Models

Lambretta I 50

  • I 50

Lambretta I 50.

Technical Specification

Model I 50
Amount Produced 70078
Production Dates October 1964 – January 1968
Frame Prefix J50 (20/1)
Engine Prefix j50
Frame Starting Number 400001
Engine Starting Number 400001
Homologation 3687 OM
Engine 49.8cc, two stroke, 38x44mm
Power and Rate 1.47hp at 4500rpm
Compression Ratio 1:7.75
Head and Cylinder Aluminium and cast iron
Engine Cooling Forced Air
Ignition Ducati magneto
Spark Advance 20' – 22' 1.6 – 2 mm before top dead center
Point Setting .35-.45 mm
Carburetor dell'orto SH 18/12
Choke 12mm
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 10/69 1: 6,90
2nd 16/64 1: 4,00
3rd 22/56 1: 2,55 – 39 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 2.75 x 9 pirelli or ceat
Tire Presure Front 1.5 ATM, rear 2.25 ATM
Brakes Drum
Dry Weight 78kg
Km Per Gallon 1.58lts per 100km
Fuel Capacity 6.2lt
Max Speed 40kmh
Initial Price 109,000 Italian Lira
Electrical System 6 volt
Sparkplug Bosch 225 long thread
wheel Base 1190mm
Maximum Length 1660mm
Ground Clearance
Maximum Seat Hight
Minimum Turning Radius
Maximum Width 630mm
Maximum Hight 1000mm
Colour Aquamarine Blue 8030 (Version 3)
Apple Green 8039 (Version 3)
Ruby Red 8047 (Versions 1 & 2)
New White 8059 (All versions)
Purple 8069 (Version 3)
Two Tone Colour Option Light Olive Green 8079 (Versions 1 & 2)
Dark Olive Green 8078 (Versions 1 & 2)