard, see (REMOVING THE SPLASH GUARD). Remove the leg shield, see (REMOVING THE LEG SHIELD). CAUTION Proceed with care. Do not damage the tabs and/or corresponding tab slots. Handle painted parts carefully, without scraping or damaging them.
  • Page 134 Cycle parts Atlantic 500 Unscrew and remove the 7 screws (3). Disconnect the electric connection (4). Remove the support arch (5). Lift and remove the plastic part (6) of the backrest. REMOVING THE REAR MUDGUARD Place the motorcycle on the center stand.
  • Page 135 Cycle parts Atlantic 500 Still holding the rear mudguard, disconnect the license plate light bulb (5), slide out the battery bleeder pipe (6) from its guide clip (7). Remove the rear mudguard (4). REMOVING THE REAR PART OF THE FAIRING...
  • Page 136 Cycle parts Atlantic 500 REMOVING THE FOOTREST SUPPORT AND BOTTOM SPLASH GUARD Remove the leg shield, see (REMOVING THE LEG SHIELD). Remove the central tunnel, see (REMOVING THE CENTRAL TUNNEL). Unscrew and remove the two screws (1). Remove the chrome-plated protection pipe (2).
  • Page 137 Cycle parts Atlantic 500 REMOVING THE FRONT HOOD Place the motorcycle on the center stand. Unscrew and remove the two screws (1). CAUTION Proceed with care. Do not damage the tabs and/or corresponding tab slots. Handle painted parts carefully, without scraping or damaging them.
  • Page 138 Cycle parts Atlantic 500 Unscrew and remove the two screws (4) on the left and right of the vehicle. Remove the top handlebar cover (5). REMOVING THE BOTTOM HANDLEBAR COVER Remove the top handlebar cover, see (REMOVING THE TOP HANDLEBAR COVER).
  • Page 139 Cycle parts Atlantic 500 Remove the front hood, see (REMOVING THE FRONT HOOD). Remove the windshield, see (REMOVING THE WINDSHIELD). Unscrew and remove the screw (4). Lift away the complete dashboard (5), disconnect the electric connections (6) directly from the dashboard.
  • Page 140 Cycle parts Atlantic 500 REMOVING THE COMPLETE LIGHT UNIT Remove the front hood, see (REMOVING THE FRONT HOOD). Remove the windshield, see (REMOVING THE WINDSHIELD). Remove the front shield, see (REMOVING THE FRONT SHIELD). Remove the complete dashboard, see (REMOVING THE COMPLETE DASHBOARD).
  • Page 141 Cycle parts Atlantic 500 REMOVING THE HELMET COMPARTMENT Remove the saddle, see (REMOVING THE SADDLE). Remove the central tunnel, see (REMOVING THE CENTRAL TUNNEL). Remove the left and right side panels (see REMOV- ING THE WHOLE SIDE PANELS). Unscrew and remove the two screws (1), making sure to keep the relevant washers.
  • Page 142 Cycle parts Atlantic 500 Slide the starter relay (6) out from its seat in the battery compartment. Use a hand to support the relay and slide off the rubber protection cap (7). Unscrew and remove the nut (8). Slide the cables from the helmet compartment out to the rear.
  • Page 143 Cycle parts Atlantic 500 Unscrew and remove the two screws (18). Unscrew and remove the four screws (19) of the carburetor cover (20). Remove the carburetor cover (20). Use the screw (21) to loosen the clamp (22) and slide out the fuel suction hose (23) by pulling it outwards.
  • Page 144 Cycle parts Atlantic 500 NOTE Be sure to have prepared a new clamp to replace the old one. Remove the hose clamp (26) and slide out the pipe (27). Remove the engine cover (25) by lifting it upwards. Disconnect the electric connection (28) of the helmet compartment light switch.
