VESPA PRIMAVERA 150 Operation And Maintenance

,

OPERATlON AND MAINTENANCE

t

OPERATION AND MAINTENANCE

2nd EDITION

Drw N. 2~2~OM

PONTEDERA WORKS'

The descrlpllons ond lIIostrollons In this booklet ore not 10 be loken os binding on the Monoloctorer. The essenllol leotores 01 Ihe model described

and Illustrated herein remaining unaltered, the rlAGGIO firm reserves therefore the right 10 corry out at any moment, without being obliged 10 bring

this booklet up-tD-dote In due course, modUicotlonsthot moy occur concerningmachineunits and ports. or delivery 0'accessories,thotthe thmdeems

to be convenient on Improvement purposes or for what may con:ern manufacturingor commercial requirements.

NOTICE

In order, to keep their VESPA in perfect running conditions and not to

invalidate the guarantee offered by the contract, customers should always have

their machines repaired by sale agents or authorized service stations. Demand

original Piagg~o spare parts exclusively.

Special care should be taken in regard to fuel mixture which should be

of a good quality gasoline and oil of make. grade and in the amount prescribed

in this booklet, page 19.

INDEX OF MAIN DIRECTIONS

Introduction

Controls scheme

Identification data

Main specifIcation

Engine: description

Frame: d9scription

pag. 3

5

6

8

10

Electric wiring

Accessories

Operation

Maintenance

Lubrication chart

Fault finding .

Pag. 14

17

19

}} 26

30

32

INTRODUCTION

The "PIAGGIO Co" welcoming you in the family of the Vespa owners, wishes

to thank you for your preference, trusting that this scooter will be of your full

satisfaction.

For its own characteristics (comfort, low fuel consumption, noiseless running,

neatness etc.) the Vespa can have a large field of use; for work reasons as well

as tourist trips, both along large highways and narrow farm roads.

Long and hard rides will not worry you and, driving the Vespa, you will soon

realize its excellent performances.

This booklet, in which are described the simple instructions for the use and

maintenance, will enable you to know better your own Vespa and use it in

the most suitable way.

- 3

Fig 1 . VESPA150

Fig. f - VESPA controls

1. Switch, horn button, earth contact - 2. Gear shift clutch control - .3. Front brake lever - 4. Horn - 5. Rear brake pedal

6. Soutter of carburotlor housing. 7. Kickstarter - 8. Fuel cock - 9. Choke - 10. Filling cap. - 11. Throttl. control grip

-5

-

IDENTIFICATION DATA

Fig. 3 - Stamping on engine

Serial numbers with prefixes are stam-

ped on both engine and frame, in the

positions indicated on Figs. 3 and 4

respectively.

Such numbers and prefixes indentify

the Vespa as prescribed by law and

are repeated on the test card and

other documents of the Vespa.

Fig. 4 - Stamping on frame

6-

..

Fig. 5 . Scheme of Ihe engine

~

1. Spork plug. 2. Plug lead. 3. Cylinder head. 4. 1

Piston. 5. Cylinder - 6. Connecting rod - 7. Flywheel

8. Generating Coil - 9. low tension coil . 10.

./I .

,,~

8

~';~'LJVJ

PERFORMANCE

Fuel consumption at economic speed:

2.2liters to100Kms (107

miles per USA gal.; 120

miles per imp. gal.).

Max speed: 80 Km h (50 m. p. h.)

Garrying capacity: 2 persons and 10Kg.

of luggage.

Range: 370 Km. (230mls)

MAIN SPECIFICATION

Wheel base. . . 1165mm. (45.8 in)

Max width on han-

dlebars . 770 .. (30.3.. )

Max length. . . 1700 " (66.9.. )

Max height. . . 10qO .. (40.9.. )

Minimum height of floorboard

220 .. (8.7" )

Minimum turning circle 1500 mm. (59" )

Weight (without fuel) 92 Kg. (200Ibs)

ENGINE

Cycle: Single cylinder, two - stroke,

with reverse flow scavenge and de-

flector piston.

Bore.

Stroke . .

Displacement

. 57 mm.' (2.2qin.)

. 57 mm. (2.2qin.)

.145.6 cc. (8.88cu.in.)

Compression ratio: 6.3 to 1.

Ignition: by an external coil with pri-

mary winding fed by another coil in-

side the flywheel magneto. Sparkplug:

either Marelli CW 225 D, or AC q5 L.

Ignition timing with spark advance of

28 + 10.

