Lambretta 150 Special X Series 3

Lambretta 150 Special X Series 3.

Technical Specification

Model	150 Special X Series 3
Amount Produced	31238
Production Dates	October 1966 – January 1969
Frame Prefix	SX150 (Type 19)
Engine Prefix	SX150
Frame Starting Number	750001
Engine Starting Number	750001
Homologation	4770 OM
Engine	148cc, two stroke, 57x58mm
Power and Rate	9.38hp at 5600rpm
Compression Ratio	1:7
Head and Cylinder	Aluminium and cast iron
Engine Cooling	Forced Air
Ignition	Ducati magneto
Spark Advance
Point Setting	.35-.45 mm
Carburetor	dell'orto SH 1/20
Choke	20mm
Slide	5914/2
Needle	N/A
Atomiser	5899/2
Main Jet	102
Pilot Jet	45
Starter	50
Float	5 grams
Starter	Pedal
Crankcase oil	Agip Rotra SAE 90 600cc
Transmission Oil
Oil / Gas Mix	2%
Clutch	Multiple discs in oil bath
Gears	4 speed with hand shifter
1st	10/50 1: 5,00
2nd	12/42 1: 3,50
3rd	15/39 1: 2,60
4th	19/35 1: 1,84 – 97,7 kmh
Primary Transmission	Duplex chain
Secondary Transmission
Frame	Steel tubing of strong 1290mm sections
Front Suspension	Oscilating conecting rods with hydraulic shocks
Rear Suspension	Torsion bar attached to motor with a single shock
Wheels	Dismountable wheels
Tires	3.50 x 10 pirelli or ceat
Tire Presure	Front .9 ATM, rear 1.25 ATM
Brakes	Drum
Dry Weight	120kg
Km Per Gallon	2.55lts per 100km
Fuel Capacity	8.3lt
Max Speed	97.7kmh
Initial Price	168,000 Italian Lira
Electrical System	6 volt
Sparkplug	Bosch 225 long thread
wheel Base	1290mm
Maximum Length	1800mm
Ground Clearance
Maximum Seat Hight
Minimum Turning Radius
Maximum Width	700mm
Maximum Hight	1030mm
Colour	Apple Green 8039
	New White 8059 (Internal parts)
	Spring Grey 8070
	White Thorn 8082 (Late Models)