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S p e c s: 788.94330 (VA12T)
1963
engine: single
cylinder, air cooled 2-stroke
induction: disc valve
bore: 52.5
mm
stroke: 57
mm
cubic capacity: 123.4 cc
compression ration: 7.2: 1
bhp at rpm: 4.6 @ 5000
lubrication:2%
transmission: 3 speed constant mesh
1st gear: 12.20: 1
2nd gear: 7.60: 1
3rd gear: 4.85: 1
clutch: wet
- multiplate
carburetor: Dell'Orto SI 20/15B
main jet: 82
slow running jet: 42
diffuser: E2
main air bleed: 150
throttle valve: No
ignition: contact breaker & coil
ignition timing: 26 deg. BTDC
breaker gap: 0.3 - 0.5 mm
voltage:
6 volt
Similar to Vespa VNB1T - but no front damper
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