PIAGGIO Vespa 150 User Manual

STABILIMENTO DI PONTEDERA

UFFICIO TECNICO SERIE

Dis. 88356 M

2 a EDIZIONE, 600016102

Printed in Italy

Fig. 1 – Vespa 150

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 a good quality gasoline and oil of make, grade and in the amount prescribed in this booklet, page

21.

INDEX OF MAIN DIRECTIONS

Introduction 5 Technical data 6 Identification data 6 Description engine 8

controls 12

frame 13 Electric wiring 17 Accessories 19 Operation 21 Maintenance 28 Lubrication chart 32 Fault finding 35

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 a large 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 owners manual. It was carefully restored by Scooterstation. This manual may be freely copied and passed on to others for sharing. It may be altered and changed to the demands of each individual user, 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 free Office software is obtainable for free at www.openoffice.org

TECHNICAL DATA

Fig. 2 & 3: - Stamping on frame (1) – Stamping on engine (2)

Fuel consumption (CUNA Standards)

2.2 liters to 100 Km (107 miles per USA gal ; 128 miles per imp. gal).

Max speed (CUNA) 85 Km "h (53 m.p.h. )

Carrying capacity

2 persons and 10 Kg. (22 Ibs) of luggage.

Range 360 Km (225 miles) Wheel base 1180 mm (46.4" ) Handlebar width 710 mm (27.9") Max length 1745 mm (68.7") Max height 1020 mm (40.1 " ) Ground clearance 130 mm ( 5.1 " ) Min. turning circle 1500 mm ( 59") Weight (without fuel) 87 Kg ( 194 Ibs )

IDENTIFICATION DATA

Serial numbers with prefix VBB are stamped on both frame and engine in the positions indicated on Figs. 2 and 3 respectively.

Fig. 4 – Section of engine

1. Air cleaner and carburettor - 2. Piston - 3. Crank shaft - 4. Clutch - 5. Mainshaft with gear pinions - 6. Gear shifter - 7. Flywheel magneto - 8. Kick-starter -9. Crankcase arm (clutch side), pivoted to the frame.

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.

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.

ENGINE

Single horizontal cylinder, two-stroke, with deflector piston and rotary valve, i. e.: fuel mixture flow to the cylinder is controlled by the rotation of a crankweb (see Fig. 4).

The engine works on a 2% gasoline-oil mixture.

Bore 57 mm (2.24") Stroke 57 mm (2.24") Displacement 145.45 cc ( 8.88 cu.in ) Compression ratio 6.8 to 1 .

The engine is pivoted to the chassis of scooter through the cylindrical arm of the crankcase half, clutch side, provided with a spindle 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.

Ignition by an external H. T. coil with primary winding fed by another coil inside the flywheel magneto (see Fig. 5).

Sparkplug: Marelli CW 230 A - T or CW 225 N - T, AC 43 F, Champion L. 86, Bosch W 225 T 1. - KLG F 70 or F 75.

Ignition timing with spark advance of 28° ± 10.

Lubrication of piston, cylinder, wrist pin, connecting rod, crankshaft, main bearings is

attended to by the oil in the fuel mixture.

Both clutch and gear box operate in oil bath.

Fuel supply by gravity with gasoline-oil mixture. The carburettor is embodied in the air cleaner case, has a plate-shaped slide valve and immersed jets.

Fuel tank with total capacity of 7.7 liters (2.03 USA gals; 1.7 imp. gals) and emergency reserve of about 1.4 I (0.37 USA gals; 0.3 imp. gals).

Three way tap («off» - «on» - «reserve»).

Transmission. The engine (see Fig. 4) directly drives the rear wheel through clutch, cush drive and gear box.

Engine to wheel transmission ratios:

First : 13.35 to 1 Second : 9.32 to 1 Third : 6.64 to 1 Fourth : 4.73 to 1

Fig. 6 - Feeding circuit

1. Fuel cock lever with sediment trap: A) Reserve, B) Open, C) Closed - 2. Float - 3. Air cleaner with carburettor - 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. Plug for inlet hole for oil; for laying up. - 14. Idling adjuster - 15. Valve for starter device - 16. Intake port - 17. Transfer ports - 18. Exhaust duct.

Clutch. Multiplate, with linings bonded to the driving discs (see Fig. 4). Control by lever,

on left hand side of handlebars (see Fig. 8), and adjustable cable.

Gear box. 4-speed drive with mesh gears in oil bath (see Fig. 15). Its adjustable twistgrip control is coupled

with that of the clutch, on left hand side of handlebars (see Fig. 8).

Starting. By means of kick-starter, night hand side of scooter. The multiple gear and consequently the engine is set in motion through a ratchet sector and a gear by operating the kick-starter.

Cooling effected at all engine speeds by a centrifugal fan (see Fig. 7).

Muffler. Expansion and absorption combined type with very high silencing efficiency.

Air cleaner mounted inside the body. Air goes to the carburettor through a large flexible

inlet tube, a silencing chamber and porous filter, which ensures a very quiet air intake.

We recommend not to alter the muffler or the air cleaner but to keep them in perfect efficiency, in order that the noise level does not exceed the limits (prescribed by law.)

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