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SERVICE STATION MANUAL 664787-664795 (IT-EN-FR-DE-ES-PT-NL-EL) Vespa S 50 2T...
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SERVICE STATION MANUAL Vespa S 50 2T The descriptions and illustrations given in this publication are not binding. While the basic specifications as described and illustrated in this manual remain unchanged, PIAGGIO-GILERA reserves the right, at any time and without being required to update this publication 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.
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SERVICE STATION MANUAL Vespa S 50 2T This service station manual has been drawn up by Piaggio & C. Spa to be used by the workshops of Piaggio-Gilera dealers. It is assumed that the user of this manual for maintaining and repairing Piaggio vehicles has a basic knowledge of mechanical principles and vehicle repair technique procedures.
INDEX OF TOPICS CHAR HARACTERISTICS TOOL OOLING MAIN AINTENANCE TROUBL ROUBLESHOOTING ELE SYS LECTRICAL SYSTEM ENG VE NGINE FROM VEHICLE NGINE SUSP USPENSIONS BRAK SYS RAKING SYSTEM CHAS HASSIS PRE DE DELIVERY TIME...
Vespa S 50 2T Characteristics 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;...
Vespa S 50 2T Characteristics WEIGHTS AND DIMENSIONS Specification Desc./Quantity Kerb weight 96 ± 4 kg Maximum weight allowed 290 kg Maximum height 1.140 mm Width 740 mm Wheelbase 1.290 mm Length 1.755 mm Engine ENGINE Specification Desc./Quantity Type single-cylinder, two-stroke Cubic capacity 49 cm³...
Vespa S 50 2T Characteristics Secondary air Follow these steps to clean the sponge filters of the secondary air system: 1) Remove the snap-on plastic cover (1) on the transmission cover using a small screwdriver as a lever on the retaining tongues in order to insert one of the three slots found on that cap.
Vespa S 50 2T Characteristics Specification Desc./Quantity Minimum nozzle: Minimum air nozzle (on the body): Free Initial minimum mix screw opening: 1 1/2 Starter jet Starter air nozzle (on the body): Ø 1.5 Stroke of starter pin: 11 mm Gasoline inlet hole Ø...
Vespa S 50 2T Characteristics FRAME ASSEMBLY Name Torque in Nm Swinging arm to engine pin locknut 33 ÷ 41 Swinging arm to chassis pin locknut 44 ÷ 52 Shock absorber to chassis fixing nut 20 ÷ 25 Swinging arm plate to chassis screw 33 ÷...
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Vespa S 50 2T Characteristics Crankcase - crankshaft - connecting rod AXIAL CLEARANCE BETWEEN CRANKCASE, CRANKSHAFT AND CONNECTING ROD Name Description Dimensions Initials Quantity Connecting rod 11.750-0.05 clearance E = 0.25 to 0.50 shoulder washer 0.5 ± 0.03 clearance E = 0.25 to 0.50 - clearance F =...
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Vespa S 50 2T Characteristics Products RECOMMENDED PRODUCTS TABLE Product Description Specifications AGIP ROTRA 80W-90 Rear hub oil SAE 80W/90 Oil that exceeds the re- quirements of API GL3 specifications AGIP CITY HI TEC 4T Oil to lubricate flexible transmissions...
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Vespa S 50 2T Tooling TOOLS Stores code Description 001330Y Tool for fitting steering seats 001467Y006 Pliers to extract 20 mm bearings 001467Y009 Driver for OD 42-mm bearings 001467Y013 Pliers to extract ø 15-mm bearings 001467Y014 Pliers to extract ø 15-mm bearings...
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Vespa S 50 2T Tooling Stores code Description 006029Y Punch for fitting fifth wheel seat on steer- ing tube 020004Y Punch for removing fifth wheels from headstock 020055Y Wrench for steering tube ring nut 020150Y Air heater support 020151Y Air heater...
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Vespa S 50 2T Tooling Stores code Description 020166Y Pin lock fitting tool 020261Y Starter spring fitting 020265Y Bearing fitting base 020325Y Brake-shoe spring calliper 020329Y MityVac vacuum-operated pump 020330Y Stroboscopic light to check timing TOOL - 19...
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Vespa S 50 2T Tooling Stores code Description 020331Y Digital multimeter 020332Y Digital rev counter 020333Y Single battery charger 020334Y Multiple battery charger TOOL - 20...
