Lambretta I 125 3m

Lambretta I 125 3m.

Technical Specification

Model	I 125 3m
Amount Produced	21651
Production Dates	September 1964 – September 1966
Frame Prefix	j125
Engine Prefix	j125
Frame Starting Number	600001
Engine Starting Number	600001
Homologation	3689 OM
Engine	122.5cc, two stroke, 57x58mm
Power and Rate	5.8hp at 5300rpm
Compression Ratio	1:7.45
Head and Cylinder	Aluminium and cast iron
Engine Cooling	Forced Air
Ignition	Ducati magneto
Spark Advance	23' – 25' 2.4 – 2.8 mm before top dead center
Point Setting	.35-.45 mm
Carburetor	dell'orto SHB 18/16
Choke	16mm
Slide	N/A
Needle	N/A
Atomiser	N/A
Main Jet	62
Pilot Jet	40
Starter	50
Float	3.5 Grams
Starter	Pedal
Crankcase oil	Agip Rotra SAE 90 360cc
Transmission Oil
Oil / Gas Mix	2%
Clutch	Multiple discs in oil bath
Gears	3 speed with hand shifter
1st	11/48 1: 4,36
2nd	16/42 1: 2,63
3rd	21/37 1: 1,76 – 86,7 kmh
Secondary Transmission	Simplex chain
Secondary Transmission
Frame	Monocoque frame of 1190mm
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 1.3 ATM, rear 2 ATM
Brakes	Drum
Dry Weight	9kg
Km Per Gallon	2lts per 100km
Fuel Capacity	6.2lt
Max Speed	86.7kmh
Initial Price	125.000 Italian Lira
Electrical System	6 volt
Sparkplug	Bosch 240 long thread
wheel Base	1190mm
Maximum Length	1690mm
Ground Clearance
Maximum Seat Hight
Minimum Turning Radius
Maximum Width	630mm
Maximum Hight	1030mm
Colour	Metllic Grey 8060
Metallic Blue 8062