S p e c s:

1959 - 1961
Made under license in England
engine: single cylinder, air cooled 2-stroke
induction: piston ported
bore: 54 mm
stroke: 54 mm
cubic capacity: 123.67 cc
compression ratio: 6.3: 1
bhp at rpm: 5.4 @ 5,000
lubrication: 5% oil
transmission: 3 speed constant mesh
1st gear: 12.2: 1
2nd gear: 7.6: 1
3rd gear: 4.85: 1
clutch: wet - 3 cork plates
carburetor: Dell 'Orto UA/16S1 (some fitted with Amal type - see below)
main jet: 72
needle jet: 2.60
needle position: 2
throttle valve: No.50
pilot jet: 38
carburetor: Amal 503/1 (some fitted with Dell 'Orto type - see above)
main jet: 70
needle jet: 0.086
needle position: 2 or 3
throttle valve: No.3
pilot jet: 20
ignition: contact breaker & coil
ignition timing: 28 degrees BTDC
breaker gap: 0.3 - 0.5 mm
voltage: 6 volt AC
battery: 6V 9ah
wheels: 8"
tires: 3.50 x 8"
 
This bike is basically an Italian Vespa VNA1T which was manufactured and assembled in the UK. Parts are identical to the VNA1T except for specific differences to the rear light and other small changes such as some being fitted with British Amal carbs and British stator plates