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Vespa S 50 2T Tooling Stores code Description 020335Y Magnetic support for dial gauge 020350Y Electrical system check instrument 020359Y 42x47-mm adaptor 020376Y Adaptor handle 020412Y 15 mm guide TOOL - 21...
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Vespa S 50 2T Tooling Stores code Description 020456Y Ø 24 mm adaptor 020565Y Flywheel lock calliper spanner 001467Y029 Bell for bearings, O.D. 38 mm 020037Y Punch 020036Y Punch TOOL - 22...
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Vespa S 50 2T Tooling Stores code Description 020021Y Front suspension service tool 020038Y Punch 020074Y Support base for checking crankshaft alignment 004499Y001 Bearing extractor bell 004499Y006 Bearing extractor ring TOOL - 23...
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Vespa S 50 2T Tooling Stores code Description 004499Y002 Bearing extractor screw 004499Y007 Half rings 020171Y Punch for driven pulley roller bearing 020340Y Flywheel and transmission oil seals fitting punch 020360Y Adaptor 52 x 55 mm 020358Y 37x40-mm adaptor 020362Y...
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Vespa S 50 2T Tooling Stores code Description 020363Y 20 mm guide 020365Y 22 mm guide 020439Y 17 mm guide 020441Y 26 x 28 mm adaptor 020452Y Tube for removing and refitting the driven pulley shaft TOOL - 25...
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Vespa S 50 2T Tooling Stores code Description 020451Y Starting ring gear lock 020444Y Tool for fitting/ removing the driven pulley clutch TOOL - 26...
Vespa S 50 2T Maintenance Checking the spark advance -Check to be made at over 4000 rpm with strobo- scopic gun. The advanced ignition measured must be 17° before the TDC. - This value is correct when the reference mark on...
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Vespa S 50 2T Maintenance CAUTION THE SPARK PLUG MUST BE REMOVED WHEN THE EN- GINE IS COLD. REPLACE THE SPARK PLUG AS INDICA- TED IN THE SCHEDULED MAINTENANCE TABLE. USING NON-COMPLYING IGNITION CONTROL UNITS OR SPARK PLUGS OTHER THAN THOSE PRESCRIBED MAY SERI- OUSLY DAMAGE THE ENGINE.
Vespa S 50 2T Maintenance Replacement -Remove the oil filler cap «A». - Unscrew the oil drainage cap "B" and drain out all the oil. - Screw the drainage plug again to the prescribed torque and refill the hub with the recommended oil.
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Vespa S 50 2T Maintenance transmissions - Adjust the control cables: Mix cable: see procedure indicated in "Mixer tim- ing". Throttle cable: adjust the set screw on the carbu- rettor in such a way that the sheath has no back- lash.
Vespa S 50 2T Maintenance Level check - Rest the vehicle on its centre stand on flat ground. - The brake fluid reservoir has a sight glass «A» made of transparent material; the quantity of liquid contained in the sight glass indicates the level of fluid in the reservoir.
Vespa S 50 2T Maintenance - Remove the reservoir cover «C» by loosening the two fixing screws «D» and refill with the prescribed brake fluid type only and without exceeding the maximum level. CAUTION ONLY USE DOT 4-CLASSIFIED BRAKE FLUID.
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Vespa S 50 2T Maintenance 3. If otherwise, adjust the right headlight with screw «A». N.B. THE ABOVE PROCEDURE COMPLIES WITH THE EURO- PEAN STANDARDS REGARDING MAXIMUM AND MINI- MUM HEIGHT OF LIGHT BEAMS. REFER TO THE STATU- TORY REGULATIONS IN FORCE IN EVERY COUNTRY WHERE THE vehicle IS USED.
Vespa S 50 2T Troubleshooting This section makes it possible to find the solutions to use in troubleshooting. For each breakdown, a list of the possible causes and respective interventions is given. Engine Poor performance OOR PERFORMANCE Possible Cause Operation...
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Vespa S 50 2T Troubleshooting Possible Cause Operation spark plug and the spark plug grounded but away from its hole. Refit a dry spark plug and start the vehicle. Altered fuel characteristics Drain off the fuel no longer up to standard; then, refill...
Vespa S 50 2T Troubleshooting High fuel consumption HIGH FUEL CONSUMPTION Possible Cause Operation Air filter blocked or dirty. Clean according to the procedure Starter inefficient Check: electric wiring, circuit continuity, mechanical sliding and power supply SAS malfunctions SLACKENING OF THE RUBBER JOINT OF THE SECONDARY AIR PIPE ON THE MUF-...