  • Page 145 Cycle parts Atlantic 500 FRONT WHEEL 1) Wheel pin 2) Km counter sensor 3) Right external spacer 4) Right oil seal 5) Right bearing 6) Wheel 7) Internal spacer 8) Left bearing 9) Left oil seal 10) Left brake disc...
  • Page 146 Cycle parts Atlantic 500 REMOVING THE FRONT WHEEL Read carefully (PRECAUTIONS AND GENERAL INFORMATION). CAUTION Take care not to damage the brake hoses, disc and pads when removing/refitting the wheel. Place the motorcycle on the center stand. WARNING Position a block or support under the motorcycle...
  • Page 147 Cycle parts Atlantic 500 CHANGING THE BEARINGS Read carefully (PRECAUTIONS AND GENERAL INFORMATION). CAUTION Each time they are disassembled the bearings must be checked and, if necessary, renewed. Clean both sides of the hub with a cloth. Removal Work from the left side of the vehicle:...
  • Page 148 Cycle parts Atlantic 500 INSPECTION CAUTION Inspect the condition of all the components, especially those listed below. Bearings Turn the inner ring (1) by hand; it should rotate without blocking and/or making any noise. There should be no axial play. Bearings that show signs of these problems must be replaced.
  • Page 149 Cycle parts Atlantic 500 REFITTING THE FRONT WHEEL CAUTION Be careful not to damage the brake lines, disc and pads when refitting. Position the wheel between the fork rods. Insert the wheel pin (1) from the right side of the vehicle.
  • Page 150 Cycle parts Atlantic 500 REAR WHEEL 1) Complete wheel 2) Spacer 3) Oil retainer 4) Brake caliper/exhaust support plate 5) Nut 7-27 chap. 7 Release 00 2002-09...
  • Page 151 Cycle parts Atlantic 500 REMOVING THE REAR WHEEL Read carefully (PRECAUTIONS AND GENERAL INFORMATION). Place the motorcycle on the center stand. WARNING Wait until the engine and exhaust muffler cool down completely. Remove the exhaust muffler, see (REMOVING THE EXHAUST MUFFLER).
  • Page 152 Cycle parts Atlantic 500 REMOVING THE EXHAUST MUFFLER Read carefully (PRECAUTIONS AND GENERAL INFORMATION). Place the motorcycle on the center stand. WARNING Wait until the engine and exhaust muffler cool down completely. Loosen the clamp (1) using the relevant lock nut that fastens the exhaust muffler to the manifold.
  • Page 153 Cycle parts Atlantic 500 INSPECTION CAUTION Inspect the condition of all the components, especially the ones listed below. Bearings Rotate the internal ring (1) manually: there must be no catching or noise. There must be no end float. Any bearings not meeting these requirements must be renewed.
  • Page 154 Cycle parts Atlantic 500 1) Brake lever 2) Brake fluid pump/tank 3) Brake fluid tube 4) Braking delaying device 5) Brake caliper breather valve 6) Tube union screw 7) Brake calliper 8) Brake pads 9) Brake disc 7-31 chap. 7...
  • Page 155 Cycle parts Atlantic 500 CHANGING THE BRAKE PADS Read carefully (PRECAUTIONS AND GENERAL INFORMATION). Place the motorcycle on the center stand. NOTE Perform the following operations on both sides. Unscrew and remove the screw (1). Unscrew and remove the two screws (2) and free the brake caliper (3).
  • Page 156 Cycle parts Atlantic 500 CHECKING THE BRAKE DISC CAUTION This check must be done with the brake disc installed on the wheel. Make a visual check of the brake disc surface. If there are any lines or signs of wear, replace the disc, see (REMOVING THE BRAKE DISC).
  • Page 157 Cycle parts Atlantic 500 1) Brake lever 2) Brake fluid pump/tank 3) Brake fluid tube 4) Valve 5) Tube union screw 6) Brake calliper 7) Pad pin 8) Collar 9) Brake pads 10) Anti-vibration springs 11) Pad springs 12) Brake disc 7-34 chap.
