Model F 125

  • F 125

The Lambretta model F 125.

Technical Specification

Model F 125
Amount Produced 32701
Production Dates March 1954 – April 1955
Frame Prefix 125F
Engine Prefix 125F
Frame Starting Number Followed on from 125E
Engine Starting Number Followed on from 125E
Homologation ?
Engine 123cc, two stroke, 52x58mm
Power and Rate 3.8hp at 4500rpm
Compression Ratio 1:6.3
Head and Cylinder Aluminium and cast iron
Engine Cooling Air
Ignition Magneto
Spark Advance 25' 24.5 mm on the circumference of the flywheel.
Point Setting .40-.50 mm
Carburetor dell'orto MU 14 C1
Choke 14mm
Slide 40
Needle F3
Atomiser 270-35
Main Jet 72
Pilot Jet N/A
Starter N/A
Float 5 grams
Starter Pedal
Crankcase oil Mobil Oil A 300 grams
Transmission Oil Mobil Lube C 140 100 grams
Oil / Gas Mix 5%
Clutch Multiple discs in oil bath
Gears 3 speed with hand shifter
1st 1: 13,4
2nd 1 : 8
3rd 1: 4,93 – 75 kmh
Primary Transmission Gear
Secondary Transmission Shaft
Frame Steel tubing of strong 1280mm sections
Front Suspension Oscilating conecting rods
Rear Suspension torsion bar attached to motor
Wheels Dismountable wheels
Tires 4.00 x 8 ceat
Tire Presure Front .7-8 ATM, rear 1.75 ATM
Brakes Drum
Dry Weight 58kg
Km Per Gallon 1lt per 60km
Fuel Capacity 5.9lt
Max Speed 70kmh
Initial Price 108,000 Italian Lira
Electrical System 6 volt
Sparkplug Bosch 225 short thread
wheel Base
Maximum Length
Ground Clearance
Maximum Seat Hight
Minimum Turning Radius
Colour Light Grey 8012 (version 2 only)
Olive Green 8021
Sand beige 8029
Engine Colour Fiat 690