Vespa S 50 2T Troubleshooting Brakes overheating BRAKES OVERHEATING Possible Cause Operation Defective sliding of pistons Replace the calliper. Brake disc or drum deformed Using a dial gauge, check the planarity of the disk with the wheel correctly fitted or the concentricity of the rear drum.
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Vespa S 50 2T Troubleshooting Possible Cause Operation lock-nuts, the limit switch rubber buffers and the movement bushings. Suspension oil leakage IL LEAKAGE FROM SUSPENSION Possible Cause Operation Oil leakage from suspension Service the pumping members and check the sleeves and sealing rings are in good conditions.
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Vespa S 50 2T Electrical system 1. Electronic ignition device 2. Magneto flywheel - Pick-up 3. Key switch 4. Voltage regulator 5. 7.5A Fuse 6. 12V - 9Ah Battery 7. Starter motor 8. Start-up remote control switch 9. Horn button 10.
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Vespa S 50 2T Electrical system 20. Front light A. Tail light bulb B. High-/low-beam light bulb 21. Front right turn indicator 22. Fuel level transmitter 23. Instrument panel A. Turn indicator warning light B. Headlight warning light C. Instrument panel lighting bulbs D.
Vespa S 50 2T Electrical system Checks and inspections All the control operations of the system that entail disconnecting cables (to check connections and the devices making up the ignition circuit) must be done with the engine off: if this is not done, the controls might be irreparably damaged.
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Vespa S 50 2T Electrical system Voltage regulator check Voltage regulator The malfunctioning of the voltage regulator might cause the following problems depending on the type of fault: 1) Lighting system bulbs burn out. 2) Lighting system is not working.
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Vespa S 50 2T Electrical system FAULT 3 After checking that there are no short circuits in the system towards earthing with the engine off and the regulator connector detached, replace the reg- ulator because it is certainly inefficient, and re- place the protection fuse.
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Vespa S 50 2T Electrical system FAULT 5 (FIG. E) If the turn indicators do not work, proceed as follows: - Remove the regulator connector, and insert the tester probes between the contact 5 (yellow-red) and the ground lead. - Turn the key switch to ON and check that the battery is getting voltage.
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Vespa S 50 2T Electrical system - If no voltage is detected for terminal number 4, replace the regulator. - If there is voltage for terminal number 4, check both the installation and the bulb of the oil warning light.
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Vespa S 50 2T Electrical system Fuses The electrical system is protected by a plug fuse «B» located to the left of the battery compartment. The ignition system, headlight and the rear light are not fuse-protected. Before replacing a blown fuse, find and solve the problem that caused it to blow.
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Vespa S 50 2T Electrical system Dry-charge battery WARNING THE BATTERY ELECTROLYTE IS POISONOUS AS IT MAY CAUSE SERIOUS BURNS. IT CON- TAINS SULPHURIC ACID. AVOID CONTACT WITH THE EYES, THE SKIN AND CLOTHING. IF COMING INTO CONTACT WITH EYES OR SKIN, WASH ABUNDANTLY WITH WATER FOR AP- PROX.
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Vespa S 50 2T Electrical system If it is necessary to refit the battery in the vehicle, be careful not to reverse the connections, remem- bering that the earth wire (black) marked (-) must be connected to the - negative terminal while the other two red wires marked (+) must be connected to the terminal marked with the + positive sign.
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Vespa S 50 2T Electrical system 3)- Within the following 24 hours, recharge with the specific battery charger (single) or (multiple) at a density of about 1/10 of the battery nominal capacity and until the acid density is about 1.27, corre- sponding to 31º...
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Vespa S 50 2T Electrical system MAGNETO FLYWHEEL CONNECTOR 1. Pick-up (Red) 2. Voltage regulator (Yellow) 3. Battery positive (Blue) 4. Voltage regulator (Yellow-Blue) 5. Ground (White) 6. Electronic ignition device (Green) ELECTRONIC IGNITION DEVICE CONNECTOR 1. Pick-up (Red) 2. Ground (Black and White) 3.
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Vespa S 50 2T Electrical system INSTRUMENT PANEL CONNECTOR «A» 1. Right turn indicator warning light (White-Blue) 2. Left turn indicator warning light (Pink) 3. Positive from voltage regulator (Yellow-Black) 4. Ground (Black) INSTRUMENT PANEL CONNECTOR «B» 1. Live Positive (White) 2.