  • Page 158 Cycle parts Atlantic 500 CHANGING THE BRAKE PADS Read carefully (PRECAUTIONS AND GENERAL INFORMATION). Remove the rear brake caliper, see (REMOVING THE REAR BRAKE CALIPER). Remove the collar (1). Slide out the pin (2). Remove the spring (3). CAUTION As the pads slide out, the vibration-damping plates will slide out with them.
  • Page 159 Cycle parts Atlantic 500 CHECKING THE BRAKE DISC CAUTION This check must be done with the brake disc installed on the wheel. Make a visual check of the brake disc surface. If there are any lines or signs of wear, replace the disc, see (REMOVING THE BRAKE DISC).
  • Page 160 Cycle parts Atlantic 500 STEERING For information on checking and adjusting the steer- ing, see (CHECKING AND ADJUSTING THE STEER- ING). Removal Read carefully (PRECAUTIONS AND GENERAL INFORMATION). Remove the handlebar cover, see (REMOVING THE TOP HANDLEBAR COVER) and (REMOVING THE BOTTOM HANDLEBAR COVER).
  • Page 161 Cycle parts Atlantic 500 NOTE Perform the following operation from the left side of the vehicle also. Unscrew and remove the two screws (11). Free the brake caliper (12) from the fork. CAUTION Do not engage the front brake lever after removing the brake caliper;...
  • Page 162 Cycle parts Atlantic 500 INSPECTION OF THE BEARINGS CAUTION Check that the parts are in proper working order. Make sure that the area coming into contact with the balls (1) (on the rotating (2) and fixed (3) seats) is not damaged or excessively worn.
  • Page 163 Cycle parts Atlantic 500 1) Fork base 13) Dust guard gasket 2) Fork clamp screws 14) Retaining ring 3) Snap ring 15) Gasket seal 4) Rubber cap 16) Retainer cap 5) Seal plug 17) Bushing 6) Brake pipe gland 18) Left wheel support 7) “GACO”...
  • Page 164 Cycle parts Atlantic 500 CHECKING THE OIL LEVEL If fork “end of travel” is found, the level of the rod oil must be checked. Remove the front shield, see (REMOVING THE FRONT SHIELD). NOTE To facilitate removal of the two seal plugs (3), they must both be removed at the same time.
  • Page 165 Cycle parts Atlantic 500 REMOVING THE ROD-WHEEL SUPPORT ASSEM- BLY (with fork fitted) Place the motorcycle on the center stand. CAUTION Place a suitable support under the vehicle in order to prevent it from falling. Remove the front mudguard, see (REMOVING THE FRONT MUDGUARD).
  • Page 166 Cycle parts Atlantic 500 DISASSEMBLING THE ROD-WHEEL SUPPORT CAUTION Check the oil quantity. Read carefully (PRECAUTIONS AND GENERAL If less than 13.72 cu. in (225 cm ) top up or replace. INFORMATION). Unscrew and remove the screw (6) (bottom of wheel To disassemble the small parts: rubber cap (1), retain- support) and be sure to keep the copper washer (7).
  • Page 167 Cycle parts Atlantic 500 CHECKING THE PARTS The sliding surface must not be lined and/or scratched. If the lines are deep, replace the rod. Use a dial gauge to check that any curving in the rod is less than the limit value.
  • Page 168 Cycle parts Atlantic 500 REAR SUSPENSION SPRING PRELOADING SETTING TABLE Adjusting Rotation Rotation ring nut (arrow A) (arrow B) Spring Spring Function preload decrease preload increase The vehicle is The vehicle is Attitude less rigid more rigid Recommended Smooth or...
  • Page 169 Cycle parts Atlantic 500 7-46 chap. 7 Release 00 2002-09...
  • Page 170 G.Galilei, 1 30033 Noale (VE) Italy tel. +39 041.5829111 fax +39 041.5829190 www.serviceaprilia.com...

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