VESPA 90 Operation And Maintenance Download Page 8 | Manualshive

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Summary of Contents for 90

Page 1: ...J JP ppointment o i 3lo al igfJne55 e 3iulte of celJinfJutg j luppIitts of 1 Tespa tootets OPERATION AND MAINTENANCE ...

Page 2: ...IJi5 nopaI JIJig ne5 5 e auke of binbutg 35 lIppIiet5 of 17espa tootttS OPERATION AND MAINTENANCE DOUGLAS SALES SERVICE LTD KINGSWOOD BRISTOL Telephone 67 1881 DIVISION OF THE WESTINGHOUSE BRAKE AND SIGNAL COMPANY LIMITED ...

Page 3: ...re parts exclusively All VESPA sparesare madeofthe samematerial have undergone the same machining steps and inspections as the components of your VESPA This means guarantee for long life and normal performance of your machine and for your personal safety Special care should be taken with regard to fuel mixture which should consist of a good quality petrol and oil of make grade and in the amount pr...

Page 4: ...to date in due course modification that may occur concerning machine units and parts or delivery of accessories that the Firm deems to be convenient on improvement purposes or for what may concern manufacturing or commercial requirements 3 Introduction page 2 Lubrication chart page 28 Layout of controls 5 Operating instructions Faultfind Technicaldata 6 ing 32 Identification detai I 10 Engine desc...

Page 5: ...Fig I Vespa 90 4 ...

Page 6: ... gear change twist grip 2 Front brake lever 3 Throttle twist trip 4 Main switch unit 5 Front brake shoes 6 Rear brake pedal 7 Kickstarter 8 Gear selector and gear control adjusting screws 9 Rear brake shoe 10 Clutch 11 Carburettor and air cleaner 12 Choke control 13 Fuel Tap 5 ...

Page 7: ...ound clearance Turning radius Total dry weight 995 mm 39 17 225 mm 8 85 1650mm 64 9 70 Kg 157 Ibs Engine Displacement 88 5 C c 5 4 cu in Bore 47 mm 1 85 Stroke 51 mm 2 0 Compression ratio I 7 2 Two stroke rotary distribution H T flywheel magneto coil ignition Spark advance 19 J 1 before T D C Sparking plug Recommendations see p 38 Note The fuel consumption and maximum speed figures must not be acc...

Page 8: ...ine section I Group carburettor air cleaner 2 Piston J Crankshaft 4 Clutch 5 Mainshaft and gear pinion assy 6 Gear shlfter 7 Flywheel magneto 8 Kicksurter 9 Crankcase swinging arm clutch side pivoted to frame 7 ...

Page 9: ... I I l Fig 4 Steering lock I Normal position 2 Locked position Fig 5 Dual Seat for pivoting the seat on its forward edge push thl lever indicated by arrow 8 ...

Page 10: ...B J A Open the fuel tap B Select neutral C Pull out the Choke control rod with cold engine D Bring throttle twist grip to idling position E Depress the Kickstarter Fig 6 Starting Instructions 9 ...

Page 11: ...ers must be quoted spare parts number identify by law these when ordering Each vehicle bears a Serial No with a specific production series stamped on the frame and engine as indicated in figs 21 and 22 Fig 21 Serial number stamped on engine Fig 22 Serial number stamped on frame 10 ...

Page 12: ...wise direction up to the limit stop rotate the key and push in wards so that it thrusts the sliding bar against the steering column To ease the insertion of the sliding bar into the hole of the steering column slightly turn the handlebars from the limit stop clockwise To release the handlebars insert the key in the lock turn it to the left and pull it back then tu rn the hand lebars in the normal ...

Page 13: ...ke control back to its normal position With the engine running at idling speed declutch and rotate the gear change twist grip to the position of first gear fig 6 For setting the vehicle in motion slowly let in the clutch and gradually open the throttle Close the throttle declutch and rotate the gear change grip to a higher or lower gear as the case may be fig 7 NOTES In case of hard starti ng see ...