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Vespa S 50 2T Engine from vehicle Exhaust assy. Removal - Remove the 2 fixing nuts from the manifold to the head - Unscrew the 2 screws fixing the muffler to the housing; then remove the whole muffler paying at- tention to the interference between its supporting bracket and the cooling cover.
Vespa S 50 2T Engine Automatic transmission Transmission cover - Loosen the 15 screws and remove the transmis- sion cover with the aid of a mallet. N.B. THE CRANKCASE IS SLIGHTLY BLOCKED BY THE TIGHT FIT BETWEEN THE SHAFT OF THE DRIVEN HALF-PULLEY AND THE BEARING HOUSED ON THE CRANKCASE.
Vespa S 50 2T Engine WHILE REMOVING THE TOOTHED SECTOR, BE VERY CAREFUL OF THE SPRING TENSION: IT COULD CONSTI- TUTE A HAZARD FOR THE OPERATOR. - Remove the screws shown in the figure and re- move the engine starting lever.
Vespa S 50 2T Engine Removing the driven pulley - Lock the clutch bell housing with the specific tool. - Remove the nut, the clutch bell housing and the whole of the driven pulley assembly. N.B. THE UNIT CAN ALSO BE REMOVED WITH THE DRIVE PULLEY MOUNTED.
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Vespa S 50 2T Engine - Using a 34 mm socket wrench remove the clutch locking nut. - Loosen the central screw thereby undoing the driven pulley unit - Separate the components. Specific tooling 020444Y Tool for fitting/ removing the driven...
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Vespa S 50 2T Engine - Remove the three guide pins and the mobile half pulley. Removing the driven half-pulley bearing - Remove the roller bearing with the special ex- tractor inserted from the bottom of the fixed half- pulley.
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Vespa S 50 2T Engine Stationary driven half-pulley/Standard diame- Ø 33.965 to 33.985 mm Stationary driven half-pulley / Minimum diam- eter admitted after use Ø 33.96 mm Inspecting the driven sliding half-pulley - Remove the 2 inner sealing rings and the two O- rings.
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Vespa S 50 2T Engine Refitting the driven half-pulley bearing - Fit a new ball bearing with the specific tool. - Fit the ball bearing retention snap ring. - Fit the new roller bearing with the wording visible from the outside.
Vespa S 50 2T Engine - Reassemble the nut securing the clutch and tight- en to the prescribed torque. CAUTION SO AS NOT TO DAMAGE THE CLUTCH NUT USE A SOCK- ET WRENCH WITH SMALL CHAMFER. CAUTION POSITION THE NON-CHAMFERED SURFACES OF THE...
Vespa S 50 2T Engine Removing the driving pulley - Lock the driving pulley using the appropriate tool. - Remove the central nut with the related washer, then remove the drive and the plastic fan. - Remove the stationary half-pulley.
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Vespa S 50 2T Engine the metallic insert does not come out of the plastic shell borders. 4) Check the integrity of the sliding blocks of the contact plate. - Check that the internal bushing shown in the fig- ure is not abnormally worn and measure inside diameter «A».
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Vespa S 50 2T Engine - Refit the particular components of the assembly (roller container assembly with bushing, limiting washer, stationery half-pulley, cooling fan belt with drive, washer and nut). - With the specific tool tighten the lock-nut to the prescribed torque and then perform a final 90°...
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Vespa S 50 2T Engine Removing the wheel axle - Remove the intermediate gear and the complete gear wheel axle. - When removing the intermediate gear pay atten- tion to the various shim adjustments. Removing the wheel axle bearings - Remove the oil seal and the seeger ring.
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Vespa S 50 2T Engine - Position the special tube on the internal raceway of the bearing and from the shaft toothed side as indicated in the figure. Expel the driven pulley shaft with the aid of a press. Specific tooling...
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Vespa S 50 2T Engine • Heat the hub cover and insert the bearing with the specific punch. • Fit the snap ring with the concave or radial part on the bearing side. N.B. FIT THE BALL BEARING WITH THE SHIELD FACING THE OIL SEAL.
Vespa S 50 2T Engine Locking torques (N*m) Rear hub cap screw 12 ÷ 13 Flywheel cover Cooling hood - Remove the four fixings shown in the figure. - Remove the fan cover - Remove the oil piping retention band from the...
