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Vespa (Piaggio) Vespa 125 (V1T)

Vespa (Piaggio) Vespa 125 (V1T)

Description


Vespa 125 (V1)

The V1T was the first model with 125 cc produced by the Piaggio factories. Compared to the V98 it was technically revised in essential points. In addition to the cylinder bore, which was enlarged from 50 mm to 56.5 mm, the mounting bolts of the shift segment were doubled (in Tecnica: "the mounting bolt of the shift paddle cover") in order to eliminate the malfunctions that had occurred on the V98. The carburettor is still a Dell'Orto TA 17, but now with a flap on the air filter as a choke, operated by a cable with a lever under the swing saddle. The steering tube is now led down to the front swing arm on the right side of the scooter instead of the one on the left in driving direction, which gets a completely new suspension system. Instead of the former leaf springs a coil spring is now installed parallel to the steering tube.

The shift linkage is now guided from the brake pedal to above the mounting screws of the engine swing arm inside the frame tunnel. Also the rear wheel now has a suspension consisting of a coil spring and a hydraulic damper.

The bonnet is mounted movable with two hinges at the top and is fixed to the frame with a spring lock at the bottom. The opening in the bonnet, which was still circular on the V98, is now open at the bottom on the V1T to allow the engine to swing. The opening in the frame through which the intake manifold is led from the carburettor to the cylinder is enlarged to give it more freedom of movement with the now sprung engine. The saddle is now also suspended at the front and a luggage hook is installed below the saddle tip.

Finally there is a simple side stand, so that one does not have to lean the Vespa on the footboard when parking. Light switch and tail light are still the same on the first models as on the V98, but then they are changed: the switch is fan-shaped with a black plastic base and a chrome cover; the tail light has no frame anymore.

The horn gets a new shape and a central adjusting screw on the outside. The front headlamp with Siem disc and chrome ring has a diameter of 95 mm and a decorative fin made of chrome-plated Zamak (die-cast zinc). The carburettor flap has a spring and small rubber buffers are fitted to the frame to dampen the vibrations of the flap. The tank is equipped with a fuel tap with reserve position, which is opened or closed with a hook-shaped (on the V98 still ring-shaped) control lever. The fuel filler cap is spring loaded on the first models and quick release, as it was not installed again until 1955 on the GS. The newly designed rubber grips now feature the Piaggio logo, while the aluminium plugs remain on the handlebar ends. In the leg shield emblem, the "Genova" lettering is slightly larger than on the V98.

In model year 1949, the cylinder and cylinder head are modified for better cooling. From now on the cooling fins of the cylinder are no longer perpendicular to the cylinder base, but parallel. This shape is still used today in all later models. The piston pin diameter is increased from 12 mm to 15 mm. The flange of the intake manifold is fixed with three instead of 2 studs. (Source: GSF)

Frame numbers by year of manufacture:
1949-1950: V1T-V15T 1-104096
Quantity V1: unknown
Quantity V1-V15: 104.096

Original paint (MaxMeyer)

Body:
Verde Chiaro Metallizato
PIA6006M
Verde Met. 6000M
Primer:
Rosso Opaco (Antiruggine)
PIA55 (10055M)
Rosso Opaco 10055M
Mounting parts:
Verde Chiaro Metallizato
PIA6006M
Verde Met. 6000M
 
Véhicule (généralités)
Modèle: Vespa 125 (V1T)
Année/s de production: 1948, 1949
N° de châssis: V1T
Véhicule dimensions
Longueur: 1655 mm
Largeur: 700 mm
Hauteur: 950 mm
Hauteur de la selle: 790 mm
Distance entre les axes de roues: 1130 mm
Capacité réservoir d'essence: 5 l
Réserve incl. (essence): 0.65 l
Poids (à vide): 77.5 kg
Véhicule roues
Roue avant: 3.50 - 8
Roue arrière: 3.50 - 8
Jante avant: 2.10 - 8
Jante arrière: 2.10 - 8
Véhicule freins
Type de frein avant: frein a tambour
Actionnement de frein avant: mécanique par câbles
Type de frein arrière: frein a tambour
Actionnement de frein arrière: mécanique par câbles
Véhicule moteur
Cylindrée: 124.8 cm³
Course: 49.8 mm
Alésage: 56.5 mm
Type de moteur: 2 temps
Nombre de cylindres: 1
Type de refroidissement: par aire
Puissance (kW): 2.94 kW
Puissance (ch): 4
Régime max. de rotation (puissance max.): 4500
Compression: 1:6.5
Carburation: carburateur
Carburateur: Dell'Orto TA 17B
Démarreur: kick
Embrayage: manuel
Fabricant du moteur: Piaggio
Vitesse max.: 70 km/h
Type de moteur: 2 temps
Norme d'emissions: sans
Véhicule moteur - allumage
Tension: 6 V
Bougie: (NGK) B7HS
Véhicule moteur - boîte de vitesses
Boîte de vitesses: manuelle
Nombre de vitesses: 3
Véhicule fluides
Carburant: Super (ROZ 95)
Mélange: 1:16
Huile de transmission: SAE30
Quantité huile de transmission: 0.25 l
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