S p e c s: LI 125 Special

1965 - 1969
Note: not imported to USA/UK
amount produced: 29,841
engine: single cylinder, air cooled 2-stroke
induction: piston ported
bore: 52 mm
stroke: 58 mm
cubic capacity: 123 cc
compression ratio: 8.0: 1
bhp at rpm: 7.1 @ 5,550
transmission: 4 speed constant mesh
primary drive: 46/15
1st gear: 15.33: 1
2nd gear: 10.71: 1
3rd gear: 7.97: 1
4th gear: 6.32: 1
lubrication: 2%
carburetor: Dell'Orto SH1/20
choke: 20mm
slide: 5914/1
atomizer: 5988/5
main jet: 98
starter jet: 50
pilot jet: 45
ignition: contact breaker & points
ignition timing: 21 degrees BTDC
breaker gap: 0.35-0.45 mm
voltage: 6 volt
wheels: 10"
wheel hubs: cast
tires: 3.50 x 10
max speed: 50 mph
total dry weight: 229 lbs
 
I just bought an old Li 125 Special to be picked up in February 2001. Click to link to the project page.
Note: This bike has basically the same engine as fitted to the GP125 including the gearbox ratios. This is a fun bike to tune as it can easily be changed to GP200 ratios because only the primary drive is different. Switching from a 15 tooth front sprocket to a 18 and a 46 tooth clutch housing to a 47 tooth will equal GP200 gearing. For more info on Lambretta gearing see the Lambretta Gearing Calculator.
Note: The body style is exactly the same as the Li150 Special and the TV175 Series 3 (although with no disk brake or fork dampers)