Vespa S 50 2T Engine Cooling fan - Remove the cooling fan by acting on the three fixings indicated in the figure. Removing the stator - Remove the three stator fixings shown in the photo - Remove the two pick-up fixings shown in the...
Vespa S 50 2T Engine Removing the starter motor Remove the two clamps shown in the figure Removing the flywheel magneto - Lock the rotation of the flywheel using the calliper spanner. - Remove the nut. CAUTION THE USE OF A CALLIPER SPANNER OTHER THAN THE ONE SUPPLIED COULD DAMAGE THE STATOR COILS - Extract the flywheel with the extractor.
Vespa S 50 2T Engine Refitting the flywheel magneto - Fit the flywheel being careful to insert the key properly. - Lock the flywheel nut at the prescribed torque - Check the Pick-Up air gap. - The air gap may not be modified in the fitting of the Pick-Up.
Vespa S 50 2T Engine Removing the cylinder head Remove the 4 screws shown in the figure Removing the cylinder - piston assy. Remove the cylinder very carefully Remove the snap rings and remove the pin CAUTION AFTER EACH REMOVAL OPERATION REPLACE THE PIN...
Vespa S 50 2T Engine Inspecting the small end - Measure the internal diameter of the small end using an internal micrometer. N.B. IF THE DIAMETER OF THE ROD SMALL END EXCEEDS THE MAXIMUM DIAMETER ALLOWED, SHOWS SIGNS OF WEAR OR OVERHEATING REPLACE THE CRANKSHAFT AS DESCRIBED IN THE "CRANKCASE AND CRANK-...
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Vespa S 50 2T Engine - Measure the outer diameter of the piston, per- pendicular to the pin axis. - Take the measurement in the position shown in the figure To classify the cylinder-piston fitting, check the ap- propriate table See also Cylinder - piston assy.
Vespa S 50 2T Engine Removing the piston - Position the snap ring in detail 1 with the opening straddling the arrow printed on the tool. -Push detail 2 into detail 1 until the stop and extract detail 2. - Insert detail 3 into detail 1, position the assembly in the snap ring assembly area, and push detail 3 all the way in.
Vespa S 50 2T Engine Inspecting the timing system components CAUTION CHECK THE CORRECT REED UNIT SEAL; NO LIGHT MUST PASS BETWEEN THE SUPPORT AND LAMELLA. Crankcase - crankshaft Splitting the crankcase halves Remove the eight crankcase union fasteners. ENG - 89...
Vespa S 50 2T Engine Install the special strip on the half crankcase on the flywheel side and separate the half crankcase on the flywheel side from the transmission side Specific tooling 020163Y Crankcase splitting plate Removing the crankshaft - Install the specific tool on the half crankcase on the transmission side using four M6 screws of an adequate length.
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Vespa S 50 2T Engine - Using the specific tool remove any bearings left on the half crankcase Specific tooling 001467Y007 Driver for OD 54 mm bearing 001467Y006 Pliers to extract 20 mm bearings Refitting the crankshaft bearings Heat the bearings in an oil bath at around 150°C...
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Vespa S 50 2T Engine Refitting the crankshaft - Position the transmission side half crankcase on two wooden supports - Using a thermal gun, heat the bearing seat to about 120° - Firmly insert the crankshaft until the bearing rea-...
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Vespa S 50 2T Engine Refitting the crankcase halves - Prepare the coupling surface with LOCTITE 510 applying a thin layer of it after degreasing the sur- face using a suitable solvent (e.g. trichloroethy- lene) - Heat the flywheel-side half crankcase with a ther- mal gun.
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Vespa S 50 2T Engine Lubrication Crankshaft oil seals Refitting - Install a new flywheel-side oil seal only with the special tool's punch The flywheel-side oil seal is recognised by its smaller diameter N.B. THE USE OF THE SPECIFIC TOOL IS NOT COMPATIBLE...
Vespa S 50 2T Engine Remove the tube passage seal from the crank- case shown in the figure Refitting To refit, perform the steps in the reverse direction to disassembly Remember to drain after refitting using the screw shown in the figure Fuel supply - Completely empty the gas tank.
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Vespa S 50 2T Engine - Disconnect the fuel supply and the suction taking pipe from the carburettor. - Check that there are no fuel leaks between the two tubes. - Close the fuel outlet pipe. - By means of the MITIVAC pump apply 0.1 bar of suction to the tap.