Page 14: ... Up to I 000 miles the machine should never be driven at a speed exceeding 35 m p h It is important of course at all times never to let the engine labour but during its early life it is doubly important Use your gear box freely never under any circumstances allow the motor to work hard After first 600 miles change oil in gear box see page 28 and check that all nuts and bolts are tight 13 ...

Page 15: ...Gear change cables 4 Gear shllter 5 Selector grou p 6 Ist gear 7 2nd gear 8 Top gear 9 Helical gear 10 Clutch 11 Main shalt 12 Stirrup lor gear change N B The position I 2 3 on the gear change twist grip corres pond respectively co bottom 2nd and 3rd gear the 0 indicates neutral ...

Page 16: ...osed 2 Throttle slide set screw 3 Slow running adjuster screw 4 Slow running jet S Starter valve 6 Slow running jet air Bleed 7 Air filter 8 Main let air Bleed 9 Starter jet 10 Float 11 Main jet 12 Throttle slide 13 Inlet port 14 Transfer ports 15 Exhaust port 14 7 8 11 10 15 ...

Page 17: ...gine several times Screw in the sparking plug securely open the fuel tap and kick over the engine ADJUSTMENTS ON CARBURETTOR For adjusting the idling speed turn the slow running adjuster screw fig 8 No 2 On the carburettor body a set screw is provided for adjusting the throttle cable play this screw is to be reset only if necessary or on dismantling and re assembly operations On the carburettor bo...

Page 18: ...Fig 9 Removing wheel from vehicle Fig 10 Brake adjustment 17 ...

Page 19: ...Fig 11 Tyre removal 18 ...

Page 20: ...re has to be removed first deflate and then remove the nuts joining the two wheel rims fig 11 Adjust set screws indicated in fig 10 keeping in mind that when the brake lever or pedal are in the off position the wheels should rotate freely the braking action should begin immediately on operating the respective controls NOTES The front and rear wheel are inter changeable one with another on conditio...

Page 21: ...Steering column and ront suspension 2 Engine 3 Crankcase dutch side with sWinging arm pivoted to frame 4 Rear supsension spring and hydraulic damper assy S Bolt securing carburettor 6 Bolt securing damper of rear suspension 7 Nut securing engine 20 ...

Page 22: ... oil run the engine a few minutes to ensure thorough circulation and cleaning and drain off again Afterwards refill gear case with new oil up to level of the filling hole For dismantling the air filter fig 14 pivot the seat on its forward edge fig 5 remove the tool kit and the control cable of the choke mechanism the cable end ring can be seen on Fig 14 then disconnect the NOTES On reassembling th...

Page 23: ...I I iJo I I 22 Fig 13 Dismantling spark plug ...

Page 24: ...Fig 14 To approach the carburettor and air cleaner O sy see Instructions at page 24 I 23 ...

Page 25: ... and swivel down the engine on its own bearer bracket The cylinder head can then be eased away from the unit by unscrewing the 4 securing bolts by means of a box wrench It is advisable when carrying out this operation to place a wooden platform underneath the rear end of the chassis foot board so as to obtain greater rear wheel lift than is possible by the use of the stand and at the same time ade...

Page 26: ...nder head piston crown and cylinder ports Ensure that residual carbon deposits do not remain inside the cylinder Clean the exhaust pipe using a suitable scraper Every 8000 Km 4800 miles I Change oil in gear case see lubrication chart 2 Remove the rubber plug on front suspension No 3 fig 18 and refill with grease the housingof the front wheel axle bearingand speedometer drive gear 3 Remove the air ...

Page 27: ...3 Fig 16 Ignition circuit Fig 17 Setting contact breaker points I Flywheel coU 2 Flywheel cam 3 Contact breaker 4 Con denser 5 Sparking plug 6 Engine cut out switch A Point gap 0 011 to 0 019 26 ...

Page 28: ... the kickstarter three or four times 3 Drain off all fuel contained in the fuel tank then grease over all unpainted metallic parts next raise the wheels off the ground by placingwooden chocks under the footboard CLEANING THE MACHINE For cleaning the exposed surface of the engine use paraffin a brush and clean rags The painted surfaces of the machine should be sponged down with water and dried off ...

