150 GS VS4
Start of production: 1958 - 0035311 VS4T
Term production: 1958 - VS4T 0047350
Engine: derived from the Vespa Sport Six Day. Engine framework (bore and stroke 57 x 57); displacement 145.6 cc. Piston convex devoid of baffle powered gasoline-oil mixture 6%.
Candle: a long thread and thermal grade 240 due to the compression of 1 / 6.7 and the high number of revolutions.
Carburetor: from engine No. VS4M0045976 it is mounted a new one dellorto UB 23S3 always pan side directly above the cylinder, 103 main jet and jet 40 min.
Transmission: 4-speed transmission.
A ccenzione: by flywheel 6 pole. High voltage coil with external primary circuit powered by a special coil inside the flywheel.
Electrical system: mixed with battery 6 V - 12 Ah to feed horn and lights, charged with rectifier metallic implant insertion stop.
Fr ition: reinforced to adapt it to the performance, the discs are of larger diameter as well as the springs and all the other elements of the clutch assembly. Even the gear flexible coupling has greater dimensions.
Brakes: change to the jaws of the rear brakes that are mounted on two pins separated to avoid vibrations and annoying squeal.
Chassis: Unchanged from the version of the 56 '.
Pockets: bonnet with fixing hook again in mirror polished aluminum with curved shape for the quick release.
Front fender: wraparound with frieze in aluminum (crest) polished.
Handlebar: cast aluminum with large lighthouse (D 115 mm) and built-in internal transmission cables. The switch is a flat key and a knife as well as serving for the starting contact also serves to turn on the headlights and switch to the left for the sidelights and right to the side lights and low / high beam. The change of the lights is secured to a switch attached to the right of manubbrio and in which is incorporated the horn button which in this model function with direct current. A red light on the round speedometer indicates the lights on.
Odometer: climbed 120 km with a green background.
Tail: with position light (transparent red) and top light for the stop (transparent yellow orange).
Sella: rigid dark green with boundary passenger docked with carabiners.
Reservoir: at the level of the frame with a capacity 9.5 liters including reserves and closure cap with classic screw.
Faro: D 115 mm with chromed ring ring marked Siem.
Wheels: tire front and rear 3.50-10 rim (identical front and rear) secured by 10 bolts with nut 14 ".
Brake pedal: cast polished aluminum with black rubber stop and switch the type to leave gray mounted in front of the pedal itself.
Lever set in motion: long aluminum polished with non-slip rubber.
Chrome plating: carabiners and engagement rings handle saddle ring headlight, square nut ignition lock bag for tools.
Nickel matte: steering lock.
Galvanizing: tripod springs and brackets, spring suspension antriore, rims and wheel nuts, all hardware outside, washer block starting, mounting brackets battery.
Phosphating: rear shock, spring and bracket, engine bolts, cover rectifier.
Mirror polishing: Brake and clutch lever, handlebar muffs, lever set in motion, crest front fender.