Vespa S 50 2T Suspensions This section is devoted to operations that can be carried out on the suspension. Front Removing the front wheel - Support the scooter adequately. - Loosen the five screws fixing the wheel to the hub.
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Vespa S 50 2T Suspensions - Remove the wheel hub. - Remove the ball bearing check seeger ring indi- cated in the photograph Extract the ball bearing using the specific tool Specific tooling 001467Y014 Pliers to extract ø 15-mm bearings...
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Vespa S 50 2T Suspensions - Remove the roller bearing using the specific tool Specific tooling 020376Y Adaptor handle 020456Y Ø 24 mm adaptor 020363Y 20 mm guide - Heat the roller bearing seat with a heat gun - Use the specific tool to introduce and push the...
Vespa S 50 2T Suspensions Refitting the front wheel - When refitting, tighten the 5 screws to the speci- fied torque Locking torques (N*m) Wheel rim screws 20 ÷ 25 Handlebar Removal Remove the handlebar cover before carrying out this operation,.
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Vespa S 50 2T Suspensions Removal After removing the upper seat, lean the vehicle on one side and extract the steering tube completely from the fork. Specific tooling 020055Y Wrench for steering tube ring nut Overhaul Servicing the front suspension-steering assembly,...
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Vespa S 50 2T Suspensions To remove the second NADELLA, use the tool fit- ted with part 2 instead of part 1, on the side oppo- site the one shown in the figure. N.B. DURING THE REMOVAL OPERATIONS DESCRIBED ABOVE, THE ROLLER BUSHINGS ARE DESTROYED WHEN THE EXTRACTOR IS USED.
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Vespa S 50 2T Suspensions - Repeat the above operation using the tool with part 16 and part 22, instead of part 4, always fitted to the stem, on the side opposite that indicated in the figure to fit the second wedging washer - roller bushing - sealing ring unit.
Vespa S 50 2T Suspensions Refitting CAUTION USE NEW ROLLER CASINGS, PIN, SEALING RINGS AND DUST GUARDS FOR REFITTING. When fitting the fork, lubricate with the steering bearing tracks with the recommended grease. Tighten the lower ring nut "A" and the upper ring nut "B"...
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Vespa S 50 2T Suspensions Removal - Support the scooter adequately. - Remove the wheel hub. - Loosen the shock absorber lower clamps and re- move the brake calliper shock absorber support. - Loosen the screws fixing the front brake pipe re- tainer clamp and the odometer cable in order to reach the upper clamps.
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Vespa S 50 2T Suspensions Refitting To refit, carry out the removal operations in reverse order, observing the prescribed tightening torques. Locking torques (N*m) Lower shock absorber clamping screw 20 - 27 Upper shock absorber fixing nut 20-30 Shock-absorber - calliper bracket...
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Vespa S 50 2T Suspensions Overhaul - The bracket for the shock absorber -calliper at- tachment has two roller bearings separated one from the other as shown in the photograph - Remove the two roller bearings from the bracket with the specific tool operating on the shock ab-...
Vespa S 50 2T Suspensions - Assemble a new roller bearing on the shock ab- sorber side and move it until it stops using the specific tool Specific tooling 020036Y Punch - Suitably hold the brake calliper - shock absorber...
Vespa S 50 2T Suspensions N.B. TO REMOVE THE LOWER SEAT OF THE LOWER STEERING BEARING JUST USE A SCREW- DRIVER AS A LEVER BETWEEN THE SEATING AND THE SLEEVE. Specific tooling 020004Y Punch for removing fifth wheels from headstock...
Vespa S 50 2T Suspensions - Unscrew the nut fixing the wheel axle and collect the washer. Refitting the rear wheel - To refit, follow the removal steps but in reverse order; be careful to tighten to the prescribed tor- que.
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Vespa S 50 2T Suspensions Removal - Support the scooter adequately. - Remove the central tunnel inspection door. - To remove the upper clamp from the chassis, proceed as follows: - Unscrew the pin and collect the washer. - Remove the cap from the lower part.
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Vespa S 50 2T Suspensions - Working on both sides, remove the cover caps. - Working on the right side, unscrew the side fixing nut to the chassis and collect the washer. - Working on the left side, remove the pin.
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Vespa S 50 2T Suspensions - Working on the left side, release the pin from the spring shown. - Remove the fixing pin to the engine and collect the spacer. - Now the swinging arm is free. - Remove the swinging arm from the vehicle; first release it from the engine side and then from the chassis side.