8-

Lubrication: by mixture for piston-

cylinder and gudgeon pin

-con. rod-

crankshaft-main bearings units.

Both clutch and gear box operate in

oil bath.

Feeding: Fuel feed to the carburettor

is provided for by gravity directly from

the tank with gasoline-oil mixture.

Carburettor with float -chamber. Fuel

tank with total capacity 8.2 liters (2.17

USA gals 1.8 imp. gals) and emergency

reserve.

Three way cock

(" open" - ., closed" -

reserve ,,) with sediment bowl.

Cooling: by a centrifugal fan.

Transmission: The engine is installed

on the swinging bracket of the rea'r su-

spension and drives directly the rear

wheel through clutch, cush drive and

gear box.

Clutch: Wet type; steel plates with

cork inserts.

Control by lever, on left hand side of

handlebars (see fig. 2), and adjustable

cable.

Gear box: 3-speed drive with mesh

gears in oil bath.

Its adjustable twistgrip control is cou-

pled with that of the clutch, on left

hand side of handlebars.

Engine to wheel transmission ratios:

First:

Second:

Third:

12. 2 to 1

7.46 to 1

4.73 to 1

Starting: By means of kickstarter, right

hand side of scooter.

- 9

Silencer: Expansion and absorption

combined type.

Air cleaner: Mounted inside the body.

Silencing chamber with tangential in-

take tube, and with filter moistened

by fuel mixture.

Notice; We recommend not to alter

the silencer and air cleaner but to keep

them in perfect efficiency; in order to

avoid an unnecessary and disadvan-

tageous noise and not to break the

law regulations on the subject.

FRAME

Stressed skin body: of pressed steel

sheet, with streamlined, monocoque

type structure.

Handlebars: clamped in a split, sup-

port with rubber dampers in -between

and a friction device for locking the

throttle control grip in the required

position.

Steering column, suspensions and

wheels: Handlebars are clamped on

top of steering column.

The front wheel- swinging hub is pivo-

ted at the bottom of the column. .

Front suspension with

coil spring and double

lie damper.

variable rate

action hydrau-

10 -

Rear suspension: swinging bracket for

engine and rear wheel. variable rate

coil spring and coaxial double action

hydraulic damper.

The wheels are interchangeable with

rims of pressed steel sheet 0 8".

Tyres of dia. 3.50 - 8".

"

Saddle: It is of the nose-pivoted sprung

type and is secured on top of the

body; an other spring is fitted in the

front of the saddle.

Brakes: Expanding type with cable

control. Front: lever on right hand

side of handlebars. Rear: control

pedal on right hand side of' floor-

board.

Drums in light alloy with cooling

fins.

Central stand: A two-leg stand, easy to

operate, is arranged under the floor-

board.

Two strong return springs hold it in

contact with the floorboard and keep

it from vibrating while the scooter is

being ridden.

Steering lock: A suitable security lock

is arranged on the frame, near the

handlebars. Turning the key anticlock-

wise and the handlebars to the left,

the lock engages the lugs welded on

the .steering column, so that the machi-

ne can only turn around. Turn the key

clockwise and the handlebars back to

normal position for releasing the stee-

ring system (see fig. 6).

-11

""'-&.;..'-

~ig. 6 - Security lock

1. :'\ormal posilion . 2. Closed

We recommend not to lubricate the

steering lock, even if it does not

function properly.

Do not attempt to ride the machine

unless the key is in, and remains in the

lock and the handlebars move freely.

Speedometer: The speedometer is

housed in the handlebars -head lamp

support. (see fig. 6) and adds to the

performance and appearance of the

scooter.

It is driven by the front wheel. the

flexible shaft being completely en-

closed in the steering column.

The speedometer head is lit during

rides at night by a bulb installed in

suitable position in the head lamp.

12 -

LIGHTING AND HORN

Either alternating or direct current for

both horn and lighting system is sup-

plied as follows (see Fig. 7):

- Traffic and country beam, speedo-

meter light, tail lamp and horn are

directly fed with a. c. by the six-po-

le flywheel magneto (nominal vol-

tage: 6 V).

~"I

«

-- Parking lights, front and rear, are

fed with d. c. by a 6V - 4Ah battery

which is re-charged by the flywheel

magneto through a metallic rectifier.

The head lamp,

0 150, installed on

the handlebars is provided with a

25/25 \Iv double filament bulb (traffic

and country beam), and with a 3 W

bulb (town and parking light).

The tail lamp, with red catadioptre

has a 5 W bulb.

