PIAGGIO Vespa 150 1962 User manual

STABILIMENTO DI PONTEDERA UFFICIO TECNICO SERIE
Dis. 88356 M
2 a EDIZIONE, 600016102
Printed in Italy
Fig. 1 -Vespa 150
2

NOTICE
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 authorized service stations.
Demand original Piaggio spare parts exclusively. All PIAGGIO spares are made of the same
material, 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 agood quality gasoline and oil of make, grade and in the amount
prescribed in this booklet, page 21.
INDEX
Introductory note
Technical data
Identification data
Engine
Controls
Frame
Electric wiring
Tool kit
Accessories
Operation
Maintenance
Lubrication chart
Fault finding
4
5
6
7
12
13
16
19
19
21
26
32
35
3

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, the PIAGGIO Firm
reserves 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.
INTRODUCTORY NOTE
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 to your satisfaction.For its characteristics
(comfort, low fuel consumption, noiseless running, neatness etc.) the Vespa can have alarge
field of use:for work purpose as well as tourist trips, both along large highways and narrow
farm roads.
Long and hard rides will not worry you and, on driving the Vespa, you will soon realize its
excellent performance.
This booklet, in which the simple instructions for operation and maintenance can be found,
will enable you to better know your Vespa and use it in the most suitable way.
NOTE:This manual was copied from an original 1962 owner's manual.It was carefully
restored by Scooterstation.This manual may be freely copied and passed on to others
for sharing, as long as Scooterstation remains mentioned as the provider of this
manual.Scooterstation is not liable for any damage incurred through the use of this
manual be it physical or mechanical.
This manual was created using the free office software OpenOffice.This software is
obtainable for free at www.openoffice.org
(c)2004 Scooterstation (www.scooterstation.com)
4

TECHNICAL DATA
Weight (w/out fuel) 87 Kg (194 Lbs)
Carrying capacity 2 persons and 10 Kg (22 Lbs) of luggage.
Maximum length 1745 mm (68.7") Handlebar width 710 mm (27.9")
Wheel base 1180 mm (46.4") Maximum height 1020 mm (40.1 ")
Ground clearance 130 mm (5.1 ") Min. turning circle 1500 mm (59")
Engine single cylinder, air cooled 2-stroke
Bore 57 mm (2.24") Stroke 57 mm (2.24")
Cubic capacity 145.5 cc (8.88 cu in) Compression ration 6.5: 1
Max BHP 5.5 @ 5000 rpm Lubrication 2%
Transmission 4 speed, constant mesh
Primary drive 22/67
1st gear 13.35: 1 2nd gear 9.32: 1
3rd gear 6.64: 1 4th gear 4.73: 1
Clutch wet, multiplate
Carburetor Dell'Orto SI 20/17C
Main jet 100 Slow running jet 42
Diffuser BE/1 Main air bleed 185
Throttle valve No 7.0
Ignition contact breaker & coil
Ignition timing 28 deg. BTDC Breaker gap 0.3 -0.5 mm
Voltage 6 volt Max stator output 6v -50w
Wheels 8“ Wheel hubs cast w/cooling fins
Tire 3.00 x 8
Max speed (CUNA) 85 Km/h (53 MPH)
Fuel consumption (CUNA Standards) 2.2 l per 100 Km (107 MPG)
Total fuel capacity 7.7 l (2.03 gals)
Emergency fuel reserve 1.4 I (0.37 gals)
Range 360 Km (225 miles)
5

6
Figs.2&3–Identification data
IDENTIFICATION DATA
Serial numbers with prefix VBB are stamped on both frame and engine in the positions
indicated on Figs. 2 and 3respectively. Such numbers and prefixes identify the Vespa as
prescribed by law and are repeated on the test card and other documents of the Vespa.They
must be quoted when ordering spares.
-Stamping on frame
-Stamping on engine

ENGINE
Single horizontal cylinder, two-stroke, with deflector piston and rotary valve, i.e., the fuel
mixture flow to the cylinder is controlled by the rotation of acrankweb (see Fig. 4).
The engine works on a 2% gasoline-oil mixture.Lubrication of piston, cylinder, wrist pin,
connecting rod, crankshaft, main bearings is attended to by the oil in the fuel mixture.
The engine is pivoted to the chassis of scooter through the cylindrical arm of the crankcase
half, clutch side, provided with aspindle and two bushes (see Fig. 4). Its vibrations are
damped by the rear suspension with variable rate coil spring and hydraulic damper (see also
page 13). The rear wheel is secured to the end of the mainshaft.
7
Fig. 4 -Section of engine
1. Air cleaner and carburetor 2. Piston 3. Crank shaft 4. Clutch 5. Main shaft with gear pinions
6. Gear shifter 7. Flywheel magneto 8. Kick-starter 9. Crankcase arm, pivoted to the frame.

Ignition by an external H. T. coil with primary winding fed by another coil inside the flywheel
magneto (see Fig. 5). Use one of the following sparkplugs:
-AC 43F -Marelli CW 230 A-T or CW 225 N-T
-Champion L86 -Bosch W225T1
-KLG F70 or F75
Fig. 5 -Ignition diagram
1. Ignition coil in flywheel magneto 2. External H. T. coil 3. Rotor cam
4. Breaker 5. Condenser 6. Sparkplug 7. Engine cut-out on switch.
8

Fuel supply by gravity with a2%gasoline-oil mixture.The flow is controlled by athree way
fuel cock.The carburetor is embodied in the air cleaner case, has aplate-shaped slide valve
and immersed jets.
9
Fig. 6 -Feeding circuit
1. Fuel cock lever w/sediment trap 2. Float 3. Air cleaner/carburetor 4. Air vent for starter device
5. Set screw for throttle slide 6. Throttle slide 7. Air vent for main jet 8. Hole on mixer top
9. Mixer 10. Main jet 11. Idling jet 12. Air vent for idling jet 13. Inlet hole for oil (for laying up)
14. Idling adjuster 15. Valve for starter device 16. Intake port 17. Transfer ports 18. Exhaust
A -Reserve
B -Open
C -Closed

Cooling effected at all engine speeds by acentrifugal fan (see Fig. 7).
The muffler is of the expansion and absorption combined type with very high silencing
efficiency.
Air cleaner mounted inside the body. Air goes to the carburetor through alarge flexible inlet
tube, asilencing chamber and porous filter, which ensures avery quiet air intake.
We recommend not to alter the muffler or the air cleaner but to keep them in perfect
efficiency, to ensure that the noise level does not exceed the limits prescribed by law.
10
Fig. 7 -Cooling