Vespa S 50 2T Suspensions Refitting For rifting, respect the locking torques Locking torques (N*m) Swinging arm to engine pin locknut 33 ÷ 41 Swinging arm to chassis pin locknut 44 ÷ 52 Swinging arm plate to chassis screw 33 ÷ 41...
Vespa S 50 2T Suspensions Refitting - To fit, follow the removal steps but in reverse order; be careful to tighten to the prescribed torques. Locking torques (N*m) Shock absorber/engine pin torque 33 to 41 N·m Shock absorber/frame nut torque 20 to 25 Nm...
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INDEX OF TOPICS BRAK SYS RAKING SYSTEM...
Vespa S 50 2T Braking system Front brake calliper Removal - Remove the front wheel. - Undo the two fixing screws to the shock absorber - calliper support. N.B. SHOULD IT BE NECESSARY TO REPLACE THE CALLIP- ER, FIRST LOOSEN THE FITTING CONNECTING THE PIPE TO THE BRAKE CALLIPER.
Vespa S 50 2T Braking system Refitting - Carry out the operations in the reverse order from the removal being careful to respect the direction of disc rotation shown by the arrow printed on it - Tighten the 5 screws to the specified torque...
Vespa S 50 2T Braking system Characteristic Minimum thickness allowed after use: 4 mm Disc thickness at wear limit (front) 3.5 mm Max. deviation allowed: 0.1 mm - If a value other than that prescribed is detected, replace the disc and check again.
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Vespa S 50 2T Braking system - Pads must be replaced when the friction material thickness reaches the wear limit. - To replace: remove the protection cover, the bolt and the leaf spring. Slide off the pads and replace them once the plungers are down.
Vespa S 50 2T Braking system Front - Remove the rubber cap from the bleed screw. - Insert a rubber pipe in the bleed screw to permit the brake fluid to be recovered. - With the right-hand brake lever, load the system and bring it up to the required pressure.
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Vespa S 50 2T Braking system when it is fully empty, the level of fluid in the res- ervoir is below the MIN level. N.B. THE LEVEL TENDS TO DROP AS THE BRAKE PADS GET WORN, A MINIMUM LEVEL SHOULD NOT BE REACHED.
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Vespa S 50 2T Braking system CAUTION ALL THE SEALS AND GASKETS MUST BE REPLACED EVERY TIME THE PUMP IS SERVICED. 1. Reservoir cap screw 2. Reservoir cap. 3. Diaphragm. 4. Bellows. 5. Sealing ring 6. Piston. 7. Gasket. 8. Spring.
Vespa S 50 2T Braking system Rear drum brake Once the muffler and the wheel have been re- moved, follow these steps: - Remove the shoe spring using the specific pliers. - Remove the shoes with the help of a lever.
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Vespa S 50 2T Chassis Seat - Lift the saddle and remove the helmet compart- ment «A». - Undo the two screws indicated. Rear handlebar cover - Remove the front handlebar cover. - Undo the three screws indicated in figure fixing it to the handlebar, the odometer transmission and the electrical connectors.
Vespa S 50 2T Chassis Instrument panel - Remove the rear handlebar cover. - Undo the three screws indicated fixing the rear handlebar cover. Front handlebar cover Proceed as follows: -Remove the rear-view mirrors. - Undo the two screws «A».
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Vespa S 50 2T Chassis Headlight assy. - Remove the front handlebar cover. - Undo the four screws indicated fixing the front handlebar cover. Knee-guard - Undo the five screws indicated. - Remove the rubber strip from both sides and un- do the indicated screw.
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Vespa S 50 2T Chassis Taillight assy. - Undo the two fixing screws and remove the rear light unit. - Undo the screw indicated and disconnect the connector. Footrest - Remove the shield back plate. - Remove the side fairings.
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Vespa S 50 2T Chassis - The fixing screw at the front. - Remove the footrest. Side fairings - Undo the screw «A» and the smaller screw «B». - Detach the seats on the fairing. CHAS - 131...
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Vespa S 50 2T Chassis License plate holder - Remove the side fairings. - Working on both sides, undo the two screws in- dicated. - Remove the license plate light. Air filter - Remove the helmet compartment. - Remove the side fairings.
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Vespa S 50 2T Chassis Fuel tank - Adequately support the rear part of the scooter. - Remove the wheel and the rear mudguard. - Remove the battery compartment. - Disconnect the fuel outlet pipe. - Undo the two fixing screws to the chassis and collect the fuel pipe supporting plate.
