Model 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