Page 29: ... 30 Energol SAE 30 Front suspension Felt pad on flywheel Control cables cam Essa Joints on brake Gear change Retinax A Energrease L 2 Multi purpose Castrolease L M Mobilgrease M control quadrant Grease H Speedo flexible drive Shell 2T Two Energol Two Essolube 30 in Castrol XL in Mobiloil A Stroke Oil in Stroke Oil in ratio of 2 or ratio of 2 or ratio of 2 ratio of 2 or ratio of 2 or t pint to Ihal...

Page 30: ...Fig 18 Lubrication scheme A Engine lubricated by fuel mixture 2 by volume I Oil filler hole 2 Oildrain ing hole 3 Rubber plug of speedometer drive gear housing MOTOR OIL 30 SAE GREASE SEE CHART 29 ...

Page 31: ...an be obtained both inflated to correct pressures See Chart page horizontally and vertically as follows 11 The horizontal distance equivalent is 16 6 and the vertical equivalent is 2 10 2 11 Fig 19 Adjustment of head lamp N B Dimension110 corresponds to adjustment carried out with driver and passenger on the machine 30 ...

Page 32: ...ns on the Vespa slacken the set screw securing the head lamp then move the latter as required in order that the beam axis coincides with point 0 on the wall Tighten the screw firmly 1 This operation can be carried out also with the driver only sitting on the seat In this case of course the beam alignment should be altered whenever the scooter is being ridden by both driver and passenger 31 ...

Page 33: ... dogged or dirty Remove wash in petrol and blow dry Engine flooding Air cleaner choked or dirty See page 16 Sparking plug dirty a Porcelain of sparking plug cracked Disconnect the plug lead Check if sparking occurs between lead and crankcase when the kickstarter is operated Breaker points dirty worn or pitted gap between breaker points Consult your Dealer incorrect VARIOUS RUNNING DEFECTS I Lack o...

Page 34: ...s disengage of own accord Kickstarter a55Y not mesh ing Defective operation of controls and steering Defective suspension Defective braking 5 Defective electrical equipment Wire terminals disconnected or incorrectly connected Headlight beam incorrectly set Remedies Wash in pure petrol airblastdry Free off choke control and lubricate Consult your Dealer Consult you Dealer Carefully check and connec...

Page 35: ...hree way tap closed open re serve Clutch see fig 3 multiplate on the lay shaft The unit is operated by lever located on L H handlebars and adjustable cable Gear box see fig 7 three speed drive with constant mesh gears Operated by the twist grip on L H handlebar which functions in conjunction with the clutch control lever Transmission ratio engine to driving wheel Bottom gear I 17 18 2nd gear I 9 6...

Page 36: ...itted with 3 00 10 tyres Brakes cable operated expanding type Front brake is operated by hand lever R H handlebars the rear brake is pedal operated on R H footboard Parking stand a two legged stand with a central return spring Steering lock the locking device operates by mean of a sliding bar engaging in the steering column STANDARD TOOL KIT Wrenches I box wrench 11 17 21 mm 2 single open ended wr...

Page 37: ...WIRING DIAGRAM 1 6 1 1 85 7 9 9 9 3 36 I Black 2 White 3 Green 4 Red 5 Violet 6 Brown 7 Blue 8 Pink 9 Yellow ...

Page 38: ...c trical connections see Fig at the present page Fig 20 Light and dip switch 0 I 2 Switching lever posir ions O Lights off I Pilot light and tail lamp on 2 Head light front parking light and tail amp on A Main and dipped beam switch 8 Horn button M Engine cut out 37 ...

Page 39: ... 20 Following groups are fed The headlamp dia 105 mm 4 15 has a 25 25 W bulb main and dipped beam and a 5 W Pilot light bulb The rear lamp is provided with a 5 W bulb red pilot light and white light for registration plate and a Stop light 10 W Horn SPARK PLUG RECOMMENDATIONS Make KLG A c LODGE CHAMPION BOSCH Type FaO M42F 2HN L SI W 240T I Gap 0 023 0 022 0 023 0 023 0 023 38 ...

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