Vespa S 50 2T Chassis - Remove the tank. Front mudguard - First remove the steering tube and uncouple the front brake pipes from the calliper in order to re- move the front mudguard - Remove the three mudguard-steering tube...
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Vespa S 50 2T Chassis - Undo the two screws indicated. - Remove the front central cover, sliding it up- wards. CHAS - 135...
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Vespa S 50 2T Pre-delivery - Starter CAUTION TO ENSURE MAXIMUM PERFORMANCE, THE BATTERY MUST BE CHARGED BEFORE USE. INADEQUATE CHARGING OF THE BATTERY WITH A LOW LEVEL OF ELECTROLYTE BEFORE IT IS FIRST USED SHORTENS BATTERY LIFE. WARNING BEFORE RECHARGING THE BATTERY, REMOVE THE CAPS OF EACH CELL.
Vespa S 50 2T Pre-delivery Static test Static control after the test ride: - Starting when warm - Starter operation - Minimum hold (turning the handlebar) - Uniform turning of the steering - Possible leaks CAUTION CHECK AND ADJUST TYRE PRESSURE WITH TYRES AT AMBIENT TEMPERATURE.
Vespa S 50 2T Time Air cleaner AIR CLEANER Code Action Duration 004122 Air cleaner carburettor fitting - Re- placement 001014 Air filter - Replacement / cleaning 001015 Air filter box - Replacement TIME - 155...
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Vespa S 50 2T Time Frame RAME Code Action Duration 004001 Chassis - Replacement 004023 Shield rim - Replacement 004149 Shield central cover - Replacement 004159 Plates / Stickers - Replacement 004012 Rear side panels - Replacement 004059 Spark plug inspection flap - Replace-...
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Vespa S 50 2T Time Centre-stand TAND Code Action Duration 004004 Stand - Replacement 004102 Side stand - Replacement 004179 Stand buffer - Replacement TIME - 157...
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Vespa S 50 2T Time Footrests OOTREST Code Action Duration 004178 Footrest - Replacement 004078 Front/rear footrest rubber - Replace- ment TIME - 158...
Vespa S 50 2T Time Underseat compartment HELMET COMPARTMENT Code Action Duration 004016 Helmet compartment - Replacement 005046 Battery cover - change 004011 Central chassis cover - Replacement 004071 Battery compartment - replacement TIME - 160...
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Vespa S 50 2T Time Plate holder LICENSE PLATE HOLDER Code Action Duration 004136 License plate support - Replacement 005048 Licence plate holder - Replacement 005032 Licence plate light glass - Replace- ment TIME - 161...
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Vespa S 50 2T Time Mudguard MUDGUARDS Code Action Duration 004002 Front mudguard - Replacement 004009 Rear mudguard - Replacement TIME - 162...
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Vespa S 50 2T Time Fuel tank FUEL TANK Code Action Duration 004168 Fuel tank cap - Replacement 005010 Tank float - Replacement 004112 Cock-carburettor hose - Replace- ment 004005 Fuel tank - Replacement 004007 Fuel valve - Replacement 004109...
Vespa S 50 2T Time Turn signal lights TURN INDICATOR LIGHTS Code Action Duration 005002 Front headlamp - Replacement 005012 Front turn indicator - Replacement 005067 Front turn indicator bulb - Replace- ment 005008 Front headlamp bulbs - Replacement 005005...
Vespa S 50 2T Time Front wheel FRONT WHEEL Code Action Duration 004123 Front wheel - Replacement 003047 Front tyre - replace 003037 Front wheel rim- Replacement 003033 Front wheel hub- Replacement 002041 Front brake disc - Replacement 003034 Front wheel hub bearing - Replace-...
Vespa S 50 2T Time Braking system BRAKING SYSTEM Code Action Duration 002021 Front brake hose - Remov. and Re- fitt. 002007 Front brake shoes/pads - Remov. and Refitt 002039 Front brake calliper - Removal and Refitting 002047 Front brake fluid and air bleeding...
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Vespa S 50 2T Time Secondary air box SECONDARY AIR HOUSING Code Action Duration 001164 Crankcase secondary air connection - Replacement 001161 Secondary air filter - Replacement / Cleaning 001162 Secondary air housing - Replace- ment 001163 Muffler secondary air connection -...