VESPA 90 Installation guide

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OPERATION AND MAINTENANCE

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OPERATION AND MAINTENANCE

DOUGLAS (SALES & SERVICE) LTD., KINGSWOOD, BRISTOL

Telephone 67-1881

DIVISION OF THE WESTINGHOUSE BRAKE AND SIGNAL COMPANY LIMITED

NOTICE

We trust that your Vespawill give you excellent service, and will satisfyyour every need.

This booklet, in which the simple instructions for operation and maintenance can be found,

will enable you to understand and use your machine in the most advantageous manner.

To keep your VESPA in perfect running order and not to invalidate the guarantee offered

by the contract, it is advisable to entrust repairs only to retailers or authorised service stations.

Demand original VESPAspare parts exclusively., All VESPAsparesare madeofthe samematerial,

have undergone the same machining steps and inspections as the components of your VESPA.

This meansguarantee for long lifeand 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 prescribed inthis booklet, page28.

SERVICE EXCHANGE

Ask your Dealer for full particulars relating to the Service Exchange Scheme. The use of

the facilities we offer through this medium ensures an economical, speedy, and reliable means

of carrying out repairs when such become necessary.

INDEX OF MAIN DIRECTIONS

The descriptions and illustrations in this booklet are not to be taken as binding on the Manufacturer. The essential

features of the model described and illustrated herein remaining unaltered, Douglas (Sales & Service) Ltd. reserve

therefore the right to carry out at any moment, without being obliged to bring this booklet up..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 2Lubrication chart ... .. . ... page 28

Layout of controls ... ... .. 5Operating instructions: Faultfind-

Technicaldata 6ing ... ... ... ... .. 32

... ... ... ..

Identification detaiI ... ... .. 10 Engine: description ... ... .. 34

Operating instruction ... ... .. 11 Chassis: description 34

... ... ..

Tyre pressures ... ... ... .. 11

Running-in 13 Wiring diagram ... ... ... .. 36

... ... ... ..

Maintenance ... ... ... .. 16 Electricalequipment ... ... .. 38

Fig. I - Vespa 90

Fig.2 - Installationofcontrols and transmissions

I. Clutch control (lever) and gear change (twist grip) - 2. Front

brake lever - 3. Throttle twist trip. 4. Main switch unit. 5. Front

brake shoes- 6. Rearbrake 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

TECHNICAL DATA

Consumption: (CUNA Standards) approx.

156 mls.jimp. gal.. petrol-oil mixture i.e.

2% oil.

Max. Speed: (CUNA Standards) 43.5 m.p.h.

Carrying capacity 2 persons

Range 174miles

Max fuel capacity: 1.15 imp galls. incl. 0.15

imp. galls. reserve

DIMENSIONS

Wheel base

Handlebar width

Total length

1160mm. (45.2")

610 mm. (23.9")

1650mm. (64.9")

Max. height

Min. ground 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. -

(Bore47 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 accepted as binding.

Manyfactors outside our control can considerably affect them once the machine is in the hands

of the owner and on the road.

Fig. 3 .. Engine 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

lFig. 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).

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

Table of contents

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