VESPA 152 Installation guide

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152 L2 MODEL

OPERATION AND MAINTENANCE

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152 L2 MODEL

OPERATION AND MAINTENANCE

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INTRODUCTORYNOTE

In accordance with Douglas(Sales&Service)Ltd.policy of progressiveimprovement,the right is

reserved to alter any details of price, specification, accessories, and equiPment,

without notice, and without incurring any obligation.

BE ~-WISE

To keep your Vespa in perfect running order, it is advisable to entrust repairs only to

authorised Douglas Dealers. We point out that the use of parts other than original "Douglas"

Spares will invalidate your Guarantee.

Specialcare should be taken to ensure that the oil/petrol ratio isalways in strict accordance

with our recommendations.

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 ofcarrying out repairs when such become necessary.

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

Telephone 67-1881/9

DIVISION OF THE WESTINGHOUSE BRAKE AND SIGNAL COMPANY LIMITED

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Fig. I. Vespa 125,

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Fig. 2. Vespa controls.

1. Gear change twistgrip with clutch control lever. 2. Front brake lever.

5. Front brake iaws. 6. Rear brake pedal. 7. Kickstarter. 8. Gear shifter.

air cleaner. 12. Choke control lever. 13. Fuel taD.

3. Throttle control grip. 4. Light and dip switch.

9. Rear brake jaws. 10. Clutch. IJ. Carburettor.

IDENTIFICATION DATA

Serial numbers with prefixes are stamped on

both engine and frame, in the position indi-

cated on Fig. 3.

Such numbers and prefixes identify the

Vespa as prescribed by law and are r.epeated

on the test card and other documents of the

scooter.

They must be quoted when ordering spares.

Fig. 3. Stamping on frame (I) and engine (2).

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TECHNICAL DATA

Fuel consumption at economic speed

Up to 120miles per imp. gal.

Max. speed

Carrying capacity

46.5 m.p.h.

2 persons

and 22 Ibs. of luggage

Up to 200 miles

Range

.ENGINE

Single horizontal cylinder, two-stroke, with

reverse flow scavenge and deflector piston.

Bore 54mm 2.126'

Stroke 54mm 2.126'

Displacement 123.67cc. 7.48cu. in.

Compression ratio . 6.3 to I

The engine is pivoted to the chassisof scooter

Wheel base

Handlebars width

Scooter length .

Max.height

Min. height of floorboard.

Min. turning circle

Weight (with fuel) .

46.4'

25.7"

68.3"

38.7"

59'

1921bs.

through the cylindric arm of the crankcase

half, clutch side, provided with a spindle and

two bushes (see Fig.4).

Its vibrations are damped by the rear sus-

pension with variable rate coil spring and

hydraulic damper (see also page 13).

The rear wheel is secured to the end of

mainshaft.

FiJ:. 4. Engine installation and suspensions.

I. Steering column and front suspension. 2. Engine.

case half, clutch side, with swinging arm. 4. Rear

sprinc with hydraulic damper.

3. Crank-

suspension

Fig. S. Section of engine.

I. Piston. 2. Crankshaft. 3. Clutch. 4. Mainshaf«.

8. Crankcasehalf,clutch side, with swineinearm. 5. Gear shifter. 6. Flywheel maeneto. 7. Kickstarter.

Ignition by a high tension coil in the fly-

wheel magneto (see Fig. 6).

Sparkplug: either AC 45 F, KLG F 70,

Lodge HN, or Champion L 86.

Ignition timing with spark advance of

28 :1: 10.

Lubrication by oil in the fuel mixture for

piston, cylinder, gudgeon pin, con. rod, crank-

shaft, main bearings.

Both clutch and gear box operate in oil bath.

Feeding. Fuel feed to the carburettor is

provided for by gravity (see Fig. 7) with

petroil mixture.

Carburettor with float-chamber.

with total capacity of 1.7 Imp.

emergency reserve.

Three-waytap ("on" - "off" - "reserve").

Fuel tank

gals. and

1;\"6

Fig. 6. Ignition diagram.

I. Ignition coil in flywheel magneto. 2. Rotor cam. 3. Breaker.

4. Condenser. S. Sparkplug. 6. Engine cut..out on switch.

-9

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