Lambretta Lui 75 Sl (Cometa)

Lambretta Lui 75 Sl (Cometa).

Technical Specification

Model	Lui 75 SL (Cometa)
Amount Produced	2067
Production Dates	August 1968 – December 1970
Frame Prefix	20/8
Engine Prefix	75S
Frame Starting Number	650001
Engine Starting Number	650001
Homologation	6126 OM
Engine	74.4cc, two stroke, 46.4x44mm
Power and Rate	5hp at 4300rpm
Compression Ratio	1:9.3
Head and Cylinder	Aluminium and cast iron
Engine Cooling	Forced Air
Ignition	Ducati magneto
Spark Advance	20' – 22' 1.65 – 2.01 mm before top dead center
Point Setting	.35-.45 mm
Carburetor	dell'orto SH 1/20
Choke	20mm
Slide	5914/1
Needle	N/A
Atomiser	5899/6
Main Jet	68
Pilot Jet	45
Starter	N/A
Float	5 Grams
Starter	Pedal
Crankcase oil	Agip Rotra SAE 90 620cc
Transmission Oil
Oil / Gas Mix	2%
Clutch	Multiple discs in oil bath
Gears	4 speed with hand shifter
1st	9/49 1: 5,44
2nd	13/46 1: 3,54
3rd	16/42 1: 2,62
4th	20/39 1: 1,95 – 82,5 kmh
Secondary Transmission	Simplex chain
Secondary Transmission
Frame	Steel tubing and stamped metal of strong 1202mm
Front Suspension	Oscilating conecting rods
Rear Suspension	Torsion bar attached to motor with a single shock
Wheels	Dismountable wheels
Tires	3.00 x 10 pirelli or ceat
Tire Presure	Front 1.5 ATM, rear 1.75 ATM
Brakes	Drum
Dry Weight	76.5kg
Km Per Gallon	2lts per 100km
Fuel Capacity	5lt + 1lt oil
Max Speed	82.5kmh
Initial Price	125,000 Italian Lira
Electrical System	6 volt
Sparkplug	Bosch 225 long thread
wheel Base	1202mm
Maximum Length	1690mm
Ground Clearance
Maximum Seat Hight
Minimum Turning Radius
Maximum Width	660mm
Maximum Hight	1050mm
Colour	Metallic Grey 8060
	Ochre 8080