The light and dimmer switch unit

with two levers is installed on the

right hand side of the handlebars;

one of the levers controls has three

light positions (town light and tail

lamp-oH-head and tail lamp), the other

- 13

Fig. 7 - Electric wiring diagram

1. Switch positions - 2. Horn !>utton - 3. Main beam - 4. Dipping light - 5. Head lamp, speedometer, tail lamp

- 6. lights off

- 7. Town light, tail lamp and speedometer - 8. Earth button - 9. To clamp cC'-gr~en - 10.To clamp cA. yellow - 11. To the

battery (positive polegreenl

- 12. Rectifier- 13.Speedometerlamp - 14. Inside view of head lamp.Doublefila,llent bulb, 6V,

25-25W, town light, 6V-3W - 15.Head lamp earthing cable - 16.Blue- 17.Marron -18. Violet- 19.Pink- 20.White - 21.Num-

bers corresponding with those inside the switch - 22.Yellow. 23.Red - 24. Black- 25.Green -26.Horn,6V,12W - 27. Switch

(Inside view) - 28. Battery, 6V, 4 Ah - 29. Sparkplug .30. low tension socket and earthing tag. - 31. Tail light, 6V,5W

32. White - 33. Clamps - 34. Ignition coil - 35. To the sparkplug - 36. To the f.ywheel, magneto

one gives the two light

of the head lamp (traffic

try beam).

conditions

and coun-

The switch has

tons for cut -out

tively.

also two push but-

and horn respec-

SETTING THE HEAD LAMP

The correct orientation

beam can be obtained

follows.

of the main

vertically as

Check that both front and rear tyres

are inflated to .8 and 1.8 atm. (11.3

and 25.5 psi.) respectively.

Place the scooter on a level floor

in front of a white wall as seen on

Fig. 8.

Start the engine, hold the throttle

control twistgrip at about 1/3 and set

the switch on "country beam".

With two persons on the Vespa. slack-

en the screw "V" (see Fig. 8), then

move the head lamp as required, in

order that the beam axis coincides

with point "0" on the wall.

Tighten screw "V" firmly.

This operation can be carried out

also with driver only sitting on the

- 15

o saddle.

-'--

In such a case, of course, the beam

alignment should de altered whene-

ver the scooter is being ridden by

both driver and passenger.

I,

i

I

rn.5

Fig. 8 - Adjustment of head lamp

16 -

TOOL KIT

Spanners: 1 four-ended box spanner

(11 - lLl - 21 - 22 mmJ.

1 double open-ended spanner (11-

lLl mm.).

3 single open-ended spanners (17-8and

10 mm.)

Screwdriver: n. 1.

These tools are contained in a canvas

roll which is placed in the left wing

together with this booklet and the test

card.

A security lock is arranged on the

lid of the tool box

ACCESSORIES

..

On request the Vespa 150can be equip-

ped with following accessories:

Pillion seat: It is of the nose-pivoted

sprung type.

The pillion seat is secured to three

holes on the rear luggage carrier of

the scooter. The seat is small and at-

tractive looking, gives remarkable com-

fort to the passenger, thus completing

the efficiency of suspension (see fig. 9).

- 17

I.

I

Fig. 9 - Pillion seal, spare wheel and bracket

Spare wheel and support: The wheel

support can be secured to the scooter

frame by two holes on its central lon-

geron, with a suitable rubber packing

in-between.

It is very robust and simple and holds

the wheel in such a position where it

is easily accessible and does not deran-

ge the driver at all.

Owing to the simple and rational design

of Vespa scooter, no particular expe-

rience is required for its operation, nor

skilled personnel for its maintenance.

The tasks can be quite well earned out

by any customer, even unexperienced,

by carefully following some general

rules.

18 -

OPERATION

Running-in: Important rules to be

followed while running-in (2000 Kms.

or 1250 miles):

Do not exceed following speeds:

~

1st gear: 20 Km/h

2nd gear: 35 Km h

3rd gear: 55 Km/h

(10 mph)

(19 mph)

(31 mph)

Do not hold these max speeds for

long periods. neither use full throttle

opening up-hill specially when riding

with a passenger.

- Change oil in the gear box after

the first 1000 Kms (600 miles).

-- Check that nuts and bolts are not

slack after the first 1000 Kms (600

miles).

- 19

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VESPA PRIMAVERA 150 Operation And Maintenance

VESPA PRIMAVERA 150 Operation And Maintenance

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