S p e c s: 150 LDA Series III

1957 - 1958
amount produced: 4,076
engine: single cylinder, air cooled 2-stroke
induction: piston ported
bore: 57 mm
stroke: 58 mm
cubic capacity: 148 cc
bhp at rpm: 6 @ 4600
transmission: 3 speed (hand change)
1st gear: 12.9: 1
2nd gear: 7.5: 1
3rd gear: 4.75: 1
lubrication: unknown
carburetor: Dell'Orto MA 19 B4
choke: 19 mm
main jet: 72
throttle valve: N75
atomizer: 255B
starter jet: 50 (before engine no 8200)
starter jet: 75 (after engine no 8201)
needle: D3
needle position: no. 2
ignition: contact breaker & points
ignition timing: unknown
voltage: 12 volt
battery: 12v - ??ah (electric start)
wheels: 8"
wheel hubs: cast
tires: 4.00 x 8
max speed: 49 mph
total dry weight: 242 lbs
The LDA Series II and III were the only Italian Lambrettas made with an 12V electric start system. A small motor was attached to the right hand side of the motor swing arm. - see pic below.