The Vespa Primavera ET3 is a specific, limited-edition variant (144,000 units were produced overall) of the Vespa “Primavera”. The initials ET3 indicate that the vehicle had electronic ignition and that the engine's single cylinder had a third transfer port. The smaller-sized body, like that of the Vespa 50cc, gave the vehicle more manoeuvrability, a feature that made this Vespa the favourite of 1970s youngsters. The seat the colour of blue jeans of the first few units produced reveals the link between the young and the Primavera ET3. The 125cc ET3's engine resembled the Primavera's from the outside but was much faster and more powerful (7 bhp), so that for a long time it was the speediest Vespa of its category.
The Vespa 125 Primavera ET3 was founded in 1976 alongside a model already in production, the Vespa 125 Primavera . From this the ET3 differs from a technical point of view thanks to a new electronic ignition control unit managed by Ducati , not more tacks platinate. This, in addition to ensuring the prompt power in all conditions, allows the engine to "turn" the other regimes with greater regularity to the benefit of performance.
Another new feature is the presence of three transfer ports in the cylinder instead of two (ET3 3 = Electronics Racking) that give the Vespa ET3 more acceleration and more speed rush. A new muffler "torpedo" similar to the one mounted by Piaggio on 90SS , a more comfortable seat, some painted details Charcoal (coprimolleggio front flywheel cover and front axle) and the adhesive side with the word "Electronic" complete the birth of this model, one of the most popular thanks to its agility, power and aesthetic success. Will remain in production until 1982 .

Vespa 125 Primavera ET3 - Series description

VMB1T  1976-1983

Vespa 125 Primavera ET3 is a sports version. ET3 stands for "Electronic 3 Ports" and thanks to the most powerful engine in the new exhaust with higher engine performance. Other changes from the previous version is the lighting, electronics etc buttons. ET3 looks sporty in appearance is also a view that is also enriched by a new sticker on the front fender and side panels that take the style of the series Rally 200. Other new details is the main contact on the handlebar, plastic jockeys such as jeans, black exhaust elongated like a kind of SS 90. resembles Primavera ET3 125cc engine from the outside but it is much faster and more powerful (7 bhp), so for a long time it was the fastest Vespa.

Vespa 125 Primavera ET3 - Technical specification

Frame type Rim Gears speed km/h Specification

VMB1T  1976-1983


smallframe 10" 4 gears 90 km/h

engine:single cylinder, air cooled 2-stroke induction: disc valve bore:55 mm stroke:51 mm cubic capacity:121.16 cc compression ratio:9.25: 1 bhp at rpm: 7 @ 6000 transmission:4 speed constant mesh 1st gear:14.74: 1 2nd gear:9.80: 1 3rd gear:7.06: 1 4th gear:5.31: 1 clutch:wet - multiplate lubrication:2% (pre-mix) carburetor:Dell'Orto SHB 19/19 main jet:76 slow running jet:45 throttle valve:No 2 starter jet:60 ignition:electronic ignition timing: 20 deg. BTDC breaker gap: 0.3 - 0.5 mm voltage: 6 volt wheels:10" wheel hubs:cast w/cooling fins tires: 3.00 x 10 max speed: 56 mph ------------------- Production 144,211 copies Colors blue blue Rossoarancio Frame numbers VMB1T 1101-145312 Engine Cylinders / time 2-stroke single cylinder Displacement 121.1 cc Bore and stroke 55 X 51 mm Compression ratio 9,5:1 Power / RPM 6 hp / 5500 rpm Torque / revs nd Cooling Forced air Distribution rotating Supply Carburetor orchard 19 \ 19 Mixture 2% Ignition flywheel Start crank Clutch multiple discs in oil bath Change 4-speed knob Cycling Frame Monocoque Front suspension Pull rod wheel with coil spring and shock absorber Rear Suspension Coil spring and shock absorber Final Drive Direct Wheels Cantilever interchangeable with disk decomposable Front brake 125 mm drum Rear brake Drum 150 mm Tires 3.00 X 10 front and rear Dimensions and Weight Length 1665 mm Width 670 mm Seat height 750 mm Wheelbase 1180 mm Tank 5.6 liters Weight 78 Kg Performance claims Speed ​​'maximum 90km / h acceleration 400 meters from standstill in 22.9 sec consumption 2 l \ 100 km

Vespa 125 Primavera ET3 color (colour)

* Blue-Grey: MaxMeyer 1.298.7228
* Navy Blue: MaxMeyer 1.298.7275
* Red: MaxMeyer 1.298.5632
* Silver: MaxMeyer 2.268.0108
* Flywheel, Hub cap, Front Suspension: Opaque Bla
* (Fork, Hub, Flywheel, etc.) Aluminum: MaxMeyer 1.268.0983
* Inside Gray Primer: MaxMeyer 8012M

Vespa 125 Primavera ET3 - VIN numbers; VIN serial numbers; Chassis number

  VIN prefix Year VIN Chassis Number Vespas made  
VMB1T 1976 1101 - 8925 7 824
VMB1T 1977 8926 - 26810 17 884
VMB1T 1978 26811 - 51703 24 892
VMB1T 1979 51704 - 76045 24 341
VMB1T 1980 76046 - 100260 24 214
VMB1T 1981 100261 - 129919 29 658
VMB1T 1982 129920 - 144679 14 759
VMB1T 1983 144680 - 145312 632

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